A majorette fastens two batons together at their centers toform an X shape. Each baton consists of an extremely light 1.2-m bar with small0.25-kg balls at each end. What is the moment of inertia of this baton about anaxis through the center of the X?

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