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Engineering Physics
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A motor lifts a 950-kg load vertically by 50.0 m in 75 seconds. What is the average power output of the motor during this process?
A baseball player with mass 93 kg, sliding into second base, is retarded by a frictional force of magnitude 450 N.
What is the coefficient of kinetic friction between the player and the ground?
What is the capacitance of a capacitor if it stores 3 coulombs of charge when a potential difference of 6 volts is applied across its plates?
A refrigerator of mass 31.1 kg is initially at rest. Using a net force of magnitude 1.5 N, a person pushes the refrigerator for 6.9 s. Which of the following is the speed(in m/s) of the refrigerator after the 6.9 s interval?
A wire carries a charge of 300 C through its cross-section every 2 min. What is the current in the wire?
Calculate the kinetic energy(in joules) of a 109 g baseball thrown at a velocity of 10 m/s.