Coil a of radius 3.37 m lies in the xy-plane, with its center at the origin. coil b of radius 5.61 cm is perpendicular to the z-axis with its center on the z-axis. coil a has a current of 6.35 a and is fixed in place. coil b is moving towards coil a along the +z-axis at 4.27 m/s. estimate the e induced in coil b at the moment it passes through the origin. take counterclockwise as viewed from the +z-axis as positive. answer in units of v.

A75-hp (shaft output) motor that has an efficiency of 91.0 percent is worn out and is to be replaced by a high-efficiency motor that has an efficiency of 95.4 percent. the motor operates 4368 hours a year at a load factor of 0.75. taking the cost of electricity to be $0.12/kwh, determine the amount of energy and money saved as a result of installing the high-efficiency motor instead of the standard motor. also, determine the simple payback period if the pu