In this case, wouldn'y it be the cosine? If you look at this graph, where [bC] is the board, it seems that the projection of the area onto the perpendicular surface is the cosine,isn't it?
hello,
I'd like to know how does the solar radiation received on a flat surface vary if we change the angle of it.
To simplify, if I've got a board of 1*1meters (at 0º -parallel to the ground-) and it is receiving 1Kw/h, the sun being at 90º, how will it received if I turn it 10º?
Thank you
Jaime
Thank you for your answer,
I didn't thought that it would be interesting to comparemy problem with the Euler path. Do you know if there is a computer program that could help me find the answer (I've found this but it isn't really what I'm searching for as it passes through all the vectors I draw (http://www.math.okstate.edu/~wrightd/1493/euler/)?
By the way the best circuit is the one that uses the least lenght of connection.
Happy new year
Hello,
I have thought of this math problem I haven't been able to solve, but it must have a simple solution.
We have an undefined (either even or odd) number of line segments and we want to connect their end dots except two of them (for all the set -like if a fluid could get in by the unconnected dot, pass through all the segments and connections and them go out by the other unconnected dot).But there is an imposition: the connection cannot connect two segments that are side by side. Here is an uncompleted sketch
-How can we know wherever it is better to have an odd number of li
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