Which number represents the kinetic energy of a 1.0 kg billiard ball that moves at 5.0 m/s? a. 5.0 j b. 6.5 j c. 10.0 j d. 12.5 j

Johnny rode his bike to a friend's house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was not able to play. what was his displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point

Pl as time goes by and water goes through the water cycle again and again, the amount of water on earth: increases decreases ostays the same goes up and down

How do the sperm cells get from the stigma to the ovules?