A 1.0 kg ball has a potential energy of 10 J and falls to the ground. What is the velocity right before it hits the ground? a)20 m/s
b)10 m/s
c)4.5 m/s
d)15 m/s

What happens to the light rays when they hit the specimen?

Acar starts from rest at a stop sign and reaches a velocity of 25 m/s w in 4 seconds. determine the acceleration of the car. question 3 options: a) 6,25 m/s2 b)6.25 m/s c)100 m/s2 d)100 m/s

What is a analogy for transition metals