If you start out with a 136 gram sample of Plutonium that has a half life of 8 days, how much will be left after 32 days?

Calculate the amount of heat produced when 18000 coulombs of charge is transferred in one hour through a potential difference of 50v

If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?

You are driving directly behind a pickup truck, going at the same speed as the truck. a crate falls from the bed of the truck to the road. (a) will your car hit the crate before the crate hits the road if you neither brake nor swerve? (b) during the fall, is the horizontal speed of the crate more than, less than, or the same as that of the truck?