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A 54.1-kg ice skater is standing at rest on a frozen lake. The friction between his skates and the surface of the ice is negligible. If he throws a 5.8 kg block of ice horizontally with a velocity of +12.0 m/s (relative to the ground), what is the magnitude of his recoil velocity (relative to the ground)?
A 2.4 m long pendulum is released from rest when the support string is at an angle of 25° with the vertical. What is the speed of the bob at the bottom of the swing
how much time in seconds will it take the officer. A 63 resistor is connected in parallel with a 115.0 resistor. This parallel group is connected in series with a 19 resistor. The total combination is connected across a 15.0 V battery. Find the cur..
A tuning fork vibrating at an unknown frequency is held over the open end of a tube partially filled with water. If the fundamental resonant mode is heard when the water level is 30cm below the open end, what is the frequency of the tuning fork?
A mass of gas occupies a volume of 4.3 L at a pressure of 1.8 atm and a temperature of 345 K. Determine the final pressure
A 5.43 kg block free to move on a horizontal, frictionless surface is attached to one end of a light horizontal spring. find the speed of the block at the equilibrium position of the spring
A Carnot-efficiency engine operating between a reservoir of liquid mercury at its melting point, What is the temperature of the colder reservoir
Consider a series RLC circuit where R = 957 ? and C = 5.25 ?F. However, the inductance L of the inductor is unknown. What is the inductance of the inductor in millihenrys
A large, cylindrical tank contains kerosene (S.G. = 0.85) in storage later to be transported by rail. The tank has a diameter of 19 meters and is 11 meters tall and has a 28 cm in diameter hole at its base.
A 110 g copper calorimeter cup contains 190 cm3 of water and 45 g of ice, all in thermal equilibrium. find the mass of water before the hot iron is put into the cup
Asterix and Obelix are standing on skateboards on level ground 2 m apart. Obelix holds a ball of mass 1 kg. in which direction will the center of mass move
Five-gram samples of copper and aluminum are at room temperature
A +5.8 µC charge is placed at the origin and a -3.9 µC charge is placed at x = 25 cm. At what coordinates can a third charge be placed
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