The theory of _____ suggests that the crust of the earth is divided into pieces and moves about on the upper mantle.
2 answers:
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C) Total Energy = Potential Energy + Kinetic Energy
Explanation:
The total energy of a system (also called mechanical energy) is given by:
where
PE is the potential energy
KE is the kinetic energy
The two types of energy have a different origin:
- Potential energy (PE) is the energy possessed by an object due to its position. It is commonly in the form of gravitational potential energy, which is the energy due to the position of the object in the gravitational field, defined as:
where m is the mass of the system, g the acceleration of gravity, h the heigth of the object relative to the ground
- Kinetic energy (KE), which is the energy possessed by an object due to its motion. It is calculated as
where m is the mass of the system and v is its speed.
Learn more about kinetic and potential energy:
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Answer:
Explanation:
As we know that when battery is in open circuit then the potential difference of the cell is known as EMF
so EMF is given as
now when the battery is connected across a resistance of 200 ohm then there is current flowing through the battery
it is given as