When is mechanical energy NOT conserved? ANSWER ASAP WILL GIVE BRAINLIEST IF CORRECT A-When you are in outer space

B-When it is cold outside

C-When the electricity is turned off

D-When there is significant friction or air resistance or other force affecting on the object.

hope this helps D.

Explanation:

Mechanical energy may not be conserved when nonconservative forces act. For example, when a car is brought to a stop by friction on level ground, it loses kinetic energy, which is dissipated as thermal energy, reducing its mechanical energy.

A when you are in outer space since there is no gravity the mechanical energy just continues to push the direction it was pointed to  

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.