A difference between the two forces is the fact that gravitation only attracts, while electrical forces attract when the electrical charges are opposite and repel if the charges are similar. Thus, gravitation is considered a monopole force, while electrostatics is a dipole force. Please mark me as a brainiest!!!
What a great photo ! The answer is 'diffraction'.
Answer:
25 times greater
Explanation:
Let the mass of the car is m
Initial speed, u = 20 km/h = 5.56 m/s
Final speed, v = 100 km/h = 27.78 m/s
The formula for the kinetic energy is given by
So, initial kinetic energy
Ki = 15.466 m
final kinetic energy
Kf = 385.86 m
Increase in kinetic energy is given by
=
= 385.86 / 15.466 = 25
So, the kinetic energy is 25 times greater.