The answer is the fourth choice because there are 7 represents in a coefficient.
Decreasing the trains velocity will DECREASE the kinetic energy
The meter is the S.I.unit for length.
Answer:
Gravity.The weak force.
Electromagnetism.The strong force.
Answer:
The bigger one. Ignoring air resistance, they will fall at the same speed, but the bigger one will hit first because it sticks out lower.
Explanation: