5.54. 1017 joules of energy is the equivalent of how much mass in kg?
kg

Arowboat passenger uses an oar to push the boat off the dock by exerting a force of 40n for 3.0s. what impulse acts on the boat.

While the change in blank will remain the same during a collision, the force needed to bring an object to a stop can be blank if the time if collision is blank

How do you know how many valence electrons an atom has?