Two people are pulling up on ropes wrapped around the edge of a large wheel. the wheel has a mass of 12kg and a diameter of 2.4m one person pulls in a clockwise direction with a 43n force while the other pulls in a counterclockwise direction with a 67n force. what is the net torque on the wheel

Using a pedometer, you walk 3000 steps in 20 minutes, so your speed is 150 steps/min. each of your steps is 0.7 m long. what is your speed? 150 steps/min=/s=/h

An ideal otto cycle has a compression ratio of 8. at the beginning of the compression process, air is at 95 kpa and 27°c, and 750 kj/kg of heat is transferred to air during the constant-volume heat-addition process. assuming constant specific heats at room temperature, determine (a) the pressure and temperature at the end of the heat-addition process, (b) the net work output, (c) the thermal efficiency, and (d) the mean effective pressure for the cycle. (4390 kpa, 1730 k; 423 kj/kg; 56.4%; 534 kpa)

If you let go of the notebook after lifting it, will it move? how?