About 4.6 billion years ago, the solar system was nothing more than a cloud of gas and dust known as what?

A. A solar universe

B. A solar Orion

C. A solar accretion

D. A solar nebula

Would the density of a person be the same on the surface of the moon and on the surface of the earth

The force that generates the heat and light produced by the sun and other stars is 1. the electromagnetic force. 2. the weak force. 3. the strong force. 4. the gravitational force.

Which rock type can be formed by adding heat and pressure to any of the three types of rock? a. igneous rock b. no rock type forms this way. c. metamorphic rock d. sedimentary rock

An explosion occurs at the end of a pier. The sound reaches theother end of the pier by traveling through three media: air, freshwater, and a slender metal handrail.

Why do all the electrons in an iron atom not settle together into the lowest energy state? because.?

An unidentified compound contains only oxygen and hydrogen. is it organic?

The of a wave is the bending of a wave as it passes through one medium to another medium.

What's period formula

What is the weight of a 75kg. Mass?

The frequency of the middle d note on a piano is 293.66 hz. what is the wavelength of this note in centimeters? the speed of sound in air is 343.06 m/s.