Please help!! A balloon contains 7 L of He. The pressure is reduced to 2 atm and the
balloon expands to occupy a volume of 25 L. What was the initial pressure
exerted on the balloon? (round to the nearest whole number)

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

question answered by

(jacemorris04)

just did the assignment and the answer was #1 +2 n

< > according to newton's third law of motion, forces always act in equal but opposite pairs. another way of saying this is for every action, there is an equal but opposite reaction.< >