Silicon is a metalloid (:
Answer:
![A = 1.056\,m^{2}](https://tex.z-dn.net/?f=A%20%3D%201.056%5C%2Cm%5E%7B2%7D)
Explanation:
The portion of solar energy converted into electric energy is given by the following equation:
![\dot E = \eta \cdot I\cdot A](https://tex.z-dn.net/?f=%5Cdot%20E%20%3D%20%5Ceta%20%5Ccdot%20I%5Ccdot%20A)
The area needed to produce energy is derived by clearing the corresponding variable:
![A = \frac{\dot E}{\eta \cdot I}](https://tex.z-dn.net/?f=A%20%3D%20%5Cfrac%7B%5Cdot%20E%7D%7B%5Ceta%20%5Ccdot%20I%7D)
![A = \frac{75\,W }{(0.1)\cdot (710\,\frac{W}{m^{2}} )}](https://tex.z-dn.net/?f=A%20%3D%20%5Cfrac%7B75%5C%2CW%20%7D%7B%280.1%29%5Ccdot%20%28710%5C%2C%5Cfrac%7BW%7D%7Bm%5E%7B2%7D%7D%20%29%7D)
![A = 1.056\,m^{2}](https://tex.z-dn.net/?f=A%20%3D%201.056%5C%2Cm%5E%7B2%7D)
Let's think of an example, water boiling to form steam.
When the water boils, it obviously does not have the same shape, and liquids and gases don't have a definite shape, so shape is not the answer.
To force a phase change, water needs energy in the form of heat, so temperature is also not the answer.
The volume is also changed, and gases take up more space than liquids, so volume is also not the answer.
So, after ruling the other three out, the one we're left with is mass, and that is the answer: mass remains constant during a phase change
Don't hesitate to ask further questions!
Hope I helped!! xx
The first step to take is to check the anemometer to determine the intensity of the wind blowing in the open ocean. The measurement is in terms of knots or nautical miles. Next, we use a Beaufort scale to check what range the knots falls in. Using the scale, we can see what is the height of the wave. The Beaufort scale is used in open oceans only