Which of the following statements about subatomic particles is TRUE? a
protons weigh more than electrons and neutrons
b
protons weigh less than electrons and neutrons
c
electrons weigh more than protons and neutrons
d
neutrons have no weight

The famous scientist galileo galilei did several experiments with sloping planes, which he rolled metal balls down so that he could study motion. by changing the slope, he could study how the speed at which the ball rolled was affected. what was the independent variable in galileo's experiment? a. the speed of the ball b. the slope of the plane c. whether the ball moved d. what the ball was made of

Mercury metal is poured into a graduated cylinder that holds exactly 22.5 ml the mercury used to fill the cylinder mass in 306.0 g from this information calculate the density of mercury

37.0 °c = °f (human body normal temperature)