<span>The turbine, since it is a rotary engine that turns into mechanical energy the energy of a stream of water, steam or gas. The basic element of the turbine is the wheel or rotor, which has blades, propellers, blades or hubs placed around its circumference, such that the moving fluid produces a tangential force that drives the wheel and turns it. This mechanical energy is transferred through an axis to provide movement of a machine, a compressor, an electric generator or a propeller.</span>
Answer:
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Seems to me that true, observational astronomy began with Tycho Brahe, and after him came Kepler, Newton, Halley, Herschel, all before 1800. So the statement is false.
I'm not completely sure, but I think it's 3.4 newtons. I hope you get it correct.
Answer: 15.6 metres
Explanation:
Given that:
length of wave (λ)= ?
Frequency of wave F = 28 Hertz
Speed of wave (V) = 437 m/s
The wavelength is the distance covered by the wave in one complete cycle. It is measured in metres, and represented by the symbol λ.
So, apply V = F λ
Make λ the subject formula
λ = V / F
λ = 437 m/s / 28 Hertz
λ = 15.6 m
Thus, the length of the wave is 15.6 metres