Answer:
The mechanism of energy transport through a medium involves the absorption and reemission of the wave energy by the atoms of the material. When an electromagnetic wave impinges upon the atoms of a material, the energy of that wave is absorbed.
Answer:
D. A mass extinction may happen when a comet or asteroid impact starts a chain of events that blocks sunlight for weeks or even years.
Explanation:
Mass extinction: An event in the history of the Earth when a large portion of the living species become extinct. Mass extinction has happened a lot of times and every time life finds a way to come back, evolve and adapt to the new conditions.
The proofs of closest extinction can be found in the extinction of dinosaurs. Widely accepted reason behind this extinction is thought to be strike of a comet or an asteroid around 65 million years back. Because of this impact a chain of event started. A lot of dust and gases was filled in the atmosphere which blocked the sunlight to reach Earth for around 2-3 years.
Answer:
The reactive part of a circuit changes electrical energy into another form of energy.
Explanation:
The reactive part of a circuit changes electrical energy into another form of energy.
The inductive part of a circuit changes electrical energy to magnetic energy and the capacitive part of a circuit changes electrical energy to electrostatic energy.
PE = mgh, g= 9.8 m/s^2
10 kg * 9.8 m/s^2 * 300 m
= 29400 J