31. As an object slides across a rough horizontal surface, what happens to the object's gravitational potential energy with respect to the surface and speed?
31. As an object slides across a rough horizontal surface, what happens to the object's gravitational potential energy with respect to the surface and speed?
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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please help with these questions 31,32, and 33, correct answers please
Transcribed Image Text:31. As an object slides across a rough horizontal
surface, what happens to the object's
gravitational potential energy with
respect to the surface and speed? ,
(1) Both gravitational potential energy and
speed decrease.
(2) Gravitational potential energy decreases and
speed remains the same.
(3) Gravitational potential energy remains the
same and speed decreases.
(4) Both gravitational potential energy and
speed remain the same.
32. The diagram below represents a cart traveling
with initial speed v from left to right along a
frictionless surface.
Earth's surface
At which point is the gravitational potential
energy of the cart least?
(1) A
(3) C
33. Calculate the gravitational potential energy
with respect to Earth's surface gained by a
5.00-kilogram mass as a result of being raised
2.00 meters from Earth's surface.
(2) B
(4) D
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