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A man throws a stone vertically downward with an initial speed of 11.5 m/s from the roof of a building, 39.0 meter above the ground.
(a) Determine how long does it take the stone to reach the ground?
(b) Determine the speed of the stone at impact?
A one-meter long stick ("meter stick") has mass 120 grams, and is hinged at one end (pivot). Calculate the rotational inertia of the stick
A 6-µF capacitor in series with a 2-? resistor is charged with a 9-V battery for a long time by closing the switch, Determine the maximum current through the inductor
There are four charges, each with a magnitude of 2.0μC. Two are positive and two are negative. The charges are fixedto the corners of a 0.30 m square, one to a corner, in such a waythat the net force on any charge is directed toward the center oft..
Light inside an optical fiber tube hits the wall between the tube and air. What is the index of refraction of the tube
A mass m2 = 1.8 kg, on a 39.4° incline, is connected to a mass m1 = 5.2 kg, on a horizontal surface. find the magnitude of the tension in the connecting cord
In preperation for building a space station, an astronaut removes a self-teliscoping uniform rod form the cargo bay and releases it, What is the angular speed after the catch slips
A horizontal spring is lying on a frictionless surface. One end ofthe spring is attached to a wall whle the other end is connected toa movable object. The spring and object are compressed by0.074 m, released from rest, and subsequently oscillate b..
A solenoid of length 4.0 cm and diameter 0.93 cm is wound with 165 turns per cm. What is the induced emf in one of the windings
Every year, there is a foot race to the top of the Empire State Building. The vertical distance traveled (using the stairs!) is about 440 m. what was his average power output during the race
a vector A has a magnitude of 40.0 m and points in a direction 20.0 degrees below the positive x axis. find the magnitude and direction of the vector C
A woman can read the large print in a newspaper only when it is at a distance of 65 cm or more from her eyes. What should be the refractive power (in diopters) of her glasses
A cubic block of lead alloy 0.1m on a side is placed in a bucket of mercury. What is the magnitude of the buoyant force
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