What did early experiments and coulomb’s law describe? select all that apply. the further away two charged objects are the stronger the electrical force between them. like charges attract and opposite charges repel. the closer two charged objects are the weaker the electrical force between them. the closer two charged objects are the stronger the electrical force between them. like charges repel and opposite charges attract. the further away two charged objects are the weaker the electrical force between them.

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain

Arocket starts from rest and moves upward from the surface of the earth. for the first 10.0 s of its motion, the vertical acceleration of the rocket is given by ay = 12.80 m/s32t, where the +y-direction is upward. (a) what is the height of the rocket above the surface of the earth at t = 10.0 s? b) what is the speed of the rocket when it is 325 m above the surface of the earth?

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?