Wednesday
April 16, 2014

Homework Help: Physics

Posted by Sandhya on Wednesday, April 22, 2009 at 10:35pm.

1. Planet X orbits the sun with a mean orbital radius that is 6200 times that of earth. Its diameter is twice that of earth, and its mass is 8 times that of earth.

A) Calculate the year of the planet X.
B) Calculate the acceleration due to gravity on planet X.
C) Calculate the gravitational field of the sun (acceleration due to the sunís gravity) at Planet X.

2. A horizontal spring is compressed a distance 8cm from is equilibrium position and released against a ball of mass 50 g which is propelled away from the spring at 5 ms-1.

A) Calculate the spring constant.
B) Calculate the work in compressing the spring.

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