The four terrestrial planets that have solid, rocky surfaces are

A. Mars, Venus, Earth, and Jupiter.

B. Mercury, Venus, Jupiter, and Mars.

C. Mercury, Jupiter, Saturn, and Mars.

D. Mercury, Venus, Earth, and Mars.

804 n of force are applied to a 51.7 kg. What is the acceleration that the object experiences?

1. What is the science of what matter is made of and how it changes?

Among of energy in a photon of light is proportional to the a. medium through which it travels. b. shape of the light wave it creates c. speed of the corresponding light wave d. frequency of the corresponding light wave

Identify the possible source of earth's magnetic field

If Earth were completely blanketed with clouds and we couldn't see the sky, could we learn about the realm beyond the clouds? What forms of radiation might penetrate the clouds and reach the ground?

4. An airplane must achieve a velocity of 71 m/s for takeoff. If the runway is 1000 m long, what must the acceleration be?

As the average kinetic energy of the particles in a gas increases, which of the following occurs?

Power=170 watts time=20 seconds

What is the charge of alpha, beta and gamma rays?

A pair of scissors is a complex machine. what simple machines make up a pair of scissors?