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Physics 101 Mechanics
April 2023
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Physics 101 Mechanics Q&A Archive of April 30, 2023

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April 30 of 2023

You have 3 cylinders in series. The first cylinder has a piston diameter of 3 inches, with a rod end of 1 inch, and a stroke of 9 inches. The second cylinder has a piston diameter of 1 inch and a rod diameter of .5 inch, and a stroke of 8 inches. The last cylinder has piston diameter of 1.25…

You have a column of water in a glass tube being drawn up by a vacuum to a height of 15 inches. The glass tube inside diameter is 0.8125 inches. What is the vacuum pressure you are drawing in psia?

Rotation about a fixed axis

A long, thin-walled double-pipe heat exchanger with tube and shell diameters of \( 1.0 \mathrm{~cm} \) and \( 2.5 \mathrm{~cm} \), respectively, is used to condense refrigerant-134a with water at \( 20^{\circ} \mathrm{C} \). The refrigerant flows through the tube, with a convection heat…

You have a column of water in a glass tube being drawn up by a vacuum to a height of 15 inches. The glass tube inside diameter is 0.8125 inches. What is the vacuum pressure you are drawing in psia?

A 5.00 cm tall object is placed 3.50 cm from a lens and produces an image that is 4.25 cm behind the lens. What is the magnification of the lens?

What is the focal length of a lens if an object placed 3.28 cm from the lens produces an image that is 1.91 cm in front of the lens

In relation to the barometric distribution: p=p_0e^{-\frac{Mgz}{RT}} where p is the atmospheric pressure at altitude z, p0 is the atmospheric pressure at sea level, M= 28.84 g/mol is the average molar mass of air, R is the universal gas constant, and T is temperature. Explain the variation of…

What is the index of refraction of a substance if the critical angle for a ray going into Polystyrene (n=1.57) is 52.7

What is the angle of refraction if a ray that makes an angle of 25.0o with the normal in Air (n=1.00) travels to Flint Glass (n=1.65)

What is the index of refraction for a medium where light has a velocity of 2.75 x108 m/s

In relation to the barometric distribution: p=p_0e^{-\frac{Mgz}{RT}} where p is the atmospheric pressure at altitude z, p_0 is the atmospheric pressure at sea level, M= 28.84 g/mol is the average molar mass of air, R is the universal gas constant, and T is temperature. Obtain the equation of…

A person standing on the edge of 50m a cliff throws a stone horizontally with a speed of (a) What is the initial position of the stone? (b) What are the components of the initial velocity? (c) What are thex and y-components of the velocity of the stone at any arbitrary time (d) How long will…

What is the unit of pressure? A. kgN/m B. Nm C. N/m D. m/N

As shown in the below figure represents the total acceleration of a particle moving clockwise in a circle of radius 2.50 m at a certain instant of time. At this instant, find (a) the radial acceleration, (b) the speed of the particle, and (c) its tangential…

A 5.00 cm tall object is placed 7.50 cm from a convex mirror with a focal length of 4.00 cm. What is the distance of the image from the mirror

a horizontal plank of negligible mass (ignore mass of board) and length L is supported by two supports at its ends. As mass of m1=5 kg is placed at the center of the plank and a mass of m2=10kg is placed on the right end of the plank. what is the magnitude of the upward force exerted on the…

What is the frequency of a photon of EMR with a wavelength of 4.36x104m?

How far apart must the slits be to produce a 2nd order dark fringe at an angle of 1.83o when struck by light with a wavelength of 6.70x10-7m?

How far apart are the slits to produce a 2nd order bright fringe at an angle of 5.23o if the light source has a wavelength of 5.82x10-7m?

Calculate the net torque acting on the massless rod if ? = 30° and ? = 60°. Use the black dot as the axis of rotation. -10 Nm -2 Nm 0 2 Nm 10 Nm

A 5.00 cm tall object is placed 4.25 cm from a lens and produces an image that is 3.00 cm behind the lens. What is the height of the image formed?

Calculate the net torque acting on the massless rod if theta=30° and 0=60°. Use the black dot as the axis of rotation. a. -10 Nm b. -2 Nm c. 0 d. 2 Nm e. 10 Nm

What is the index of refraction of a substance if the critical angle for a ray going into Water (n=1.33) is 69.3o

What is the angle of refraction if a ray that makes an angle of 35.0o with the normal in water (n=1.33) travels to Quarts (n=1.46)

What is the index of refraction for a medium where light has a velocity of 1.75 x108 m/s?

What is the height of an image produced by a curved mirror if a 10.0 cm tall object is placed 8.00 cm from the mirror and produces an image 4.00 cm in front of the mirror

A 5.00 cm tall object is placed in front of a concave mirror with a focal length of 3.00 cm. An image is produced 4.50 cm behind the mirror. How far is the object from the mirror?

You have a dual acting cylinder with a rod diameter of 0.500 inches and a cylinder diameter of 3 inches. Calculate the rod force in pounds if you have a supply air pressure of 120 psig.

