Earth's surface is constantly changing. Volcanoes erupt and form new crust. Lithospheric plate motions bend and crack old crust and cause earthquakes. Where do most of Earth's earthquakes and volcanoes occur?

According to coulomb's law, how would the electrical force between particles change if the product of their electrical charge increased?

Americium-241 undergoes fission to produce three neutrons per fission event. if a neutron-absorbing material is mixed in with this sample so that the rate of neutron production drops down to 1.8 neutrons per fission event, which will be effective at achieving a critical mass? check all that apply. remove a deflective shield surrounding the sample. remove absorbent material mixed in with the sample. compress the sample of americium-241.

At 20°c, a sample of h2o liquid and a sample of co2 gas each have the same average kinetic energy. why is one a liquid and the other a gas at this temperature?