Answer:
D). Insulator —> semiconductor —> conductor—> superconductor
Explanation:
The sequence list of types of materials in order from least conducive to the most conductive is: the insulator, semiconductor, conductor, and superconductor. Conductors are materials where electric current can flow freely; whereas, in insulators, electric current cannot. Examples of conductors are metals and water. Examples of insulators are plastics, papers, and rubbers.
Answer:
The power in this flow is
Explanation:
Given that,
Distance = 221 m
Power output = 680 MW
Height =150 m
Average flow rate = 650 m³/s
Suppose we need to calculate the power in this flow in watt
We need to calculate the pressure
Using formula of pressure
Where, = density
h = height
g = acceleration due to gravity
Put the value into the formula
We need to calculate the power
Using formula of power
Put the value into the formula
Hence, The power in this flow is
The correct answer is (a.) diffuse. The reflection of light waves from a rough surface is called DIFFUSE reflection. This type of reflection reflects light diffusely mostly from a surface that is a non-absorbing material such as plaster and polycrystalline.
10m/s - 3m/s = 7m/s
The resultant velocity is 7m/s