Acar traveling at 28.0 m/s28.0 m/s hits a bridge abutment. a passenger in the car, who has a mass of 66.0 kg,66.0 kg, moves forward a distance of 56.0 cm56.0 cm while being brought to rest by an inflated air bag. assuming that the force that stops the passenger is constant, what is the magnitude of this force?

Keneila is attempting to ski down a 20 m high friction free hill for the first time. she has a speed 10 m/s at the top. what is her kinetic energy when she is a the bottom, 20 m ? (a)2500 j (b)9800 j (c)12300 j (d)3100j (e)15000j

Transfer chemicals from one location to another to weather objects. a-water b-physical weathering c-chemical weathering

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?