An athlete completes 4 laps around a track with a radius of 25 meters in 12 minutes(720 seconds). What is tye magnitude of the athlete's tangential velocity? Hint: to answer correctly, "time" must be solved for 1 lap and the SI unit for velocity is (m/s).

The key to stability is feedback between the reservoir and the fluxes into and/or out of the reservoir. assume that the rate of outflow from a reservoir depends on the size of the reservoir according to the following relationship: outflow rate= k x (size of reservoir), where k is a constant. a reservoir of water has a volume of 5000 liters, and the rate of outflow at steady state is 25 liters per minute. what is k? (give both the numerical value and its units.) what is the residence time? what is the relationship between k and the residence time?

Aria drove to the store, did some shopping, and then came home. during maria's trip, when was her displacement equal to zero?

Aboy with a mass 25 kg climbs into a small tree. he sits on a branch that is 2.o m above to the ground. what is his gravitational potential energy above the ground?