Conduction is a mode of transfer of heat there
Work = Force x Distance = 500 x 4 = 2000 Nm = 2000 J
According to Newton, an object will only accelerate if there is a net or unbalanced forceacting upon it. The presence of an unbalanced force will accelerate an object - changing its speed, its direction, or both its speed and direction.
Attenuation is the correct answer.
