Pls answer !

if the equation fm=k m1m1/d1 fm represents:

a) the magnetic field
b) the magnetic flux
c) the magnetic force
d) the proportionality factor

Does the asteroid belt revolve around the sun?

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

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