Apiece of iron (c = 0.449 j/g°c) and a piece of gold (c = 0.128 j/g°c) have identical masses. if the iron has an initial temperature of 468 k and the gold has an initial temperature of 328 k, which of the following statements is true of the outcome when the two metals are placed in contact with one another? assume no heat is lost to the surroundings.

Iwill give 30 points to whoever answers ! what is the formula for actual mechanical advantage and ideal mechanical advantage?

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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.