Predict: Suppose a cart with no fans has a starting velocity of 2 m/s. What will be the velocity of the cart when it reaches the wall?

Hydrogen and helium are both members of?

Aweather balloon has a volume of 52.5 liters at a temperature of 252 k. the balloon is released and rises to an altitude where the temperature is 295 k. how does this temperature change affect the gas particle motion?

One charge is decreased to one-third of its original value, and a second charge is decreased to one-half of its original value. how will the electrical force between the charges compare with the original force? a- it will increase to six times the original force. b- it will increase to thirty-six times the original force. c- it will decrease to one-sixth the original force. d- it will decrease to one-thirty-sixth the original force.