The document presents problems related to universal gravitation, involving the calculation of gravitational force between two students based on their masses and distance apart. It also includes a question regarding the gravitational force between two larger masses and a calculation of gravitational force acting on an object at a significant height above the Earth's surface. Key values mentioned include the masses of the objects and the gravitational forces involved.

1. Universal Gravitation

6. 3. Two students are sitting 1.5 m apart. One student has a
mass of 70 kg and the other has a mass of 52 kg. what us

7. 4. If two objects,each with a mass of 2.0x102
kg produce a
gravitational force between them of 3.7x106
N. What is the distance
between them?

8. Calculate the gravitational force on 6.50x102
kg that is
4.15 x106
m above the surface of Earth? R=1.053x107
m