The average speed of a perfume vapor molecule at room temperature is about 300 m/s, but you find the speed at which the scent travels across the room is much less than that. Explain why this is so.

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?

Match each scenario to the form of energy it represents

Choose a realistic problem for which these are the correct freebody diagrams. be sure that the answer that the problem requests is consistent with the diagrams shown. choose a realistic problem for which these are the correct freebody diagrams. be sure that the answer that the problem requests is consistent with the diagrams shown. a 1.0 kg block is placed on top of a 2.0 kg block. a horizontal rope pulls the 2.0 kg block across a frictionless floor with a force of 21.0 n. the coefficient between the two blocks is 0.75. does the 1.0 kg block on top slide?