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The Stanford Linear Accelerator accelerated a beam consisting of 1.2 1014 electrons per second through a potential difference of 4.0 1010 V. (When entering units, use ohm for ?)
(a) Calculate the current in the beam. (b) Calculate the power of the beam.
A transformer has 400 primary turns and 1510 secondary turns. The input voltage is 120 V and the output current is 16.0 A. Assume 100 percent efficiency. What is the output voltage
A car with mass of 1000.0 kg accelerates from 0 m/s to 40.0 m/s in 11.0 s. What is the average mechanical power output of the engine
A photographer in a helicopter ascending vertically at a constant rate of 12.5 m/s accidentally drops a camera out the window, How long will it take the camera to reach the ground
23 kg of a liquid metal with a latent heat of fusion of 53.12 kJ/kg freezes while at its melting temperature of 354 °C. Calculate the change in entropy of the metal
1. a batter hits a 0.140-kg baseball that was approaching him at 30.0 ms and as a result the ball leaves the bat at
A 200 weather rocket is loaded with 100 kg of fuel and fired straight up. It accelerates upward at 30 m/s^2 for 33 s, then runs out of fuel. Ignore any air resistance effects. Illustrate what is the rocket's maximum altitude?
An archer pulls her bowstring back 0.388 m by exerting a force that increases uniformly from zero to 229 N. What is the equivalent spring constant of the bow
A waiter holds two plates of food in one hand. Hiss forearm has a mass of 2.2 kg and the center of mass of his forearm is located 13 cm from his elbow joint. find the torque produced by the mass of the two plates
The rectangular loop in the drawing consists of 75 turns and carries a current of I = 4.9 A. compute the magnitude of the net torque exerted on the loop
a ball is thrown vertically upward with a speed of 14.0 ms.a how high does it rise?b how long does it take to reach its
Ocean waves pass through two small openings, 21m apart, in a breakwater. You're in a boat 69m from the breakwater and initially midway between the openings, but the water is pretty rough. You row 37m parallel to the breakwater and, for the second tim..
Four positively charged particles enter magnetic field as shown. What would be the path of each particle in the field
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