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An electron and a positron have masses of 9.11 10-31 kg. They collide and both vanish, with only electromagnetic radiation appearing after the collision. If each particle is moving at a speed of 0.25c relative to the laboratory before the collision, determine the energy of the electromagnetic radiation.
A 1.83-kg solid sphere (radius = 0.141 m) is released from rest at the top of a ramp and allowed to roll without slipping. What is its rotational kinetic energy
A challenge gaining prominence throughout the planet is the increased need for \"green\" or sustainable energy. In certain parts of the country, how much energy does the wind turbine generate
What is the relationship between the change in Kinetic Energy and the change in Gravitational Potential Energy of a system
Thor throws his war hammer at an 1800 kg car initially at rest and it becomes embedded within it. with what speed do the car and hammer move just after the collision
A guitar string is vibrating in its fundamental mode, with nodes at each end. The length of the segment of the string that is free to vibrate is 0.384m. What is the amplitude of this standing wave
A steel aircraft carrier is 364m long when moving through the icy North Atlantic at a temperature of 2.4°C. By how much does the carrier lengthen as it is traveling in the warm Mediterranean Sea at a temperature of 21° C.
A 1250 kg cannon, which fires a 80 kg shell with a speed of 546 m/s relative to the muzzle, is set at an elevation angle of 39° above the horizontal. At what angle with the ground is the shell projected
A ladder base is 6m away from a house, and the fully extended ladder is 10m long when it leans against the house
Two identical diverging lenses are separated by 17 cm. The focal length of each lens is -5.8 cm. Determine the final image distance relative to the lens
Two blocks with masses 500g and 510 g are connected to a rope and hung over a 50g cylinder with a radius of 4 cm. What is the rotational inertia of the cylinder
A U-shaped tube is filled mostly with water, but some vegetable oil has been added to both sides of the U tube. Find the difference in fluid level between the two sides of the tube
Boxes are transported from one location to another in the ware-house by means of a conveyor belt that moves with a constant speed of 0.50m/s. At a certain location the conveyor belt moves for 2.00 m up an incline that makes an angle of 10° with the h..
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