Which of the following objects will have more kinetic energy? Kinetic Energy =
(Joules)
12 x mass x (velocity)?
(kg) (m/s)
KE = 12 mv
O A 6 kg ball thrown a 8 m/s.
O A 2 kg ball thrown at 15 m/s.
O A 4 kg ball thrown at 10 m/s.

Asample of a gaseous substance changes into liquid. this process is called (blank) and it takes place when heat is (blank) a gaseous system

Alead ball is dropped into a lake from a diving board 5m above the water . it hits the water with a certain velocity and then sink with constant velocity in bottom . it reaches the bottom 5 second after it is dropped if g= 10m/s2 . find depth of the lake and average velocity of the ball ?

This is the substance(s) formed in a chemical reaction.