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A crate with a weight of 50N rests on a horizontal surface. A person pulls horizontally on it with a force of 10N and it does not move. To start it moving, a second person pulls vertically upward on the crate. If the coefficient of static friction is 0.4, what is the smallest vertical force for which the crate moves?
Gravity fed intravenous infusions are made possible by hanging a bag of fluid above the patient. If blood pressure is 18 mm Hg above atmospheric pressure, find the minimum height of the bag such that fluid flows into the body. Assume the density of t..
two particles each have a mass of 6.00 x 10-3 kg. one has a charge of 5.0 x 10-6 c and the other has a charge of -5.0
While driving north at 25 m/s during a rainstorm you notice that the rain makes an angle of 38 with the vertical. find the speed of the raindrops relative to the ground
a ship's horn can be heard above typical background noise if at intensity level 20 dB. what must be the power of the horn's output to achive this level at 5.0 km away
A 2.4kg object is moving along the x-axis at 1.55m/s. As it passes the origin, two forces F1 and F2 are applied, both in the y direction (plus or minus).
consider this nasa decides to build a house on the moon and to keep time they send up the grandfather clock from the
The potential at the center of a uniformly charged ring is45 kV, and 15 cm along the ring axis the potential is 33 kV. Find the ring's radius and its total charge.
A rocket is fired at a speed of 75.0 m/s from ground level, at an angle of 67.2° above the horizontal. The rocket is fired toward an 11.0 m high wall, By how much does the rocket clear the top of the wall
A .230 kg baseball is thrown with a speed of 41 m/s. If the above ball comes to rest in the catcher's mitt in .085 seconds, how much force does the ball apply on the catcher's mitt
A 25g object moving to the right at 20 cm/s overtakes andcollides elastically with a 10.0g object moving in the samedirection at 15cm/s. What is the velocity of each object after collision
In a very busy off-campus eatery one chef sends a 249-g broccoli-tomato-pickle-onion-mushroom pizza sliding down the counter from left to right at 1.67 m/s. At what speed does it move
A 70.0 kg girl lowers herself to the ground from a height of 8.8 m by holding onto a rope running over a pulley to a 54.0 kg sandbag. what is her speed when she reaches the ground
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