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Physics 101 Mechanics
May 2023
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Physics 101 Mechanics
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May 19, 2023
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May 19 of 2023
LeBron James throws a(n) 4 kg steel ball strikes a wall with a speed of 12.2 m/s at an angle of 53.3 degrees normal to the wall. It bounces off with the same speed and angle. If the ball is in contact with the wall for 0.0842s what is the magnitude of the average force exerted on the ball by…

Help me complete this lab please.
The vector v is a constant vector. Determine the time derivative of |v|^2
Emil is tossing and orange of mass 0.30 in to the air email thow the orange straight up and then catches it throwing and then catching it at the same point in space. What is the change in the potential energy of the orange during it's trajectory ? Ignore air resistance.
Justin move a desk 5.0m across a level floor by pushing on it with a constant horizontal force of 340N.(it slight for a negligibly before coming to a stop when the force is removed).then changing his mind, he move back to its starting point, again by moving with a constant force of…
In the mechanism shown below there are 3 rigid rods connected as shown. Joints A and B are pin joints but fixed to the ground, so they can rotate but cannot translate (cannot move in x or y directions). Joints C, D are also pin joints but can translate. The horizontal distance between A and B…
Select the correct expression that shows a simpler diagram, with fewer gates, of the expression X = A · B Choice 'A' Choice 'B' Choice 'C' Choice 'D'
Please be specific
Please be specific.
In a physics demonstration, a volleyball is tossed from a window at 6.0m/s [320 below the horizontal], and it lands 3.4s later. Calculate: a) the height of the window b) The velocity of the volleyball at the ground level.
In a physics demonstration, a volleyball is tossed from a window at 6.0m/s [320 below the horizontal], and it lands 3.4s later. Calculate: a) Determine the electron’s acceleration. b) Determine the time over which acceleration occurs.
1. Determine the resultant of the superposition of the parallel waves: \( E_{1}=E_{01} \cos \left(\omega_{1} t+\epsilon_{1}\right) \) and \( E_{2}=E_{02} \cos \left(\omega_{2} t+\epsilon_{2}\right) \) where \( \omega_{1}=\omega_{2}=120 \pi, E_{01}=6, E_{02}=8, \epsilon_{1}=0 \), and \(…
Air of flowrate 1 Kg/s enters the compressor of a gas turbine at 100 kPa and 25°C. For a pressure ratio of 5 and maximum temperature of 850°C, determine the: • Thermal efficiency • Compressor and Turbine power • Back-work ratio. • Heat added in the combustion chamber.
If \( R=2.0 \mathrm{~kW}, C=4.0 \mathrm{mF}, e=8.0 \mathrm{~V}, Q=20 \mathrm{mC} \), and \( I=3.0 \mathrm{~mA} \), what is the potential difference \( V_{\mathrm{b}}-V_{\mathrm{a}} \) ? Select one: a. \( +9.0 \mathrm{~V} \) b. \( +19 \mathrm{~V} \) c. \( -14 \mathrm{~V} \) d. \( +7.0…
14 31 Which values of current and resistance will produce a rate of energy transfer of \( 16 \mathrm{~J} \mathrm{~s}^{-1} \) ? \begin{tabular}{|c|c|c|} \hline & current/A & resistance \( / \Omega \) \\ \hline A & 1 & 4 \\ \hline B & 2 & 2 \\ \hline C & 2 & 8 \\ \hline D & 4 & 1…
Air is compressed in a cylinder form I m' to 0.35 m° by a piston The relation between the pressure and volume is given by P = § 3v, where P is in bar and V is in m. Compute the magnitude of the work
Block A with a mass of 4.2 kg, is suspended from a vertical string as shown below. The string passes over a pulley and it is attached to block B with a mass of 1.8kg. The pulley and the surface of the ramp are frictionless. a) Calculate the acceleration of the blocks. b) Calculate the…
A car slows down from 100km/h to 0km/h in 5.2 seconds. Determine the breaking distance needed for the car to come to a complete stop.
\begin{tabular}{|l|l|l|l|l|} \hline Household & Previous & Present & \( \begin{array}{l}\text { kWh } \\ \text { Used }\end{array} \) & \( \begin{array}{l}\text { Priced } \\ \text { bill }\end{array} \) \\ \hline A & 2150 & 2493 & & \\ \hline B & 7285 & 7910 & & \\ \hline C & 6412 & 6755 & &…
a 2.5 kg cat moves in a constant velocity as shown in figure
9. A box at rest is accelerated by a rope attached with a motor as shown in the Fig 2.1. The velocity-time graph given below shows the pattern of its motion for \( 20 s \).
