Essential Cosmic Perspective
Essential Cosmic Perspective
9th Edition
ISBN: 9780135795033
Author: Bennett
Publisher: PEARSON
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Chapter 4, Problem 1VSC
To determine

To explain:

Representation of three black arrows in the given figure.

Expert Solution & Answer
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Answer to Problem 1VSC

Solution: option (b) is correct.

Explanation of Solution

In the given figure, shows the gravitational pull of the moon on earth which gives rise to tides. The North Pole is at center in the given figure and the points are along the circumference of the equator.

So, in the figure, the black arrows represent the gravitational pull of the moon on the earth. The length of the arrow denotes the strength of gravitational pull. Since, the arrow is long at point 1, which is closest to the moon for which the pull is maximum at point 1. The pull is minimum at point 3, so there is least gravitational pull.

Hence, the moon’s gravitational force is different at different points on earth.

Conclusion:

Therefore, option (b) is correct.

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Chapter 4 Solutions

Essential Cosmic Perspective

Ch. 4 - Define kinetic energy, radiative energy, and...Ch. 4 - Define and distinguish temperature and thermal...Ch. 4 - Prob. 8EAPCh. 4 - Summarize the universal law of gravitation both in...Ch. 4 - What is the difference between a bound and an...Ch. 4 - Under what conditions can we use Newton’s version...Ch. 4 - Explain why orbits cannot change spontaneously,...Ch. 4 - Explain how the Moon creates tides on Earth. Why...Ch. 4 - How do the tides vary with the phase of the Moon?...Ch. 4 - Decide whether the statement makes sense (or is...Ch. 4 - Decide whether the statement makes sense (or is...Ch. 4 - Decide whether the statement makes sense (or is...Ch. 4 - Decide whether the statement makes sense (or is...Ch. 4 - Decide whether the statement makes sense (or is...Ch. 4 - Decide whether the statement makes sense (or is...Ch. 4 - Decide whether the statement makes sense (or is...Ch. 4 - Decide whether the statement makes sense (or is...Ch. 4 - Decide whether the statement makes sense (or is...Ch. 4 - Decide whether the statement makes sense (or is...Ch. 4 - A car is accelerating when it is (a) traveling on...Ch. 4 - Compared to their values on Earth, on another...Ch. 4 - Which person is weightless? (a) a child in the air...Ch. 4 - Consider the statement “There’s no gravity in...Ch. 4 - To make a rocket turn left, you need to (a) fire...Ch. 4 - Compared to its angular momentum when it is...Ch. 4 - Prob. 31EAPCh. 4 - If Earth were twice as far from the Sun, the force...Ch. 4 - According to the law of universal gravitation,...Ch. 4 - If the Moon were closer to Earth, high tides would...Ch. 4 - Prob. 35EAPCh. 4 - Testing Gravity. Scientists are constantly trying...Ch. 4 - How Does the Table Know? Thinking deeply about...Ch. 4 - Perpetual Motion Machines. Every so often, someone...Ch. 4 - Group Activity: Your Ultimate Energy Source. Work...Ch. 4 - Weightlessness. Astronauts are weightless when in...Ch. 4 - Einstein’s Famous Formula. a. What is the meaning...Ch. 4 - The Gravitational Law. a. How does quadrupling the...Ch. 4 - Prob. 44EAPCh. 4 - Head to Foot Tides. You and Earth attract each...Ch. 4 - Space Elevator. Some people have proposed using a...Ch. 4 - Prob. 47EAPCh. 4 - Prob. 48EAPCh. 4 - Prob. 49EAPCh. 4 - Prob. 50EAP
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