Recent content by phyzwiz69

Thanks it makes a lot more sense now!

1. Suppose you are on the bank of a river at night. Opposite you on the other bank is a street light. You have a sensitive light meter and a meter stick. How wold you determine the distance across the river?

Homework Statement A frictionless puck of mass m slides down a ramp with considerable speed. You wish to slow it down by having it collide (not necessarily head-on) with other pucks at rest with as few collisions as possible. What mass would you choose for the pucks at rest? (The same physics...

Homework Statement A rapidly moving body of mass m1 strikes a body of mass m2 at rest in a head-on elastic collision. How does m1 compare with m2 if the first body (m1) a. stops? b. comes back along its path at very nearly the same speed it had before the collision? c. continues along in...