In order to apply a positive torque, the wheel below would need to spin in which direction? a. clockwise b. counter- clockwise

A 5.00 cm tall object is placed in front of a concave mirror with a focal length of 3.00 cm. An image is produced 4.50 cm behind the mirror. How far is the object from the mirror?

A skater is rotating with her arms held out. When the skater brings her arms in close to her body, what happens to the speed of rotation? a. Increase b. decrease c. stops d. remains constant

What is the frequency of a photon transmitting 5.36x10-15J of energy

What is the energy of a photon with a frequency of 9.48x1013 Hz

What is the wavelength of a photon of EMR with a frequency of 2.50x107Hz

a wire of lenght 500cm and diameter 200mm extend by 25cm when a force of 50N was used to stretch it from it's end calculate the stress on the wire and srain on the wire(π3•142)

What is the magnitude of the momentum of a 2.0 kg tennis ball traveling at 15 m/s?

A mass of 30 kg is supported on a spring of stiffness 60 000 N/m. The system is damped and the damping ratio is 0.4. The mass is raised 5 mm and then released. Calculate the following. i. The damped frequency. (6.523 Hz) ii. The displacement, velocity and acceleration after 0.1 s. Could I…

Hello, could I get the full working out for the velocity and the acceleration. Each step? Thank you

A - Use/design a differentially steered mobile robot (unicycle model) and test the model for different tasks. Simulate your tasks using the Simulink® model diagram environment and analyze how efficiently your tasks are accomplished. 1 – Implement a lane-changing maneuver. The pulse…

What is the Doppler Frequency of a 315 Hz sound if the source is away from the stationary observer at 35.0 m/s? (Use 345 m/s for the speed of sound)

What is the relative intensity of a sound wave with an intensity of 0.00458 W/m2?

What is the speed of sound at -20.0oC?

The diagram shows a uniform door hanging from two hinges 2.5 m apart. The moment of the couple that the hinges exert on the door is A 150 N m B 200 N m C 250 N m D 500 N m

A wave travels at 9.06 m/s with a frequency of 22.8 Hz. What is its wavelength?

A 2-kg bob is hung vertically from a 4-m long string and is displaced by an angle of 40 degrees. The bob is released from rest and allowed to swing freely. At the bottom of its swing, a small peg (the small black square that is a variable height h above the bottom of the swing) interrupts…

A wave is measured and found to have a distance of 4.31 m between adjacent troughs and an amplitude of 0.540 m. What is the speed of the wave if the measured frequency is 12.4 Hz?

A 2-kg bob is hung vertically from a 4-m long string and is displaced by an angle of 40 degrees. The bob is released from rest and allowed to swing freely. At the bottom of its swing, a small peg (the small black square that is a variable height h above the bottom of the swing) interrupts…

A 5.00 kg pendulum bob is placed on a 6.00 m long string and pulled back 10.0o. What is the period of the pendulum when it is released?

A spring has a constant of 3.80 N/m. A mass of 0.500 kg is attached to it and it is set into oscillation. What is the period of the oscillation?

A particle undergoing simple harmonic motion vibrates 0.0526 m from equilibrium. What is the force on the particle if the constant for the medium is 0.473 N/m

Bob watches an ocean wave and counts 11.0 waves that pass every 60.0 s. What is the frequency of the ocean waves?

A raindrop of mass m falls to the ground at its terminal speed v. The specific heat capacity of water is c and the acceleration of free fall is g. Given that 25% of the energy is retained in the raindrop when it strikes the ground, what is the rise in temperature of the raindrop?

If a wave takes 9.50s to complete 6.00 complete oscillations, what is the period of the wave?

Q4: A steel rod of length \( 5 \mathrm{~m} \) is fixed rigidly between two supports. The coefficient of linear expansion of steel \( =12 \times 10^{6} /{ }^{\circ} \mathrm{C} \). Calculate the stress in the rod for an increase in temperature of \( 40^{\circ} \mathrm{C} \). The Young's modulus…

A magnet with a mass of 80 grams "sticks" to a vertical steel plate with a force of 10 newtons. The coefficient of friction between the magnet and the plate is 0.3. What magnitude of vertically directed force must be exerted on the magnet to cause it to slide down?

Q3: Find the work done in stretching a wire of \( 1 \mathrm{sq} \mathrm{mm} \) cross section and \( 2 \mathrm{~m} \) long through \( 0.1 \mathrm{~mm} .\left(Y=2 \times 10^{11} \mathrm{~N} / \mathrm{m}^{2}\right) \).

A hydraulic press contains \( 0.25 \mathrm{~m}^{3}(250 \) L) of oil. Find the decrease in the volume of the oil when it is subjected to a pressure increase \( \Delta p=1.6 \times 10^{7} \mathrm{~Pa} \) (about \( 160 \mathrm{~atm} \) or 2300 psi). The bulk modulus of the oil is \( B=5.0 \times…

The rectangular objects, A, B, C and D are each 2 cm long and 1 cm high. Which one of the bodies is in equilibrium?

