Two asteroids in outer space collide, and stick together. the mass of each asteroid, and the velocity of each asteroid before the impact, are known. to find the momentum of the stuck-together asteroids after the impact, what approach would be useful?
(1) use the energy principle.
(2) use the momentum principle.
(3) it depends on whether or not the speed of the asteroids was near the speed of light.
(4) use the relationship among velocity, displacement, and time.
(5) it depends on whether the collision was elastic or inelastic.

Explain earth's motion, using the terms "precession" and "rotation" in your answer.

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?

In the nineteenth century, gregor mendel first determined some basic rules of genetics that have been observed throughout all types of life. no observations have disproved these basic rules of genetics. charles darwin developed the idea of biological evolution around the same time, but he was unaware of mendel’s discoveries in genetics. over a century later, darwin’s idea of evolution was modified in order to incorporate mendel’s rules of genetics along with the other evidence that darwin had used. what is most likely the relationship between mendel’s rules of genetics and darwin’s idea of biological evolution? a.)mendel’s genetics states laws that are now part of the theory of biological evolution. b.)biological evolution states laws that are part of mendel’s theory of genetics. c.)mendel’s genetics replaced darwin’s entire concept of biological evolution. d.)biological evolution is a law that explains why all genetics exist.