College Physics
7th Edition
ISBN: 9780321601834
Author: Jerry D. Wilson, Anthony J. Buffa, Bo Lou
Publisher: Addison-Wesley
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Chapter 2, Problem 13MCQ
To determine
The velocity-versus-time graph for a constant linear acceleration.
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A pendulum has a 0.4-m-long cord and is given a tangential velocity of 0.2 m/s toward the
vertical from a position 0 = 0.3 rad.
Part A
Determine the equation which describes the angular motion.
Express your answer in terms of the variable t. Express coefficients in radians to three significant figures.
ΜΕ ΑΣΦ
vec
(t)=0.3 cos (4.95t) + 0.101 sin (4.95t)
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Part A
■Review
The uniform 150-lb stone (rectangular block) is being turned over on its side by pulling the
vertical cable slowly upward until the stone begins to tip.
(Figure 1)
If it then falls freely (T = 0) from an essentially balanced at-rest position, determine the speed at which the corner A strikes the pad at B. The stone does not slip at its corner C as it falls. Suppose that height of the stone is
L = 1.2 ft.
Express your answer to three significant figures and include the appropriate units.
?
ft
VA 10.76
S
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Consider the circuit shown in the figure. The battery has emf ε = 69 volts and negligible internal resistance. The inductance is L = 0.4 H and the resistances are R 1 = 12 Ω and R 2 = 9.0 Ω. Initially the switch S is open and no currents flow. Then the switch is closed. After leaving the switch closed for a very long time, it is opened again. Just after it is opened, what is the current in R 1?
Chapter 2 Solutions
College Physics
Ch. 2 - Prob. 1MCQCh. 2 - Prob. 2MCQCh. 2 - Prob. 3MCQCh. 2 - Prob. 4MCQCh. 2 - Distance is to displacement as (a) centimeters is...Ch. 2 - Prob. 6MCQCh. 2 - Prob. 7MCQCh. 2 - A negative acceleration can cause (a) an increase...Ch. 2 - Prob. 9MCQCh. 2 - Prob. 10MCQ
Ch. 2 - Prob. 11MCQCh. 2 - A car accelerates from 80 km/h to 90 km/h, while a...Ch. 2 - Prob. 13MCQCh. 2 - For a constant linear acceleration, the...Ch. 2 - Prob. 15MCQCh. 2 - An object is thrown vertically upward. Which of...Ch. 2 - Prob. 17MCQCh. 2 - Prob. 18MCQCh. 2 - Prob. 19MCQCh. 2 - Prob. 20MCQCh. 2 - Prob. 1CQCh. 2 - Prob. 2CQCh. 2 - Prob. 3CQCh. 2 - Prob. 4CQCh. 2 - Prob. 5CQCh. 2 - Prob. 6CQCh. 2 - Prob. 7CQCh. 2 - Prob. 8CQCh. 2 - Prob. 9CQCh. 2 - Prob. 10CQCh. 2 - Car A is in a straight-line distance d from a...Ch. 2 - Prob. 12CQCh. 2 - Prob. 13CQCh. 2 - How many variables must be known to solve a...Ch. 2 - Prob. 15CQCh. 2 - Prob. 16CQCh. 2 - Prob. 17CQCh. 2 - Prob. 18CQCh. 2 - Prob. 19CQCh. 2 - Prob. 20CQCh. 2 - What is the magnitude of the displacement of a car...Ch. 2 - Prob. 2ECh. 2 - Prob. 3ECh. 2 - Prob. 4ECh. 2 - Prob. 5ECh. 2 - Prob. 6ECh. 2 - Prob. 7ECh. 2 - Prob. 8ECh. 2 - The interstate distance between two cities is 150...Ch. 2 - A race car travels a complete lap on a circular...Ch. 2 -
