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A 15 kg block is accelerated at 1.7 m/s2 up a frictionless plane inclined at 5.0° to the horizontal, with the speed increasing from 10 m/s to 35 m/s.
(a) What is the change in the block's mechanical energy?
J
(b) What is the average rate at which energy is transferred to the block?
W
(c) What is the instantaneous rate of that transfer when the block's speed is 10 m/s?
(d) What is the instantaneous rate of that transfer when the block's speed is 35 m/s?
An emf of 22.0 mV is induced in a 497 turn coil when the current is changing at a rate of 9.0 A/s. What is the magnetic flux through each turn of the coil
What is the total work W_fric completed on the block by the force of friction as the block moves a distance 8 rm m up the incline.
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