A fan, connected to a big pulley, is driven by a belt from a motor attached to a small pulley. The motor pulley is 3 in. in diameter, and the fan pulley is 12 in. At what speed does the motor rotate if the fan is rotating at 450 rpm?

14 In single degree of freedom systems, a. On b. On C. On d. o, = 2 o.

Your bicycle has 10 gears, from low (easiest to pedal) to high (hardest to pedal). When you first start peddling, you usually use a low gear to accelerate from standing and then shift to a higher gear when you are at a high cruising (ground) speed so that you are always pedalling against the same resistance. One morning you forget to shift down and you try to start in a very high gear. Despite the fact that you usually go fast in high gear, you can't get anywhere at all. The next day you remember to start in low gear, but you forget to shift up. So you ride to school at the same ground speed as usual but in low gear all the way. Despite the fact that there is less resistance to pedalling in the low gear, your legs get more tired than usual.  Using you knowledge of force and resistance explain why they are more tired? Explain which skeletal fibers will be utilized in this case?

A motor with frame size 184T has a distance from the base to the shaft center of

The bore on a cylinder of a compressor is 2 inches. The stroke is 3 inches.What is the displacement of the compressor?

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Please solve and answer the question correctly. Thank you!!

A motor has pinion gear with 14 teeth and is meshed with a gear with 52 teeth. The gear is attached to a shaft that drives an 85mm diameter wheel. If the motor spins at 1750rpm’s, what is the speed of the vehicle in ?/??

The drum of a winch system is rotating at 294 RPM and the drum has a diameter of 8 inches. What is the linear speed at the surface of the drum in feet/sec? This is the same speed at which the cable of the winch is pulled in.

Calculate the helicopter rotor blade’s rotational speed.