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Physics 103
December 2021
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Physics 103 Q&A Archive of December 10, 2021

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December 10 of 2021

'Consider the energy level scheme shown in figure. Atoms are raised from level A to level B at a pump rate P. The lifetime of levels A and B are t1 and t2, respectively: Assuming that the ground state 0 is not depleted to any significant extent and neglecting stimulated emission: Write the rate…

'The displacement of a particle performing Simple harmonic motion is given by, x = 8 sin @t 6 cos @t, where distance is in cm and time is in second. The amplitude of motion is @'

In the diagram, a gas undergoes a change in pressure from a to b followed by a compression from b to c, from an initial volume of Vi = 9.47 m^3 to a final volume of Vf = 3.99 m^3. Determine the magnitude of the total work done in taking the gas from point a to point c [Units: J].

Fz 50 N oSt 20 N 158 57 N Find the resultant vector

'The conditions that the weight of a given assembly is very nearly independent of the type of the system (MB, BE, and FD) are 0 a ns >> 1 0 b. gs >> 1 C. gs >> ns >> 1 d_ gs = ns'

1921r (T= 0.462 R. mSv/h) source of strength 20 GBq is present as a wire of length 3 m. What is the exposure rate, in R/h, 4 m away from this source if a person is standing: 1 m from the left end of the source? 2 m B) Directly in the center of the 3 m length? 15 m 15 m

Consider a system of two levels E1 = 0, g1 = 1 and E2 = 1.6 x 10^20 J, g2 = 2, populated by N atoms at temperature T. See the figure below. E2 = 1.6 x 10^-20 J, g2 = 2. N = n1 + n2. n2 = E1 = 0, g1 = 1. The average energy at T = w is 0.6 x 10^62. 0.67e. 1.562.

Paramagnetism: Consider a solid in which J = Vz (mj - Vz and -Vz) (N - n + n^2l). Then, when a magnetic field (H) is applied, the energy E1 = -H and E2 = +pH. The average energy at T = 0 is: a) 0.65 Ne b) -Ne c) d) 0.5 Ne

'Paramagnetism: IF the average energy of the system is 0.1pH,then the probabilities (PT, P2) for the occupation levels are (0.45,0.55) (0.5,0.5) (1,0) (0.6,0.4)'

"k (1 Tn cos 0) 2 The potential is specified on the surface of a hallow sphere of radius R Find the potential outside the sphere assuming there is no charge 'there"

Consider a system of two levels E1 = 0, g1 = 1 and E2 = 1.6 x 10^20 J, g2 = 2. It is populated by N atoms at temperature T. See the figure below: E2 = 1.6 x 10^-20 J, 9^2 - 2N - n1 + n2, n2 = El = 0, g1 = 1. The average energy at 600K is: 0.5e^2 0.8c^2 0.6362 0.4c^2

A cylindrical cavity of length L and radius r is cut parallel to a uniformly polarized dielectric. Find the field at the center of the cavity.

'The specific heat of a non- linear diatomic molecule is given by a 3/2 kB b 2.5 kB C 3 kB d, 1 kB'

Given the partition function of a certain gas is given by Z = C(V - nb)N(T^(3N/2)), the entropy is given by kN {In C1 + In [(V - nb)T^(3/2)]} b_ kN {In C1 + In [(V - nb)/T^(3/2)]} kN {In C1 + In [7/2/(V - nb)]} d. k {In C1 + In [T^(3/2)/V]}

Consider a system of two levels E1 = 0, E2 = 1 and E2 = 1.6 x 10^-20 J, g2 = 2 is populated by N atoms at temperature T. See the figure below n1 + n2 = N n2 El = 0, g1 = 1 The entropy at T approaches 0 is a) Nklnz b) Nkln5/3 c) Nkln3

Paramagnetism: Consider a solid in which J = Yz (mj = %z and -Y) (N = n + n2). Then, when a magnetic field is applied, the energy â‚¬7 = -UH and â‚¬2 = +UH. The ratio of populations (n/N) at T = 0 is: 0 0.35 0.5 1.0

k (1 - cos Î¸)Â² The potential is specified on the surface of a hollow sphere of radius R. Find the potential outside the sphere assuming there is no charge there.

Paramagnetism: consider a solid in which J = Va ' (mj = V and -%) (N - nt nz): Then, when a magnetic field (H) is applied, the energy â‚¬1 = -UH and â‚¬2 = +UH. The average energy at T = 0 is 0.5 Ne 0.65 Ne.

'k (1 ~ cos 0) 2 The potential is specified On the surface of a hallow sphere of radius R Fiud the potential outside the splere assUing there is [O clarge tlere.'

What is the length of the vector A + B + C, the sum of three orthogonal vectors? A = 3 km B = 4 m C = 5i m Find the tensions, T, and Tz, in the ropes shown so that the system is in equilibrium. 50 N

'The equilibrium-constant expression depends on the ofthe reaction. temperature stoichiometry the quantities of reactants and products initially present mechanism'

Consider a plasma of electrons between two grounded plates. If the density of electrons is 2e0 Ã— 10^4 m^-3 where e is the elementary charge. When the distance between the plates is d = 9.7 cm, the potential in the presence of electrons at % d is a. 47.04 b. 23.52 c. 0 d. -23.52 e. 9.70

Apply the following intensity transformation to the 8-bit image of size 3x3 pixels given below and find all output values: InTea4Mie â‚¬ 113 90 60 64 11 200 70 25 210 b) Briefly describe the main characteristics of the Power Law Intensity Transformation. Which of its parameters plays a major…

For a fluid element of velocity field V = yi + xtj, the total acceleration at x = y = t = l is: a) ai + 2j b) bi + j c) 2j d) i e) 2i + 2j f) zero g) 2i + j h) 2i

An electron is moving with velocity v = v0j enters a region of uniform magnetic field B. The direction of the electron in the magnetic field region is given by the velocity vector v = v0(cosÏ‰t + jsinÏ‰t)k. The magnetic field is given by B = B0(cosÏ‰t + jsinÏ‰t)k.

Find the work done by the force field F = (y^2 cosÎ¸ + 2)i + (2ysinÎ¸ + 4)j + (32z^2 + 2)k in moving a particle along the curve Î¸ = sin t, y = 1 - 2t, z = 3t - 1 (0 < t < 1).

Ace Industries has a 50 kW air compressor that operates at full-load (LF = 1), all day for 365 days per year. If the motor for the air compressor costs €1400, the motor efficiency is 90%, and electricity costs €7.00/kW/month and €0.10/kWh, how much does it cost to operate the air compressor for…

For the circuit shown above the emf of the batteries and the resistances are listed below. 81 = 49V, 82 =6 V, R1 12 Q, R2 7 0 , R3 15 Q Determine I3-? Please express your answer in units of Amperes (A with two decimal places. If you find negative value please don"t forget the minus sign .

Two charged particles (m, -6.1m, Tz-3.2m) carry charges 41-9.6q and 92=6q respectively. These particles are projected one at a time into a region in which there is a uniform magnetic field of B=-2.87T. They enter the magnetic field at right angles, with 01=429 and 02=310 moving speeds V1=9.8v…

Q. 8: Strain energy per unit volume is given by 1 (stress)Â² 1 (b) X (stress)y 2 2 (a) strain 2 X stress 1 (d) 2 FL

'Ri 82 R3 Rz 81 For the circuit shown above the emf of the batteries and the resistances are listed below. 81 = 49V, 82 =6 V, R1 12 Q, R2 7 0 , R3 15 Q Determine I3-? Please express your answer in units of Amperes (A with two decimal places. If you find negative value please don"t forget the…

'For a He-Cd laser with a wavelength of 325 nm, if the length of the resonator is 30 cm, find: a. Frequency difference between longitudinal modes (mode spacing b. Number of modes C Frequency of the laser light'

(c) Distinguish between stress and strain associated with elasticity: (d) One end of an iron rod with a diameter of 1.6 cm and a length of 0.7 m is held in a vise. A force of magnitude 90 kN is applied perpendicularly to the end face at the other end, pulling directly away from the vise.…

A 977-kg object hangs from the lower end of a steel rod 3.9 m long that is suspended vertically. The diameter of the rod is 6.0 cm and Young's modulus for the rod is 210,000 MN/m^2. What is the elongation of the rod due to this object? Express your answer in millimeters and in two decimal…

'3 When the displacement in SHM is of 3 the amplitude. What fraction of total energy is kinetic energy and what fraction is potential energy.'

What is the Linear Energy Transfer resulting from the passage of a 0.1-MeV beta particle through standard air (where NZ-3.88x10^2 electron/cm? and [-8.6x10^-3 for air) use the relativity for the kinetic energy of electron.

106 A bar magnet vibrating in a uniform magnetic field of induction, the magnitude of which can be changed. The frequency of the bar magnet is found to reduce to half of the original frequency when the magnetic induction changes to 1.25 X 10^-5 Wb/m². Calculate the original magnetic induction.

'Find the self-inductance of a solenoidal coils with n turns per unit length and A cross sectional area and carrying current I by using a) The magnetic flux formula b) The magnetic energy formulas.'

Consider a monoatomic 1D crystal structure of period a. (a) Find the G-vectors to be included in the plane-wave expansion of the electronic wave-functions at k=0, of the above system, by assuming a cutoff energy E. (b) Starting from the central equation, write down the linear equations to be…

Problem: A thick slab extending from -a to 2 + a (and infinite in the x and y directions) carries uniform volume current I = 224 A, as shown in the figure below. Find the magnetic field as a function of z: 1) Inside the slab 2) Outside the slab (above and below) Hint: Draw a rectangular…

The electronic density of states within the free electron model, given as D(e). Calculate the average kinetic energy per electron. [Hint: Upload the answer to the system; and don't send it by e-mail]

Field Question For the hexagonal closed packed structure, shown in the figure, (a) calculate the reciprocal space translation vectors, and (b) write down the lattice type of this reciprocal lattice. [Hint: Upload the answer to the system, and don't send it by email]

'ACTIVITY 32 resultant vectors (Note: Illustration only: No Instructions: Illustrate the following computations required, 5 pts each). 2 15m 309 NE 1. 15m @ 309 N of €'

'thick slab extending from (0 +a (and infinite in the and directions) carries uniform volume cunent 2z2 { aS in the figure below_ Find the magnetic field as function of 2, ta inside the slab outside the slab (above and below) Hint: drav rectangular Amperian loop inside and outside'

Consider a white dwarf star that has a thin, high-opacity, and non-degenerate shell at an effective temperature of 28000 K. Mass of the white dwarf is one solar mass and the radius of this star is 10-2 times the solar radius. This white dwarf possesses non-degenerate carbon nuclei and high…

If M = 500 N.m, what is the resultant moment at point O as a Cartesian vector: 4 m 600 Nm 450 N 600 N 2 m 3 m

'Determine the smallest force F1 such that the resultant of the three forces F1, Fz, and Fz is vertical, and the angle alpha at which Fi should be applied. Fz 200 Ib F3 I00 Ib 309 458'

Exenele 1219 depicts the bowling scanan Two Orgel each equal to +2.00 C, are placed at the corners of a square 0.50 m on each side, as shown in the sketch. SUUM 0.500 m Find the net electric field at point Q1 Bly - 0.250 m.

