Galileo's discovery shows that, to an observer on Earth, Venus has phases just like Earth's moon. How
did this observation provide support for the
heliocentric model of the solar system?

How many dots must be added to the symbol to properly represent a standard nitrogen ion? a) 1 b) 3 c) 5 d) 8

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.

The coefficient of friction is a number that represents the resistance to sliding between two in contact with one another.