A student runs 30 m east, 40 m north, and 50 m...Ch. 2 - A student throws a ball vertically upward such...Ch. 2 - An insect crawls along the edge of a rectangular...Ch. 2 - A plot of position versus time is shown in Fig....Ch. 2 - A high school kicker makes a 30.0-yd field goal...Ch. 2 - Prob. 17ECh. 2 - Prob. 18ECh. 2 - Short hair grows at a rate of about 2.0 cm/month....Ch. 2 - A student driving home for the holidays starts at...Ch. 2 - Prob. 21ECh. 2 - Prob. 22ECh. 2 - An automobile traveling at 15.0 km/h along a...Ch. 2 - Prob. 24ECh. 2 - Prob. 25ECh. 2 - Prob. 26ECh. 2 - Prob. 27ECh. 2 - During liftoff, a hot-air balloon accelerates...Ch. 2 - A new-car owner wants to show a friend how fast...Ch. 2 - After landing, a jetliner on a straight runway...Ch. 2 - A train on a straight, level track has an initial...Ch. 2 - A hockey puck sliding along the ice to the left...Ch. 2 - What is the acceleration for each graph segment in...Ch. 2 - Figure 2.24 shows a plot of velocity versus time...Ch. 2 - Prob. 35ECh. 2 - A train normally travels at a uniform speed of 72...Ch. 2 - Prob. 37ECh. 2 - A car accelerates from rest at a constant rate of...Ch. 2 - A car traveling at 25 mi/h is to stop on a...Ch. 2 - A motorboat traveling on a straight course slows...Ch. 2 -
The driver of a pickup truck going 100 km/h...Ch. 2 - A roller coaster car traveling at a constant speed...Ch. 2 - A rocket car is traveling at a constant speed of...Ch. 2 - Two identical cars capable of accelerating at 3.00...Ch. 2 - According to Newton’s laws of motion (which will...Ch. 2 - An object moves in the +x-direction at a speed of...Ch. 2 - A rifle bullet with a muzzle speed of 330 m/s is...Ch. 2 - The speed limit in a school zone is 40 km/h (about...Ch. 2 - Assuming a reaction time of 0.50 s for the driver...Ch. 2 - Prob. 50ECh. 2 - Prob. 51ECh. 2 - An object initially at rest experiences an...Ch. 2 - Prob. 53ECh. 2 - An object initially at rest experiences an...Ch. 2 - Prob. 55ECh. 2 - Prob. 56ECh. 2 - A car accelerates horizontally from rest on a...Ch. 2 - An automobile is traveling on a long, straight...Ch. 2 - A student drops a ball from the top of a tall...Ch. 2 - Prob. 60ECh. 2 - Prob. 61ECh. 2 - You can perform a popular trick by dropping a...Ch. 2 - Prob. 63ECh. 2 - A boy throws a stone straight upward with an...Ch. 2 - In Exercise 64, what would be the maximum height...Ch. 2 -
The Petronas Twin Towers in Malaysia and the...Ch. 2 - In an air bag test, a car traveling at 100 km/h is...Ch. 2 -
You throw a stone vertically upward with an...Ch. 2 - A Super Ball is dropped from a height of 4.00 m....Ch. 2 - In Fig. 2.25, a student at a window on the second...Ch. 2 -
A photographer in a helicopter ascending...Ch. 2 - The acceleration due to gravity on the Moon is...Ch. 2 - It takes 0.210 s for a dropped object to pass a...Ch. 2 - Prob. 74ECh. 2 - Prob. 75ECh. 2 - Prob. 76ECh. 2 - A car and a motorcycle start from rest at the same...Ch. 2 - Prob. 78ECh. 2 - Prob. 79ECh. 2 - Prob. 80ECh. 2 - Prob. 81ECh. 2 - Prob. 82ECh. 2 - Prob. 83ECh. 2 - Prob. 84ECh. 2 - Prob. 85ECh. 2 - Prob. 86ECh. 2 - Prob. 87ECh. 2 - A Superball is dropped from a height of 2.5 m and...
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