An inverted hemispherical shell of radius R carries a uniform surface charge density Ps. Find the potential difference between the point P2(0,0,R) and the center P1(0,0,0). Fig:

Determine the frequency and duty cycle of a rectangular wave generator circuit using a 555 timer. ~10Hz 350Î© Output 40Î© 3500Hz 555 500Î© 0.4V 0.01Î¼F

A step voltage of 1 V amplitude is applied to the input of a CR-RC differentiator-integrator network with equal time constants. What is the amplitude of the shaped pulse?

The load voltage waveform of a single-phase full bridge inverter supplied from a 300V DC voltage source is shown in the figure below. The output frequency is 50Hz, and the load consists of series R-L components. The load values are 20Î© and 0.04H, respectively. (Conduction interval for half…

Interference_ QUESTION 20 The velocity of sound in a certain medium is 1000 m/s. If a sound wave has a frequency of 500 Hz, the wavelength would be 2 m.

'On an air track, glider of mass 200 g traveling at a speed of 2.0 m.s-1 collides with a stationary glider ofmass 100 g and sticks to it: The rebound coefficient is 1.00 0.76 0.20 D. 1.33 0.50 m m2 V2 = 0'

The emissive power of a blackbody depends on the fourth power of the temperature and is given by W = AT^4. Where: W = emissive power (BTU/ft^2/hr), A = Stefan Boltzmann constant (0.171x10^-8 BTU/ft^2.hr.R^4), T = temperature in R. What is the value of A in the units m^2.K+?

"BTU J s _ K _m Convert the thermal conductivity of 0.003 hr _ 'F _ ft"

'What is the value of the constant & such that the current density field J 624y8€ + x222y ax?_ 3 zz lis a static (time-independent) field a. 19.20 b. 10 c. 48 d. 15.6 e. 24 f.72'

A long cylindrical conductor whose axis is coincident with the Z axis has a radius of 6 cm and carries a current characterized by a current density J = J2 AmÂ², where Jo is a constant. If the magnetic field intensity at p = 5 cm is 2 Am, the value of the constant Jo is: a. 4 b. 20.00 c. 6 d.…

'A sonometer wire of length 90 cm fixed horizontally is under a constant tension: Where should a bridge be placed below the wire So that the two segments can emit notes whose frequencies are in the ratio 2 : 1 ?'

Within the sphere r < 4 cm, if the electric field intensity inside the sphere is given by E = % +, what is the total charge enclosed? 2e0 Vlm; where Po = 9 x 10^-2. 2.71 pC, 6.3.62 pC, 0.50 pC, 0.121 pC, 0.81 pC, 10.86 pC.

What is the value of the constant & such that the current density field J 624y8€ + x222y ax?_ 3 zz lis a static (time-independent) field a. 19.20 b. 10 c. 48 d. 15.6 e. 24 f.72

Find the resistance between the inner and the outer curved surfaces of the block shown below, where the material is Silver (ρ = 6.17 x 10^6 Ω/m). If the same current crosses both inner and outer curved surfaces (J = 2π A/m), assume: Pa = 2 cm, Pb = 6 cm, and 2 = 5 cm.

The magnetic field intensity in a certain conducting medium is given by H = ryf + rzy mAm. The total current through the surface defined by 2 = 1, 4 < y < 8, 2 < x < 5 is 9.00 mA. b. 5.40 mA c. 36.00 mA d. 18.00 mA e. 27.20 mA f. 12.00 mA

An infinitely long conductor of radius 18 cm carries uniform current which J = 142 Nm. The magnetic vector potential at p = 9 cm is 106.88ay nWb/m - 35.63az nWb/m c - 106.88az nWb/m d. - 35.63ay nWb/m 178.13az nWb/m - 178.138y nWb/m.

The yz-plane contains 3 uniform sheets of charge with Ps1 = -7 pC/mÂ², the second sheet with 0s2 = -2 pC/mÂ² occupies the plane x = 11 m. The potential difference VAB between the points A(10,0,0) and B(2.9,-2,2) is 8.1 V.

What is the value of the constant & such that the current density field J=Tr*yt+220 ariy' 22 is a static (time-independent) field? a. 182.0 c. 224.00 d. 560 e. 280. 6. 126

[CLO6] A long cylindrical conductor whose axis is coincident with the Z axis has a radius of 8.4 cm and carries a current characterized by current density J = 2 A/mÂ², where Jo is constant. If the magnetic field intensity at p = 7.4 cm is A/m, what is the value of the constant Jo? a. 7 …

'The yz-plane contains a uniform sheet of charge with Ps1=5 pC/m?_ A second sheet with ps2=-4 pC/m2 occupies the plane X = 6 m: the potential difference VAB between the points A(5,0,0) and B(3,2,2) is a 1.02 Volts b. -1.02 Volts C 0.57 Volts d. -0.57 Volts e. 1.02 Volts f.2.04 Volts g. -2.04…

A dielectric sphere of radius 6 cm has a bound surface charge density of 2.7 nC/mÂ². The bound volume charge density in nC/mÂ³ is 135.00 b. 33.75 c. 405.00 d. 810.00 67.50 101.25

An air-filled parallel-plate capacitor is connected to a 12-volt battery. The battery is disconnected when it is fully charged to 7.3 nC. The separation distance between the plates is d1 = 8 cm. Now, if the plates are moved to a new distance d2 = 3 cm, the new energy stored in the capacitor…

What is the total charge enclosed within the sphere r < 2 cm if the electric field intensity inside the sphere is given by E = 2e0 F V/m; where Po = 6 X 10^-9 C. a. 1.51 pC b. 3.02 pC c. 0.90 pC d. 226 pC e. 1.36 pC f. 0.30 pC

For the potential Vxyz, we have VV o = 5 (V/m) and VV X i = -2.32 (V/m). Therefore, V(0,8,0) ~ V(0,0,0) = 73.60 V.

'A charged particle moves with a uniform velocity 4.1 @ (m/s) in a region where E = 152 (VIm) and B = Bo & T If the velocity of the particle remains constant; then Bo 2.56 Tesla b. 1,83 Tesla 0.29 Tesla d.1,22 Tesla 3.66 Tesla 6.0.55 Tesla'

Find the resistance between the inner and outer curved surfaces of the block shown below, where the material is Silver (6.17 x 10^6 S/m). If the same current crosses both inner and outer curved surfaces, assume: Pa = 2 cm, Pb = 3 cm, and h = 5 cm.

A dielectric material contains 7.1020 polar molecules/m³, each with a dipole moment of 3.10^-27 Cm. Assuming that all the dipoles are aligned in the direction of the electric field E = 7.10^6 V/m, the value of the relative permittivity of the dielectric is a. 4.39 b. 11.18 c. 7.79 d. 14.57

The magnetic field intensity in an iron piece (Region One); H; is directed at a 70Â° to the normal to the surface. The magnetic flux density magnitude in iron (Region One) is 86 Î¼Wb/m^2. The magnetic field H_z (AV/m) in air (Region Two) is shown in the Figure. Region One: Iron Region Two

[CLO3] A current sheet with K = 21 A/m is placed at X = 0, which separates region 1 (x < 0) and region 2 (x > 0). If Hx = 7 + 42 A/m, the magnetization Mz in region 2 is: a. 5.25 Ax + 12.00 Az A/m b. 21.00 Ax + 12.00 Ay A/m c. 10.50 Ax + 6.00 Az A/m d. 10.50 Ay + 6.00 Az A/m e. 10.50 Ax + 6.00…

"In Kirchoff's experiment; If we measure h = 0.2 mA, 1z 0.3 mA; and R1 R2 R3 5000 Ohm then the potential difference (in V) across R3 is: 0 a. 3 O b. 1.5 c. 0.5 e. 2.5 J d.1"

'the Specific Charge of Copper experiment; the slope of the graph of It vs: Am is 3 x 106 clkg: If a current of 1.5 A passes in the circuit for 10 minutes then the increase in the mass (in grams) of the cathode is: a.1.2 b. 2 0.005 d.24 e. 0.3'

"In the Magnetic Field Experiment; when there is a current flowing in the coil, the needle of the compass points in the direction of: a. The magnetic field of the coil at its center: b. Normal to the magnetic field of Earth: c. The magnetic North of earth: d: The horizontal component of Earth's…

'In the Specific Charge of Copper experiment; the slope of the graph of It vs. Am is 3 X 106 clkg: If a current of 2 A passes in the circuit for 12 minutes then the increase in the mass (in grams) of the cathode is: a: 0.48 b. 0.05 c.1.44 d. 0.008 e 2.4'

In Kirchoffs experiment; the current and potential differences are measured. What happens if R2 is removed? a. I2 becomes zero and I1 = I3 b. All currents and potential differences become zero. c. I3 and I1 both become zero. d. V2 and I2 both become zero. e. All currents become zero

'Time left 0.48.36 In the Magnetic Field experiment; the angle between the resultant field at the center of the coil and the Earths magnetic field is measured This angle will increases if: a. the current in the coil decreases. b. the current in the coil increases: the current is kept the same…

The maximum unknown emf that can be measured by a potentiometer circuit is 10 V. To increase the maximum unknown emf that can be measured we can: a. use a wire with a higher resistivity b. we cannot do this c. use a shorter wire. d. use a longer wire. e. use the same wire but increase the emf…

"In the Specific Charge of Copper experiment; if the measured value of the current is always greater than the true value; then this will lead to: a. an increase in the calculated value of the specific charge of copper and a decrease in the slope of the graph of It vs: Am a smaller slope of the…

Suppose you start charging a capacitor in an RC circuit at t = 0, with C = 10-4 F, R = 20 kÎ©, and the emf of the power supply is 30 V. Then the slope (in units of C/s) of the graph of Q vs. t at t = 2 s is: a. 0.00056 b. 0.0015 c. 0.0025 d. 0.3 e. 0.0017

'The maximum unknown emf that can be measured by a potentiometer circuit is 10 V. To increase the maximum unknown emf that can be measured we can: 0 a we cannot do this_ b use the same wire but increase the emf of the power supply: use a wire with a higher resistivity. d: use a shorter…

0.2mA, hz = 0.4mA, and Rp = Rz = R3 = 4000 Ohm. Then the potential in Kirchhoff's experiment, if we measure h = difference (in V) across Ra, is: R2 I3 J, R} @ 24 @: 16 4.3.2 0.8

