Homework Help: physics

Posted by D on Wednesday, October 3, 2012 at 11:42pm.

A 5.9-kg rock and a 3.0 10-4-kg pebble are held near the surface of the earth.
(a) Determine the magnitude of the gravitational force exerted on each by the earth.(b) Calculate the magnitude of the acceleration of each object when released.

physics - Elena, Thursday, October 4, 2012 at 4:44pm
(a) F =G•m •M/R²
the gravitational constant G =6.67•10^-11 N•m²/kg²,
Earth’s mass is M = 5.97•10^24 kg,
Earth’s radius is R = 6.378•10^6 m.

(b) g= G•M/R²

Answer this Question

Related Questions

Physics - When out in space in International Space Station (ISS), Astronauts ...
Physics - A 14 kg rock starting from rest free falls through a distance of 5.0 m...
physics - 9. The surface of the earth is approximately 6,400 km from its center...
Physics...Help!!! - given that Earth's surface gravitaitional field strength...
Physics - A satellite moves in a circular orbit around the Earth at a speed of ...
physics - a 100 kg boulder is placed under the surface of water. its volume is 0...
physics - 3. A satellite of mass 500 kg orbits the Earth with a period of 6000 s...
Physics - What is the gravitional potential energy of a 100-kg rocket when it is...
physics - Using Newton's Law of Universal Gravitation, compare the weight of...
physics - Using Newton's Law of Universal Gravitation, compare the weight of...

For Further Reading

First Name:
School Subject:
Answer: