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Question 1. What are the respective potential energies of 2.1 kg objects in the basement and attic, relative to ground level? Express your answers using two significant figures seperated by a commas. Ub, Ua
Question 2. What is the change in potential energy if the object in the attic is brought to the basement?
A bullet is fired through a board that is 15.0 cm thick. The bullet moves along a direction perpendicular to the board. find the bullet's acceleration as it passes through the board
A 22 kg dog is standing on the edge of a stationary, frictionless turntable of rotational inertia 95 kg·m2 andradius 1.97 m. The dog walks once around the turntable. What fraction of a full circle does the dog's motion make with respectto the ground?
A particular constant, horizontal force exerted on a particular object free to slide on a level, what is the new value of acceleration
A ball with a mass of 0.75 kg is thrown vertically into the air with an initial velocity of 10 m/s. establish the velocity of the ball when it hits the ground if it was initially released 2.0 m above the ground.
when it is very far from the asteroid it will be traveling with speed 187 m/s. We have a large and powerful spring whose stiffness is 3.0 105 N/m. Explain how much must we compress the spring?
Peter, a 100kg basketball player, lands on his feet after completing a slam dunk and then immediately jumps up again to celebrate his basket. What is the impulse exerted on Peter during this 0.50s
A rifle bullet of mass m = 0.03 kg traveling at vb = 240 m/s collides with and embeds itself in a pendulum of mass M = 2.88 kg, How high does the pendulum-bullet combination rise after the collision
A hydraulic lift has pistons with areas 0.65m^2 and 5.50m^2 , and they're at the same height. how much mass can the larger piston support
A small coin is placed on a flat, horizontal turntable. The turntable is observed to make three revolutions in 3.14s. What is the speed of the coin when it rides withoutslipping at a distance of 5.0 cm from the center of theturntable
A 45.0 resistor, a 0.100 H inductor, and a 10.0 µF capacitor are connected in series to a 60.0 Hz source. The rms current in the circuit is 2.55 A. Find the rms voltages across the inductor
A solenoid of length 5.6 cm and diameter 0.88 cm is wound with 167 turns per cm. The current is decreasing at a rate of 37.4 A/s. What is the induced emf in the entire solenoid
How many packs of shingles can the contractor lift before he begins to slide down the roof assuming the following Contractor weights and values for the coecient of static friction exists between the contractor and the roof.
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