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Protons and electrons can be given very high energies in particle accelerators. What is the wavelength of an electron that has been accelerated to 99% of the speed of light
A solar cell generates a potential difference of 0.320 V when a 445.0 ? resistor is connected across it and a potential difference of 0.504 V, find the internal resistance of the cell in Ohms
A hydrogen atom is in the ground state. It absorbs energy and makes a transition to the n = 6 excited state. What are the photon wavelengths of transitions
A rocket with initial mass of 7.50×103 kg is fired in the vertical direction. Its exhaust gases are ejected at the rate of 4.50×101 kg/s with a relative velocity of 2.200×103 m/s. What is the initial acceleration of the rocket
Calculate the electric field from four point-charge: +q at -d and -q at -d/2; 2q at d and -2q at d/2 on the z-axis, First calculate the electric potential, and then calculate its radient.
A golf ball is struck with a five iron on level ground. It lands 92.7 away 4.10 later. find the magnitude of the initial velocity
Suppose a ball player throws a ball at an angle of 55 degrees and a speed of 25 m/s. Next to the ball thrower, What is the distance the ball is thrown
A car is moving with constant acceleration along a straight road. Determine how the velocity varies for positive acceleration if the car is initially moving to the right with a speed of 10.0 m/s
A panicular spring has a spring constant of 86 N/m and a mass of 0.548 kg at its end. When the spring is driven in a viscous medium, the resonant motion occurs at an angular frequency of 12.2 rad/s.
Old MacDonald had a farm, and on that farm he had a gate (see below). The gate is 3m wide and 1.8m high, with hinges attached to the top and bottom. The guy wire makes an angle of 300 with the top of the gate and is tightened by a turn buckle to a..
sketch a scaled ray diagram and show the location of the iamge using 3 principle rays, calculate the magnification of the object
A 3.00-m long rod is hinged at one end. The rod is initially held in the horizon position, and then released as the free end is allowed to fall. What is the angular acceleration as it is released
A 1000-N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A 1960-N crate hangs from the far end of the beam.
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