Two identical 0.25kg balls are involved in a head on elastic collision. Ball A is initially traveling at 3.5 M/S and Ball B is initially at rest. A) Describe what will happen when the balls collide.

B) Calculate the momentum of Ball A before the collision.

C) Calculate the total momentum after the collision.

D) Determine the velocity of each Ball after the collision.

Afixed electric space heater wired by a cable with an ampacity of 30 a should draw a maximum current of a. 30 a. b. 24 a. c. 15 a. d. 27 a.

What is the measure of a change in an objects velocity?

Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length of a column of water 1.00 km high for a temperature increase of 1.00ºc. note that this calculation is only approximate because ocean warming is not uniform with depth. (answer in ×10^{-3} −3 m)