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Physics 101 Mechanics
May 2023
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Physics 101 Mechanics
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May 7, 2023
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May 7 of 2023
During a collision with the floor, the velocity of a 0.100-kg ball changes from 28 m/s downward toward the floor to 17 m/s upward away from the floor. If the time the ball was in contact with the floor was 0.047 seconds, what was the magnitude of the average force of impact? Answer in positive…
power problems in physics
1.3 A water pipe is inclmed 30 below the horizunal. The radius of bhe pipe at dhan afrea and ind ( 200 mathrm{~cm} ). If the gauge preisure at a point at the upper end is 0.109 atme whar as ehe grage prensare at a point ( 3.00 mathrm{~m} ) downstream where the pipe has narwwed to 100 s madutas?…
Design a parallel twin-turbo system for a V6 Cl engine which has the specifications given in the table on the right. Using the data given, calculate or determine the following: 1. Model & size of turbochargers 2. Compressor outlet temp 3. Total intercooler heat dissipation (for both…
A shrimp boat approaches a floating pier 100m ahead at a velocity of 34.5m/s. The pilot reduces the throttle, slowing the boat with a constant acceleration of -2.80m/s2
The wave function of a particle is confined to a harmonic oscillator potential given by \[ v=A e^{\left(\frac{-m x^{2}}{2 \hbar}-\frac{i w t}{2}\right)} \] (i) Verify that this is a solution to the Schrodinger equation \[ -\frac{\hbar^{2}}{2 m} \frac{\partial^{2}}{\partial x^{2}} \psi(x,…
The amplitude of a 17-kg object in simple harmonic motion is 6.68 m. The maximum acceleration of the object is 5.00 m/s2. What is the period of simple harmonic motion? Express the answer in seconds.
The amplitude of a 2-kg object in simple harmonic motion is 11.6 m. The maximum speed of the object is 7.4 m/s. What is the period of the simple harmonic motion? Answer in seconds.
6. The star-connected load having impedance of \( 40-\mathrm{j} 20 \Omega \) per phase is connected in parallel with the delta-connected load having impedance of \( 20+j 40 \Omega \) per phase. With both the loads being balanced, and fed from a three-phase, \( 230 \mathrm{~V} \), balanced…
4.a) A body describes a circumference of radius 2m and the motion is uniform. It does 2 rotations in 6s. If π 2 = 9.86, find the centripetal acceleration. b) The wheel of an engine of 4m diameter does 90 rotations per minute. Calculate: i) the linear speed. ii) the angular speed. iii)…
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62kg cyclist changes the speed of a 12kg bicycle from 8.2m/s to 12.7 m/s calculate the work done by the cyclist
A police cruiser sets up a novel radar speed trap, consisting of two transmitting antennas at the edge of a main north-south road. One antenna is 2.0 m [W] of the other. The antennas, essentially point sources of continuous radio waves, are fed from a common transmitter with a frequency of…
A mechanic hangs a sign outside the workshop as shown below. The 200.0-N sign hangs from a beam that weighs 50.0 N. The beam is attached to a wall by a hinge, and the other end of the beam is supported by a cable whose breaking strength is 417 N. The beam is 1.50-m long. The sign’s…
A force F is applied such that a ramp (m2) and a block (m1) have no motion between them (i.e. the block stays at the same location on the ramp not sliding up or down the ramp). All surfaces are frictionless. draw force diagram m1, m2 each
1. The data of \( I \) and \( t \) measurements during the charging of the capacitor will be given 3. Find the experimental time constant \( \tau \) of the by the Table (1). circuit from the \( I \) vs \( t \) graphs. Find it from both the charging and discharging graphs. Table-1: The data…
Aam 3: Energy and Momentum Hulky and Bulky have different approaches to lifting a factory crate 4.0 meters in elevation.
15a. Who must exert the larger magnitude of force to move their crate at constant speed?
In the game "tug of war" you and your opponent each hold one end of a massive rope. You apply a force to the rope and your opponent applies a force to the rope. The loser is the person who crosses the center line first. If you lose the game of tug of war by being pulled to the right across the…
Question 2 (low to medium difficulty) The continuous beam in Figure 2 is the same as in Example 1 in Lecture 019. Try to sketch the bending moment diagram and direction of reactions of all supports without doing calculations. Then calculate the bending moment diagram using the reaction moment…
Choices for the following blanks are: positive zero negative Sa. A box that was initially moving comes to rest due to friction. The work done by the force of friction on the box is
12. A car's tracking device indicates that the car is currently located at point \( (17,14) \). If each unit on the grid of the tracking device is equivalent to \( 5 \mathrm{~km} \), how far is the car from its starting point at \( (1,2) \) ?
