Question 15 (1 point) While ice is melting, it absorbs 334 kJ of heat per kilogram of ice. This takes place at
a constant temperature of 0°C. What is the entropy change of 4 kg of ice while it
melts? (Be careful of your energy units). (1 point)

You win the lottery and decide to impress your friends by exhibiting a million-dollar cube of gold. at the time, gold is selling for $ 426.60 per troy ounce, and 1.0000 troy ounce equals 31.1035 g. -how tall would your million-dollar cube be? en cm

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?

In a classical model of the hydrogen atom, the electron moves around the proton in a circular orbit of radius 0.053 nm. what is the electron's orbital frequency? what is the effective current of the electron?