Recent content by Deceit

Ah ok; yes that makes complete sense Thanks for pointing that out :)

I'm trying to rearrange this equation to isolate r2: 1/2(m2)(v)^2 = [-(G)(m2)(m1)] / (r2) - [-(G)(m2)(m1)] / (r1) Eliminating m2: 1/2(v)^2 = [-(G)(m1)] / (r2) - [-(G)(m1)] / (r1) Some swapping around the equal sign: [(G)(m1)] / (r2) = [(G)(m1)] / (r1) - 1/2(v)^2 Dividing everything by...

Thanks cepheid! That really helped me understand the problem better. Now here's my attempt at a solution: p(i) = v(m1 + m2) (the two craft have the same velocity at this point) p(f) = m1v1 + m2v2 p(i) = p(f) p(f) = (19000kg)(972 m/s) + (17000kg)(944 m/s) p(f) = 3.45 x 10^7 kg m/s p(i) =...

But even though their momentums are different, they should still have the same velocity along the x component, right?

Homework Statement This question is from a correspondence course I'm taking: Two spacecraft from different nations have linked in space and are coasting with their engines off, heading directly toward Mars. The spacecraft s are thrust apart by large springs. Spacecraft 1, with a mass of...

According to the book, any trailing zeros without a decimal place are not considered significant. But, I guess it really doesn't make sense to only use one sig dig in this case, so I'll consider the zeros significant. Thanks for the help

The first part of the question did ask for the magnitude of the applied force. As for the significant digits, the question gave values of 50kg and 60m, each of which would technically only have one significant digit, no? Thanks for the reply

Homework Statement This is from a book for a correspondence course I'm taking. I don't have access to teachers, so hopefully some of you can fill that role :) A parent is pulling a wagon. The child and the wagon have a combined mass of 50kg and the adult does 2.2 x 10^3 J of work...