Friday

December 19, 2014

December 19, 2014

Posted by **Kelly K.** on Monday, June 11, 2007 at 1:03pm.

(a) How much energy is required to change the separation between the centers of the basketballs to 1.0 m?

(b) How much energy is required to change the separation between the centers of the basketballs to 10 m?

Our teacher has not even talked about this and the chapter that we are working on deals with gravitational force and G. Can anyone tell me an equation to use or a theory? thank you

The gravitation energy will be

assuming you know calculus...

INT force*distance

INT GMM/x^2 dx = GMM/x eval at changes.

Energy= G(.55)^2 ( 1/.15 - 1/d) where d is the new separation.

If you don't understand the calculus involved, just use the result.

I used (2/3)x10^-10 for G and got1.14e-10. This assignment is on-line, so I get instant feed back and this answer was incorrect.

- physics -
**Rene**, Monday, January 3, 2011 at 1:55pmChairs in an orbiting spacecraft are weightless. I you were on board and you were barefoot, would you stub your toe if you kicked a chair?

- physics (Rene question) -
**drwls**, Monday, November 26, 2012 at 12:21amYes

**Answer this Question**

**Related Questions**

Physics - Two 0.53-g basketballs, each with a radius of 17 cm, are just touching...

PHYICS - Two 0.64 kg basketballs, each with a radius of 13 cm, are just touching...

physics - Two 0.61 kg basketballs, each with a radius of 13 cm, are just ...

Physics - Two identical 19.8-kg spheres of radius 12 cm are 29.2 cm apart (...

Physics - Two identical 21.2-kg spheres of radius 12 cm are 30.6 cm apart (...

Physics - Two identical 21.6-kg spheres of radius 14 cm are 31.0 cm apart (...

physics - A 0.720 kg snowball is fired from a cliff 8.10 m high. The snowball's ...

physics - (a) What is the gravitational potential energy of a two-particle ...

Physics-Gravitation - What is the gravitational potential energy of a two-...

Physic - Two softballs, each with a mass of 0.125 kg, are separated by a ...