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Question:

physics homework question help?

A nail driven into a board increases in temperature.If 60.0 % of the kinetic energy delivered by a 907 g hammer with a speed of 7.80 m/s is transformed into heat that flows into the nail and does not flow out, what is the increase in temperature of an 8.00 g aluminum nail after it is struck 10.0 times?please show work not just answer

Answer:

Calculate the kinetic energy of a 907 g hammer moving at 7.80 m/sUse the formula K 1/2 m v^2Take 60.0% of that energyUse it to increase the 8.00 g nail's temperature, using the specific heat of aluminumThe specific heat of aluminum is 0.91, which means that it takes 0.91 J of energy to raise a gram of aluminum's temperature by 1 degree KelvinMultiply by 10, to account for 10.0 strikesRound your answer to three significant figures, as all entries given have exactly three significant figuresGo ahead, do the calculation now that I've shown you exactly how to do it.

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