As you sit in a chair, in what direction (or directions) do you exert an action force?
select one:
a. downward only
b. upward and downward
c. sideways only
d. upward only

Alice added sodium chloride to water and stirred the water for several minutes. alice is most likely trying to demonstrate that ionic compounds a. are hard. b. can dissolve. c. are clear. d. can melt.

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.

An inclined plane wrapped around a metal shaft is a a. lever b. screw c. pulley d. wedge