Q. A 1.60 m wide, 1.50 m high, 1300 kg car hits a very slick patch of ice while going 20.0 m/s. Air resistance is not negligible. If friction is neglected, how long will it take until the car's speed drops to 16.0 m/s?
Q. A container of volume 0.30 m3 contains 3.0 mol of argon gas at 31°C. Assuming argon behaves as an ideal gas, find the total internal energy of the gas.