One mole of copper at a uniform temperature of 0° c is placed in thermal contact with a second mole of copper which, initially, is at a uniform temperature of 100° c. calculate the temperature of the 2-mole system, which is contained in an adiabatic enclosure, when thermal equilibrium is attained. why is the common uniform temperature not exactly 50° c? how much thermal energy is transferred, and how much entropy is produced by the transfer? the constantpressure molar heat capacity of solid copper varies with temperature as cp = 22.64 + 6.28×10−3t j/mole k

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.