Newton’s law of universal gravitation states that every object exerts a gravitational force on every other object in the universe. (a) Estimate magnitude of the gravitational force that the person sitting next to you in class exerts on your body, in units of Newtons. (b) Given your previous answer, what is the gravitational force that you exert on the person sitting next to you? (c) Compare your previous answers to your weight (the force of gravity the Earth exerts on you).

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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Newton’s law of universal gravitation states that every object exerts a gravitational
force on every other object in the universe.
(a) Estimate magnitude of the gravitational force that the person sitting next to
you in class exerts on your body, in units of Newtons.
(b) Given your previous answer, what is the gravitational force that you exert on
the person sitting next to you?
(c) Compare your previous answers to your weight (the force of gravity the
Earth exerts on you).  

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