A 2-kg object is moving with a speed of 4 m/s. How much net force is required to keep the object moving at this velocity? What would be the objects acceleration? Explain. 20 points ??? ASAP PLEASE HELP

Truck traveling west on the highway experiences an acceleration to the east. what could be the cause of this acceleration

Convection currents are caused by differences in what two things?

Abaseball is thrown from the outfield toward the catcher. when the ball reaches its highest point, which statement is true? (a)its velocity is not zero, but its acceleration is zero. (b) its velocity and its acceleration are both zero. (c) its velocity is perpendicular to its acceleration. (d) its acceleration depends on the angle at which the ball was thrown. (e) none of the above statements are true.