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a 5.0 kg block slides from rest down a frictionless slope, then enters a flat area where Uk is 0.50. If the block stops after moving a horizontal distance of 20.0 m, what is the height h the block is released? What is the speed of the block at the base of the slope? (use the total energy conservation law).
A large wooden turntable in the shape of a flat disk has a radius of 2.25m and a total mass of 135kg, Find the angular speed of the turntable after the parachutist lands
Find out the translational speed at the bottom of the fall where it is horizontal. Ignore the frictional losses and assume mass of the cylinder is distributed uniformly.
What is the lenght of the driveway. An electric field = (89000 N/C, right) causes the ball in the figure below to hang at a 20° angle. The ball's mass is 4.7 g. What is the charge on ball.
For a string stretched between two supports, two successive standing-wave frequencies are 505Hz and 630Hz . There are other standing-wave frequencies lower than 505Hz and higher than 630Hz.
What is the speed of light in crown glass (n = 1.52) and What is the speed of light in ethyl alcohol (n = 1.36)
q1. what is the maximum speed with which a 1200- car can round a turn of radius 71 on a flat road if coefficient of
One of the events in the Scottish Highland Games is the sheaf toss, in which a 7.92-kg bag of hay is tossed straight up into the air using a pitchfork. Using the total impulse produced by gravity, determine how long the sheaf is airborne
An electron traveling at v = 1.20 x 10^5 m/s passes from (2.00 m, 1.00 m, 3.00m) to (7.00 m, 3.00 m, 1.00 m), What is the force that electron experiences the instant
A sledge loaded with bricks has a total mass of 18.0 kg and is pulled at constant speed by a rope inclined at 19.6° above the horizontal. How much work is done by the rope on the sledge
q1. two alpha particles helium nuclei each consisting of two protons and two neutrons have the3 electrical potential
A 20.3?kg chandelier is suspended from the ceiling by four vertical steel wires. Each wire has an unloaded length of 1.15m, how far do the wires stretch
If 45 g is suspended at 25 degree, 105 g is suspended at 85 degree, and 65 g is suspended at 330 degree, what mass must be suspended at what angle to balance these three forces?
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