Tony uses the device shown in the diagram to model how an electromagnet is used in his uncle’s scrap metal yard.
not sure how to get the diagram - a battery held up by a nail with coiled wire
after picking up several staples with the device, what change would enable tony to drop the staples in the scrap metal bin?
1. removing the
2. removing the iron
3. moving the wire loops closer
4. spreading the wire loops farther

In physics the desire of an object to keep doing what it is doing is termed?

Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 790 n/m. it is initially at rest on an inclined plane that is at an angle of 28 degrees with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is k = 0.14. in the initial position, where the spring is compressed by a distance of a = 0.18 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.

Iwill give brainliest if you answer right : )