Water flows radially between the two flanges at the end of a 6" diameter pipe as shown in Fig. 7-26. Neglecting losses, if the pressure head at A is —1.0 ft, find the pressure head at B and the flow in cf
A rock is thrown horizontally from the fop of a cliff \( 88 \mathrm{~m} \) high, with a horizontal speed of \( 25 \mathrm{~m} / \mathrm{s} \). 12. For what interval of time is the rock in the air? A. \( 4.24 \mathrm{~s} \) B. \( 4.29 \mathrm{~s} \) C. \( 5.24 \mathrm{~s} \) D. \( 5.29…
. \( +4.0 \mu \mathrm{C} \), are fixed in place and separated by \( 3.0 \mathrm{~m} \). (a) At what the positive charge. What would be the forint: The spot does not necessarily lie between the two charges.) (b) on a charge of \( -5.0 \mu \mathrm{C} \) placed at this spot? Ans: \( (3…
A 2.00 × 10^2 g sample of water is at 70.0°C is heated to steam at 150.0 °C . How much heat is absorbed?
A fan turns at a rate of \( 900 \mathrm{rpm} \). Find the tangential speed of the tip of a blade if the distance from the center to the tip is \( 20 \mathrm{~cm} \). A pulley of \( 5 \mathrm{~cm} \) radius, on a motor, is turning at \( 30 \mathrm{rev} / \mathrm{s} \) and slows down uniformly to…
charge? must be transferred from, while a rod carries a charge of \( +2.0 \mu \mathrm{C} \). How many the plate to the rod, so that both objects have the same \( y=+3.0 \mathrm{~m} \). A charge of to an \( x, y \) coordinate system. A charge of \( +18 \mu \mathrm{C} \) is on the \( y \) axis at…
of the force exerted on \( \mathrm{Q} \) by q?. Ans: ( \( 3 \mathrm{~N} \) ) electrons must b charge of \( -3.0 \mu \mathrm{C} \), while a rod carries a charge of \( +2.0 \mu \mathrm{C} \). How many charge? Ans: (1.6 transferred from the plate to the rod, so that both objects have the same
second part please, answer for part a is 9.2m
what is force in terms of aeronautics ?
D3.6. In free space, let \( \mathbf{D}=8 x y z^{4} \mathbf{a}_{x}+4 x^{2} z^{4} \mathbf{a}_{y}+16 x^{2} y z^{3} \mathrm{pC} / \mathrm{m}^{2} \). (a) Find the total electric flux passing through the rectangular surface \( z=2,0<x<2,1<y<3 \), in the \( \mathbf{a}_{z} \) direction. (b) Find \(…
The diagram shows four ( 6-mu mathrm{F} ) capacitors. The capacitance between points ( a ) and ( b ) is:A. ( 6 mu mathrm{F} )B. ( 3 mu mathrm{F} )C. ( 4 mu mathrm{F} )D. ( 9 mu mathrm{F} )
Please help and explain
Please help and explain
Please help and explain
What is the reading on each of the precision measuring scales below ? Give a brief indication of the procedure you followed to obtain the final value ( i.e., briefly mention how you used the main scale and vernier scale to obtain the final reading ) .
Please help explain
In each of the following examples you should rearrange the equation so that you can plot a straight-line graph, explain (and sketch) what you would plot on the x- and y-axes, and how you would determine the unknown quantities from the graph. (a) z=a/t+b/t^2 …
5. What is the sound intensity at a location where the sound level is \( 23 \mathrm{~dB} \) ? Ans. \( \left(2 \times 10^{-10} \mathrm{~W} / \mathrm{m}^{2}\right) \) 6. A recording engineer works in a soundproofed room that is \( 44.0 \mathrm{~dB} \) quieter than the outside. If the sound…
4. A beam of sound has an intensity of \( 3.0 \times 10 \% \mathrm{~W} / \mathrm{m}^{2} \). What is the intensity level in decibels? Ans. \( (184.77 \mathrm{~dB}) \)
A shaft is rotating at a uniform speed with four masses \( \mathrm{m}, \mathrm{ms} \), \( \mathrm{m} \) and \( \mathrm{m} \), of magnitudes \( 300 \mathrm{~kg} \), \( 450 \mathrm{~kg} \), ' \( \mathrm{m} \) ' \( \mathrm{kg} \) and \( 390 \mathrm{~kg} \) respectively. The masses are rotating in…
2. TWO POINT CHARGES \( q_{1}=2.1 \times 10^{-8} \) C AND \( q_{2}=-4 q_{1} \) ARE FIXED IN PLACE \( 50 \mathrm{~cm} \) APART. FIND THE POINT ALONG THE STRAIGHT IINE PASSING THROUGH THE TWO CHARGES AT WHICH THE ELECTRIC FIELD IS ZERO.
A ball of a mama 0.1 kg is thrown vertically upwards with a velocity of 20m/s a) what is the potential energy at the maximum height? b) what is the potential energy of the ball when it reaches the quarters of the maximum height moving upwards?
Water, assumed incompressible, flows steadily through the round pipe in the below figure. The entrance velocity is constant, u = U_{a} and the exit velocity approximates turbulent flow, u = iota max (1-r/R)^ 1/7 . Determine the ratio U o /u max for this flow, correct up to 2 significant digits.
During a thermodynamic cycle, an ideal heat engine absorbs heat Q 2 > 0 from a hot source and uses it to perform work L > 0, transferring heat Q 1 < 0 to a cold source, with an efficiency of 20%. What is the work done in terms of Q 1 ?