Find electric field on axis of dipole, use figure below

Q19. Given that \( u=\frac{5 x y^{2}}{z^{3}} \). Find the relative error at \( x=y=z=1 \) when the errors in each of \( x, y, z \) is 0.001 . OR If \( u=\frac{5 x y^{2}}{z^{3}} \) find the relative error at \( x=y \) \( =z=1 \) when the errors in each of \( x, y, z \) is \( \mathbf{0 . 0 0 1}…

What is the Doppler Frequency of a 211 Hz sound if the source is away from the stationary observer at 45.0 m/s? (Use 345 m/s for the speed of sound)

What is the relative intensity of a sound wave with an intensity of 0.0584 W/m2?

What is the speed of sound at -10.0oC?

The standing wave above is set up on a string that has a total length of 5.00 m. what is the wavelength of the wave

What is the frequency of a wave that has a wavelength of 4.72 m and travels at 50.0 m/s

What is the speed of a wave that has a wavelength of 0.285 m, an amplitude of 0.500 m, and frequency of 2.00 Hz

two uniform solid masses M (radius R ) and m (radius r) are released from rest when their center to center separation is L. The only force on them is their mutuel gravitational attraction a. When they collide M has a speed V and m has a speed v. What is the relationship between V and v b.…

A 5.00 kg pendulum bob is placed on a 6.00 m long string and pulled back 10.0o. What is the period of the pendulum when it is released?

What would be the period of an oscillating spring that has a mass of 1.92 kg attached to it if the spring constant has a value of 0.800 N/m?

What is the frequency of a particle that vibrates with a period of 0.0356 s

If a wave takes 3.50s to complete 8.00 complete oscillations, what is the period of the wave

>. 1 dyng \( d j m \partial_{0} \) 3. 3 dyyndj \( \left.\rho_{6}=80033 / \partial^{3}, \rho_{0 \infty}=71033 / \partial^{3}\right) \) ? .. 1,13-32gm ?. 11,3-?j? 3. 113-?z?n œ. 0,13 -??? ?. 1 33s-nen 3. 3 3 \( 30-n \infty \) ?. 6330 ?. 0,633 3. 4330 ?. 0,4 ?3?

What is the relative intensity of a sound wave with an intensity of 0.000845 W/m2?

A public address system puts out 5.92 W of power. What will be the intensity at a distance that results in a surface area of 9.47 m2?

What is the speed of sound at -10.0oC?

What is the wavelength of a wave with a velocity of 5.28 m/s and a frequency of 7.39 Hz

What is the speed of a wave that has a wavelength of 0.285 m, an amplitude of 0.500 m, and frequency of 2.00 Hz?

A string that is 0.250 m long has a bob with a mass of 12.3 kg placed on it. It is allowed to swing so that it's amplitude is 0.100 m. What is the period of oscillation?

A spring has a constant of 3.80 N/m. A mass of 0.500 kg is attached to it and it is set into oscillation. What is the period of the oscillation?

What is the force on a spring with a spring constant of 3.44N/m if it is pulled back 0.738m?

What is the frequency of a wave with a period of 13.8 s?

A man taps his shoe 5.00 times every 3.75 s. what is the frequency of the vibration?

If a wave takes 9.50s to complete 6.00 complete oscillations, what is the period of the wave?

(a) How much more intense is a sound that has a level 11.0 dB higher than the other? (b) If one sound has a level 29.0 dB less than another, what is the ratio of their intensities?

If a woman needs an amplification of 8.5 ✕ 104 times the threshold intensity to enable her to hear at all frequencies, what is her overall hearing loss in dB? Note that smaller amplification is appropriate for more intense sounds to avoid further damage to her hearing from levels above 90 dB. …

(a) What frequency (in Hz) is received by a person watching an oncoming ambulance moving at 104 km/h and emitting a steady 600 Hz sound from its siren? The speed of sound on this day is 345 m/s. Hz (b) What frequency (in Hz) does she receive after the ambulance has passed? Hz

Find the sound intensity level in decibels of 5.50 ✕ 10−2 W/m2 ultrasound used in medical diagnostics. dB

A commuter train blows its 200 Hz horn as it approaches a crossing. The speed of sound is 332 m/s. (a) An observer waiting at the crossing receives a frequency of 207 Hz. What is the speed of the train (in m/s)?

What is the period of a wave with a frequency of 214 Hz.

What is the Doppler Frequency of a 315 Hz sound if the source is headed toward the stationary observer at 35.0 m/s? (Use 345 m/s for the speed of sound)

What is the relative intensity of a sound wave with an intensity of 0.376 W/m2

What is the speed of sound at 30.0oC

What is the frequency of a wave that has a wavelength of 0.894 m and travels at 1.76 m/s

A wave is measured and found to have a distance of 3.14 m between adjacent troughs and an amplitude of 1.54 m. What is the speed of the wave if the measured frequency is 2.41 Hz?

A string that is 0.250 m long has a bob with a mass of 12.3 kg placed on it. It is allowed to swing so that it's amplitude is 0.100 m. What is the period of oscillation?

What would be the period of an oscillating spring that has a mass of 1.92 kg attached to it if the spring constant has a value of 0.800 N/m?

A particle undergoing simple harmonic motion vibrates 0.0526 m from equilibrium. What is the force on the particle if the constant for the medium is 0.473 N/m

What is the period of a wave with a frequency of 214 Hz.

