Luna traveled 340 km at an average speed of 78 km/h. Ron took 1.4 hours more to go the same distance. What was Ron’s average speed for the whole trip? Show your work.

Examine the equation. 23490th→23088ra+42he what kind of barrier would you need to block the radioactive particles from this reaction? a. a piece of paper b. a sheet of aluminum foil c. a two-inch block of lead d. a solid concrete block

How would a small bar magnet be oriented when placed at position x?

If the spring constant k of a pogo stick is 3500 n m and the weight of the person on the pogo stick is 700 n, how much is the spring in the botom of the pogo stick compressed?