What are the two main sources of energy on earth?

Justin signed a rental agreement for his condo. After he moved out, the owner determined that the condo needed to be cleaned, the cost of which totaled $200. How much of the deposit can Justin expect back?

In creating products from trees, only half of the tree can be used

Two students are having a discussion about the Moon. The first student claims that we always see only one side of the Moon and that the other side is the "dark side." This student also further asserts that the dark side of the Moon is always dark.

Momentum is a measure of the of an object. Which term accurately completes the sentence?

5. For what purpose do bats use ultrasonic waves? O Doppler effect O sonar O echolocation O ultrasound

White light is composed of all the colors of the visible light spectrum. The spectrum is usually said to consist of A) red, blue and green B) red, yellow, blue and green C) red, orange yellow, green, and blue D) red, orange yellow, green, blue, and

What did Ernest Reuther fourths gold foil experiment show about the nature of Atoms

A student pushes on a 20.0 kg box with a force of 50 N at an angle of 30° below the horizontal. The box accelerates at a rate of 0.5 m/s2. What is the value of the friction force on the box? 200 N 50 N 43 N 33 N

How does the kinetic energy of particles vary with temperature

Why is it wrong that igneous always has to become sedimentary because of the rock cycle