Calculate the net acceleration acting on a 50 kg box being pushed across a horizontal floor. There is a 500 N normal force, a 200 N applied force, and a 60 N force of friction resisting any sliding motion. Assume g = 10 m/s2

the average speed is 24.57 km/hr

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.

a is the best answer your welcome