Bob watches an ocean wave and counts 11.0 waves that pass every 60.0 s. What is the frequency of the ocean waves?

What is the period of oscillation for a pendulum that completes 3.00 cycles every 2.00 s?

Please see the image for question.

\( -5 \). A Physics teacher asked her students to find the average mass of a coin, given 8 similar coins and a beam balance. The procedure they used was to measure the mass, in grams, of one coin, then add each coin and find the new total mass. (a) State TWO likely sources of error and ONE…

What is the speed of sound at 10.0oC?

if the relative intensity of a sound increased from 2dB to 4dB it would become

What is the frequency of a wave that has a wavelength of 4.72 m and travels at 50.0 m/s

Question 1Given that ( F_{1}=259 mathrm{~N} ) and ( F_{2}=400 mathrm{~N} ), whereas ( theta=39^{circ} ) and ( psi=71^{circ} ), then the Cartesian representation of the the resultant force acting on theNot yet answered eyebolt is:( {(-161.02) i+(260.62) j+(533.61) k} N )( {(-161.02) i+(-0.17)…

A wave is measured and found to have a distance of 3.14 m between adjacent troughs and an amplitude of 1.54 m. What is the speed of the wave if the measured frequency is 2.41 Hz?

A ball of mass starts at rest and slides down a frictionless track, as shown in the fig. below. It leaves the track horizontally at height H/2. Find an expression for the horizontal distance x the ball moves after leaving the track and before it strikes the ground.

A wave were particles vibrate parallel to the transfer of energy are called

What is the period of a 2.25 kg mass that is placed on a spring with a constant of 10.0 N/m when is pulled and released to oscillate?

What is the spring constant for a spring if pulling it back 0.391 m causes a force in the opposite direction of 0.922 N?

If the period of a pendulum is 3.00 s, what is the frequency

What is the period for a particle that vibrates 4.0 times ever 1.5

In the circuit shown in the figure below, find (a) the current in resistor \( R \); (b) the resistance \( R \); and (c) the unknown emf \( \varepsilon \).

How gravitational force cause artificial satellite to orbit earth??

Fin.st ter dirsingisen, \( x \)

Wabity \( =\sqrt{\frac{P_{\text {armas }}}{x}} \) Find the dimingigin of \( x \)

vector V1 points along the z axis and has magnitude V1 = 71. vector V2 lies in the xz plane, has magnitude V2 = 59, and makes a -44 ° angle with the x axis ( points below x axis ). what is the scalar product V1 x V2?

Type question here (Keep it short & clear to get the best answer)

what magnitude force is required to give a helicopter of mass M an acceleration of 0.10 g upward?

Identify zero force members and determine forces in the members of the truss as shown in fig

II. The circuit below contains two resistors \( R_{1}=2.0 \mathrm{k} \Omega \) and \( R_{2}=3.0 \mathrm{k} \Omega \), and two capacitors, \( C_{1}=2.0 \mu \mathrm{F} \) and \( C_{2}=3.0 \mu \mathrm{F} \), connected to a battery with emf \( \varepsilon=120 \mathrm{~V} \). If there are no charges…

I. Find, (a) the potential difference between points \( a \) and \( b \), and (b) each current passing through each resistor, by Kirchhoff's Laws. Write the KCL, and the KVL equations. Show your solution. The circuit is shown below.

An impulse turbine is to be used to develop the energy at a site wnere water discharge \( \mathrm{q}=20 \mathrm{ft}^{3} / \mathrm{sec} \) and the effective head is 980ft. Using theoretical and empirical equations presented in this chapter, finding the following: (a) Required jet diameter for a…

1. Xét 1 h?t có hàm sóng ban ??u \( t=0 \) có d?ng \[ \Psi(x, 0)=A\left(a^{2}-x^{2}\right) \] trong kho?ng \( -a \leq x \leq a \) và b?ng 0 t?i m?i ?i?m khác. a) Tìm \( A \) ? b) \( \operatorname{Tim} \Psi(x, t) \) và \( |\Psi(x, t)|^{2} \) ? c) Tính \( \langle x\rangle,\langle…

What will be the value of acceleration due to gravity on the surface of the earth if the radius of the earth suddenly decreases to 60% of its present value, keeping the mass of the earth unchanged?

A machine has an equivalent mass of 90 kg and a stiffness of 0.5 MN/m. An undamped dynamic absorber of mass 34 kg and a stiffness is attached to the system. It is found that the system has zero amplitude at 500 rpm under an excitation harmonic force of 300 N . Calculate the new lower frequency…

A 4-pole dc shunt generator is delivering 20 A to a load of 10 Ω. The armature and filed resistances of the generator are 0.5 Ω and 50 respectively. The voltage drop per brush is 1 volt. Calculate the followings: (a) Induced emf in the armature. (b) Total copper losses of the machine. (c)…

III. A total current of \( 20 \mathrm{~A} \) divides among three resistors. If the largest is \( R_{1}=1 \mathrm{k} \Omega \), find \( R_{2} \) and \( R_{3} \) so that \( 12 \mathrm{~A} \) flows through \( R_{3} \) and \( R_{2}=2 R_{3} \). Find the equivalent resistance (round off to the…

If the velocity of photoelectron emitted in a Compton process is 0.5c, calculate the difference in wavelength of incident and the scattered photon.

5. A bullet of mass \( m \) is fired into a ballistic pendulum and embeds itself in the wooden bob of mass \( M \) (see the figure). After the collision, the pendulum reaches a maximum height \( h \) above its original position. (a). Show that the kinetic energy of the system decreases by the…

23. Four point charges are placed at each corner of a square with side length ( a ). The charges all have the same magnitude ( q ). Two of the charges are positive and two are negative, as shown in the diagram. (a) What is the direction of the net electric field at the center of the square due…

3) A wave is represented by the equation \( y=7 \sin \left(7 \pi-0.04 x+\frac{\pi}{3}\right) \), where \( \mathrm{x} \) is in meters and \( t \) is in seconds. The speed of the wave is a. \( 175 \mathrm{~mm} / \mathrm{s} \) b. \( 49 \pi \mathrm{n} / \mathrm{s} \) c. \( \frac{49}{\pi} m / s…

A 63.2-kg climber finds herself dangling over the edge of a cliff. Fortunately, she’s connected by a rope of negligible mass to a rock located 48.6 m from the edge of the cliff, and help is on the way. Unfortunately, it will be 34.5 s before help arrives, and the ice is frictionless. How…

What is the Doppler Frequency of a 315 Hz sound if the source is headed toward the stationary observer at 35.0 m/s? (Use 345 m/s for the speed of sound)

What is the intensity of a sound wave with a relative intensity of 25.3 dB

What is the relative intensity of a sound wave with an intensity of 0.0584 W/m2?

A power source of of 5.18 W produces an intensity of 3.07 W/m2. What must be the surface area that is vibrated?

What is the intensity of a sound wave if the power output of the source is 1.58 W and the surface area is 3.56 m2

What is the speed of sound at -10.0oC?

The relative intensity of the threshold of hearing, 10-12 W/m2, is

What is the frequency of a wave that has a wavelength of 4.72 m and travels at 50.0 m/s

A wave is measured and found to have a distance of 4.31 m between adjacent troughs and an amplitude of 0.540 m. What is the speed of the wave if the measured frequency is 12.4 Hz?

If a pendulum oscillates with a period of 0.700 s, what is the length of the pendulum

A 6.00 kg pendulum bob is placed on a 10.0 m long string and pulled back 5.00o. What is the period of the pendulum when it is released?

A spring has a constant of 3.80 N/m. A mass of 0.500 kg is attached to it and it is set into oscillation. What is the period of the oscillation?

A hard drive is turned on from rest and accelerates to 5200 rpm in 5.24 s . The drive then maintains this rate of rotation for 196 s at which point it is turned off and slows to a stop. the angular acceleration of the drive when it is first turned on -> 104 rad/s^2 If the hard drive has…

A particle undergoing simple harmonic motion vibrates 0.0526 m from equilibrium. What is the force on the particle if the constant for the medium is 0.473 N/m

What is the period of a wave with a frequency of 214 Hz.

Bob watches an ocean wave and counts 11.0 waves that pass every 60.0 s. What is the frequency of the ocean waves?

If a wave takes 9.50s to complete 6.00 complete oscillations, what is the period of the wave?

COnsider a different scenario in which cars stick together after the collision. The masses of the heavier and lighter carst are m1 and m2. Derive an expression for the fraction of of kinetic energy lost during the collision (K lost / K initial). Express your answer in terms of m1 and m2.

You have a column of water in a glass tube being drawn up by a vacuum to a height of 15 inches. The glass tube inside diameter is 0.8125 inches. What is the vacuum pressure you are drawing in psia?

You have a dual acting cylinder with a rod diameter of 0.500 inches and a cylinder diameter of 3 inches. Calculate the rod force in pounds if you have a supply air pressure of 120 psig. Would this cylinder make a reasonably good pressure multiplier? Show your work.

You have a dual acting cylinder with a rod diameter of 1 inch and a cylinder diameter of 4 inches. What pressure is required to produce 1000 lbs of force on the rod end of the cylinder? Show your work.

A 2400- \( \mathrm{kg} \) airplane pulls two gliders, the first of mass \( 350 \mathrm{~kg} \) and the second of mass \( 270 \mathrm{~kg} \), down the runway with an acceleration of \( 1.5 \mathrm{~m} / \mathrm{s}^{2} \) (Figure 1). Neglect the mass of the two ropes and any frictional…

You have 3 cylinders. Two are spring return single acting cylinders. They both have 2 inch diameter pistons, and a stroke length of 1 foot, they are teed off from the first cylinder which has a piston diameter of 3 inches, and a rod diameter of ½ inch. What stroke length is required on the 3…

You have a cylinder with a piston diameter of 8 inches, and a rod diameter of 1 inch. Assuming a 200 psi inlet pressure on the blind end of the cylinder, what is the resulting force at the rod end? Show your work.

