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How fast would an 85-kg cheetah, which was recorded to have a power output equal to 660 hp, attain the same amount of power as a Ferrari V8, which produces 769 hp, to go around a lap in 3 minutes?
A hydraulic lift has input and output pistons with diameters of 0.12 m and 0.48 m, respectively. If a force of 275 N is exerted at the input piston, calculate the maximum mass that can be lifted by the output piston.
A cylindrical water tank of diameter 15.0 m and height of 5.5 m contains 7.0 m3 of water. Calculate the force on the base of the tank.
An elevator carrying 10 passengers through a height of 10 m from the ground has a mass of 2000 kg. Calculate the power required by the motor to lift the elevator if the time taken to lift the elevator to that height is 1 minute.
An object with a mass of 3.50 kg moves in a straight line on a frictionless horizontal surface with a speed of 2.0 m/s. Find the kinetic energy and the net work done on the object to make it reach this speed if it started from rest.
A person pulls on a spring, stretching it 15 cm, which requires a maximum force of 750 N. Find the potential energy stored in the spring when it is stretched by 15 cm and compressed by 5 cm.
In the Triwizard Tournament hosted by Hogwarts School, Harry Potter walks 1.5 m southeast, 2.5 m 60° west of south and finally 3.5 m straight south to locate the Triwizard Cup hidden in a massive hedge maze. Determine Potter’s final position relative to his starting point.
What capacitance is needed to store 3.00μC of charge at a voltage of 120 V?
A uniform electric field with 500 N/C is parallel to a flat square area of 115 m 2 . Calculate the electric flux.
A solid conducting sphere with an area of 16 m 2 has a total charge of 4 μC. Determine the electric field through the Gaussian surface.
