If you were able to measure the motion of all particles of a sample anf you used this data to find the avereage you would be actually

Arock is dropped from a cliff and reaches the ground in 2.70s. at the same time another rock is thrown horizontally from the same height with initial x velocity of 0.95 m/s. what distance will in x will the second rock cover?

Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is

In which of the following would the particles move most rapidly? a. ice at -20 °c b. water at 20 °c c. steam at 110 °c d. boiling water e. ice at 0 °c