Why does the moon orbit earth? a. the moon is less dense than earth. b. the mass of earth is much greater than the moon. c. the moon came into orbit around earth after earth was established. d. the velocity of the moon in orbit is faster than the velocity of earth in orbit around the sun. a. about 41.4 trillion n b. about 42.5 trillion n c. about 65.2 trillion n d. about 74.0 trillion n

There is a theory that indicates that dinosaurs became extinct when about 65 million years ago, a large asteroid hit the earth surface. dust caused by this collision blocked the sunlight reaching the earth's surface and many forms of life became extinct due to the cold. fearing this threat, how large the radius of an asteroid should you be looking for if the dangerous asteroid size is approximately the same as the one that killed the dinosaurs? available data suggests that about 18% of that asteroid's mass ended up as a dust spread evenly over earth after eventually settling out of the upper atmosphere. about 0.0180 g/cm^2 of dust, which is chemically different than the earth's rock, covered the earth's surface. typical asteroids have a density of about 1.9 g/cm^3. now that we know the size of the asteroid, how much energy was released during impact, assuming all of it was just the kinetic energy of the asteroid right before the impact?

Which of the following is the result of the nuclear weak force? the instability of large nuclei the repelling force between positively charged protons the structure of the atom certain types of nuclear decay

Is the time in tennessee the same as florida