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57% gain. A R30 would be the same as a R19 + a R11 batt.
It can range from R30 000 for a very small, cheap house, to R30 million or more.
5.6 in by 3.8 in
C = pi * 2 * r30 = 3.14159 * 2 * r30 = 6.28318 * rr = 30/6.28318r = 4.77465233 cm
An R1 would be like a window. R30 is about 12" of insulation. The insulation value applies to heat or cold.
14.2857
11,000 lbs
The R30 Series ThinkPad was first introduced in November 2001. Someone that would interested in this specific computer should contact their local IBM dealer.
about 9 1/2 inches thick
R20 000-r30 000
6% of R500 000 = R500 000*6/100 = R30 000
between 6 and 8 south African Rand as far as i am informed