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A 3.00-g bullet traveling horizontally at 413 m/s hits a 28.0-g wooden block, which is initially at rest on a smooth horizontal table. The bullet buries itself in the block without passing through. The speed of the block after the collision is?
A 2-kg book with no initial velocity slides down an inclined plane with an angle of 20 degrees a total of 2 meters. The force of friction does 10 Joules of work, what is the final kinetic energy of the system as the book reaches the bottom of the ..
Two railroad cars, each of mass 7300 kg and traveling at 73 km/h, collide head on and come to rest. How much mechanical energy is lost in this collision
A proton is released from rest at the positive plate of a parallel-plate capacitor, What will be the proton's final speed if the experiment is repeated with double the amount of charge in each capacitor plate
A 32.8 g piece of aluminium at 72 is dropped into a cavity in an extremely large block of ice at 0. How much ice mice does aluminium piece melt.
What is the magnitude of the torque exerted by the entire flagpole at the point of contact with the building.
You are trying to overhear a juicy conversation, but from your distance of 15m. It sounds like only an average whisper of 20 dB. So you decide to move closer to give the conversation a sound level of 60 dB instead. How close must you come.
A symmetric double convex lens with a focal length of 25.0cm is to be made from glass with an index of refraction of 1.53. What should be the radius of curvature for each surface
Sunlight is observed to focus at a point 18.5cm behind a lens. What is its power in diopters
The first and second electron shells of an element are filled and there are five electrons in the third electron shell
A worker stands still on a roof sloped at an angle of 23° above the horizontal. He is prevented from slipping by a static frictional force of 540 N. Find out the mass of the worker.
A recantangular block of wood floats in a calm lake. Show, if friction is ignored, determine an equation for the force constant
A lamp (R = 155 ), an electric heater (R = 27 ), and a fan (R = 51 ) are connected in parallel across a 118 V line. What power is expended in the heater
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