Wednesday
April 23, 2014

Homework Help: phy.

Posted by Julie on Tuesday, October 16, 2007 at 9:33pm.

Larry weighs 300 N at the surface of the earth. what is the weight of the earth in the gravitational field of Larry?
-force= GMm/d^2
would i set it up like force= (9.8m/s^2)(300 N)?

an astronaut lands on a planet that has twice the mass as earth and twice the diameter. how does the astronaut weight differ from that on earth? (this one i dont get still)

if the moon pulls the earth as strongly as the earth pulls the moon, why doesnt the earth rotate around the moon, or why dont both rotate around a point midway between them?
-the earth doesnt rotate around the moon because the moon is not center of gravity and they both dont rotate around a point midway between them because of the center of gravity.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

phy. - check my understanding please. Larry weighs 300 N at the surface of the ...
physics help - Larry weighs 300 N at the surface of the earth. what is the ...
physics - Joe has a weight of 850 N (about 193 lb) when he is standing on the ...
Physics - a. 2 objects each of mass 200 kg and 500 kg are separated by 50 cm. ...
Physics - When the space shuttle (mass of the shuttle = 2 x10^6 kg) was at the ...
Physics - I've been stuck on this equation for a while and I don't know if i'm ...
Algebra - The gravitational force between an object & the Earth is inversely ...
phy - What is the distance from the Earth's center to a point outside the Earth ...
Physics - Given that the Earth's radius is 6.37x10^6 m and taking the earth's ...
physics - Which of the following best describes the strength of the ...

Search
Members