If a 79.6 kg dancer stands on one toe, what is the magnitude of pressure exerted on that toe to support his weight?

(Magnitude only! No negative numbers)

*Assume that tip of the dancer's toe has a radius of 0.02 m and has a circular area of contact.

Area of a circle= pi r squared

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