Answer:
a)
, b)
, c)
.
Explanation:
a) Let assume that car travel on a horizontal surface. The equations of equilibrium of the car are:


After some algebraic handling, the following expression for the propulsion force is constructed:



b) The power require to move the car at a speed of 5 meters per second is:



c) The efficiency of the car is:


The letter “j” is never found on the periodic table. As for numbers, there’s an infinite amount
I am not sure if this is the answer you are looking for but a earthquake occurs when the plates shift.
Hope this helped.
Answer:
When two forces acting on an object are equal in size but act in opposite directions, we say that they are balanced forces.
Explanation: