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A 26.79 g sample of a substance is initially at 23.6 C. After absorbing 1001 J of heat, the temperature of the substance is 198.1 C. What is the specific heat (c) of the substance?
A block of ice of mass 8 kg, released from rest at the top of a frictionless ramp of a 1.50m long slides downhill, reaching a speed of 2.50 m/s at the bottom.
A flat cylindrical grinding wheel is spinning at 2000 rpm (clockwise when viewed head-on) when its power is suddenly turned off. Normally, How much work was done by friction on the system
A 0.5 kg lump of clay is moving at 2 m/s in the +x direction of some arbitrarily chosen coordinate system. What is the velocity of the pair after the collision
0.14 kg of water at 88.0 deg C is poured into an insulated cup containing 0.234 kg of ice initally at 0 deg. Calculate the mass of liquid
Typical large values for electric and magnetic elds attained in laboratories are about 1:0104 V/m and 2.0 T. Determine the energy density for each eld
An electron is confined to a box the size of a small atom, 0.12nm across. ?p, What wavelength photon would have the same energy
Suppose a 170-kg motorcycle has two wheels, and is heading toward a hill at a speed of 30.0 m/s. How much energy is lost to air resistance
A projectile is fired with an initial speed of 60.9 at an angle of 37.4 above the horizontal on a long flat firing range. Determine the total time in the air
Though slow on land, the leatherback turtle holds record for the fastest water speed of any reptile: 9.78 m/s. It is also among the largest of reptiles. Assume the largest leatherback yet discovered were to swim at the top leatherback speed. If its k..
A red car and a green car, identical except for the color, move toward each other in adjacent lanes and parallel to an x axis. What is the initial velocity of the green car
a golf ball is shot from a tee, elevated above 20.0m above the green,with the initial angle of 50.0 degrees above the horizontal. how much time will it take for the ball to travel from the tee
a carnot efficiency engine operating between a reservoir of liquid mercury at its melting point and a colder reservoir extracts 15.0 J of heat from the mercury, What is the temperature of the colder reservoir
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