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A moving particle encounters an external electric field that decreases its kinetic energy from 9520eV to 7060eV as the particle moves from position A to position B. The electric potential at A is -55.0V and the electric potential at B is +27.0V. Determine the charge of the particle.
An automobile crankshaft transfers energy from the engine to the axle at the rate of 110 kW when rotating at a speed of 2170 rev/min. What torque does the crankshaft deliver
In a large centrifuge used for training pilots and astronauts, a small chamber is fixed at the end of a rigid arm that rotates in a horizontal circle. How long is the arm of the centrifuge
When a 42.0-V emf device is placed across two resistors in series, a current of 12.0 A is flowing in each of the resistors. When the same emf device is placed across the same two resistors in parallel, the current through the emf device is 62.0 A. Wh..
A fish in a flat-sided aquarium sees a can of fish food on the counter. What is the actual distance between the can and the aquarium
You are supposed to make a Rube Goldberg machine that releases a block on an inclined plane that has a length of 2.50m and is supposed to take 15.5 seconds to travel that distance.
A mass pulled by a constant force accelerates from 10 cm/s to 25 cm/s in 3.5 s. what is the magnitude of the second force
When the current in a toroidal solenoid is changing at a rate of 0.0260 A/s, the magnitude of the induced emf is 12.6 mV. How many turns does the solenoid have
A mass of 0.8kg is located at the end of a very light and rigid rod 50 cm in length. What is the rotational inertia of the system
A weightlifter bench-presses a 130.0 kg barbell from his chest to a height equal the length of his arms 0.850 m. How many food calories does the weightlifter use if he does this lift 35 times
A physics professor is pushed up a ramp inclined upward at an angle 35.0^\circ above the horizontal as he sits in his desk chair that slides on frictionless rollers. The combined mass of the professor and chair is 84.0kg . He is pushed a distance ..
A burglar alarm in a house emits sound at a fixed frequency of 3.1 kHz. On a windy day a person cycles past the house while the alarm is sounding. What frequency does the cyclist hear
Find out the maximum elevation of the ball.
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