Why friction made it difficult to discover Newton's first law of motion.

Charge q1 is placed a distance r0 from charge q2. What happens to the magnitude of the force on q1 due to q2 if the distance between them is reduced to r0/4?

A car starting from rest, travels 0.40 km in 11.0 s. What is the magnitude of its constant acceleration?

Which factors affect the gravitational force between objects? Check all that apply. difference in speed of objects direction of movement of objects distance between objects masses of the objects volumes of the objects

A projectile is shot upward at a 60 degree angle with the ground at 200m/s how far has the projectile horizantally gone at the end

Which law explains a soccer player who kicks a ball with his foot and his toes are left stinging?

What characteristic of a planet determines the acceleration due to gravity on it?

Which set of terms best defines what affects kinetic energy and potential energy, respectively? position, gravity gravity, position velocity, height height, velocity

You are operating a powerboat at night. You see green and white lights on another boat. What should you do?

How does Newton's second law apply to an "Egg Drop" experiment?

A 4.0-n puck is traveling at 3.0 m/s. it strikes an 8.0-n puck, which is stationary. the two pucks stick together. their common final speed is: