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A ski starts from rest and slides down a 22° incline 90 m long. Use energy methods.
(a) If the coefficient of friction is 0.09, what is the ski's speed at the base of the incline?
_____m/s
(b) If the snow is level at the foot of the incline and has the same coefficient of friction, how far will the ski travel along the level?
______m
A square coil of wire of side 3.00 cm is placed in a uniform magnetic field of magnitude 2.50 T directed into the page, find the average current induced in the coil during this rotation
A battery designed for charging cell phones is rated at 4300 mA·h. To the nearest coulomb, how much charge is stored in the battery?
what is the new force between the objects. if Andromeda contains roughly the same number of stars and attracts the Milky Way with a gravitational force of 2.4*10^30N.
in a simplified roller bearing, the inner cylinder has a radius of 1.0 cm and is stationary. What is the angular speed of the small cylinders
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The wattage of a commercial ice maker is 212 W and is the rate at which it does work. The ice maker operates just like a refrigerator and has a coefficient of performance of 3.60. The water going into the unit has a temperature of 16.0°C, and the ..
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A two-stage rocket is launched at an initial angle of 83 degrees from the horizontal, and for 15.4 seconds,its engine provides a uniform acceleration in its lauch direction of 25m/s^2. Find the maximum height of the rocket
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You have two capacitors, one with capacitance 12.3 × 10-6 F and the other of unknown capacitance. obtain its capacitance
Four point charges have the same magnitude of 2.18 x10-12 C and are fixed to the corners of a square that is 3.95 cm on a side. Three of the charges are positive and one is negative. find the magnitude of the net electric field that exists at the ..
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