Why is trapped air a good insulator?

A. It stops heat transfer.

B. It is actually a poor insulator.

C. It reduces heat transfer.

D. It increases heat transfer.

How much heat energy (in megajoules) is needed to convert 7 kilograms of ice at - 9 degrees Celsius to water at 0 degrees Celsius? A) 3.09 MJ B) 2.13 MJ C) 2.48 MJ D) 3.26 MJ

If you were a lunar inhabitant what kinds of eclipses might you expect to see

Which factor affects the force of gravity between objects? Select two options. direction distance mass shape time

Lenz's law states that an induced magnetic field in a conductor

What have been the first step in forming the solar system

Which of the following correctly describes which types of waves travel through which types of mediums? A) Transverse waves travel through solids, liquids, and gases.

Niko was hiking in the mountains when he found a spring, or a place where water naturally flows out of the ground. Where did the water in the spring come from? A. It is water that was squeezed out of an igneous rock when the rock changed. B.

Is mount st. Helen still active today

When a pendulum swings if not continuously pushed it will stop eventually because some of its energy is changef into what energy

How does a car's kinetic energy change when it speeds up from 10 to 20 m/s? a. It quadruples. b. It stays the same. c. It doubles. d. It triples.