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A 3.00 kg ball is dropped from the roof of a building 176.4 m high.While the ball is falling to earth, a horizontal wind exerts aconstant force of 12.0 N on the ball. How long does it take to hit the ground?
A 0.245 kg ball is thrown straight up from 1.94 m above the ground. Calculate the total work done by the force of gravity during that time
In a large steam engine, a horizontal rod is attached to a flywheel by means of a frictionless pivot 95 cm from the wheel's axis. what is the torque about the wheel's axis
The speed of an alpha particle is determined to be3.45×106 m/s. If all of its kinetic energy isacquired by passing through an electric potential, what is the magnitude of that potential?
four point charges q are fixed to the four corners of a square that is 10.2 cm on a side. an electron is suspended
Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. What is the acceleration of the yellow car
You drop a stone into a deep well and hear it hit the bottom 1.80 s later. This is the time it takes for the stone to fall to the bottom of the well, plus the time it takes for the sound of the stone hitting the bottom to reach you. Sound travels ..
Having taken a nap under a tree only 20 m from the finish line, Rabbit wakes up to find Turtle 19.5 m beyond him, grinding along at 1/4 m/s. If the bewildered hare can accelerate at 8 m/s2 up to his top speed of 17 m/s (38 mi/h) and sustain that s..
an 8.70 kg block slides with an initial speed of 1.66 m/s up aramp inclined at an angle of 27.4 degree with the horizontal. find the distane the block slides before coming to rest
A person walks first at a constant speed of 4.60 m/s along a straight line from point Ato point B and then back along the line from B toA at a constant speed of 2.90m/s. What is her average speed over the entiretrip?
A plane travels horizontally at 737 m/s at an angle of 35.9 degrees west of north. find the component of the speed of the plane west
A ship sets out to sail to a point 182-km due north. An unexpected storm blows the ship to a point 158-km due east of its starting point. How far must it now sail to reach its original destination.
What percentage of the input energy needed to pump the water up to the top tank could you recover from the turbine as the water ran back to the bottom tank, two 15,000 litre water tanks and put one on a frame 3m higher than the other,
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