A box sits on a platform supported by compressed spring. The box has a mass of 1.0 kg. When the spring is released, it does 4.9 I of work on the box, and the box flies upward. What will be the maximum height above the platform reached by the box before it begins to fall?

as technology advances, new experiments often expose problems in accepted theories. c

hope i

-lavira: )

beta is electron from nucleus

something from nucleus has changed, but charge must be same for cons of charge

b. false

explanation:

suppose a rock in free fall is dropped off a cliff. after falling for 5 seconds, its speed would not be 100 m/s.