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A 1.4Kg block and a 2.6kg block are attached to opposite ends of a light rope. The rope hangs over a solid, frictionless pulley that is .35m in diameter and has mass of .77kg. When the blocks are released, what is the acceleration of the lighter block?
What fraction of the initial kinetic energy was transferred
A 63 kg girl weighs herself by standing on a scale in an elevator. What is the force exerted by the scale while the elevator is descending at a constant speed of 10.0 m/s.
Two automobiles, each of mass 1000 kg, are moving at the same speed, 21 m/s, when they have an inelastic collision. In what direction and at what speed does the wreckage move if one car was driving north and one east?
What is the resistance of a lightbulb that uses an average power of 40.0 W when connected to a 60.0-Hz power source having a maximum voltage of 132 V
A 3.7-kg block of iron (c=0.11 kcal/kgoC) that has been brought to a temperature of 1,062oC is placed on top of a 2.5-kg block of ice (c=0.5 kcal/kgoC) that has been cooled to -50oC. what is the final temperature of the iron block
A proton, an electron, and an alpha particle (of charge +2e) form an equilateral triangle of side length 2.19×10-10 m. What is the electric potential energy of the three-particle system
If the electric field has a magnitude of 450 and the magnetic field has a magnitude of 0.19 , illustrate what speed must the particles have to pass through the selector undeflected?
Important information about Initial kinetic energy of the object Point A is situated at the bottom of a rough plane which is inclined at 45 degrees to the horizontal. A body of mass 0.5 kg is projected from A along and up the line of greatest slop..
A bug is splattered on a car windshield. Evaluate the magnitude of the windshield's force on the bug to the magnitude of the bug's force on the windshield.
A hockey puck moving at 33m/s slams through a wall of snow 38cm thick. It emerges moving at 19m/s. find the thickness of a snow wall
Some sliding rocks approach the base of a hill with a speed of 15.0m/s . The hill rises at 42.0? above the horizontal, Find the acceleration of the rocks as they slide up the hill
An electric power station is producing 1.60 × 103 W of power that is to be sent to a small town located 11 km away, Find the power lost in heating the wires if the voltage is stepped up from 130 V to 1400 V
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