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A 1550 kg car drives around a flat 200 m diameter circular track at 30 m/s. What is the magnitude and direction of the net force on the car?
A closely packed coil of 500 turns carriers a current of 2.0 A. at what rate must the current change in order to induce an emf of 75V
A tuning fork vibrating at 516 Hz falls from rest and accelerates at 9.80 m/s2. How far below the point of release is the tuning fork while waves with a frequency of 489 Hz reach the release point? Take the speed of sound in air to be 340 m/s.
A nuclear power plant generates 2000 MW of heat energy from nuclear reactions in the reactor's core. What is the plant's actual efficiency
During basketball tryouts, Umass walk-on hopeful Dwayne Madison stole a pass at his own free throw line. He then spring straight down the court to the opponent's free throw line, What was his avg velocity
A 2.9-cm-tall object is 35 cm in front of a converging lens that has a 8.8 cm focal length. Calculate the image position and height
A uniform soda can of mass 0.140 kg is 12.00 cm tall and filled with 1.31 kg of soda. After that small holes are drilled in the top and bottom (with negligible loss of metal) to drain the soda.
A sailboat tracking against the wind moves as follows: 3.2 km at 45 degrees east of north, 4.5 km at 50 degrees west of north, What is the speed if it is assumed to be constant
Two point charges, Q = +5.17 microC and q = -2.83 microC, are separated by r = 5.85 m. What is the electric potential energy?
When a hammer strikes a nail, it is compressed along its length. Suppose that a steel nail 8.00 cm long, What average force was exerted on the nail by the hammer
In San Francisco a very simple technique is used to turn around a cable car when it reaches the end of its route. The car rolls onto a turntable, what is the magnitude of the net torque applied to the car
Consider the motion of an apple and the Earth as the apple falls to the ground. If the apple begins at the top of a tree of height 11 m, Estimate the mass of an apple
A golfer hits a shot to a green that is elevated 3.0 m above the point where the ball is struck. find the speed of the ball just before it lands
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