Two objects of the same mass move along the same line in opposite directions. the first mass is moving with speed . the objects collide, stick together, and move with speed 0.100 in the direction of the velocity of the first mass before the collision. what was the speed of the second mass before the collision?
a. 0.00
b. 0.800
c. 0.900
d. 10.0
e. 1.20

How do you tell if someone actually cares about you? and just say they do?

Abag of potato chips contains 2.00 l of air when it is sealed at sea level at a pressure of 1.00 atm and a temperature of 20.0 deg c. what will be the volume of the air in the bag if you take it with you, still sealed, to the mountains where the temperature is 7.00 deg c and atmospheric pressure is 70.0 kpa? assume that the bag behaves like a balloon and that the air in the bag is in thermal equilibrium with the outside air.

What energy transformations occur each time the skateboarder rolls up the ramp?