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A building is about 336 meter high. Determine by energy considerations the kinetic energy of a 10 kg object after it has fallen 100 meter from this building.
a 1600 kg car is pulling a 375 kg trailer. together the car and trailer have an acceleration of 2.15 ms2 directly
A baseball is thrown from the roof of 23.1 -tall building with an initial velocity of magnitude 11.5 and directed at an angle of 52.0 above the horizontal. What is the speed of the ball just before it strikes the ground? Use energy methods and ignore..
A pilot flies horizontally at 630 km/h, at height h = 48 m above initially level ground. However, at time t = 0, at what time t does the plane strike the ground
A solenoid is made by wrapping a wire so that it makes a solenoid (coil) having 500 turns of diameter 8.00 cm and length 40.0 cm. Find the inductance of this solenoid
A train is traveling up a 4.6° incline at a speed of 3.27 m/s when the last car breaks free and beginsto coast without friction. How long does it take for the last car tocome to rest momentarily
A playground merry-go-round of radius R = 1.20 m has a moment of inertia I = 265 kg · m2, What is the new angular speed of the merry-go-round
Consider an engine operating with a monatomic ideal gas of 0.5 moles on a 3 stroke cycle with a PV diagram shown below. What is the real efficiency of this engine
A factory worker moves a 23.0kg crate a distance of 4.90m along a level floor at constant velocity by pushing horizontally on it. What magnitude of force must the worker apply
question1 a high speed train in japan travels a distance of 300 kilometres in 3.60x103 seconds. what is an average
A 779-kg car stopped at an intersection is rear-ended by a 1820-kg truck moving with a speed of 15.0 m/s. If the car was in neutral and its brakes were off, so that the collision is approximately elastic, find out the final speed of both vehicles ..
q1. illustrate the force vectors with their tails at the origin of coordinate system. the orientation of your vectors
A stone is dropped into the water from a bridge 144ft above thewater. another astone is thrown vertically down 1s after thefirst is dropped. what was the initial speed of the second stone
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