Recent content by klmdad

Ok I think I have it the energy is transferred from the source in the form of longitudinal sound waves

My question is what is the evidence that sound is a form of energy?

My Question is what 3 things are necessary for a function to be continuous at c? I have Right hand must exist, left hand must exist and right and left hands must be equal. I was told that this is worng.

Watts per squ meter?

where I am having problems with is what was the total power passing through an area of 5.0 m^2 at a distance of 4.0 km. I don't see how to work the problem.

Can you work this out step by step so I can see how to do it. Thank you h(t) = (t^4 - 1)^3(t^3+1)^4

since the motion is vertical, we use y instead of x (y positive upward). We divide this soution into two parts. 0.5mv1^2 + mgy1 = 0.5mv2^2 + mgy2 0 + mgh = 0.5mv2^2 + 0 v2 = squ root2gh)

I'm still trying to understand your reply to my Question. If this will helps you to help me it has to do with energy transported by waves. As the wave moves outward, the energy it carries is spread over a larger and larger area since the surface area of asphere of radius r is 4pir^2. Thus the...

:confused: The internsity of a particular earthquake wave is measured to be 2.2 * 10^6 W/m^2 at a distance of 100km from the source. Now here is the part that I'm lost. What was the intensity when it passed a point only 4.0km from the source? And what was the total power passing through an area...