PV Gap

Ana Said:

What is the average power of a cellular phone?

We Answered:

Well the average output is around 3.7mW. Standby mode uses much less power and can run on a 3.7V 1000mAh battery for about 3-6 days. Your other question need to be more specific, but I can tell you that solar panels are not practical for cell phones. It would make them less mobile/compact. Good luck with that.

Gilbert Said:

Help Solve math equations!!!!?

We Answered:

5b +9b^3 = 9b^3 +5b = b(9b² +5 )

-18y^3 -7y² = y²(-18y -7 )

(2x2+4x) = 2x² +4x = 2x(x +2 )=2(x+2)(x)

4s(s+6)-5(s+6) = 4s² +24s -5s -30 = 4s² +19s -30 =(s+6)(4s-5)

6b^3 +8b² +9b +12 = (3b+4)(2b²+3)

15x² -10x^3 +8x -12 = -10x^3 +15x² +8x -12 = (-2x+3)(x+.8944274)(5x-4.472137)

x² +5x = x(x +5 )=(x+5)(x)

15y^3 +20y -10 = 5(3y^3 +4y -2 ) = 5(y-.4372865)(3y²+1.31186y+4.573658)

-5t² +40t = 5t(-t +8 )=-5(t-8)(t)

4d(d+2)+9(d+2) = 4d² +8d +9d +18 = 4d² +17d +18 =(4d+9)(d+2)

Lisa Said:

10000 watt Solar Panels?

We Answered:

Crudely, for crystalline silicon panels today, 10 watts per square foot is a good budgetary number. The actual panel will be smaller, but you will need space for mounting, and there are always obstructions you need to keep away from.

Christina Said:

Can you help me with this problem?

We Answered:

15000 btus =2 solarpanels
7500 =one solar panel

6 sq.ft. = 1000 btus
7500/1000 = 7.5 sq.ft. x 6 = 45 sqft

10x = 45
x = 45/10
x = 4.5ft --------> width

lets check
4.5x 10 = 45 sq.ft
45sq.ft (1000btus/6sqft) = 7500 btus
7500 btus x 2 = 15000 btus

Answer: dimensions --> 10 ft by 4.5ft.