In the Electric Field Mapping experiment, the emf of the power supply is 20 V and the slope of the calibration graph is 50 V/m. If the emf of the power supply is increased by 10 V, then the slope (in units of V/m) becomes: a. 28 b. 30 c. 60 d. 45 e. 75

In the Specific Charge of Copper experiment; the slope of the graph of It vs. Am is 3 x 106 clkg: ' If a current of 1.5 A passes in the circuit for I0 minutes then the increase in the mass (in grams) of the cathode is: 0 a. 1.2 b.2.4 0 C.2 d.0.005 e.0.3

The maximum unknown emf that can be measured by a potentiometer circuit is 10 V. What will lead to a lower value of the maximum unknown emf that can be measured: use a longer wire; use a shorter wire. we cannot do this use the same wire but decrease the emf of the power supply: use a wire with…

The induced emf in a conducting loop is proportional to: a. The rate of change of the magnetic flux cutting the loop: b. The magnitude of the magnetic flux cutting the loop: C. The resistance of the loop. d. The magnitude of the magnetic field cutting the loop. e. The rate of change of the…

'Time left 0.48.36 In the Magnetic Field experiment; the angle between the resultant field at the center of the coil and the Earths magnetic field is measured This angle will increases if: a. the current in the coil decreases. b. the current in the coil increases: the current is kept the same…

'Time leit 0.48.32 Suppose a power supply has an emf of 22 Volt and an internal resistance of 3 Ohm: The total maximum power (in Watt) that can be dissipated in a circuit consisting of the power supply in series with another resistance is: 0 a. 11 b. I00 c.161 d.81 8.40'

In Kirchoffs experiment; If we measure h = 0.3 mA; I2 = 0.4 mA, and Ry = Rz = Rz = 3000 Ohm then the potential difference (in V) across Ra is: a.1.5 b.12 c.0.1 d.21 e.9

'In the Specific Charge of Copper experiment; the slope of the graph of It vs. Am is 3 X 106 clkg: If a current of 2 A passes in the circuit for 12 minutes then the increase in the mass (in grams) of the cathode is: a: 0.48 b. 0.05 c.1.44 d. 0.008 e 2.4'

A two parallel metal plates TEM line (plate width 10 cm wide), separated in air by D = 0 cm, and extremely long. A voltage - v(t) = 10 cos(Ï‰t) V is applied to the plates at one end (2 = 0). What is the power being fed to the line? a) 0.27 W b) 2.65 W c) 37.7 W d) 13 W e) None

Find the velocity of transverse wave along a string of linear density 3.6 X 10 kg/m, when it is under a tension of 1.8 kg wt: (g = 9.8 mls?)

Time Left 045: The induced current in a conducting loop is proportional to: a. The resistance of the loop b. The rate of change of the magnetic flux through the loop c. The magnitude of the magnetic field cutting the loop d. The magnitude of the magnetic flux cutting the loop e. The rate of…

Nuclear Physics - Krane 2- Explain the 'transient and steady' equilibrium state.

A sonometer wire of length 35 cm is in unison with a fork. Calculate the frequency of the fork. Given T = 10 kg wt, mass per unit length = 10-3 kg/m, acceleration due to gravity = 9.8 m/s².

A particle confined in an infinite potential well (box) of sides at x = 0 and x = a is located in the left quarter of the box such that it is described by the wave function w(x) = VaTa for 0 < x < a/4 and w(x) = 0 elsewhere. Calculate the probability that a measurement of the energy yields…

'Two identical objects attract each other with an electric force of 6.0 N: What will he the force if the amount of charge On each object is doubled and the distance between them is reduced to one-fourth its initial value? 0384 N 2. 064 N 0128 N 0256 N 5. 0512 N'

"Using Wien's displacement law; calculate frequency for high energy density at temperature of 1000 K for Uv (radiated energy) and (frequency) curve Also write spectrum name"

62 A particle executes linear S.HM, of period 4 seconds and amplitude 4 cm. Find the time taken by it to describe 4 distance of 1 cm from positive extreme position.

An electron is traveling in a circle having radius 1.00 A with a moment of inertia 9.11 x 10^(-31) kgm. The energy (in joule) of the rotational wavefunctions with m = # is 6.1 x 10^(-19) B, 2.44 x 10^(-18) C, 9.1 x 10^(-31) D, 9 x 10^(-31) S.

'For !ly) tye-}*/2, the eigenvalue Of the operator A= 62 0.25 0.75 1,25'

The microwave spectrum of a diatomic molecule (reduced mass 6.6 x 10^-27 kg) consists of a series of equally spaced lines with Av = 12.8 cm. The internuclear distance is: 163 pm 138 pm 138 A 148 pm 152 pm 0 A 0 B 0 D 0 E

For any given x, the eigenvalue of the operator A = 6x^2.

The probability of finding particles moves in the left quarter of a one-dimensional box of length L at energy level n is given by: 15% 20% 25% 35% 50%

The position vector (t) = cos(t)i + sin(t)j function time object moving along circular path is given 2.1 Show that the object moves on a circular path of radius 1. 2.2 Is the object moving with constant velocity? Support your answer with calculation. 2.3 Show that the angle between the object's…

Determine the rate of heat transfer conducted through a 2 cm-thick hardwood board / = 0.22 W/m K; heat transfer area of 1.5 mÂ² with a temperature difference between the two sides of 15 Â°C.

02f 1.3 Give the function f(x,v,z) = 3x^2 + Zxyz + {y 10z. Find at the point (2,1,1). drdy 1.4 Find unit vector normal to the surface #(x,Y,z) = Zxz' _ xlyat the point (-3,4,51

'3.2 Given the vector field V =y(-1) + Zxj: 3.2.1 Make rough sketch of the vector field: 3.2.2 Determine the divergence of this field. 3.2.3 Is the field a source field or sink field? Give reason for your answer.'

3. Is the vector field V(c; 0,2) = ;e - Znd , rotational? Support your answer with calculation:

5_ A laser has a power 0f 22.0 W and a beam radius of 0.5 mm (a) Find the intensity of the laser: (b) Suppose you were floating in space and pointed the laser away from you. What would your acceleration be? Assume your total mass is 72.0 kg and the force is directed through your center of mass

'904 kg ship is floating in the ocean It is 5 m long, How many centimeters of the ship is below the water line? wide, and deep_'

Viscosity Question: Benzene at 20Â°C has a viscosity of 0.000651 Pas. What shear stress is required to deform this fluid at a strain rate of 4900 s^-1? (Answer: 3.19 Pa)

Calculate the heat needed to heat up a 6.0 kg copper from 15°C to 80°C. The specific heat capacity of copper is 3.9 x 10^2 J/kg°C.

A crate of mass 50kg is being dragged at a steady speed of 4 m/s up a slope inclined at an angle θ to the horizontal, where sin θ = 0.4. The total resistance is 250 N. Find the power.

Two protons, located on the z-axis and separated by distance d (i.e. z = dk), are subject to a z-oriented magnetic field B = Bk. (a) Ignoring all interactions between the two protons, find the energy levels and stationary states of this system; (b) Treating the dipole-dipole magnetic…

135_ In a strictly steady state situation, both the ions and electrons will follow the Boltzmann relation Ro â‚¬xp ' (-46/KT). For the case of an infinite, transparent grid charged to potential &, show that the shielding distance is then given approximately by 45"KT. Show that Ap is determined…

'3 : A 40 cm long spring becomes 47 cm when a load of 10 N hangs to free end. Determine the force constant of a spring:'

Two protons, located on the z-axis and separated by distance d (i.e. 7 = dk), are subject to a z-oriented magnetic field B = Bk. (a) Ignoring all interactions between the two protons, find the energy levels and stationary states of this system; (b) Treating the dipole-dipole magnetic…

2+-5. Suppose electrons obey the Boltzmann relation of Problem 1-5 in a cylindrically symmetric plasma column in which n(5) varies with scale length Î». Using E = -âˆ‡Î¦, find the radial electric field for given Î». (b) For electrons, show that finite Larmor radius effects are large if v is as…

'State Biot-Savart law and derive the expression for the magnetic field for long straight wire carrying current /, al perpendicular distance R from the wire.'

'A solenoid 1.30 m long and 2.60 cm in diameter carries current of 18 A The magnetic field inside the solenoid is 23 mT. Find the length of the wire forming the solenoid 3+2'

'Q. 44 Angular momentum of two bodies of momentum of inertia (I1) and (I2) are same (I1 > I2). If (E1) and (Ez) are rotational kinetic energies them : (a) E1 = Ez (b) E1 > Ez (c) Ez < Ez (d) E1 > Ez'

For the cubic zinc-blende structure, shown in the figure, determine the Bravais lattice type and write down the primitive translation vectors. What are the basis of the primitive unit cell? Calculate the packing fraction.

'b) Two semicircular arcs having radii Rz 7.80 cm and Ri 3.15 cm as shown in Fig below, carry current 0.28[ and have the same center 0f curvature C What are the magnitude and direction (into Or Out Of the page) Of the net magnetic field at C? 3+2'

Draw a conducting rectangular solid of dimensions d = 5 m, d2 = 3 m, and d3 = 2 m, which moves with a constant velocity v = (20 m/s)i through a uniform magnetic field, B = (30 mT)j. What are the resulting electric field within the solid, in unit-vector notation, and (ii) the potential…

Question 2 For the amplifier shown in figure 2, if Bz = 150VCC = 0 Find all DC parameters: Define dynamic range and amplifier power gain 03 ZNSOBS R9 K6; Kik R8 Figure 1

Please explain each process in detail as possible. Question: Consider the truss structure as shown below that has a hinge support at node A and a roller support at node B. How can you find the rotation of member 460?

Find the mesh currents, Vo, and Io using mesh analysis: 96 V 40 Î© 10 Î© 20 Î© 80 V 2Io 80 Î© Vo Avo

'Synchrotron emission by electrons of V = 2 x 107 in a supernova remnant peaks in the ultraviolet at a wavelength of A = 100 nm: How strong must the local magnetic field be? Explain all steps in your answer'

'Two satellite of a planet have periods 32 days and 256 day. Find the ratio of their radii.'

'Q 2 What will be the maximum speed of a car on a road turn of radius 30 m, if the coefficient of friction between the tyres and the road is 0.4 ? (Take g = 9.8 m/s?) (a) 10.84 mls (b) 9.84 mls (c) 8.84 mls (d) 6.84 mls'

'bullet is shot straight up with an initial speed of 180 m/s. How long is the bullet in the air and how high does the bullet go?'

"The radius of the earth is 6400 km Calculate the velocity with which a body should be projected So as to escape the earth's gravitational influence:"

'What is the Kinetic Energy of a 1200 kg object that is moving with a speed 0f 24 mls?'

A0.2 kg ball is rest on edge of the top ofa 1 m height table: Does the ball have kinetic energy? Explain.

'A metal wire has a length of 30.0 m and a diameter of 0.750 mm. The entire length of wire has a resistance of 2.00 0. Find the resistivity (in 0 m) of the metal: Need Help? Rend ll'

'9 Determine the angular acceleration of a rotating body which slows down from 500 rp.m. to rest in 10 second:'

"1 4 : The mass and radius of the moon are 81 and times those of the 3.7 earth: The gravitational acceleration on the earth's surface is 9.8 m/s? Find the gravitational acceleration on the surface of the moon."

'Dry air is a pretty decent insulator; it has a very high resistivity of 3 X 1013 Q m Consider a capacitor that has square plates 15 cm on a side, separated by 0.8 mm of dry air: The capacitor charged such that it has a potential of 320 V between the plates First; what is the resistance of the…

2 - Calculate the electric flux passing through the surface as shown below: Î¦ = Î£Eâ‹…Î”A Î¦ = E1â‹…A1 + E2â‹…A2 + E3â‹…A3 + E4â‹…A4 + E5â‹…A5

Q 5 Two tuning forks A and B produce 8 beats when sounded together. When B is slightly loaded with wax, the beats are reduced to 4 per second. If the frequency of A is 512 Hz, the frequency of B is (a) 508 Hz (b) 516 Hz (c) 504 Hz (d) 520 Hz.

'A proton is moved from point A to point B along Path 1 as shown in the picture. Path The potential difference it moves through is 330 V_ Is point A o point B at a higher cm potential? 3 How much work is done, in eV? The proton is now moved from point B to point A, backwards along Path Now…

'36 A simple harmonic progressive wave of frequency 5 Hz is travelling along the positive k-direction with a velocity of 40 m/s. Calculate the phase difference between two points separated by a distance of 0.8 m.'

Two wires of the same material and having the same diameter have their lengths in the ratio 1 : 3 and are under tensions in the ratio 1 : 4, compare their fundamental frequencies.

'Q. 19 : If the pressure of an ideal gas decreases by 10%, isothermally, then its volume will (a) decrease by 9% (b) increase by 10% (c) increase by 11.6% (d) increase by 9%'

Consider the pipe assembly in the Figure below: The applied forces are defined as F1 = (100i - 120j + 75k) kN and F2 = (-200i + 250j + 100k) kN. 1. Determine the resultant force vector F in kN. 2. Determine the position vector rA in m. 3. Determine the moment of the forces M0 about point O in…

'Q. 13 At what temperature, the RM.S. speed of gas molecules is half the value at NTP ? (a) 68.25 K (b) 273 K (c) 345 K (d) 0 K'

'Q. 18 : The speed of molecules are given by 2 mls, 3 mls, 4 mls, 5 mls, and 6 m/s. The mean square speed is (a) 20 m?/s? (b) 25 m?/s2 36 m?/s2 (d) 18 m?/s2'

'The symbol for charge is Q True False Question 2 Polarization is the separation of charge in an object which remains neutral, True False'

The linear density of a wire of length 0.5 m is 2 x 10^-3 kg/m. If the tension in the wire is 20 N, calculate its fundamental frequency and the frequency of the first overtone.

The magnitude of electric intensity E such that an electron placed in an electric field would experience an electric force equal to its weight is expected to be 4.6x10^6 N/C. A point charge of 8.5 C is kept at the origin. The magnitude of the strength of the field at (4m, 3m) is a) 3.06x10^9…

'A wire of mass 0.5 gm and length 0.5 m is under a tension of 2 kg: wt: Calculate the frequencies of the fundamental and second overtone.'

Question: Pauli matrices are important in physics. They are: Ïƒâ‚ = (0 1) (1 0) Ïƒâ‚‚ = (0 -i) (i 0) Ïƒâ‚ƒ = (1 0) (0 -1) Now consider a vector U = Bn where B is a number and n is a unit vector. Now consider the following matrix: P = BÏƒâ‚ + nÏƒâ‚‚ + nÏƒâ‚ƒ. Prove…

'A wire of length 100 cm and having mass of 3 gram is subjected to a tension of 29.4 N. Calculate the fundamental frequency of vibration of the string:'

'glass plate of length 20 cm, breadth 10 cm and thickness 5 mm is held vertically with its length just touching the surface of water in the tank Find the force acting on the plate due to surface tension. (S.T. of water = 70 x 10-3 N/m) .'

The surface tension of water at 0Â°C is 75.5 dyn/cm. Calculate the surface tension of water at 25Â°C. (Î± for water = 2.7 x 10^-3/Â°C)

Q3// A raindrop with radius of 6mm is evaporated in air at 25 Â°C and at where the diffusivity coefficient of water vapor in air at these conditions is 0.26 cm/s. Find: The evaporation rate of drop in air and mass transfer coefficients; 2- The evaporation rate of drop if the temperature rises…

'68 The length of simple pendulum SI increased by 44%. Determine the % increase in time period'

'54 Determine the pressure required to reduced the given volume of water by 1% (Bulk modulus or water = 2 x 108 N / m2)'

"There's a good chance you're completing this HW on a laptop. typical laptop uses about 15 W of power provided by a battery operating at 11.5 V: Under such conditions, 10 hrs is a typical lifetime of the battery:"

'A simple pendulum of length 1 m has a mass of 10 g and oscillates freely with an amplitude of 2 cm. Find its potential energy at the extreme position. [g = 9.8 m/s?]'

A large conducting cone (θ = 35°) is placed on a conducting plane with a tiny gap separating it from the plane, as shown below. If the cone is connected to a Vo = 40 V source, find V at (r = 5, θ = 55°, φ = 45°). a: 22.62 V b: 79.18 V c: 33.94 V d: 11.31 V e: 16.97 V f: 6113.12 V

'The length of simple pendulum IS increased by 449. Determine the % increase in time Period.'

'10 Q2 resistor; 10 pF capacitor and 10 mH inductor are connected in series with voltage source with an angular frequency; W_ of 1000 radians per second connected across them_ Which of the following facts is INCORRECT: The magnitude of the effective impedance of the circuit, Zeff; in polar form…

'tic field at the point 0,the common z (out of page)'

'What pressure is required to reduce the volume of a lead block by 1% ? (Given : Bulk modulus of lead = 6 x 109 S.U. units)'

The unit of the attenuation constant is: Select one: a. Alm b. A/sec c. Vlsec d. Nplm e. rad/sec f. rad/m g. Np/sec h. VIm

a) The second of Maxwell's equations states that the divergence of the magnetic flux density is always zero, i.e. âˆ‡â‹…B = 0. What does this tell you generally about the distribution of magnetic flux? Describe the impact of a non-zero value on the right-hand side of Maxwell's second…

The stored electric energy in a spherical capacitor whose inner radius a = 6 cm, outer radius b = 10 cm filled with a dielectric material of Îµ = 3.7 is assumed. V(r-a) = 29 V and V(r=b) = 0 V. Options for the stored electric energy are: a. 77.79 nJ b. 25.93 nJ c. 129.65 nJ d. 20.74 nJ e. 10.37…

A large conducting cone (Î¸ = 0-35Â°) is placed on a conducting plane with a tiny gap separating it from the plane, as shown below. If the cone is connected to a Vo = 40 V source, find V at (r = 5, Î¸ = 55Â°, Ï† = 459Â°). a. 22.62 V b. 79.18 V c. 33.94 V d. 11.31 V e. 16.97 V f. 113.12 V

"A circular race course track has a radius of 500 m and is banked to 10'. If the coefficient of friction between tyres of vehicle and the road surface is 0.25. compute : (a) The maximum speed to avoid slipping (b) The optimum speed to avoid wear and tear of tyres. (g = 9.8 mls?)."

'motor van weighing 4400 kg rounds a level curve of radius 200 m on unbanked road at 60 km/hr What should be minimum value of coefficient of friction to prevent skidding At what angle the rod should be banked for this velocity ?'

'A cylindrical solenoid with radius 1.00 cm and length 10.0 cm consists of 300 windings of AWG 20 copper wire, which has a resistance R of 0.6277 Q and inductance 355.3 pH This solenoid is connected in series with 10.0 HF capacitor; which is initially uncharged. magnetic field directed along…

5. The player with the ball in a basketball game has to beat the remaining seconds to win over the opponent who has a two-point lead. To achieve this, the player has to shoot the ball at a height of 2 m from the opponent's court while standing 25 m away from the hoop and throwing at an angle of…

'Dry air is a pretty decent insulator; it has a very high resistivity of 3 X 10/3 Q m . Consider a capacitor that has square plates 15 cm on a side, separated by 0.8 mm of dry - air: The capacitor is charged such that it has a potential of 320 V between the plates'

Distance of a planet from the earth is 2.5 X 107 m. If mass of planet is same as that of the earth, calculate the force of gravitation between then (mass of earth = 5.98 x 1024 kg, G = 6.67 x 10-11 Nm2 / kg2)

'Assuming the earth to be sphere of uniform mass density, how much would a body weight half way down to the centre of the earth, if it weighted 100 N on the surface:'

'Q7. Assume a sinusoidal input voltage with peak value Va into the circuit below. Determine the shape and amplitude of the output voltage over Rz: AC source DI Sketch output waveform and show voltage levels'

[Numbers change] A proton is flying through space with an initial velocity Vo = 1.9 x 10^6 m/s, as shown below: It interacts with a fixed negative charge q = -7 nC along the path shown. What is its speed in m/s when it reaches the point P, given that x = 1.3 cm and y = 5.6 cm? Give your answer…

'How much energy in joules does the laptop battery hold when fully charged? Give your answer significant digits 540 Question 8 [Numbers change] If this amount of energy were used to lift a person with mass 92 kg off the ground, how far up would it lift them (in meters to 0.1 m precision)?'

'What is the capacitance of this capacitor (in pF to 3 significant digits)?'

'Dry air is a pretty decent insulator; it has a very high resistivity of 3 X 1013 Q m Consider a capacitor that has square plates 15 cm on a side; separated by 0.8 mm of dry air: The capacitor is charged such that it has a potential of 320 V between the plates'

"There's a good chance you're completing this HW on a laptop. A typical laptop uses about 15 W of power provided by a battery operating at 11.5 V. Under such conditions, 10 hrs is a typical lifetime of the battery:"

'What is the capacitance of this capacitor (in pF to 3 significant digits)?'

A lifeguard standing on the beach 15 meters from the water when she spots a nonswimmer 15 meters from shore in need of rescuing. Unfortunately, she is 100 meters down the beach from the swimmer and all of her reach throw row equipment is being used. She decides to run across the beach and make…

'Dry air is a pretty decent insulator; it has a very high resistivity of 3 X 1013 Q m Consider a capacitor that has square plates 15 cm on a side; separated by 0.8 mm of dry air: The capacitor is charged such that it has a potential of 320 V between the plates'

'79 At What depth below the surface of the earth, value of (g) is same as that at a height of 32 km above the surface of the earth:'

'Assuming the voltage on the plates is held fixed, what fraction of the total energy stored in the capacitor is dissipated via conduction through air between the plates in 1 minute? (precision 0.01)'

'How much energy in joules does the laptop battery hold when fully charged? Give your answer to 2 significant digits.'

'A resistor is wired to a battery in a circuit and dissipates a power P1 as heat: A second resistor; with the same resistance; is added in series with the first resistor; leading the circuit (i.e. both resistors) to dissipate a power Pz as heat: How much does the circuit dissipate with two…

A resistor is wired to a battery in a circuit and dissipates a power P1 as heat. A second resistor, with the same resistance, is added in series with the first resistor, leading the circuit (i.e. both resistors) to dissipate a power P2 as heat. How much does the circuit dissipate with two…

'The next five questions use this description_ Dry air is a pretty decent insulator; it has a very high resistivity of 3 X 1013 0 m . Consider a capacitor that has square plates 15 cm on a side, separated by 0.8 mm of dry air. The capacitor is charged such that it has a potential of 320 V…

A particle of mass m 1.0 mg and charge 2.0 ÂµC is placed in a region of space that has a constant electric field of magnitude 2000 N/C. What is the magnitude of the acceleration of the particle? 1 m/sÂ² 40 sÂ² 9.8 m/sÂ² 2000 m/sÂ² 4000 m/sÂ² 4 x 10â¶ m/sÂ²

'Consider the energy level scheme shown in figure. Atoms are raised from level A to level B at a pump rate P. The lifetime of levels A and B are t1 and t2, respectively: Assuming that the ground state 0 is not depleted to any significant extent and neglecting stimulated emission: Write the rate…

'The displacement of a particle performing Simple harmonic motion is given by, x = 8 sin @t 6 cos @t, where distance is in cm and time is in second. The amplitude of motion is @'

In the diagram, a gas undergoes a change in pressure from a to b followed by a compression from b to c, from an initial volume of Vi = 9.47 m^3 to a final volume of Vf = 3.99 m^3. Determine the magnitude of the total work done in taking the gas from point a to point c [Units: J].

Fz 50 N oSt 20 N 158 57 N Find the resultant vector

'The conditions that the weight of a given assembly is very nearly independent of the type of the system (MB, BE, and FD) are 0 a ns >> 1 0 b. gs >> 1 C. gs >> ns >> 1 d_ gs = ns'

1921r (T= 0.462 R. mSv/h) source of strength 20 GBq is present as a wire of length 3 m. What is the exposure rate, in R/h, 4 m away from this source if a person is standing: 1 m from the left end of the source? 2 m B) Directly in the center of the 3 m length? 15 m 15 m

Consider a system of two levels E1 = 0, g1 = 1 and E2 = 1.6 x 10^20 J, g2 = 2, populated by N atoms at temperature T. See the figure below. E2 = 1.6 x 10^-20 J, g2 = 2. N = n1 + n2. n2 = E1 = 0, g1 = 1. The average energy at T = w is 0.6 x 10^62. 0.67e. 1.562.

Paramagnetism: Consider a solid in which J = Vz (mj - Vz and -Vz) (N - n + n^2l). Then, when a magnetic field (H) is applied, the energy E1 = -H and E2 = +pH. The average energy at T = 0 is: a) 0.65 Ne b) -Ne c) d) 0.5 Ne

'Paramagnetism: IF the average energy of the system is 0.1pH,then the probabilities (PT, P2) for the occupation levels are (0.45,0.55) (0.5,0.5) (1,0) (0.6,0.4)'

"k (1 Tn cos 0) 2 The potential is specified on the surface of a hallow sphere of radius R Find the potential outside the sphere assuming there is no charge 'there"

Consider a system of two levels E1 = 0, g1 = 1 and E2 = 1.6 x 10^20 J, g2 = 2. It is populated by N atoms at temperature T. See the figure below: E2 = 1.6 x 10^-20 J, 9^2 - 2N - n1 + n2, n2 = El = 0, g1 = 1. The average energy at 600K is: 0.5e^2 0.8c^2 0.6362 0.4c^2

A cylindrical cavity of length L and radius r is cut parallel to a uniformly polarized dielectric. Find the field at the center of the cavity.

'The specific heat of a non- linear diatomic molecule is given by a 3/2 kB b 2.5 kB C 3 kB d, 1 kB'

Given the partition function of a certain gas is given by Z = C(V - nb)N(T^(3N/2)), the entropy is given by kN {In C1 + In [(V - nb)T^(3/2)]} b_ kN {In C1 + In [(V - nb)/T^(3/2)]} kN {In C1 + In [7/2/(V - nb)]} d. k {In C1 + In [T^(3/2)/V]}

Consider a system of two levels E1 = 0, E2 = 1 and E2 = 1.6 x 10^-20 J, g2 = 2 is populated by N atoms at temperature T. See the figure below n1 + n2 = N n2 El = 0, g1 = 1 The entropy at T approaches 0 is a) Nklnz b) Nkln5/3 c) Nkln3

Paramagnetism: Consider a solid in which J = Yz (mj = %z and -Y) (N = n + n2). Then, when a magnetic field is applied, the energy â‚¬7 = -UH and â‚¬2 = +UH. The ratio of populations (n/N) at T = 0 is: 0 0.35 0.5 1.0

k (1 - cos Î¸)Â² The potential is specified on the surface of a hollow sphere of radius R. Find the potential outside the sphere assuming there is no charge there.

Paramagnetism: consider a solid in which J = Va ' (mj = V and -%) (N - nt nz): Then, when a magnetic field (H) is applied, the energy â‚¬1 = -UH and â‚¬2 = +UH. The average energy at T = 0 is 0.5 Ne 0.65 Ne.

'k (1 ~ cos 0) 2 The potential is specified On the surface of a hallow sphere of radius R Fiud the potential outside the splere assUing there is [O clarge tlere.'

'The equilibrium-constant expression depends on the ofthe reaction. temperature stoichiometry the quantities of reactants and products initially present mechanism'

Consider a plasma of electrons between two grounded plates. If the density of electrons is 2e0 Ã— 10^4 m^-3 where e is the elementary charge. When the distance between the plates is d = 9.7 cm, the potential in the presence of electrons at % d is a. 47.04 b. 23.52 c. 0 d. -23.52 e. 9.70

Apply the following intensity transformation to the 8-bit image of size 3x3 pixels given below and find all output values: InTea4Mie â‚¬ 113 90 60 64 11 200 70 25 210 b) Briefly describe the main characteristics of the Power Law Intensity Transformation. Which of its parameters plays a major…

For a fluid element of velocity field V = yi + xtj, the total acceleration at x = y = t = l is: a) ai + 2j b) bi + j c) 2j d) i e) 2i + 2j f) zero g) 2i + j h) 2i

An electron is moving with velocity v = v0j enters a region of uniform magnetic field B. The direction of the electron in the magnetic field region is given by the velocity vector v = v0(cosÏ‰t + jsinÏ‰t)k. The magnetic field is given by B = B0(cosÏ‰t + jsinÏ‰t)k.

Find the work done by the force field F = (y^2 cosÎ¸ + 2)i + (2ysinÎ¸ + 4)j + (32z^2 + 2)k in moving a particle along the curve Î¸ = sin t, y = 1 - 2t, z = 3t - 1 (0 < t < 1).

Ace Industries has a 50 kW air compressor that operates at full-load (LF = 1), all day for 365 days per year. If the motor for the air compressor costs €1400, the motor efficiency is 90%, and electricity costs €7.00/kW/month and €0.10/kWh, how much does it cost to operate the air compressor for…

For the circuit shown above the emf of the batteries and the resistances are listed below. 81 = 49V, 82 =6 V, R1 12 Q, R2 7 0 , R3 15 Q Determine I3-? Please express your answer in units of Amperes (A with two decimal places. If you find negative value please don"t forget the minus sign .

Two charged particles (m, -6.1m, Tz-3.2m) carry charges 41-9.6q and 92=6q respectively. These particles are projected one at a time into a region in which there is a uniform magnetic field of B=-2.87T. They enter the magnetic field at right angles, with 01=429 and 02=310 moving speeds V1=9.8v…

Q. 8: Strain energy per unit volume is given by 1 (stress)Â² 1 (b) X (stress)y 2 2 (a) strain 2 X stress 1 (d) 2 FL

'Ri 82 R3 Rz 81 For the circuit shown above the emf of the batteries and the resistances are listed below. 81 = 49V, 82 =6 V, R1 12 Q, R2 7 0 , R3 15 Q Determine I3-? Please express your answer in units of Amperes (A with two decimal places. If you find negative value please don"t forget the…

'For a He-Cd laser with a wavelength of 325 nm, if the length of the resonator is 30 cm, find: a. Frequency difference between longitudinal modes (mode spacing b. Number of modes C Frequency of the laser light'

(c) Distinguish between stress and strain associated with elasticity: (d) One end of an iron rod with a diameter of 1.6 cm and a length of 0.7 m is held in a vise. A force of magnitude 90 kN is applied perpendicularly to the end face at the other end, pulling directly away from the vise.…

A 977-kg object hangs from the lower end of a steel rod 3.9 m long that is suspended vertically. The diameter of the rod is 6.0 cm and Young's modulus for the rod is 210,000 MN/m^2. What is the elongation of the rod due to this object? Express your answer in millimeters and in two decimal…

'3 When the displacement in SHM is of 3 the amplitude. What fraction of total energy is kinetic energy and what fraction is potential energy.'

What is the Linear Energy Transfer resulting from the passage of a 0.1-MeV beta particle through standard air (where NZ-3.88x10^2 electron/cm? and [-8.6x10^-3 for air) use the relativity for the kinetic energy of electron.

106 A bar magnet vibrating in a uniform magnetic field of induction, the magnitude of which can be changed. The frequency of the bar magnet is found to reduce to half of the original frequency when the magnetic induction changes to 1.25 X 10^-5 Wb/m². Calculate the original magnetic induction.

'Find the self-inductance of a solenoidal coils with n turns per unit length and A cross sectional area and carrying current I by using a) The magnetic flux formula b) The magnetic energy formulas.'

