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a student drops two metallic objects into a 120 g steel container holding 150 g of water at 25degc one object is a 210
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