The iron-rich core of the moon is thought to be about how many kilometers in diameter?

Identify the amplitude on the diagram and give the correct description. question 3 options: a because amplitude is the distance from wave crest to wave crest. b because the wavelength shows amplitude. c because amplitude is the distance between a crest (or trough) and rest. d because wavelength show amplitude. (brainiest if you get it right! ) ~kayla

What color would an object that reflects green and blue light appear to be in white light? a. blue b. cyan c. magenta d. black

If a sphere and a cure have the same mass and are propelled up a ramp with the same force, which would travel father up the ramp? explain.