The rod OA in Fig. 12-33a rotates in the horizontal plane such that e = (p) rad. At the same time, the collar B is sliding outward along OA so that r = (lOOP) mm. If in both cases t is in seconds, determine the velocity and acceleration of the collar when t = 1 s.
2. In youngs experiment, narrow double slit \( 0.2 \mathrm{~mm} \) apart diffracts monochromatic light onto the screen \( 1.5 \mathrm{~m} \) A qway. The distance between the \( 5^{\text {th }} \) minima on (5) either side of the zero order maxima is measured to be \( 340.73 \mathrm{~m} \).…
Manish goes to office from his house at a speed of \( 3 \mathrm{~km} / \mathrm{h} \) and \( 2 \mathrm{~km} / \mathrm{h} \). If he takes 50 minutes in going to office and return back to his house, find the distance between his house and office. A person travels from \( A \) to \( B \) at \( 56…
Calculate the absolute pressure \( P_{1} \) of the manometer in the figure. Take the local atmospheric pressure to be \( 758 \mathrm{mmHg} \). (1 \( \mathrm{atm}=101,325 \mathrm{kPa}=760 \mathrm{mmHg} \) ) \( \left[1,03 \times 10^{5} \mathrm{~Pa}\right] \)
Problem 7.31 by john r taylor
User Use the Moment Distribution Method to analyse the frame when subjected to the loading shown. Dimensions and load values, which depend on your student ID, are given in the table below. Determine the member forces and support reactions required in the table below. Enter your answers in the…
31.28 [III] A particular solenoid (50 cm long with 2000 turns of wire) carries current of 0.70 A and is in vacuum. An electron is shot at an angle of 10° to the solenoid axis from a point on the axis. (a) What
Consider a negative charge 91 9.00 nC that exists in a space far away from other charges: Let the charge 91 lie at the origin of a standard coordinate system: What is the electri
"26- A light with frequency of 4.9x1014 Hz, used in the double slit experiment shown in the figure, what is the distance between the first- order bright fringes and the bright central band. 26 mm 18 mm"
10th question
The displacement of a 200-g mass on a spring is given by x = (0.054 m) cos ((5.0 rad/s) t + 0.121 pi) Find: (a) the time for one complete vibration (b) the force constant of the spring (c) the maximum speed of the mass (d) the maximum force on the mass (e) the position, speed, and…
"550H Using the resonance formula ZwfRL determine L for the magnet coil: 2nfRC Amplification and Quality Factor At resonance, xd] 1/2 R2 Xc XL X R ` R ` R [Av] Calculate XL ZtfrL or Xc 2nf RC If the ci"
Item 8 Whars the source of the largest natural radiation dose? Cosmic ' rays Internal sources Radon Terrestrial sources
Coil 4, corsisting 800 vrindings Conneced gaanometr_ "Peciiinita galvanomte Jc 2 #nsuciye Curtenc measJrinz Tra nonh Jole 0 : Magnet ^ ix inzerted into tne lef: side cf -hecoilata #Feec on 4 Gne Tnis
"large force small force torque smallradus large radius hinge"
small company makes solenoid inductors for sale_ The radius of the tubeis Rand the length is h_ as shown in Figure. The whole tube is covered with one layer of 1.0 mmn-diameter wire tightly winded (##
"the roller support at A, and pin support at B_ Determine the reactions at 500 Nlm 300 Nm 6 m-"
Write an expression for the difference between the work done isothermally and the work done isobarically.
