College Physics Volume 1 (Chs. 1-16); Mastering Physics with Pearson eText -- ValuePack Access Card -- for College Physics (10th Edition)
10th Edition
ISBN: 9780134151779
Author: Hugh D. Young, Philip W. Adams, Raymond Joseph Chastain
Publisher: PEARSON
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Chapter 4, Problem 44GP
|| A spacecraft descends vertically near the surface of Planet X. An upward thrust of 25.0 kN from its engines slows it down a: a rate of 1.20 m/s2, out it speeds up at a rate of 0.80 m/s2 with an upward thrust of 10.0 kN. (a) In each cause, what is the direction of the acceleration of the spacecraft? (b) Draw a free-body diagram for the spacecraft. In each case. speeding up or slowing down what is the direction of the net force of the spacecraft-? (c) Apply Newton's second law to each case slowing down or speeding up, and use this to find the spacecraft’s weight near the surface of Planet X.
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Two mirrors meet an angle, a, of 105°. A ray of light is incident upon mirror A at an angle, i, of
42°. The ray of light reflects off mirror B and then enters water, as shown below:
Incident
ray at A
Note: This diagram is not to
scale.
a
Air (n = 1.00)
Water (n = 1.34)
1) Determine the angle of refraction of the ray of light in the water.
B
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Chapter 4 Solutions
College Physics Volume 1 (Chs. 1-16); Mastering Physics with Pearson eText -- ValuePack Access Card -- for College Physics (10th Edition)
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