Explain what happens to the particles in a liquid during boiling.

Select the word from the list that best fits the definition classification of most stars on the h-r diagram

True or false: the cycle of seasons on the earth is caused by the tilt of the earth on its axis toward and away from the sun.

Standing side by side ,you and a friend step off a bridge at different times and fall for 1.6s to the water below.your friend goes first,and you follow after he has dropped a distance of 2.0m.when your friend hits the water,is the seperation between the two of you 2.0m or more than 2.0m? verify your answer with a calculation.