Answer:B.
Both increase as the mass and velocity increase.
The correct answer is the last option. The force that moving, charged particles exert on one another is called electromagnetic force. This force involves physical interaction between two electrically charged particles. It is seen as electromagnetic fields such as electric fields, magnetic fields and light.
D. to be structural material
The mechanical advantage is (4meters) / (0.8meter) = <em><u>5</u></em> .