Problem: A thick slab extending from -a to 2 + a (and infinite in the x and y directions) carries uniform volume current I = 224 A, as shown in the figure below. Find the magnetic field as a function of z: 1) Inside the slab 2) Outside the slab (above and below) Hint: Draw a rectangular…

The electronic density of states within the free electron model, given as D(e). Calculate the average kinetic energy per electron. [Hint: Upload the answer to the system; and don't send it by e-mail]

Field Question For the hexagonal closed packed structure, shown in the figure, (a) calculate the reciprocal space translation vectors, and (b) write down the lattice type of this reciprocal lattice. [Hint: Upload the answer to the system, and don't send it by email]

'ACTIVITY 32 resultant vectors (Note: Illustration only: No Instructions: Illustrate the following computations required, 5 pts each). 2 15m 309 NE 1. 15m @ 309 N of €'

'thick slab extending from (0 +a (and infinite in the and directions) carries uniform volume cunent 2z2 { aS in the figure below_ Find the magnetic field as function of 2, ta inside the slab outside the slab (above and below) Hint: drav rectangular Amperian loop inside and outside'

Consider a white dwarf star that has a thin, high-opacity, and non-degenerate shell at an effective temperature of 28000 K. Mass of the white dwarf is one solar mass and the radius of this star is 10-2 times the solar radius. This white dwarf possesses non-degenerate carbon nuclei and high…

If M = 500 N.m, what is the resultant moment at point O as a Cartesian vector: 4 m 600 Nm 450 N 600 N 2 m 3 m

'Determine the smallest force F1 such that the resultant of the three forces F1, Fz, and Fz is vertical, and the angle alpha at which Fi should be applied. Fz 200 Ib F3 I00 Ib 309 458'

Exenele 1219 depicts the bowling scanan Two Orgel each equal to +2.00 C, are placed at the corners of a square 0.50 m on each side, as shown in the sketch. SUUM 0.500 m Find the net electric field at point Q1 Bly - 0.250 m.

An inverted hemispherical shell of radius R carries a uniform surface charge density Ps. Find the potential difference between the point P2(0,0,R) and the center P1(0,0,0). Fig:

Determine the frequency and duty cycle of a rectangular wave generator circuit using a 555 timer. ~10Hz 350Î© Output 40Î© 3500Hz 555 500Î© 0.4V 0.01Î¼F

A step voltage of 1 V amplitude is applied to the input of a CR-RC differentiator-integrator network with equal time constants. What is the amplitude of the shaped pulse?

The load voltage waveform of a single-phase full bridge inverter supplied from a 300V DC voltage source is shown in the figure below. The output frequency is 50Hz, and the load consists of series R-L components. The load values are 20Î© and 0.04H, respectively. (Conduction interval for half…

Interference_ QUESTION 20 The velocity of sound in a certain medium is 1000 m/s. If a sound wave has a frequency of 500 Hz, the wavelength would be 2 m.

'On an air track, glider of mass 200 g traveling at a speed of 2.0 m.s-1 collides with a stationary glider ofmass 100 g and sticks to it: The rebound coefficient is 1.00 0.76 0.20 D. 1.33 0.50 m m2 V2 = 0'

The emissive power of a blackbody depends on the fourth power of the temperature and is given by W = AT^4. Where: W = emissive power (BTU/ft^2/hr), A = Stefan Boltzmann constant (0.171x10^-8 BTU/ft^2.hr.R^4), T = temperature in R. What is the value of A in the units m^2.K+?

"BTU J s _ K _m Convert the thermal conductivity of 0.003 hr _ 'F _ ft"

'What is the value of the constant & such that the current density field J 624y8€ + x222y ax?_ 3 zz lis a static (time-independent) field a. 19.20 b. 10 c. 48 d. 15.6 e. 24 f.72'

A long cylindrical conductor whose axis is coincident with the Z axis has a radius of 6 cm and carries a current characterized by a current density J = J2 AmÂ², where Jo is a constant. If the magnetic field intensity at p = 5 cm is 2 Am, the value of the constant Jo is: a. 4 b. 20.00 c. 6 d.…

Within the sphere r < 4 cm, if the electric field intensity inside the sphere is given by E = % +, what is the total charge enclosed? 2e0 Vlm; where Po = 9 x 10^-2. 2.71 pC, 6.3.62 pC, 0.50 pC, 0.121 pC, 0.81 pC, 10.86 pC.

What is the value of the constant & such that the current density field J 624y8€ + x222y ax?_ 3 zz lis a static (time-independent) field a. 19.20 b. 10 c. 48 d. 15.6 e. 24 f.72

Find the resistance between the inner and the outer curved surfaces of the block shown below, where the material is Silver (ρ = 6.17 x 10^6 Ω/m). If the same current crosses both inner and outer curved surfaces (J = 2π A/m), assume: Pa = 2 cm, Pb = 6 cm, and 2 = 5 cm.

The magnetic field intensity in a certain conducting medium is given by H = ryf + rzy mAm. The total current through the surface defined by 2 = 1, 4 < y < 8, 2 < x < 5 is 9.00 mA. b. 5.40 mA c. 36.00 mA d. 18.00 mA e. 27.20 mA f. 12.00 mA

An infinitely long conductor of radius 18 cm carries uniform current which J = 142 Nm. The magnetic vector potential at p = 9 cm is 106.88ay nWb/m - 35.63az nWb/m c - 106.88az nWb/m d. - 35.63ay nWb/m 178.13az nWb/m - 178.138y nWb/m.

The yz-plane contains 3 uniform sheets of charge with Ps1 = -7 pC/mÂ², the second sheet with 0s2 = -2 pC/mÂ² occupies the plane x = 11 m. The potential difference VAB between the points A(10,0,0) and B(2.9,-2,2) is 8.1 V.

What is the value of the constant & such that the current density field J=Tr*yt+220 ariy' 22 is a static (time-independent) field? a. 182.0 c. 224.00 d. 560 e. 280. 6. 126

[CLO6] A long cylindrical conductor whose axis is coincident with the Z axis has a radius of 8.4 cm and carries a current characterized by current density J = 2 A/mÂ², where Jo is constant. If the magnetic field intensity at p = 7.4 cm is A/m, what is the value of the constant Jo? a. 7 …

'The yz-plane contains a uniform sheet of charge with Ps1=5 pC/m?_ A second sheet with ps2=-4 pC/m2 occupies the plane X = 6 m: the potential difference VAB between the points A(5,0,0) and B(3,2,2) is a 1.02 Volts b. -1.02 Volts C 0.57 Volts d. -0.57 Volts e. 1.02 Volts f.2.04 Volts g. -2.04…

A dielectric sphere of radius 6 cm has a bound surface charge density of 2.7 nC/mÂ². The bound volume charge density in nC/mÂ³ is 135.00 b. 33.75 c. 405.00 d. 810.00 67.50 101.25

An air-filled parallel-plate capacitor is connected to a 12-volt battery. The battery is disconnected when it is fully charged to 7.3 nC. The separation distance between the plates is d1 = 8 cm. Now, if the plates are moved to a new distance d2 = 3 cm, the new energy stored in the capacitor…

What is the total charge enclosed within the sphere r < 2 cm if the electric field intensity inside the sphere is given by E = 2e0 F V/m; where Po = 6 X 10^-9 C. a. 1.51 pC b. 3.02 pC c. 0.90 pC d. 226 pC e. 1.36 pC f. 0.30 pC

For the potential Vxyz, we have VV o = 5 (V/m) and VV X i = -2.32 (V/m). Therefore, V(0,8,0) ~ V(0,0,0) = 73.60 V.

'A charged particle moves with a uniform velocity 4.1 @ (m/s) in a region where E = 152 (VIm) and B = Bo & T If the velocity of the particle remains constant; then Bo 2.56 Tesla b. 1,83 Tesla 0.29 Tesla d.1,22 Tesla 3.66 Tesla 6.0.55 Tesla'

Find the resistance between the inner and outer curved surfaces of the block shown below, where the material is Silver (6.17 x 10^6 S/m). If the same current crosses both inner and outer curved surfaces, assume: Pa = 2 cm, Pb = 3 cm, and h = 5 cm.

A dielectric material contains 7.1020 polar molecules/m³, each with a dipole moment of 3.10^-27 Cm. Assuming that all the dipoles are aligned in the direction of the electric field E = 7.10^6 V/m, the value of the relative permittivity of the dielectric is a. 4.39 b. 11.18 c. 7.79 d. 14.57

The magnetic field intensity in an iron piece (Region One); H; is directed at a 70Â° to the normal to the surface. The magnetic flux density magnitude in iron (Region One) is 86 Î¼Wb/m^2. The magnetic field H_z (AV/m) in air (Region Two) is shown in the Figure. Region One: Iron Region Two

[CLO3] A current sheet with K = 21 A/m is placed at X = 0, which separates region 1 (x < 0) and region 2 (x > 0). If Hx = 7 + 42 A/m, the magnetization Mz in region 2 is: a. 5.25 Ax + 12.00 Az A/m b. 21.00 Ax + 12.00 Ay A/m c. 10.50 Ax + 6.00 Az A/m d. 10.50 Ay + 6.00 Az A/m e. 10.50 Ax + 6.00…

"In Kirchoff's experiment; If we measure h = 0.2 mA, 1z 0.3 mA; and R1 R2 R3 5000 Ohm then the potential difference (in V) across R3 is: 0 a. 3 O b. 1.5 c. 0.5 e. 2.5 J d.1"

'the Specific Charge of Copper experiment; the slope of the graph of It vs: Am is 3 x 106 clkg: If a current of 1.5 A passes in the circuit for 10 minutes then the increase in the mass (in grams) of the cathode is: a.1.2 b. 2 0.005 d.24 e. 0.3'

"In the Magnetic Field Experiment; when there is a current flowing in the coil, the needle of the compass points in the direction of: a. The magnetic field of the coil at its center: b. Normal to the magnetic field of Earth: c. The magnetic North of earth: d: The horizontal component of Earth's…

'In the Specific Charge of Copper experiment; the slope of the graph of It vs. Am is 3 X 106 clkg: If a current of 2 A passes in the circuit for 12 minutes then the increase in the mass (in grams) of the cathode is: a: 0.48 b. 0.05 c.1.44 d. 0.008 e 2.4'

In Kirchoffs experiment; the current and potential differences are measured. What happens if R2 is removed? a. I2 becomes zero and I1 = I3 b. All currents and potential differences become zero. c. I3 and I1 both become zero. d. V2 and I2 both become zero. e. All currents become zero

'Time left 0.48.36 In the Magnetic Field experiment; the angle between the resultant field at the center of the coil and the Earths magnetic field is measured This angle will increases if: a. the current in the coil decreases. b. the current in the coil increases: the current is kept the same…

The maximum unknown emf that can be measured by a potentiometer circuit is 10 V. To increase the maximum unknown emf that can be measured we can: a. use a wire with a higher resistivity b. we cannot do this c. use a shorter wire. d. use a longer wire. e. use the same wire but increase the emf…

