An object in the sky brightens suddenly, but shows no hydrogen lines in its spectrum. it is most likely a (n) :

Which of the following angles is not coterminal with the other three? a. 591° b. 231° c. 51° d. - 129°

Can a magnet ever have a single pole

Saturn is 9.54 au from the sun. what is its distance from the sun in kilometers? a. 14,000,000 km b. 15,723,270 km c. 57,000,000 km d. 1,431,000,000 km

Atom are made of three basic components. Name these three particles.

A person who works in only area of a subject is a

A 500 lb steel beam is lifted up by a crane to a height of 100 ft and is held there. A) How much work is being done to hold the beam in place? B) How much work was done to lift the beam?

If Light is shone through the slits of a card onto a sheet of white paper describe what is seen.

When you break a magnet in half, how many poles does each piece have? Explain.

What can you use to unscrew a tiny screw?

What shoreline feature would develop if the global sea level were to rise considerably