Suppose block 1 is moving to the left at 2.50m/s at time 0.
a) find when the block
momentomily stops.
b) determine whether
or not the block
reverses direction.

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?

Which is not an example of how an object gains elastic potential energy by stretching? a. jumping on a pogo stick b. pulling on a rubber band c. jumping on a trampoline

Select for each of the following statements whether it is correct or incorrect. (a) in an isothermal expansion of an ideal gas. (b) the temperature remains constant. (b) the pressure remains constant. (c) there is work done by the gas. (d) there is heat added to the gas. (e) the change in internal energy equals zero.