Answer:
Answer in Explanation
Explanation:
Whenever we talk about the gravitational potential energy, it means the energy stored in a body due to its position in the gravitational field. Now, we know that in the gravitational field the work is only done when the body moves vertically. If the body moves horizontally on the same surface in the Earth's Gravitational Field, then the work done on the body is considered to be zero. Hence, the work done or the energy stored in the object while in the gravitational field is only possible if it moves vertically. This vertical distance is referred to as height. <u>This is the main reason why we require height in the P.E formula and calculations.</u>
The derivation of this formula is as follows:
Work = Force * Displacement
For gravitational potential energy:
Work = P.E
Force = Weight = mg
Displacement = Vertical Displacement = Height = h
Therefore,
P.E = mgh
Answer:
<h3>1. Static electricity is a familiar electric phenomenon in which charged particles are transferred from one body to another. For example, if two objects are rubbed together, especially if the objects are insulators and the surrounding air is dry, the objects acquire equal and opposite charges…</h3>
<h3>2.1) Friction – The rubbing together of surfaces transfers electrons from one object to another. </h3><h3> 2) Conduction – Electrons flow freely through one object to another. Conductors allow charges to move easily .</h3>
Answer:
The answer is <em>15A</em>
Explanation:
Terminal of like polarity are connected with jumpers of negligible resistance
Kirchoff's voltage law gives
E1 -E2 - IR1 - IR2 = 0
I(R1 + R20 = E1 -E2
I= 12 -9/ 0.18 + O.2 = 15A OF CURRENT WILL FLOW THROUGH DISCHARGED BATTERY.