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a solid sphere of mass 40 kg and radius 012 m starts from rest at the top of a ramp inclined 15 degree and rolls to the
a sphere that is a perfect blackbody radiator has a radius of 0120 m and is at 200degc in a room where the temperature
a styrofoam box has a surface area of 076 m2 and a wall thickness of 20 cm the temperature of the inner surface is
a glass windowpane in a home is 062 cm thick and has dimensions of 10 m multiplied by 19 m on a certain day the indoor
a 400kg baby grand piano is raised to the roof of a 100m building if the cable breaks as it reaches this height what
an aluminum cup contains 225 g of water and a 40 g copper stirrer all at 27degc a 410 g sample of silver at an initial
an aluminum rod is 180 cm long at 20degc and has a mass of 350 g if 12500 j of energy is added to the rod by heat what
a 30-kg cylinder falls vertically from rest in a very tall evacuated tube 20m above the surface of the earth1 what is
suppose 238 l of an ideal monatomic gas at a pressure of 260 105 kpa is expanded adiabatically no heat transfer until
a football player kicks a 041-kg football initially at restand the ball flies through the air if the kickers foot was
a 300- goldfinch lands on a slender branch where it oscillates up and down with simple harmonic motion of amplitude
you rev your cars engine to 2600 a if you change the period of the engine to 0038 how many rpms is it
a 0004-kg bullet is fired into a 0200-kg block of wood at rest on a horizontal surface after impact the block with the
a 060- mass attached to a vertical spring of force constant 150 oscillates with a maximum speed of 030 find the
two infinite straight parallel wires each carrying current i in the same direction are coincident with the lines 10z
a uniform bar of metal 040 m long with a diameter of 20 cm has a mass of 11 kg a 15 mhz longitudinal wave is propagated
a heat engine operating between energy reserviors of 19283 oc and 51728oc has 2932 of the maximum possible efficiency
a mass on a spring has an angular oscillati0n frequency of 281 rads the mass has a maximum displacement when t0s of
a wheel radius 06 m is rolling on a horizontal surface with a center of mass acceleration of 07 ms2 if the force
a car is traveling at 5385 mph the driver applies the brakes and the car decelerates at 11 ms2 what is the stopping
a ball is launched straight up with a speed of 2505 miles per hour what is the maximum height reached in
jupiter has a mass that is roughly 320 times that of the earth and a radius equal to 11 times that of the earth what is
1140 g of water is heated using 670 w of power with perfect efficiency how long will it take to raise the temperature
a 100 kg bomb is at rest it explodes into two chunks one piece of mass300 kg goes east at 100 ms what is the speed of
one gallon of gasoline releases approximately 10 108 j when it is burned ie undergoes combustion in a car engine if the