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You cool a 120.0g slug of red-hot iron (temperature 745 C) with dropping it into an insulated cup of negligible mass containing 65.0g of water at 20.0 C. Suppose no heat exchange with the surroundings.
1. What is the final temperature of the water?
2. What is the final mass of the iron and the remaining water?
A straight wire of mass 200 g and length 1.5 m carries a current of 2 A. What is the magnitude of the magnetic field
A 5 kg block sits on a surface with a maximum static coefficient of friction of 0.60. A 10g bullet is fired into the block. What must be the speed of the bullet to just make the block start moving
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a nearsighted person wears contacts to correct for a far point that is only 3.24 m from his eyes. the near point of his
question apparent weight a 550-n physics student stands on a bathroom scale in an 850-kg including the student elevator
A stretched spring stores 2.2 of energy. How much energy will be stored if the spring is stretched three times as far
What is the magnitude of the current in the wire as a function of time?
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A 65.0 kg object slides down a 30o angle slope from rest at a height of 15.0 m. The coefficient of kinetic friction between the object, find vthe object's speed at the bottom of the slope
After 6.00 kg of water at 77.3 oC is mixed in a perfect thermos with 3.00 kg of ice at 0.0 oC, the mixture is allowed to reach equilibrium. find the change in entropy that occurs
Two 4.0-g spheres are suspended by 9.0-cm-long light strings. determine the electric field intensity that enables the spheres to be in equilibrium at ? = 12°
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