Explanation Given info: Mass of balls is 7.26 kg , the radius of the balls is 10.8 cm . The universal gravitational constant is 6.67 × 10 − 11 N ⋅ m 2 / kg 2 . The balls are in contact with each other, thus the distance between the centers of balls is two times their radius, which is 21.6 cm . The formula for gravitational potential energy is, U = − G m m r (1) Here, U is the gravitational potential energy m is mass of ball r is the distance between centers of balls. G is the universal gravitational constant Substitute 6.67 × 10 − 11 N ⋅ m 2 / kg 2 for G , 21.6 cm for r , 7.26 kg for m in the above expression. U = − ( 6.67 × 10 − 11 N ⋅ m 2 / kg 2 ) ( 7

5th Edition

ISBN: 9780134051802

Author: Walker

Publisher: PEARSON

See similar textbooks

Concept explainers

Central Force

Central force is the force that acts along the center of mass of one body to the center of mass of another body. Its direction from or away from a point on a body to another is called the center of the force. Such forces include gravitational force betwe…

Question

Chapter 12, Problem 41PCE

To determine

The total gravitational potential energy of the system.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Chapter 12, Problem 40PCE

Chapter 12, Problem 42PCE

Students have asked these similar questions

1. The diagram shows the tube used in the Thomson experiment. a. State the KE of the electrons. b. Draw the path of the electron beam in the gravitational field of the earth. C. If the electric field directed upwards, deduce the direction of the magnetic field so it would be possible to balance the forces. electron gun 1KV

as a hiker in glacier national park, you need to keep the bears from getting at your food supply. You find a campground that is near an outcropping of ice. Part of the outcropping forms a feta=51.5* slopeup that leads to a verticle cliff. You decide that this is an idea place to hang your food supply out of bear reach. You put all of your food into a burlap sack, tie a rope to the sack, and then tie a bag full of rocks to the other end of the rope to act as an anchor. You currently have 18.5 kg of food left for the rest of your trip, so you put 18.5 kg of rocks in the anchor bag to balance it out. what happens when you lower the food bag over the edge and let go of the anchor bag? Determine the acceleration magnitude a of the two-bag system when you let go of the anchor bag?

2. A thin Nichrome wire is used in an experiment to test Ohm's law using a power supply ranging from 0 to 12 V in steps of 2 V. Why isn't the graph of I vs V linear? 1. Nichrome wire does obey Ohm's law. Explain how that can that be true given the results above

Chapter 12 Solutions

Physics (5th Edition)

Ch. 12.1 - Rank the four systems shown in Figure 12-6 in...Ch. 12.2 - Suppose the Sun suddenly collapsed to half its...Ch. 12.3 - Satellite A orbits the Earth at the radius r,...Ch. 12.4 - Prob. 4EYU Ch. 12.5 - Prob. 5EYU Ch. 12.6 - If the radius of the Moons orbit around the Earth...Ch. 12 - It is often said that astronauts in orbit...Ch. 12 - When a person passes you on the street, you do not...Ch. 12 - Imagine bringing the tips of your index fingers...Ch. 12 - Does the radius vector of Mars sweep out the same...

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

The total gravitational potential energy of the system.

Solution Summary: The author explains the total gravitational potential energy of the system, which is -48.8nJ

Concept explainers

The total gravitational potential energy of the system.

Want to see the full answer?

Chapter 12 Solutions