Type question here (Keep it short & clear to get the best answer)
flow chart of msc mechanic
draw force diagram m1, m2 each
moves \( 16.0 \mathrm{~cm} \) through the horizontal barrel of the cannon, and the barrel exerts a constant frictlon force of \( 0.0311 \mathrm{~N} \) on the ball. (a) With what speed does the projectile leave the barrel of the cannon? 1 1.38 \( \mathrm{m} / \mathrm{s} \) (b) At what point does…
normal, what is the refractive index of the unknown liquid? (5. A ray of light is incident on a plane surface separating two sheets of glass with refractive index 1.70 and 1.58. The angle of incident is \( 62.0^{\circ} \) and the ray originates in the glass with \( \mu=1.70 \). Compute the Ans:…
are Four questions in this section. Answer any THREE questions. State zeroth and third law of thermodynamics with suitable examples. A sample of carbon dioxide that initially occupies \( 1.5 \mathrm{~m}^{3} \) at \( 250 \mathrm{~K} \) and \( 1.00 \mathrm{~atm} \) is compressed isothermally.…
A 87.0 kg skydiver can be modeled as a rectangular "box" with dimensions 24.0 cm × 44.0 cm × 175 cm . The air drag force on a falling object can be approximated using the formula F=12⋅C⋅ρ⋅A⋅v2 . In this formula, C is the drag coefficient which in approximately 0.80 for this scenario, ρ is the…
the magnitude of the acceleration of the book on the incline 5.85158 The 1.5 kg physics book in figure is connected by a string to a 250 g coffee cup. The book is given a push up the slope and released with a speed of 2.9 m/s . The coefficients of friction are μs =0.50 and μk =0.20. 1…
1.What are the different properties of light and write a short discussion for every property.2.What are some applications of light in science and technology. 3. How do different light sources affect our daily lives?
my question is in the picture below. thank you in advance
Un muchacho de masa 40 kg salta al agua con velocidad horizontal de 1.0 m/s desde una balsa de masa 50 kg. ¿Cuál es el valor de la velocidad respecto al agua que adquiere la balsa? Desprecia la resistencia del agua a movimiento de la balsa.
Una bola de masa 1.0 kg se mueve perpendicularmente a una pared y hacia ella a 2.0 m/s y rebota con velocidad de 1.5 m/s. La variación de la cantidad de movimiento de la bola es un vector:
Dos carritos se mueven uno al encuentro del otro con iguales valores de velocidad, v. Sus masas son m y 2m. ¿Cuál es el valor de la velocidad de los carritos después de un choque totalmente inelástico entre ellos?
8) A light inextensible string is connected at its ends to two particles of masses \( m_{1} \) and \( m_{2}\left(m_{1}>m_{2}\right) \) and passes over a uniform circular pulley of radius \( a \) which can rotate freely about a fixed horizontal axis through its centre. The particles hang freely…
3.1. The three point charges in the rectangular figure below are each \( 7.0 \mu \mathrm{C} \), that is, \( q 1=q 2=q 3=7.0 \mu \mathrm{C} \). Using a \( =50 \mathrm{~cm} \), calculate the: (a) Magnitude and direction of the force on the top right charge q1 due to the other charges. (6)
During a collision with the floor, the velocity of a 0.100-kg ball changes from 28 m/s downward toward the floor to 17 m/s upward away from the floor. If the time the ball was in contact with the floor was 0.047 seconds, what was the magnitude of the average force of impact? Answer in positive…
The amplitude of a 17-kg object in simple harmonic motion is 6.68 m. The maximum acceleration of the object is 5.00 m/s2. What is the period of simple harmonic motion? Express the answer in seconds.
The amplitude of a 2-kg object in simple harmonic motion is 11.6 m. The maximum speed of the object is 7.4 m/s. What is the period of the simple harmonic motion? Answer in seconds.
62kg cyclist changes the speed of a 12kg bicycle from 8.2m/s to 12.7 m/s calculate the work done by the cyclist
A force F is applied such that a ramp (m2) and a block (m1) have no motion between them (i.e. the block stays at the same location on the ramp not sliding up or down the ramp). All surfaces are frictionless. draw force diagram m1, m2 each
D3.6. In free space, let \( \mathbf{D}=8 x y z^{4} \mathbf{a}_{x}+4 x^{2} z^{4} \mathbf{a}_{y}+16 x^{2} y z^{3} \mathrm{pC} / \mathrm{m}^{2} \). (a) Find the total electric flux passing through the rectangular surface \( z=2,0<x<2,1<y<3 \), in the \( \mathbf{a}_{z} \) direction. (b) Find \(…
In each of the following examples you should rearrange the equation so that you can plot a straight-line graph, explain (and sketch) what you would plot on the x- and y-axes, and how you would determine the unknown quantities from the graph. (a) z=a/t+b/t^2 …
A ball of a mama 0.1 kg is thrown vertically upwards with a velocity of 20m/s a) what is the potential energy at the maximum height? b) what is the potential energy of the ball when it reaches the quarters of the maximum height moving upwards?
draw force diagram m1, m2 each
my question is in the picture below. thank you in advance