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A carpenter is driving a nail into a board. The 1.25 kg hammer moves at 8.85 m/s when it strikes the nail. Assume half the kinetic energy is transformed into heat in the 15.0 g steel nail and does not flow out. The nail is 3.00 cm long. The specific heat of steel is 448 J/(kg K), and the thermal expansion coefficient is 12x10^-6 K^-1
A) What is the increase in temperature of the nail after 3 blows from the hammer?
B) What is the change in length of the nail?
Suppose you hear a clap of thunder 17.2 s after seeing the associated lightning strike. How far are you from the lightning strike
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a box sits on a horizontal wooden board. the coefficient of static friction between the box and the board is 0.25. you grab one end of the board and lift it up, keeping the other end of the board on the ground. what is the angle between the board ..
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A beam of nuclei is used for cancer therapy. Each nucleus has an energy of 108 MeV, How many nuclei are in the beam
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