I was wondering if anyone knew what an explosion would look like in a vacuum? Theoretically let's say if something blew up in space. I was just curious because Hollywood sometimes still makes it look like an explosion on Earth but it should not be, right?
Ahh! I think that is what I needed. If 2sin(x)cos(x)=sin(2x) then I can multiply both sides by 2 which gives 2f(t)=2sin(\betat)cos(\betat). After, just carry the 2 over so you get f(t)=(1/2)sin(2\betat). Thanks man!
Homework Statement
Simplify this expression:
f(t) = sin(\betat)*cos(\betat)
Homework Equations
Identities
The Attempt at a Solution
I started out by doing sin(\betat)*sin(\betat+\pi/2) but I can't go anywhere from there. If I use the sin(a+b) formula it brings me back to the original...
1. A crate resting on a rough horizontal floor is to be moved horizontally. The coefficient of kinetic friction is 0.40. To start the crate moving with the least possible applied force, in what direction should the force be applied?
a. Horizontal
b. 24 degrees below horizontal
c. 22...