A500.-g iceberg at -5.00°c is placed in a 226 g beaker with specific heat capacity 840 j/kg °c at temperature 15.0°c that contains 220 g of water. what is the minimum amount of steam needed to add into the system in order to melt the iceberg?

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

Which of these statements is true? a. quarks pair with leptons to form protons and neutrons. b. quarks pair with bosons to form photons. c. quarks pair with photons to form protons and neutrons. d. quarks pair with other quarks to form protons and neutrons. e. quarks pair with electrons to form protons.

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.