A100 m cable is stretched from the ground to the top of a pole. if the angle of the cable with the ground is 10 degrees, how high is the pole?
a. 17.4 m
b. 90 m
c. 98.5 m
d. 110 m

Most of the volume of an atom is occupied by the

Which of the following list the divisions of the geologic time scale in order from longest to shortest

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