From Kepler’s third law, a hypothetical planet that is twice as far from the Sun as Earth should have a period of

Which of the following statements correctly describes the law of conservation of energy?

Newton’s version of Kepler’s third law states:  p2 =  × a3Solve this equation to find the combined mass of a planet and its satellite, given the orbital period and average separation.

Consider an atom of gold in which the nucleus contains 79 protons and 118 neutrons. What is its atomic number and atomic mass number?

The wavelength of a wave is

  The negative portion of an atom is called

  The negative portion of an atom is called

Amino acids do NOT contain

Cells are made of _________ and form __________.

The study of tissues is known as: