When the atoms electrones step down to lower energy levels in thin cloud of hot gas, what is produced?

How fast does a 3 kg rocket accelerate if a force of 140 N is applied?

Compressed gas has many uses. It can be held in a tank like this with a valve that can be opened to safely release small amounts of gas at a time. The valve usually releases the gas into a tube through which it travels to another container.

Which states of matter have particles that move independently of one another with very little attraction?

What is the period of a sound wave having a frequency of 340hz?

When the burner setting is changed to low the burner continues to produce heat?

Which processes cause rocks to be exposed at Earth's surface? SC. 7 ... 6.2

Compare and contrast the terms melting and freezing

A medical cyclotron used in the production of medical isotopes accelerates protons to 6.5 MeV. The magnetic field in the cyclotron is 1.9 T.

What is the speed of sound in a vacuum?

An object has 60 j of potential energy and 40 j of kinetic energy. then 10 j of the potential energy is converted into kinetic energy. how much work was done on the object?