The outer core of the earth is primarily made of

A) solid metal.

B) molten metal.

C) primarily water.

D) unknown materials.

Explain why the bright spectral lines of light emitted from the atoms of an element are unique to that element

A location gets its drinking water from wells drilled into the Earth. The people in the location have reported that their drinking water has a foul smell since a few days.

What is static electricity and how does it differ from current electricity

Who invented the clamping mechanism that made elevators significantly safer and led to dramatic changes in cities worldwide?

Flashlight has resistance of 2.4 what voltage is applied by the batteries if the current is 2.5a

Neon, helium, methane, krypton, xenon, hydrogen, and ozone make up & what of the atmosphere

The element in an incandescent light bulb that releases light energy is

Would you expect a hammer and a feather to land on the surface of the moon at the same time

Which of two factors influence the weight of an object due to gravitational pull?

What happens when a lamp plugged into an electrical outlet is turned on? A. Energy is gained. B. The form of energy changes, but the total energy remains the same. C. Energy is lost. D. The form of energy changes and the total energy increases.