a 10g bullet moving at 70 m/s penetrate a block oc wood 5cm before stopping determine the kinetic energyof the bullet and the average stopping force

Why is metal often used for cooking pan?

Your town is considering building a biodiesel power plant describe at least two advantages and two disadvantages

A47.2 g block of copper whose temperature is 480 k is placed in an insulating box with a 91.8 g block of lead whose temperature is 200 k. (a) what is the equilibrium temperature of the two-block system? (b) what is the change in the internal energy of the two-block system between the initial state and the equilibrium state? (c) what is the change in the entropy of the two-block system? the heat capacities of copper and lead are 386 j/kg·k and 128 j/kg·k, respectively.