Kevin completes his morning workout at the pool. he swims 4.00 × 10 3 m (80 laps in the 50.0-m-long pool) in 1.00 h. (a) what is the average velocity of kevin during his workout? (b) what is his average speed? (c) with a burst of speed, kevin swims one 25.0-m stretch in 9.27 s. what is kevin’s average speed over those 25 m?

Two particles of masses m and 2m are placed on a smooth horizontal table. a string, which joins these two masses, hangs over the edge supporting a pulley, which suspends a particle of mass 3m.the pulley has negligible mass. the two parts of the string on the table are parallel and perpendicular to the edge of the table. the hanging parts of the string are vertical. find the acceleration of the particle of mass 3m.

Aball horizontally thrown from a cliff at 8m/s

Atank is filled with an ideal gas at 400 k and pressure of 1.00 atm . part a the tank is heated until the pressure of the gas in the tank doubles. what is the temperature of the gas?