B.
<u>Both use kinetic energy to produce electricity</u> is a similarity between power plants that use water as an energy source and those that use wind as an energy source.
Explanation:
Kinetic energy Is the intrinsic energy that an object or substance possesses due to its motion. All power plants that use water as an energy source utilize the kinetic energy of water to produce electricity. For example, hydro-power plants use the kinetic energy of water flowing due to gravity. Tidal power plants utilize the kinetic energy of water flowing due to tidal changes and geothermal powerplants utilize the energy of steam-water ejecting underground through fissures.
Learn More:
For more on harnessing the power of water to produce electricity check out;
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Scientists can calculate the number of neutrons by subtracting the atomic number from the atomic mass.
they subtract the protons
Potential energy (PEI due to gravity = mgh
Where, m= mass of the billboard, g=gravitational acceleration (9.81 m/s^2), h = height
Therefore,
m= PE/(gh) = 175000/(9.81*30) = 594.63 kg
[H⁺]=6.696 x 10⁻⁵
pH = 4.174
<h3>Further explanation</h3>
Given
The concentration of 0.000295 M
(2.95 x 10⁻⁴ M) butanoic acid solution
Required
the [H+] and pH
Solution
Butanoic acid is the carboxylic acid group. Carboxylic acids are weak acids
For weak acid :
Input the value :
[H⁺]=√1.52 x 10⁻⁵ x 2.95 x 10⁻⁴
[H⁺]=6.696 x 10⁻⁵
pH = - log [H⁺]
pH = - log 6.696 x 10⁻⁵
pH = 5 - log 6.696
pH = 4.174