What type of reactions releases energy.

a.

Combustion

b.

Displacement

c.

Double displacement

d.

Synthesis

Do all waves have the same wavelength

How does cardiovascular fitness allow you to exercise longer

A device that makes work easier by changing the size or direction of a force is called what?

John is practicing his drum lessons in the garage. what type of wave is being produced from the vibration of the drum.

What role did gravity play in the formation of the planets? A. The gravitational forces inside small asteroids pushed outward, causing the asteroids to swell to the size of planets. B.

Two kids are on a merry-go-round that is turning at a constant rate. ariel is near the outer edge, and bob is closer to the center. ariel has answer (smaller, the same, or greater angular speed?

Visit this website and locate the element mercury, whose chemical symbol is Hg. Click on the square to read about the history, properties, and uses of mercury. Name three uses for mercury.

Ten seconds after starting from rest, a car is moving at 40 m/s. what is the car's acceleration in meters per second per second?

A student builds a simple circuit and a magnet under one of the circuit wires. When the switch is closed charges flow int the circuit and the wire moves

Cite an example in which a force is exerted on an object without doing work on the object