if you have to apply 40 N of force on a crowbar to lift a rock that weighs 400 N, what is the actual mechanical advantage of the crowbar?

Does the electric field depend on area?

Explain what it means to view a moving object from a frame of reference. Provide an example that illustrates your explanation.

When an experiment is replicated, how should the results of the two experiment compare?

Which of these is a good example of Newton's First Law of inertia

Scientific notation 325

Why is no energy required in passive transport?

Caleb is often described as absent-minded or forgetful. He would likely benefit from

If you lift a five pound object 18 inches how many joules of energy did yo use?

A temperature of 20°C is equal to °F.

Technician A says that when a fuse has popped, it just needs to be replaced, since it performed its job. Technician B says that when a fuse has blown, the circuit needs to be diagnosed because the fuse was probably not the problem. Who is correct? A.