How much steam must be condensed into the water
A 50.0 g copper calorimeter contains 250 g of water at 20.0°C. How much steam must be condensed into the water if the final temperature of the system is to reach 45.0°C?
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A 4.84 kg block slides down a smooth, frictionless plane having an inclination of 30? . The acceleration of gravity is 9.8 m/s2 . Find the acceleration of the block.
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How much energy is delivered to the target each second if the protons each have a kinetic energy of 30 MeV and lose all of their energy in the target?
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a 3.50 x 10^2 N child is in a swing that is attached to ropes 1.75 m long. find the gravitational potential energy associated with the child relative to her lowest postion when a) the ropes are horizontal, b) the ropes make a 30.0 degree angle wit
Why are the conclusions drawn about voter sociology sometimes in accurate?
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