You have 3 cylinders in series. The first cylinder has a piston diameter of 3 inches, with a rod end of 1 inch, and a stroke of 9 inches. The second cylinder has a piston diameter of 1 inch and a rod diameter of .5 inch, and a stroke of 8 inches. The last cylinder has piston diameter of 1.25…

You desire to have a pressure of 270 psi generated from double acting cylinder used as an intensifier that is powered by 120 psi and with a piston diameter of 6 inches. What size annular area would be required to produce 270 psi out on a double cylinder? Show your work.

You want a dual acting cylinder to fully extend in .5 seconds. The cylinder diameter is 2 inch and the rod diameter is 0.500 inch. At 120 psig you observe the cylinder fully extended at 2 seconds. What must you do to achieve the .5 second extension time of the rod end? Show your work.

b. The terminal velocity of a sphere (maximum drop velocity) depends on the sphers diameter, sphere density, fluid density, fluid viscosity, and acceleration due to gravity. \( \mathrm{Vt} \) \( =f(D, \rho s, \rho f, \mu, g) \) Find a nondimensional form for the terminal velocity.

You have a column of water in a glass tube being drawn up by a vacuum to a height of 15 inches. The glass tube inside diameter is 0.8125 inches. What is the vacuum pressure you are drawing in psia?

A 5.00 cm tall object is placed 3.50 cm from a lens and produces an image that is 4.25 cm behind the lens. What is the magnification of the lens?

What is the focal length of a lens if an object placed 3.28 cm from the lens produces an image that is 1.91 cm in front of the lens

What is the index of refraction of a substance if the critical angle for a ray going into Polystyrene (n=1.57) is 52.7

What is the angle of refraction if a ray that makes an angle of 25.0o with the normal in Air (n=1.00) travels to Flint Glass (n=1.65)

What is the index of refraction for a medium where light has a velocity of 2.75 x108 m/s

What is the unit of pressure? A. kgN/m B. Nm C. N/m D. m/N

A 5.00 cm tall object is placed 7.50 cm from a convex mirror with a focal length of 4.00 cm. What is the distance of the image from the mirror

a horizontal plank of negligible mass (ignore mass of board) and length L is supported by two supports at its ends. As mass of m1=5 kg is placed at the center of the plank and a mass of m2=10kg is placed on the right end of the plank. what is the magnitude of the upward force exerted on the…

What is the frequency of a photon of EMR with a wavelength of 4.36x104m?

How far apart must the slits be to produce a 2nd order dark fringe at an angle of 1.83o when struck by light with a wavelength of 6.70x10-7m?

Calculate the net torque acting on the massless rod if ? = 30° and ? = 60°. Use the black dot as the axis of rotation. -10 Nm -2 Nm 0 2 Nm 10 Nm

A 5.00 cm tall object is placed 4.25 cm from a lens and produces an image that is 3.00 cm behind the lens. What is the height of the image formed?

Calculate the net torque acting on the massless rod if theta=30° and 0=60°. Use the black dot as the axis of rotation. a. -10 Nm b. -2 Nm c. 0 d. 2 Nm e. 10 Nm

What is the index of refraction of a substance if the critical angle for a ray going into Water (n=1.33) is 69.3o

What is the angle of refraction if a ray that makes an angle of 35.0o with the normal in water (n=1.33) travels to Quarts (n=1.46)

What is the index of refraction for a medium where light has a velocity of 1.75 x108 m/s?

What is the height of an image produced by a curved mirror if a 10.0 cm tall object is placed 8.00 cm from the mirror and produces an image 4.00 cm in front of the mirror

A 5.00 cm tall object is placed in front of a concave mirror with a focal length of 3.00 cm. An image is produced 4.50 cm behind the mirror. How far is the object from the mirror?

In order to apply a positive torque, the wheel below would need to spin in which direction? a. clockwise b. counter- clockwise

A 5.00 cm tall object is placed in front of a concave mirror with a focal length of 3.00 cm. An image is produced 4.50 cm behind the mirror. How far is the object from the mirror?

A skater is rotating with her arms held out. When the skater brings her arms in close to her body, what happens to the speed of rotation? a. Increase b. decrease c. stops d. remains constant

What is the frequency of a photon transmitting 5.36x10-15J of energy

What is the energy of a photon with a frequency of 9.48x1013 Hz

What is the wavelength of a photon of EMR with a frequency of 2.50x107Hz

What is the magnitude of the momentum of a 2.0 kg tennis ball traveling at 15 m/s?

What is the Doppler Frequency of a 315 Hz sound if the source is away from the stationary observer at 35.0 m/s? (Use 345 m/s for the speed of sound)

What is the relative intensity of a sound wave with an intensity of 0.00458 W/m2?

What is the speed of sound at -20.0oC?

A wave travels at 9.06 m/s with a frequency of 22.8 Hz. What is its wavelength?

A 2-kg bob is hung vertically from a 4-m long string and is displaced by an angle of 40 degrees. The bob is released from rest and allowed to swing freely. At the bottom of its swing, a small peg (the small black square that is a variable height h above the bottom of the swing) interrupts…

A wave is measured and found to have a distance of 4.31 m between adjacent troughs and an amplitude of 0.540 m. What is the speed of the wave if the measured frequency is 12.4 Hz?

