Afully loaded tractor-trailer traveling at 55 mph could take up to to come to a complete stop.

400 feet would be the correct answer

Hope it helped :3

u=13

v=30

s/t=u+1\2at

=13+431/2

=13+265.5

=278.5

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.