Understanding Our Universe
3rd Edition
ISBN: 9780393614428
Author: PALEN, Stacy, Kay, Laura, Blumenthal, George (george Ray)
Publisher: W.w. Norton & Company,
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Chapter 3.3, Problem 3.3CYU
To determine
The speed of coffee with respect to the given frame of references.
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An observer standing on the platform at a train station watches a train pass by. Through the windows, the observer on the platform can see a passenger moving inside the
train. Rank the following situations from fastest to slowest relative speed for the observer and passenger. The speed and direction of the passenger is given compared to the
floor of the train. (Use only ">" or "=" symbols. Do not include any parentheses around the letters or symbols.)
%3D
A. Train moves 19.0 mph east; passenger moves 8.00 mph east.
B. Train moves 21.0 mph east; passenger moves 8.00 mph west.
C. Train moves 17.0 mph east; passenger moves 9.00 mph east.
D. Train moves 20.0 mph east; passenger is at rest (not moving).
1. Taking north as positive and south as negative for all reference frames, suppose Mayor Adams is
riding a southbound train to New York City traveling at 40 m/s relative to the ground, while
Governor Hochul is riding a northbound train to Albany at 33 m/s relative to the ground.
A) What is the velocity of Mayor Adams in Governor Hochul's reference frame (i.e. in the
reference frame where Governor Hochul isn't moving)?
B) What is the velocity of Governor Hochul in Mayor Adams reference frame?
C) To his surprise Mayor Adams observes a groundhog running along the aisle towards the back
of the train with a speed of 2 m/s relative to the train. What is the velocity of the groundhog
in Governor Hochul's reference frame?
D) What is the groundhog's velocity in the reference frame of someone standing at the train
station?
E) What is its velocity in Mayor Adams's reference frame?
F) What is its velocity in the groundhog's frame?
30
10 ft.
5 ft.
15 ft.
please help: A lighthouse sweeps its beam of light around in a circle once every 7.6 s. To an observer in a spaceship moving away from Earth, the beam of light completes one full circle every 16 s.
What is the speed of the spaceship relative to Earth?
Express your answer using two significant figures.
Chapter 3 Solutions
Understanding Our Universe
Ch. 3.1 - Prob. 3.1CYUCh. 3.2 - Prob. 3.2CYUCh. 3.3 - Prob. 3.3CYUCh. 3.4 - Prob. 3.4CYUCh. 3.5 - Prob. 3.5CYUCh. 3 - Prob. 1QAPCh. 3 - Prob. 2QAPCh. 3 - Prob. 3QAPCh. 3 - Prob. 4QAPCh. 3 - Prob. 5QAP
Ch. 3 - Prob. 6QAPCh. 3 - Prob. 7QAPCh. 3 - Prob. 8QAPCh. 3 - Prob. 9QAPCh. 3 - Prob. 10QAPCh. 3 - Prob. 11QAPCh. 3 - Prob. 12QAPCh. 3 - Prob. 13QAPCh. 3 - Prob. 14QAPCh. 3 - Prob. 15QAPCh. 3 - Prob. 16QAPCh. 3 - Prob. 17QAPCh. 3 - Prob. 18QAPCh. 3 - Prob. 19QAPCh. 3 - Prob. 20QAPCh. 3 - Prob. 21QAPCh. 3 - Prob. 22QAPCh. 3 - Prob. 23QAPCh. 3 - Prob. 24QAPCh. 3 - Prob. 25QAPCh. 3 - Prob. 26QAPCh. 3 - Prob. 27QAPCh. 3 - Prob. 28QAPCh. 3 - Prob. 29QAPCh. 3 - Prob. 30QAPCh. 3 - Prob. 31QAPCh. 3 - Prob. 32QAPCh. 3 - Prob. 33QAPCh. 3 - Prob. 34QAPCh. 3 - Prob. 35QAPCh. 3 - Prob. 36QAPCh. 3 - Prob. 37QAPCh. 3 - Prob. 38QAPCh. 3 - Prob. 39QAPCh. 3 - Prob. 40QAPCh. 3 - Prob. 41QAPCh. 3 - Prob. 42QAPCh. 3 - Prob. 43QAPCh. 3 - Prob. 44QAPCh. 3 - Prob. 45QAP
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