"In the Specific Charge of Copper experiment; if the measured value of the current is always greater than the true value; then this will lead to: a. an increase in the calculated value of the specific charge of copper and a decrease in the slope of the graph of It vs: Am a smaller slope of the…

Suppose you start charging a capacitor in an RC circuit at t = 0, with C = 10-4 F, R = 20 kÎ©, and the emf of the power supply is 30 V. Then the slope (in units of C/s) of the graph of Q vs. t at t = 2 s is: a. 0.00056 b. 0.0015 c. 0.0025 d. 0.3 e. 0.0017

'The maximum unknown emf that can be measured by a potentiometer circuit is 10 V. To increase the maximum unknown emf that can be measured we can: 0 a we cannot do this_ b use the same wire but increase the emf of the power supply: use a wire with a higher resistivity. d: use a shorter…

0.2mA, hz = 0.4mA, and Rp = Rz = R3 = 4000 Ohm. Then the potential in Kirchhoff's experiment, if we measure h = difference (in V) across Ra, is: R2 I3 J, R} @ 24 @: 16 4.3.2 0.8

In the Electric Field Mapping experiment, the emf of the power supply is 20 V and the slope of the calibration graph is 50 V/m. If the emf of the power supply is increased by 10 V, then the slope (in units of V/m) becomes: a. 28 b. 30 c. 60 d. 45 e. 75

In the Specific Charge of Copper experiment; the slope of the graph of It vs. Am is 3 x 106 clkg: ' If a current of 1.5 A passes in the circuit for I0 minutes then the increase in the mass (in grams) of the cathode is: 0 a. 1.2 b.2.4 0 C.2 d.0.005 e.0.3

The maximum unknown emf that can be measured by a potentiometer circuit is 10 V. What will lead to a lower value of the maximum unknown emf that can be measured: use a longer wire; use a shorter wire. we cannot do this use the same wire but decrease the emf of the power supply: use a wire with…

The induced emf in a conducting loop is proportional to: a. The rate of change of the magnetic flux cutting the loop: b. The magnitude of the magnetic flux cutting the loop: C. The resistance of the loop. d. The magnitude of the magnetic field cutting the loop. e. The rate of change of the…

'Time left 0.48.36 In the Magnetic Field experiment; the angle between the resultant field at the center of the coil and the Earths magnetic field is measured This angle will increases if: a. the current in the coil decreases. b. the current in the coil increases: the current is kept the same…

'Time leit 0.48.32 Suppose a power supply has an emf of 22 Volt and an internal resistance of 3 Ohm: The total maximum power (in Watt) that can be dissipated in a circuit consisting of the power supply in series with another resistance is: 0 a. 11 b. I00 c.161 d.81 8.40'

In Kirchoffs experiment; If we measure h = 0.3 mA; I2 = 0.4 mA, and Ry = Rz = Rz = 3000 Ohm then the potential difference (in V) across Ra is: a.1.5 b.12 c.0.1 d.21 e.9

'In the Specific Charge of Copper experiment; the slope of the graph of It vs. Am is 3 X 106 clkg: If a current of 2 A passes in the circuit for 12 minutes then the increase in the mass (in grams) of the cathode is: a: 0.48 b. 0.05 c.1.44 d. 0.008 e 2.4'

A two parallel metal plates TEM line (plate width 10 cm wide), separated in air by D = 0 cm, and extremely long. A voltage - v(t) = 10 cos(Ï‰t) V is applied to the plates at one end (2 = 0). What is the power being fed to the line? a) 0.27 W b) 2.65 W c) 37.7 W d) 13 W e) None

Find the velocity of transverse wave along a string of linear density 3.6 X 10 kg/m, when it is under a tension of 1.8 kg wt: (g = 9.8 mls?)

Time Left 045: The induced current in a conducting loop is proportional to: a. The resistance of the loop b. The rate of change of the magnetic flux through the loop c. The magnitude of the magnetic field cutting the loop d. The magnitude of the magnetic flux cutting the loop e. The rate of…

Nuclear Physics - Krane 2- Explain the 'transient and steady' equilibrium state.

A sonometer wire of length 35 cm is in unison with a fork. Calculate the frequency of the fork. Given T = 10 kg wt, mass per unit length = 10-3 kg/m, acceleration due to gravity = 9.8 m/s².

A particle confined in an infinite potential well (box) of sides at x = 0 and x = a is located in the left quarter of the box such that it is described by the wave function w(x) = VaTa for 0 < x < a/4 and w(x) = 0 elsewhere. Calculate the probability that a measurement of the energy yields…

'Two identical objects attract each other with an electric force of 6.0 N: What will he the force if the amount of charge On each object is doubled and the distance between them is reduced to one-fourth its initial value? 0384 N 2. 064 N 0128 N 0256 N 5. 0512 N'

"Using Wien's displacement law; calculate frequency for high energy density at temperature of 1000 K for Uv (radiated energy) and (frequency) curve Also write spectrum name"

62 A particle executes linear S.HM, of period 4 seconds and amplitude 4 cm. Find the time taken by it to describe 4 distance of 1 cm from positive extreme position.

An electron is traveling in a circle having radius 1.00 A with a moment of inertia 9.11 x 10^(-31) kgm. The energy (in joule) of the rotational wavefunctions with m = # is 6.1 x 10^(-19) B, 2.44 x 10^(-18) C, 9.1 x 10^(-31) D, 9 x 10^(-31) S.

'For !ly) tye-}*/2, the eigenvalue Of the operator A= 62 0.25 0.75 1,25'

The microwave spectrum of a diatomic molecule (reduced mass 6.6 x 10^-27 kg) consists of a series of equally spaced lines with Av = 12.8 cm. The internuclear distance is: 163 pm 138 pm 138 A 148 pm 152 pm 0 A 0 B 0 D 0 E

For any given x, the eigenvalue of the operator A = 6x^2.

The probability of finding particles moves in the left quarter of a one-dimensional box of length L at energy level n is given by: 15% 20% 25% 35% 50%

The position vector (t) = cos(t)i + sin(t)j function time object moving along circular path is given 2.1 Show that the object moves on a circular path of radius 1. 2.2 Is the object moving with constant velocity? Support your answer with calculation. 2.3 Show that the angle between the object's…

Determine the rate of heat transfer conducted through a 2 cm-thick hardwood board / = 0.22 W/m K; heat transfer area of 1.5 mÂ² with a temperature difference between the two sides of 15 Â°C.

02f 1.3 Give the function f(x,v,z) = 3x^2 + Zxyz + {y 10z. Find at the point (2,1,1). drdy 1.4 Find unit vector normal to the surface #(x,Y,z) = Zxz' _ xlyat the point (-3,4,51

'3.2 Given the vector field V =y(-1) + Zxj: 3.2.1 Make rough sketch of the vector field: 3.2.2 Determine the divergence of this field. 3.2.3 Is the field a source field or sink field? Give reason for your answer.'

3. Is the vector field V(c; 0,2) = ;e - Znd , rotational? Support your answer with calculation:

5_ A laser has a power 0f 22.0 W and a beam radius of 0.5 mm (a) Find the intensity of the laser: (b) Suppose you were floating in space and pointed the laser away from you. What would your acceleration be? Assume your total mass is 72.0 kg and the force is directed through your center of mass

'904 kg ship is floating in the ocean It is 5 m long, How many centimeters of the ship is below the water line? wide, and deep_'

Viscosity Question: Benzene at 20Â°C has a viscosity of 0.000651 Pas. What shear stress is required to deform this fluid at a strain rate of 4900 s^-1? (Answer: 3.19 Pa)

Calculate the heat needed to heat up a 6.0 kg copper from 15°C to 80°C. The specific heat capacity of copper is 3.9 x 10^2 J/kg°C.

A crate of mass 50kg is being dragged at a steady speed of 4 m/s up a slope inclined at an angle θ to the horizontal, where sin θ = 0.4. The total resistance is 250 N. Find the power.

Two protons, located on the z-axis and separated by distance d (i.e. z = dk), are subject to a z-oriented magnetic field B = Bk. (a) Ignoring all interactions between the two protons, find the energy levels and stationary states of this system; (b) Treating the dipole-dipole magnetic…

135_ In a strictly steady state situation, both the ions and electrons will follow the Boltzmann relation Ro â‚¬xp ' (-46/KT). For the case of an infinite, transparent grid charged to potential &, show that the shielding distance is then given approximately by 45"KT. Show that Ap is determined…

'3 : A 40 cm long spring becomes 47 cm when a load of 10 N hangs to free end. Determine the force constant of a spring:'

Two protons, located on the z-axis and separated by distance d (i.e. 7 = dk), are subject to a z-oriented magnetic field B = Bk. (a) Ignoring all interactions between the two protons, find the energy levels and stationary states of this system; (b) Treating the dipole-dipole magnetic…

'State Biot-Savart law and derive the expression for the magnetic field for long straight wire carrying current /, al perpendicular distance R from the wire.'

'Q. 44 Angular momentum of two bodies of momentum of inertia (I1) and (I2) are same (I1 > I2). If (E1) and (Ez) are rotational kinetic energies them : (a) E1 = Ez (b) E1 > Ez (c) Ez < Ez (d) E1 > Ez'

For the cubic zinc-blende structure, shown in the figure, determine the Bravais lattice type and write down the primitive translation vectors. What are the basis of the primitive unit cell? Calculate the packing fraction.

'b) Two semicircular arcs having radii Rz 7.80 cm and Ri 3.15 cm as shown in Fig below, carry current 0.28[ and have the same center 0f curvature C What are the magnitude and direction (into Or Out Of the page) Of the net magnetic field at C? 3+2'

Draw a conducting rectangular solid of dimensions d = 5 m, d2 = 3 m, and d3 = 2 m, which moves with a constant velocity v = (20 m/s)i through a uniform magnetic field, B = (30 mT)j. What are the resulting electric field within the solid, in unit-vector notation, and (ii) the potential…

Question 2 For the amplifier shown in figure 2, if Bz = 150VCC = 0 Find all DC parameters: Define dynamic range and amplifier power gain 03 ZNSOBS R9 K6; Kik R8 Figure 1

Please explain each process in detail as possible. Question: Consider the truss structure as shown below that has a hinge support at node A and a roller support at node B. How can you find the rotation of member 460?

'Synchrotron emission by electrons of V = 2 x 107 in a supernova remnant peaks in the ultraviolet at a wavelength of A = 100 nm: How strong must the local magnetic field be? Explain all steps in your answer'

'Two satellite of a planet have periods 32 days and 256 day. Find the ratio of their radii.'

'Q 2 What will be the maximum speed of a car on a road turn of radius 30 m, if the coefficient of friction between the tyres and the road is 0.4 ? (Take g = 9.8 m/s?) (a) 10.84 mls (b) 9.84 mls (c) 8.84 mls (d) 6.84 mls'

'bullet is shot straight up with an initial speed of 180 m/s. How long is the bullet in the air and how high does the bullet go?'