.4 Different thermometers disagree, except at the fixed points by definition. When using the modern definition of temperature using a single fixed point at the triple point of water \( (273.16 \mathrm{~K}) \) with \( \theta_{X}=\theta_{T P} \frac{Y}{Y_{r P}} \) these differences can be quite…
Two particles P and Q at the same initial position accelerate uniformly from rest along a straight line. After 1sec, P is 0.5m ahead of Q. The separation of P and Q after 2sec from the same start is?
EXERCISE 5.27 A CS amplifier utilizes a MOSFET biased at \( I_{D}=0.25 \mathrm{~mA} \) with \( V_{O V}=0.25 \mathrm{~V} \) and \( R_{D}=20 \mathrm{k} \Omega \). The device has \( V_{A}=50 \mathrm{~V} \). The amplifier is fed with a source having \( R_{\text {sig }}=100 \mathrm{k} \Omega \), and…
A bottle of wine known as magnum contains a volume of 1.5 liters.
Can you solve this? It is written in croatian.
A passenger on an interplanetary express bus traveling a V = 0.85c takes a 15 minute catnap according to her watch. How long does a cat nap last from the vantage point of a fixed planet?
Calculate the percentage of higher isotope of neon which has atomic mass 20.2 and the isotopes have the mass numbers 20 and 22. If the diameter of a carbon atom is \( 0.15 \mathrm{~nm} \), calculate the number of carbon atoms which can be placed side by side in a straight line across the length…
2. A helicopter flying at a horizontal velocity of \( 5 \mathrm{~m} / \mathrm{s} \) drops a package of clothes and food to a group of flood victims stranded on a roof \( 5 \mathrm{~m} \) below. a. When will the package hit the target after release? b. What is the horizontal distance the package…
Simplify \( \frac{a^{2} b^{2} c^{4}}{a b c^{-2}} \) and Evalcate when \( a=3 b \) \[ a=3, b=\frac{1}{8} \text { and } c=2 \]
Ball "A" has mass \( m \) and is moving with velocity "v". It makes a head-on elastic collision with a stationary ball "B" of mass \( 2 \mathrm{~m} \). After the collision their speeds (vA and \( v B \) ) are):
Name to type of evaporation in vapor refrigeration cycle
If the “bad” news that we are about halfway through the fossil fuels is wrong, and we are only one-quarter of the way through, and we end up using all of it, what would the ultimate CO2 concentration be in ppmv, extrapolating the increase so far? How many degrees would this turn into based on…
(a) What are kinematic pairs? With the help of example, classify kinematic pairs according to nature of relative motion between pairing elements. (b) Sketch and explain the working principle of third inversions of a single slider crank chain mechanism.
(b) Sketch and explain the working principle of third inversions of a single slider crank chain mechanism.
2. (a), What are kinematic pairs? With the help of example, classify kinematic pairs according to nature of relative motion between pairing elements.
The diagram below shows four coastline locations on Earth with respect to the moon at a given time. Earth is shown as a circle with a smaller circle labeled Moon above it. Points A and C are marked at the top and bottom ends of the circle representing Earth. Points B and D are marked at the…
1. A rock is thrown horizontally from the top of a cliff \( 88 \mathrm{~m} \) high, with a horizontal speed of \( 25 \mathrm{~m} / \mathrm{s} \) a. For what interval of time is the rock in the air? b. How far from the base of the cliff does the rock land? c. With what velocity does the rock…
1. A rock is thrown horizontally from the top of a cliff \( 88 \mathrm{~m} \) high, with a horizontal speed of \( 25 \mathrm{~m} / \mathrm{s} \) a. For what interval of time is the rock in the air? b. How far from the base of the cliff does the rock land? c. With what velocity does the rock…
1.A baseball is thrown horizontally with a velocity of \( 44 \mathrm{~m} / \mathrm{s} \). It travels a horizontal distance of \( 18 \mathrm{~m} \), to the plate before it is caught. How far does the baseball drop during its flight?
