Aphysicist found that a force of 0.68 n was measured between two charged spheres. the distance between the spheres was 1.0m. calculate the force between two spheres when the distance between the spheres was decreased by .50m.

Crowbar of 5 metre is used to lift an object of 800 metre if the effort arm is 200cm calculate the force applied

As part of your daily workout, you lie on your back and push with your feet against a platform attached to two stiff springs arranged side by side so that they are parallel to each other. when you push the platform, you compress the springs. you do an amount of work of 79.0 j when you compress the springs a distance of 0.230 m from their uncompressed length. (a) what magnitude of force must you apply to hold the platform in this position? (b)how much additional work must you do to move the platform a distance 0.230 m farther? (c) what maximum force must you apply to move the platform a distance 0.230 m farther?

Acar is traveling 35 mph on a smooth surface . if a balanced force is applied to the car what happens?