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One end of a stretched string is moved transversely at constant velocity Vy for a time T, and is moved back to its starting point with velocity -Vy during the next interval T. As a result, a triangular pulse is set up on the string and it moves along it with speed V. Calculate the kinetic and potential energy energies associated with the pulse, and show that their sum is equal to the total work done by the transverse force that has to be applied at the end of the string.
What is the maximum amount of energy the incident electron can lose in elastically in this collision? What is left over energy of the electron.
A bullet is fired through a board 13.5 cm thick, with a line of motion perpendicular to the face of the board. If the bullet enters with a speed of 387 m/s and emerges with a speed of 163 m/s, what is its acceleration as it passes through the boar..
At a dock, a crane lifts a 2094 kg container 14 m, swings it out over the deck of a freighter, and lowers the container into the hold of the freighter, How much work is done by the crane on the container?
A Step-Up transformer with 60 Hz AC power has an input voltage of 1000 V at a current of 2 Amperes, What is the current flowing out of the transformer
A certain superconducting magnet in the form of a solenoid of length 0.30 m can produce a magnetic field of 13.0 T in its core when its coils carry a current of 105 A. The windings, made of a niobium-titanium alloy, must be cooled to 4.2 K. Find o..
A racecar starts from rest and accelerates to 100 km/hr halfway around a circular track of a radius 50 m. What is the magnitude of the acceleration of the car
A 5.1- kg concrete block rests on a level table. A 3.6- kg mass is attached to the block by a string passing over a light, find the coefficient of friction between the block and the table
The magnitude of the force of friction acting on the block between A and is 1.2N and points A and B are 0.5 m apart. If the kinectic energies of the block at A and B are 4J and 5.6 J, respectively, how much work is done on the block by the force p..
An electron has an initial velocity of 4.9 • 106 m/s in a uniform 1.9 • 105 N/C strength electric field. How far does the electron travel before coming into rest in m
An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated by a distance of 1.70 mm. evaluate the electric field between the plates
Consider a Van de Graaff generator with a 30.0 cm diameter dome operating in dry air. what is the maximum potential energy of the dome
A cart with mass 230 g moving on a frictionless linear air track at an initial speed of 1.7 m/s undergoes an elastic collision with an initially stationary cart of unknown mass, What is the speed of the two-cart center of mass
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