5. Una caja hermĂ©tica tiene una tapa extraible de \( 1,3 \times 10^{-2} \mathrm{~m}^{2} \) de área y peso despreciable. Se sube la caja a una montaña donde la presiĂłn del aire exterior a la caja es \( 0,85 \times 10^{5} \mathrm{~Pa} \). El interior de la caja está completamente vacĂo. ÂżCuál es…
i. A constant retarding force of \( 10 \mathrm{~N} \) is exerted to a body of mass \( 20 \mathrm{~kg} \) moving initially with a speed of \( 10 \mathrm{~m} / \mathrm{s} \). How long does the bodv take to stop? (Ans: \( 20 \mathrm{~s} \) )
2.1 If the atmospheric pressure is \( 0.995 \mathrm{~atm} \), what is the pressure of the enclosed gas in each of the cases depicted in the drawing? Assume that the liquid in the \( U \) tube is mercury 2.1 .1 \[ h=52 \mathrm{~cm} \] (2) 2.1.2 \( h=67 \mathrm{~cm} \) (2) 2.2 A fixed quantity of…
The same ore in example 1 is dried in a batch drier tray with the same system but under different operating conditions. Its operating conditions are as follows: • tray (pan) used size 60 x 60 cm with a thickness of 12 mm, • dryer air temperature 60oC, humidity remains the same = 0.01…
LeBron James throws a(n) 4 kg steel ball strikes a wall with a speed of 12.2 m/s at an angle of 53.3 degrees normal to the wall. It bounces off with the same speed and angle. If the ball is in contact with the wall for 0.0842s what is the magnitude of the average force exerted on the ball by…
Help me complete this lab please.
Select the correct expression that shows a simpler diagram, with fewer gates, of the expression X = A · B Choice 'A' Choice 'B' Choice 'C' Choice 'D'
Please be specific
Please be specific.
In a physics demonstration, a volleyball is tossed from a window at 6.0m/s [320 below the horizontal], and it lands 3.4s later. Calculate: a) the height of the window b) The velocity of the volleyball at the ground level.
In a physics demonstration, a volleyball is tossed from a window at 6.0m/s [320 below the horizontal], and it lands 3.4s later. Calculate: a) Determine the electron’s acceleration. b) Determine the time over which acceleration occurs.
Air of flowrate 1 Kg/s enters the compressor of a gas turbine at 100 kPa and 25°C. For a pressure ratio of 5 and maximum temperature of 850°C, determine the: • Thermal efficiency • Compressor and Turbine power • Back-work ratio. • Heat added in the combustion chamber.
Block A with a mass of 4.2 kg, is suspended from a vertical string as shown below. The string passes over a pulley and it is attached to block B with a mass of 1.8kg. The pulley and the surface of the ramp are frictionless. a) Calculate the acceleration of the blocks. b) Calculate the…
A car slows down from 100km/h to 0km/h in 5.2 seconds. Determine the breaking distance needed for the car to come to a complete stop.
31.28 [III] A particular solenoid (50 cm long with 2000 turns of wire) carries current of 0.70 A and is in vacuum. An electron is shot at an angle of 10° to the solenoid axis from a point on the axis. (a) What
Consider a negative charge 91 9.00 nC that exists in a space far away from other charges: Let the charge 91 lie at the origin of a standard coordinate system: What is the electri
"26- A light with frequency of 4.9x1014 Hz, used in the double slit experiment shown in the figure, what is the distance between the first- order bright fringes and the bright central band. 26 mm 18 mm"
The displacement of a 200-g mass on a spring is given by x = (0.054 m) cos ((5.0 rad/s) t + 0.121 pi) Find: (a) the time for one complete vibration (b) the force constant of the spring (c) the maximum speed of the mass (d) the maximum force on the mass (e) the position, speed, and…
Item 8 Whars the source of the largest natural radiation dose? Cosmic ' rays Internal sources Radon Terrestrial sources
If the “bad” news that we are about halfway through the fossil fuels is wrong, and we are only one-quarter of the way through, and we end up using all of it, what would the ultimate CO2 concentration be in ppmv, extrapolating the increase so far? How many degrees would this turn into based on…