In a physics investigation, students drop a steel ball with a mass of 0.567 grams from a fourth-story window into a large sand pit. The release point is 10.0 m above the ground. Assuming no air resistance, how much kinetic energy does the ball have when it is 3.00 m above the surface of the sand?

answer is c

explanation:

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.

3. dark matter

empty space could also be a simple vacuum