True or false if a net force acts on an object, the object's speed will change.
an object's velocity will change if a net force acts on the object.
if two object have the same acceleration, they are under the influence of equal forces.
the net force which acts on an object which remains at rest is zero.
a truck initially moving at a constant velocity will slow down unless a small net force is applied
during the collision of a car with a large truck, the car exerts a lesser force on the truck than the truck exerts on the car.

Will give brainliest! jay rides his 2.0-kg skateboard. he is moving at speed 5.8 m/s when he pushes off the board and continues to move forward in the air at 5.4 m/s. the board now goes forward at 13 m/s.a. determine jay’s mass.b. determine the change in the internal energy of the system during this process.(express your answer to two significant figures and include the appropriate units.)

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?

Which describes increasing the efficiency of energy resource