8. Centripetal Forces & Gravitation

Newton's Law of Gravity

Newton's Law of Universal Gravitation

AP Physics 1: Universal Gravitation Review

Find force between spheres with radii

Newton's Law of Universal Gravitation by Professor Mac

-7.32×10-4 N (toward 300kg sphere)

-1.62×10-4 N (toward 300kg sphere)

7.32×10-4 N (toward 500kg sphere)

1.62×10-4 N (toward 500kg sphere)

Two spheres of mass 300 kg and 500 kg are placed in a line 20 cm apart. If another sphere of mass 200 kg is placed between them, 8 cm from the 300 kg sphere, what is the net gravitational force on the 200 kg sphere?

Center of Mass Distance

Gravity, Universal Gravitation Constant - Gravitational Force Between Earth, Moon & Sun, Physics

Where is Net Force on middle object zero?

Two uniform spheres, each with mass M and radius R, touch each other. What is the magnitude of their gravitational force of attraction?

A 2,000-kg spacecraft is blasting away from the surface of an unknown planet the same size as the Earth. At 1500km above the surface, an instrument onboard reads the gravitational force to be 18000 N. What is the planet’s mass?

What is the ratio of the sun’s gravitational force on you to the earth’s gravitational force on you?

A typical adult human has a mass of about 70 kg. (a) What force does a full moon exert on such a human when it is directly overhead with its center 378,000 km away? (b) Compare this force with the force exerted on the human by the earth

Anderson Video - Dropping a Rock on Mars

Anderson Video - Gravity at Altitude

Find the magnitude and direction of the net gravitational force on mass A due to masses B and C in Fig. E13.6<img src="https://lightcat-files.s3.amazonaws.com/problem_images/9176f134becc5064-round.png" alt="" />. Each mass is 2.00 kg.<img class="fr-dib" src="https://lightcat-files.s3.amazonaws.com/problem_images/05f14e51ea277dc9-1678284824770.jpg" style="width: 300px;">

Anderson Video - Weight on Earth vs Moon

Universal Law of Gravitation

Anderson Video - Newton's Big G and Earth's Little g

The point masses m and 2m lie along the x-axis, with m at the origin and 2m at x = L. A third point mass M is moved along the x-axis. (a) At what point is the net gravitational force on M due to the other two masses equal to zero?

Newton’s law of gravitation explained

Anderson Video - Newton's Universal Gravitation

Anderson Video - Difference Between the Sun and Earth's Gravity

12.2 Angular Momentum and Orbital Motion

Anderson Video - Gravity at the Center of the Earth

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