Is converting frost to water vapor an exothermic or endothermic?

Which type of listening response includes the use of head nods, facial expressions, and short utterances such as "uh-huh" that signal your interest to the speaker?

A diamond has a density of 3.5 g/cm^3. What is the mass of a diamond with a volume of 0.3 cm^3? A) 11 g B) 1.2 g C) 1.05 g D) 0.086 g

Four vehicles are traveling on the same road. Which vehicle most likely has the greatest kinetic energy?

How does the orientation of the Earth's axis relate to the position of the Sun in the sky?

2. A car traveling at 32m/s slams on the brakes after noticing an obstacle ahead. The car slows down at a constant rate before coming to a stop 4.2 seconds later. How far did the car travel in the 4.2 seconds it took to stop? a. 7.6 m b. 67.2 m C.

What is the mechanical advantage of a machine that exerts a force of 160 N on an object when a person exerts a force of 20 N on the machine?

Suppose your hair grows at the rate of 1/55 inch per day. Find the rate at which it grows in nanometers per second. Because the distance between atoms in a molecule is on the order of 0.

A water skier is pulled behind a boat. When the skis push down on the water, what is the reaction force? A. The skier pulls back on the boat. B. Earth's gravity pulls down on the skis. C. The water pushes up on the skis. D. The boat pulls the skier.

Approximately how much electrical energy does a 5-W light bulb convert to radiant or thermal energy in one hour

If a clock expends 2 W of power from a 1.5 V battery what amount of current is supplying the clock?