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What angle should a solar panel pool heater be set at?
There are two angles to consider: North-South direction and inclination up from horizontal. For best performance, face the solar panel generally south at an inclination of 15 to 30 degrees up from horizontal. This will point the face of the panel nearly directly at the sun. Don't stess over the exact angle, you should be fine as long as its close. Hope this helps... In terms of angle, I have read that you should tilt the panel at an angle equal to your latitude geographically. So, LA is 34 degrees LAT, therefore tilt the panel 34 degress for year round installation. If possible it should be tilted accordingly for seasons. I found a web site with the acronym RSPEC (Reduce Swimming Pool Energy Costs) that suggests the following: The collectors should (ideally) face due south and should be angled based upon your latitude. For heating in the summer months subtract 10-15 degrees from your latitude. For heating in the winter months add 10-15 degrees to your latitude and for year round heating install at your latitude.
When was trigonometry invented?
IT was created in B.C.--- **BEFORE CALCULATION** :D:D:Dlol smiley face :-):D:Total Cow DUMP!It was invented in a town called New Hartley in 1390 Athens Greece.
Volume of triangular prism?
I think first you calculate the area of the triangular face. If you forgot that's ok. The formula is A= bxh divided by 2 which is the same as the area of a triangle is base multiplyed by height and divided by two. Then you need to know the length of the prism(the length of the rectangle)and multiply them together. So your calculation should look like this: Triangular face- A=bxh divided by 2 let's say that the base of the triangle is 5 cm and the height is 12cm Length of prism- let's say the length is 25 cm A=bxh divided by 2 A=5 x 12 divided by 2 A = 20 divided by 2 A = 30 cm squared 30 x 25 = 750cm squared( little 2)
How did Cyclone Tracy get its name?
At that stage, cyclones were named alphabetically as they occurred. Because of the date it occurred, the meteorologists were up to the letter 'T', and Tracy was simply the name that was chosen.There is also some superstition attached to the selection of the name Tracy. Thomas Becket, Archbishop of Canterbury in the mid-1100s, was assassinated on 29 December 1170 by four knights who believed they were acting under the blessing of King Henry II. One of the knights bore the surname of Tracy, and following this act, all people whose surname was Tracy were said to be cursed by the church with the following verse:Wherever by sea or land they go,Forever the wind in their face shall blowPerhaps the meteorologists had this in mind when they named this cyclone Tracy, given its destructive force and high winds, and occurring in the middle of the two dates of Becket's birth and death (December 21 and December 29).
