Which of the following statements is true? The more massive an object, the faster it will accelerate.
The more massive an object, the faster it will free-fall.
Friction occurs in the same direction as an object's motion.
The mass of an astronaut on earth is the same as the mass of an astronaut on the moon.

Which would not reduce the amount of green house gasses in the air

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 diagram correctly demonstrates the various forces acting on a ball moving horizontally with some speed?