a force of magnitude 30 n stretches a spring 0.83 m from equilibrium. what is the value of the spring constant?

Acar moves a distance of 50.0 km west, followed by a distance of 64.9 km north what was the magnitude of the displacement of the car, in units of kilometers?

Polly is pushing a box across the floor with a force of 30 n. the force of gravity is –8 n, and the normal force is 8 n. which value could describe the force of friction if polly could not move the box?

During the past 150 years in the united states, how did energy consumption compare to population growth