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A woman stands on a scale in a moving elevator. Her mass is 69.5 kg, and the combined mass of the elevator and scale is an additional 815 kg. Starting from rest, the elevator accelerates upward. During the acceleration, the hoisting cable applies a force of 9720 N. What does the scale read during the acceleration?
The electric potential at a position located a distance of 19.5 mm from a positive point charge of 7.70×10-9C, Calculate the value of the second charge
Two masses 3kg and 5kg are held around a pulley as shown in the figure. When the two masses released, what will be the acceleration of the 5kg mass
Two masses are connected by a light string passing over a light, frictionless pulley, Determine the speed of each object when the two pass each other
Two of Angie's friends are talking to each other at a distance of 3.0 m from where Angie stands. What sound intensity does he measure for the two talkers
A juggler throws a ball from height of 0.950 m with a vertical velocity of +3.75 m/s and misses it on the way down. What is its velocity when it hits the ground
A car (m = 700.0 kg) accelerates uniformly from rest up an inclined road which rises uniformly, to a height, h = 42.0 m. Find the average power the engine must deliver to reach a speed of 20.3 m/s at the top of the hill in 24.5 s
A block of ice at 0 degrees C, whose mass is initially 30.0 kg, slides along a horizontal surface, starting at a speed of 5.56 m/s and finally coming to rest after travelling 21.8 m. figure out the mass of ice melted (in grams) as a result of frictio..
After getting a drink of water, a hamster jumps onto an exercise wheel for a run. Find the work done by the hamster to get the exercise wheel moving
A proton traveling with a velocity of 6.20x10^6 m/s in the positive x direction encounters a uniform 0.25 magnetic field in the positive y direction
A 2 kg mass dropped 2.0 m above a spring with a spring constant of 40.0 N/m. How much does the spring compress
determine the mass of liquid ammonia that boils away before thermal equilibrium. Assume an excessive amount of liquid ammonia is present and that the liquid ammonia does not react with the copper.
A daring ranch hand sitting on a tree limb wishes to drop vertically onto a horse galloping under the tree. The constant speed of the horse is 12.0 m/s, and the distance from the limb to the level of the saddle is 4.00 m.
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