What are examples of non-conservative forces? A)gravity

B)Friction and air resistance

C)potential energy

D)kinetic energy

Aknife blade is a(n) a. lever b. screw c. wedge d. inclined plane

I'm thinking it's 2 you are asked to explain the earth's magnetic field. which is the best reply? 1. the earth's magnetic south is similar to the north pole of a magnet. 2. the earth's core has a strong magnetic charge similar to the south pole of a magnet. 3. the earth's geomagnetic south is similar to the south pole of a magnet. 4. the earth's magnetic charge is not centered at either pole; it varies based on location.

Sound is a disturbance that travels through a medium as a