Answer:
Electromagnetic induction
Explanation:
The process of generating electric current with a magnetic field. It occurs whenever a magnetic field and an electric conductor move relative to one another so the conductor crosses lines of force in the magnetic field.
Force = -kx
80N=0.15m * -k
K=-80/0.15=533.333. Spring constant
Energy=1/2kx^2
1/2*(-80/0.15)*80^2=Energy
The answer would be a radio wave
The density would increase because you still have the same amount of weight, but it is just packed more tightly in a smaller object.
Well I can't see the following physical properties you talked about in the question.
Mass per unit volume ratio is called density.
