a bird has a mass of .2kg and is flying 10 m above the ground with a speed of 7 m/s. what is the total mechanical energy?

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

Ahypothesis is? close agreement by competent observers of observations of the same phenomena. a guess that has been tested over and over again and always found to be true. an educated guess that has yet to be proven by experiment. the long side of a right triangle. a synthesis of a large collection of information that includes guesses.

Which of these statements is true? a. quarks pair with leptons to form protons and neutrons. b. quarks pair with bosons to form photons. c. quarks pair with photons to form protons and neutrons. d. quarks pair with other quarks to form protons and neutrons. e. quarks pair with electrons to form protons.