Physics for Scientists and Engineers with Modern Physics
10th Edition
ISBN: 9781337553292
Author: Raymond A. Serway, John W. Jewett
Publisher: Cengage Learning
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Chapter 38, Problem 39P
To determine
The estimate of the difference between the actual kinetic energy and
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Since the initial potential energy and final kinetic energy are zero, our equation now becomes
EP,f = EK,i.
We can then substitute the formula for kinetic energy,
EK = 1/2mv2,
and the formula for gravitational potential energy,
EP = mgh,
mghf = 1/2mvi2.
Now it's just a matter of doing the algebra, solving for the final height
hf,
and substituting values to find
hf.
Notice that the mass m divides out of both sides of the equation, so the value of the mass is not needed to find the final height.
Calculate the maximum height of the ball in meters.
hf = __________ m
Assume that a 50-kg skater, on level ice, has built up her speed to30km/h. How far will she coast before the sliding friction dissipatesher energy? (Kinetic energy=1/2*mv^2; see Appendix A.) (b) How doesthe distance of coasting depend on the mass of the skater
Please show me step by step. and explain it to me. Thank you!
Consider the motion of a particle of mass m=2 for x>0, assuming it is subject to the following force:
f = 4/x2 -1
i. assume that the particle was released at rest at x=4. what is its total energy?
ii. what is the particle’s velocity at the point x = 3? what is its maximal speed and where is it attained?
Chapter 38 Solutions
Physics for Scientists and Engineers with Modern Physics
Ch. 38.1 - Which observer in Figure 38.1 sees the balls...Ch. 38.1 - Prob. 38.2QQCh. 38.4 - Suppose the observer O on the train in Figure 38.6...Ch. 38.4 - Prob. 38.4QQCh. 38.4 - Prob. 38.5QQCh. 38.4 - You are observing a spacecraft moving away from...Ch. 38.6 - You are driving on a freeway at a relativistic...Ch. 38.8 - Prob. 38.8QQCh. 38 - In a laboratory frame of reference, an observer...Ch. 38 - Prob. 2P
Ch. 38 - Prob. 3PCh. 38 - Prob. 4PCh. 38 - Prob. 5PCh. 38 - An astronaut is traveling in a space vehicle...Ch. 38 - Prob. 7PCh. 38 - You have been hired as an expert witness for an...Ch. 38 - Prob. 9PCh. 38 - Prob. 10PCh. 38 - Prob. 11PCh. 38 - A cube of steel has a volume of 1.00 cm3 and mass...Ch. 38 - Review. In 1963, astronaut Gordon Cooper orbited...Ch. 38 - You have an assistantship with a math professor in...Ch. 38 - Prob. 15PCh. 38 - Prob. 16PCh. 38 - A moving rod is observed to have a length of =...Ch. 38 - Prob. 18PCh. 38 - Prob. 19PCh. 38 - You have been hired as an expert witness in the...Ch. 38 - Figure P38.21 shows a jet of material (at the...Ch. 38 - Prob. 22PCh. 38 - Prob. 23PCh. 38 - Prob. 24PCh. 38 - Prob. 25PCh. 38 - Prob. 26PCh. 38 - Prob. 27PCh. 38 - (a) Find the kinetic energy of a 78.0-kg...Ch. 38 - Prob. 29PCh. 38 - Prob. 30PCh. 38 - Prob. 31PCh. 38 - Prob. 32PCh. 38 - Prob. 33PCh. 38 - Prob. 34PCh. 38 - Prob. 35PCh. 38 - Prob. 36PCh. 38 - Prob. 37PCh. 38 - Prob. 38PCh. 38 - Prob. 39PCh. 38 - An unstable particle with mass m = 3.34 1027 kg...Ch. 38 - Prob. 41PCh. 38 - Prob. 42APCh. 38 - Prob. 43APCh. 38 - Prob. 44APCh. 38 - Prob. 45APCh. 38 - Prob. 46APCh. 38 - Prob. 47APCh. 38 - Prob. 48APCh. 38 - Prob. 49APCh. 38 - Prob. 50APCh. 38 - Prob. 51APCh. 38 - Prob. 52APCh. 38 - The creation and study of new and very massive...Ch. 38 - Prob. 54CPCh. 38 - Prob. 55CP
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