Recent content by aliciagu

So in the second one, the displacement would be 2A, because the sum of the 2 diplacements is (in this case) .300?

Homework Statement A series of pulses, each with an amplitude of .150 m are sent down a string that is attached to a post at one end. The pulses are reflected back and travel back along the string with no loss of amplitude. What is the net displacement of an element at a point on the string...

That answers it! I knew I was missing something stupid!

Out of ideas, and frustrated! Homework Statement A ball dropped from a height of 4.00 m makes an elastic collision with the grond. Assume that no mechanical energy is lost due to air resistance. Determine the period of the motion Homework Equations I know the period (T) = the time...

Homework Statement Is the daily movement of a student from home to school and back simple harmonic motion? Homework Equations The Attempt at a Solution I don't think it is. This type of movement is linear. It involves distance, speed and so on. It does not follow a sinusoidal...

Thanks! That got me started. I don't know where my head is at today! I think I've got the rest.

I am in deperate need of help! Physics The question: after our sun exhausts its nuclear fuel, its ulitmate fate may be to collapse to a white dwarf state, in which it has approximately the same mass as it has now but a radius equal to the radius of the earth. Calculate: The average density...