He is pushing it to the east out of the parking lot with a force of 250n. jerson, being a good friend, comes to and also pushes east with a force of 75n. if henrys car has a mass of 750kg, what is the cars acceleration

The force it would take to accelerate an 900-kg car at the rate of 6m/s2

Asled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slidesa distance d1 down the slope and then covers the distance d2 alongthe horizontal terrain before stopping. find the coefficient ofkinetic friction μk between the sled and the ground, assumingthat it is constant throughout the trip. find the coefficient of kinetic frictionμk. express your answer in terms of someor all of the variables d1, d2, and θ.

Which scientist was the first to propose the heliocentric model of the universe? a. aristotle b. isaac newton c. galileo galilei d. nicolaus copernicus