"The radius of the earth is 6400 km Calculate the velocity with which a body should be projected So as to escape the earth's gravitational influence:"

'What is the Kinetic Energy of a 1200 kg object that is moving with a speed 0f 24 mls?'

A0.2 kg ball is rest on edge of the top ofa 1 m height table: Does the ball have kinetic energy? Explain.

'A metal wire has a length of 30.0 m and a diameter of 0.750 mm. The entire length of wire has a resistance of 2.00 0. Find the resistivity (in 0 m) of the metal: Need Help? Rend ll'

'9 Determine the angular acceleration of a rotating body which slows down from 500 rp.m. to rest in 10 second:'

"1 4 : The mass and radius of the moon are 81 and times those of the 3.7 earth: The gravitational acceleration on the earth's surface is 9.8 m/s? Find the gravitational acceleration on the surface of the moon."

'Dry air is a pretty decent insulator; it has a very high resistivity of 3 X 1013 Q m Consider a capacitor that has square plates 15 cm on a side, separated by 0.8 mm of dry air: The capacitor charged such that it has a potential of 320 V between the plates First; what is the resistance of the…

2 - Calculate the electric flux passing through the surface as shown below: Î¦ = Î£Eâ‹…Î”A Î¦ = E1â‹…A1 + E2â‹…A2 + E3â‹…A3 + E4â‹…A4 + E5â‹…A5

Q 5 Two tuning forks A and B produce 8 beats when sounded together. When B is slightly loaded with wax, the beats are reduced to 4 per second. If the frequency of A is 512 Hz, the frequency of B is (a) 508 Hz (b) 516 Hz (c) 504 Hz (d) 520 Hz.

'A proton is moved from point A to point B along Path 1 as shown in the picture. Path The potential difference it moves through is 330 V_ Is point A o point B at a higher cm potential? 3 How much work is done, in eV? The proton is now moved from point B to point A, backwards along Path Now…

'36 A simple harmonic progressive wave of frequency 5 Hz is travelling along the positive k-direction with a velocity of 40 m/s. Calculate the phase difference between two points separated by a distance of 0.8 m.'

Two wires of the same material and having the same diameter have their lengths in the ratio 1 : 3 and are under tensions in the ratio 1 : 4, compare their fundamental frequencies.

'Q. 19 : If the pressure of an ideal gas decreases by 10%, isothermally, then its volume will (a) decrease by 9% (b) increase by 10% (c) increase by 11.6% (d) increase by 9%'

Consider the pipe assembly in the Figure below: The applied forces are defined as F1 = (100i - 120j + 75k) kN and F2 = (-200i + 250j + 100k) kN. 1. Determine the resultant force vector F in kN. 2. Determine the position vector rA in m. 3. Determine the moment of the forces M0 about point O in…

'Q. 13 At what temperature, the RM.S. speed of gas molecules is half the value at NTP ? (a) 68.25 K (b) 273 K (c) 345 K (d) 0 K'

'Q. 18 : The speed of molecules are given by 2 mls, 3 mls, 4 mls, 5 mls, and 6 m/s. The mean square speed is (a) 20 m?/s? (b) 25 m?/s2 36 m?/s2 (d) 18 m?/s2'

'The symbol for charge is Q True False Question 2 Polarization is the separation of charge in an object which remains neutral, True False'

The linear density of a wire of length 0.5 m is 2 x 10^-3 kg/m. If the tension in the wire is 20 N, calculate its fundamental frequency and the frequency of the first overtone.

'A wire of mass 0.5 gm and length 0.5 m is under a tension of 2 kg: wt: Calculate the frequencies of the fundamental and second overtone.'

'A wire of length 100 cm and having mass of 3 gram is subjected to a tension of 29.4 N. Calculate the fundamental frequency of vibration of the string:'

'glass plate of length 20 cm, breadth 10 cm and thickness 5 mm is held vertically with its length just touching the surface of water in the tank Find the force acting on the plate due to surface tension. (S.T. of water = 70 x 10-3 N/m) .'

The surface tension of water at 0Â°C is 75.5 dyn/cm. Calculate the surface tension of water at 25Â°C. (Î± for water = 2.7 x 10^-3/Â°C)

Q3// A raindrop with radius of 6mm is evaporated in air at 25 Â°C and at where the diffusivity coefficient of water vapor in air at these conditions is 0.26 cm/s. Find: The evaporation rate of drop in air and mass transfer coefficients; 2- The evaporation rate of drop if the temperature rises…

'68 The length of simple pendulum SI increased by 44%. Determine the % increase in time period'

'54 Determine the pressure required to reduced the given volume of water by 1% (Bulk modulus or water = 2 x 108 N / m2)'

'A simple pendulum of length 1 m has a mass of 10 g and oscillates freely with an amplitude of 2 cm. Find its potential energy at the extreme position. [g = 9.8 m/s?]'

A large conducting cone (θ = 35°) is placed on a conducting plane with a tiny gap separating it from the plane, as shown below. If the cone is connected to a Vo = 40 V source, find V at (r = 5, θ = 55°, φ = 45°). a: 22.62 V b: 79.18 V c: 33.94 V d: 11.31 V e: 16.97 V f: 6113.12 V

'The length of simple pendulum IS increased by 449. Determine the % increase in time Period.'

'10 Q2 resistor; 10 pF capacitor and 10 mH inductor are connected in series with voltage source with an angular frequency; W_ of 1000 radians per second connected across them_ Which of the following facts is INCORRECT: The magnitude of the effective impedance of the circuit, Zeff; in polar form…

'tic field at the point 0,the common z (out of page)'

'What pressure is required to reduce the volume of a lead block by 1% ? (Given : Bulk modulus of lead = 6 x 109 S.U. units)'

The unit of the attenuation constant is: Select one: a. Alm b. A/sec c. Vlsec d. Nplm e. rad/sec f. rad/m g. Np/sec h. VIm

The stored electric energy in a spherical capacitor whose inner radius a = 6 cm, outer radius b = 10 cm filled with a dielectric material of Îµ = 3.7 is assumed. V(r-a) = 29 V and V(r=b) = 0 V. Options for the stored electric energy are: a. 77.79 nJ b. 25.93 nJ c. 129.65 nJ d. 20.74 nJ e. 10.37…

A large conducting cone (Î¸ = 0-35Â°) is placed on a conducting plane with a tiny gap separating it from the plane, as shown below. If the cone is connected to a Vo = 40 V source, find V at (r = 5, Î¸ = 55Â°, Ï† = 459Â°). a. 22.62 V b. 79.18 V c. 33.94 V d. 11.31 V e. 16.97 V f. 113.12 V

"A circular race course track has a radius of 500 m and is banked to 10'. If the coefficient of friction between tyres of vehicle and the road surface is 0.25. compute : (a) The maximum speed to avoid slipping (b) The optimum speed to avoid wear and tear of tyres. (g = 9.8 mls?)."

'motor van weighing 4400 kg rounds a level curve of radius 200 m on unbanked road at 60 km/hr What should be minimum value of coefficient of friction to prevent skidding At what angle the rod should be banked for this velocity ?'

'A cylindrical solenoid with radius 1.00 cm and length 10.0 cm consists of 300 windings of AWG 20 copper wire, which has a resistance R of 0.6277 Q and inductance 355.3 pH This solenoid is connected in series with 10.0 HF capacitor; which is initially uncharged. magnetic field directed along…

5. The player with the ball in a basketball game has to beat the remaining seconds to win over the opponent who has a two-point lead. To achieve this, the player has to shoot the ball at a height of 2 m from the opponent's court while standing 25 m away from the hoop and throwing at an angle of…

Distance of a planet from the earth is 2.5 X 107 m. If mass of planet is same as that of the earth, calculate the force of gravitation between then (mass of earth = 5.98 x 1024 kg, G = 6.67 x 10-11 Nm2 / kg2)

'Assuming the earth to be sphere of uniform mass density, how much would a body weight half way down to the centre of the earth, if it weighted 100 N on the surface:'

'Q7. Assume a sinusoidal input voltage with peak value Va into the circuit below. Determine the shape and amplitude of the output voltage over Rz: AC source DI Sketch output waveform and show voltage levels'

[Numbers change] A proton is flying through space with an initial velocity Vo = 1.9 x 10^6 m/s, as shown below: It interacts with a fixed negative charge q = -7 nC along the path shown. What is its speed in m/s when it reaches the point P, given that x = 1.3 cm and y = 5.6 cm? Give your answer…

'How much energy in joules does the laptop battery hold when fully charged? Give your answer significant digits 540 Question 8 [Numbers change] If this amount of energy were used to lift a person with mass 92 kg off the ground, how far up would it lift them (in meters to 0.1 m precision)?'

'What is the capacitance of this capacitor (in pF to 3 significant digits)?'

'Dry air is a pretty decent insulator; it has a very high resistivity of 3 X 1013 Q m Consider a capacitor that has square plates 15 cm on a side; separated by 0.8 mm of dry air: The capacitor is charged such that it has a potential of 320 V between the plates'

"There's a good chance you're completing this HW on a laptop. A typical laptop uses about 15 W of power provided by a battery operating at 11.5 V. Under such conditions, 10 hrs is a typical lifetime of the battery:"

'What is the capacitance of this capacitor (in pF to 3 significant digits)?'

A lifeguard standing on the beach 15 meters from the water when she spots a nonswimmer 15 meters from shore in need of rescuing. Unfortunately, she is 100 meters down the beach from the swimmer and all of her reach throw row equipment is being used. She decides to run across the beach and make…

'Dry air is a pretty decent insulator; it has a very high resistivity of 3 X 1013 Q m Consider a capacitor that has square plates 15 cm on a side; separated by 0.8 mm of dry air: The capacitor is charged such that it has a potential of 320 V between the plates'

'79 At What depth below the surface of the earth, value of (g) is same as that at a height of 32 km above the surface of the earth:'

'A resistor is wired to a battery in a circuit and dissipates a power P1 as heat: A second resistor; with the same resistance; is added in series with the first resistor; leading the circuit (i.e. both resistors) to dissipate a power Pz as heat: How much does the circuit dissipate with two…

A resistor is wired to a battery in a circuit and dissipates a power P1 as heat. A second resistor, with the same resistance, is added in series with the first resistor, leading the circuit (i.e. both resistors) to dissipate a power P2 as heat. How much does the circuit dissipate with two…

A particle of mass m 1.0 mg and charge 2.0 ÂµC is placed in a region of space that has a constant electric field of magnitude 2000 N/C. What is the magnitude of the acceleration of the particle? 1 m/sÂ² 40 sÂ² 9.8 m/sÂ² 2000 m/sÂ² 4000 m/sÂ² 4 x 10â¶ m/sÂ²

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