A 4kg car is driving 1m/s when it starts accelerating. If the car has an engine with 50W of power, how fast will the car be traveling after 4 seconds?

:( asap! list all of the items in the item bank and match the definitions correctly.

Samir watches a 100-minute movie on his spaceship. maria's spaceshipe flies in the same direction as samir's spaceship but she observes his move to last 125 minutes and his spaceship to be 40 m long. how long does samir observe his own spaceship to be? according to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does marias voyage take according to samir?

What happens when a rubber rod is rubbed with a piece of fur?