A scientist wants to learn more about differences in motion of objects both on the planet earth and on the planet mars. What branches of science should he study?

What must differ between the atom of two different elements? Question 6 options: protons in the atom electrons in the atom neutrons in the atom protons and neutrons in the nucleus

A certain radioactive substance has a half life of one hour. if you start with 1g of the material at noon how much will be left at 3:00 PM?

the amplitude of the wave is which of the following A. Resonance B. Reflection C. Energy D. Magnitude

What are scientific endeavors

Another element is silvery-white with a shiny luster, is very brittle, and forms ions with a - 2 charge. give one possible identity of this element. enter the symbol for the element.

Some headpieces also employ noise reduction technology to eliminate sounds not coming from the earpieces of the stethoscope. How might such technology work?

The barrel of a rifle has a length of 0.886 m. A bullet leaves the muzzle of a rifle with a speed of 623 m/s.

What could be done for Ultimate Frisbee to become as popular as football or basketball?

When a fluid is heated, what changes occur? It becomes less dense and begins to rise. It becomes more dense and begins to rise. It becomes less dense and begins to sink. It becomes more dense and begins to sink.

Which of the following accurately describes properties of valence? A. The greater the number of electrons an atom has to borrow or to lend, the greater the activity of the atom. B.