A trough is the lowest point in a wave.
Answer:
Explanation:
We have here values from SI and English Units. I will convert the units to English Units.
We hace for the power P,
![P= 100kW \rightarrow 100kW*(\frac{737.56ft.lbf/s}{1kW})](https://tex.z-dn.net/?f=P%3D%20100kW%20%5Crightarrow%20100kW%2A%28%5Cfrac%7B737.56ft.lbf%2Fs%7D%7B1kW%7D%29)
![P= 73.7*10^{3}ft.lbf/s](https://tex.z-dn.net/?f=P%3D%2073.7%2A10%5E%7B3%7Dft.lbf%2Fs)
we have other values such
and
(specific weight of the water), and 0.85 for \eta
We need to figure the flow rate of the water (V) out, that is,
![V=\frac{P}{\gamma h \eta_0}](https://tex.z-dn.net/?f=V%3D%5Cfrac%7BP%7D%7B%5Cgamma%20h%20%5Ceta_0%7D)
Where
is the turbine efficiency, at which is,
![\eta_0 = \frac{P}{\gamma Vh}](https://tex.z-dn.net/?f=%5Ceta_0%20%3D%20%5Cfrac%7BP%7D%7B%5Cgamma%20Vh%7D)
Replacing,
![V=\frac{73.7*10^{3}}{62.42*400*0.85}](https://tex.z-dn.net/?f=V%3D%5Cfrac%7B73.7%2A10%5E%7B3%7D%7D%7B62.42%2A400%2A0.85%7D)
![V=3.475ft^3/s](https://tex.z-dn.net/?f=V%3D3.475ft%5E3%2Fs)
With this value (the target of this question) we can also calculate the mass flow rate of the waters,
through the density and the flow rate,
![m=\rho V\\m= 3.475*1.94 \\m=6.7415 slugs/s](https://tex.z-dn.net/?f=m%3D%5Crho%20V%5C%5Cm%3D%203.475%2A1.94%20%5C%5Cm%3D6.7415%20slugs%2Fs)
converting the slugs to lbm, 1slug = 32.174lbm, we have that the mass flow rate of the water is,
![m= 217lbm/s](https://tex.z-dn.net/?f=m%3D%20217lbm%2Fs)
1. liquid solution to a. oceans
2. gaseous solution to b. clouds
Not sure about 3 and 4.
3 might be oxygen but I think that's 5. element.
Hope this helps, not sure about water and air though.
The formula for calculating <em>density </em>is P=M/V where P is the <em>density</em>, M is the <em>mass</em>, and V is the <em>volume</em>.
The problem gives you the <em>mass</em>, 30g, and the <em>volume</em>, 60cm^3;you can plug those into the equation, which should give you P=30/60.
Your answer should end up being P=0.5 g/cm^3.
WORK:
P=M/V
P=30g/60cm^3
P=0.5g/cm^3
Answer:
option D
Explanation:
five
hope it helps you and Mark me down as brainlist