A 2-kg bob is hung vertically from a 4-m long string and is displaced by an angle of 40 degrees. The bob is released from rest and allowed to swing freely. At the bottom of its swing, a small peg (the small black square that is a variable height h above the bottom of the swing) interrupts…

A 5.00 kg pendulum bob is placed on a 6.00 m long string and pulled back 10.0o. What is the period of the pendulum when it is released?

A spring has a constant of 3.80 N/m. A mass of 0.500 kg is attached to it and it is set into oscillation. What is the period of the oscillation?

A particle undergoing simple harmonic motion vibrates 0.0526 m from equilibrium. What is the force on the particle if the constant for the medium is 0.473 N/m

Bob watches an ocean wave and counts 11.0 waves that pass every 60.0 s. What is the frequency of the ocean waves?

A raindrop of mass m falls to the ground at its terminal speed v. The specific heat capacity of water is c and the acceleration of free fall is g. Given that 25% of the energy is retained in the raindrop when it strikes the ground, what is the rise in temperature of the raindrop?

If a wave takes 9.50s to complete 6.00 complete oscillations, what is the period of the wave?

The rectangular objects, A, B, C and D are each 2 cm long and 1 cm high. Which one of the bodies is in equilibrium?

What is the Doppler Frequency of a 211 Hz sound if the source is away from the stationary observer at 45.0 m/s? (Use 345 m/s for the speed of sound)

What is the relative intensity of a sound wave with an intensity of 0.0584 W/m2?

What is the speed of sound at -10.0oC?

The standing wave above is set up on a string that has a total length of 5.00 m. what is the wavelength of the wave

What is the frequency of a wave that has a wavelength of 4.72 m and travels at 50.0 m/s

What is the speed of a wave that has a wavelength of 0.285 m, an amplitude of 0.500 m, and frequency of 2.00 Hz

two uniform solid masses M (radius R ) and m (radius r) are released from rest when their center to center separation is L. The only force on them is their mutuel gravitational attraction a. When they collide M has a speed V and m has a speed v. What is the relationship between V and v b.…

A 5.00 kg pendulum bob is placed on a 6.00 m long string and pulled back 10.0o. What is the period of the pendulum when it is released?

What would be the period of an oscillating spring that has a mass of 1.92 kg attached to it if the spring constant has a value of 0.800 N/m?

What is the frequency of a particle that vibrates with a period of 0.0356 s

If a wave takes 3.50s to complete 8.00 complete oscillations, what is the period of the wave

What is the relative intensity of a sound wave with an intensity of 0.000845 W/m2?

A public address system puts out 5.92 W of power. What will be the intensity at a distance that results in a surface area of 9.47 m2?

What is the speed of sound at -10.0oC?

What is the wavelength of a wave with a velocity of 5.28 m/s and a frequency of 7.39 Hz

What is the speed of a wave that has a wavelength of 0.285 m, an amplitude of 0.500 m, and frequency of 2.00 Hz?

A string that is 0.250 m long has a bob with a mass of 12.3 kg placed on it. It is allowed to swing so that it's amplitude is 0.100 m. What is the period of oscillation?

A spring has a constant of 3.80 N/m. A mass of 0.500 kg is attached to it and it is set into oscillation. What is the period of the oscillation?

What is the force on a spring with a spring constant of 3.44N/m if it is pulled back 0.738m?

What is the frequency of a wave with a period of 13.8 s?

A man taps his shoe 5.00 times every 3.75 s. what is the frequency of the vibration?

If a wave takes 9.50s to complete 6.00 complete oscillations, what is the period of the wave?

(a) How much more intense is a sound that has a level 11.0 dB higher than the other? (b) If one sound has a level 29.0 dB less than another, what is the ratio of their intensities?

If a woman needs an amplification of 8.5 ✕ 104 times the threshold intensity to enable her to hear at all frequencies, what is her overall hearing loss in dB? Note that smaller amplification is appropriate for more intense sounds to avoid further damage to her hearing from levels above 90 dB. …

(a) What frequency (in Hz) is received by a person watching an oncoming ambulance moving at 104 km/h and emitting a steady 600 Hz sound from its siren? The speed of sound on this day is 345 m/s. Hz (b) What frequency (in Hz) does she receive after the ambulance has passed? Hz

Find the sound intensity level in decibels of 5.50 ✕ 10−2 W/m2 ultrasound used in medical diagnostics. dB

A commuter train blows its 200 Hz horn as it approaches a crossing. The speed of sound is 332 m/s. (a) An observer waiting at the crossing receives a frequency of 207 Hz. What is the speed of the train (in m/s)?

What is the period of a wave with a frequency of 214 Hz.

What is the Doppler Frequency of a 315 Hz sound if the source is headed toward the stationary observer at 35.0 m/s? (Use 345 m/s for the speed of sound)

What is the relative intensity of a sound wave with an intensity of 0.376 W/m2

What is the speed of sound at 30.0oC

What is the frequency of a wave that has a wavelength of 0.894 m and travels at 1.76 m/s

A wave is measured and found to have a distance of 3.14 m between adjacent troughs and an amplitude of 1.54 m. What is the speed of the wave if the measured frequency is 2.41 Hz?

A string that is 0.250 m long has a bob with a mass of 12.3 kg placed on it. It is allowed to swing so that it's amplitude is 0.100 m. What is the period of oscillation?

What would be the period of an oscillating spring that has a mass of 1.92 kg attached to it if the spring constant has a value of 0.800 N/m?

A particle undergoing simple harmonic motion vibrates 0.0526 m from equilibrium. What is the force on the particle if the constant for the medium is 0.473 N/m

What is the period of a wave with a frequency of 214 Hz.

Bob watches an ocean wave and counts 11.0 waves that pass every 60.0 s. What is the frequency of the ocean waves?

What is the period of oscillation for a pendulum that completes 3.00 cycles every 2.00 s?

What is the speed of sound at 10.0oC?

if the relative intensity of a sound increased from 2dB to 4dB it would become

What is the frequency of a wave that has a wavelength of 4.72 m and travels at 50.0 m/s

A wave is measured and found to have a distance of 3.14 m between adjacent troughs and an amplitude of 1.54 m. What is the speed of the wave if the measured frequency is 2.41 Hz?

A wave were particles vibrate parallel to the transfer of energy are called

What is the period of a 2.25 kg mass that is placed on a spring with a constant of 10.0 N/m when is pulled and released to oscillate?

What is the spring constant for a spring if pulling it back 0.391 m causes a force in the opposite direction of 0.922 N?

If the period of a pendulum is 3.00 s, what is the frequency

What is the period for a particle that vibrates 4.0 times ever 1.5

How gravitational force cause artificial satellite to orbit earth??

vector V1 points along the z axis and has magnitude V1 = 71. vector V2 lies in the xz plane, has magnitude V2 = 59, and makes a -44 ° angle with the x axis ( points below x axis ). what is the scalar product V1 x V2?

what magnitude force is required to give a helicopter of mass M an acceleration of 0.10 g upward?

A machine has an equivalent mass of 90 kg and a stiffness of 0.5 MN/m. An undamped dynamic absorber of mass 34 kg and a stiffness is attached to the system. It is found that the system has zero amplitude at 500 rpm under an excitation harmonic force of 300 N . Calculate the new lower frequency…

23. Four point charges are placed at each corner of a square with side length ( a ). The charges all have the same magnitude ( q ). Two of the charges are positive and two are negative, as shown in the diagram. (a) What is the direction of the net electric field at the center of the square due…

A 63.2-kg climber finds herself dangling over the edge of a cliff. Fortunately, she’s connected by a rope of negligible mass to a rock located 48.6 m from the edge of the cliff, and help is on the way. Unfortunately, it will be 34.5 s before help arrives, and the ice is frictionless. How…

What is the Doppler Frequency of a 315 Hz sound if the source is headed toward the stationary observer at 35.0 m/s? (Use 345 m/s for the speed of sound)

What is the intensity of a sound wave with a relative intensity of 25.3 dB

What is the relative intensity of a sound wave with an intensity of 0.0584 W/m2?

A power source of of 5.18 W produces an intensity of 3.07 W/m2. What must be the surface area that is vibrated?

What is the intensity of a sound wave if the power output of the source is 1.58 W and the surface area is 3.56 m2

What is the speed of sound at -10.0oC?

The relative intensity of the threshold of hearing, 10-12 W/m2, is

What is the frequency of a wave that has a wavelength of 4.72 m and travels at 50.0 m/s

A wave is measured and found to have a distance of 4.31 m between adjacent troughs and an amplitude of 0.540 m. What is the speed of the wave if the measured frequency is 12.4 Hz?

If a pendulum oscillates with a period of 0.700 s, what is the length of the pendulum

A 6.00 kg pendulum bob is placed on a 10.0 m long string and pulled back 5.00o. What is the period of the pendulum when it is released?

A spring has a constant of 3.80 N/m. A mass of 0.500 kg is attached to it and it is set into oscillation. What is the period of the oscillation?

A hard drive is turned on from rest and accelerates to 5200 rpm in 5.24 s . The drive then maintains this rate of rotation for 196 s at which point it is turned off and slows to a stop. the angular acceleration of the drive when it is first turned on -> 104 rad/s^2 If the hard drive has…

A particle undergoing simple harmonic motion vibrates 0.0526 m from equilibrium. What is the force on the particle if the constant for the medium is 0.473 N/m

What is the period of a wave with a frequency of 214 Hz.

Bob watches an ocean wave and counts 11.0 waves that pass every 60.0 s. What is the frequency of the ocean waves?

If a wave takes 9.50s to complete 6.00 complete oscillations, what is the period of the wave?

COnsider a different scenario in which cars stick together after the collision. The masses of the heavier and lighter carst are m1 and m2. Derive an expression for the fraction of of kinetic energy lost during the collision (K lost / K initial). Express your answer in terms of m1 and m2.