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How much heat energy is required to raise the temperature of 5 kilograms of coal from 20degree C to 220 degree C?
Q = m*c*delta Tc for coal = 0.24 (depending on its origin)Q = 5*0.24*(220-20) = 240 Joulesc for anthracite coal is also given as 0.201 which will give an answer of 201 Joules
What is full form of n c b?
It used to be the National Coal Board (in the UK).
What is least positive integer that is divisible by each of the integers 1 through 7 inclusive?
what is least positive integer that is divisible by each of the integers 1 through 7 inclusive ? a 420 b 840 c 1260 d 2520 e 5o40
What is 9999999 in Roman numerals?
Ah, that's a big number! In Roman numerals, 9999999 is written as IX CM XC IX. Each letter represents a different value, and when combined, they create this beautiful Roman numeral that tells a story of patience and perseverance. Just like painting a masterpiece, sometimes it takes many small strokes to create something truly magnificent.
3c plus 15 over c squared minus 5 plus c over c plus 5?
(3c +15)/(c2 - 5) + c/(c + 5)= (3c + 15)/(c - 5)(c + 5) + c/(c + 5)= (3c + 15)/(c - 5)(c + 5) + [c(c - 5)/(c + 5)(c - 5)(since the common denominator is (c + 5)(c - 5)= (3c + 15)/(c - 5)(c + 5) + (c2 - 5c)/(c + 5)(c - 5)= (3c + 15 + c2 - 5c)/(c - 5)(c + 5)= (c2 - 2c + 15)/(c - 5)(c + 5)= [(c - 5)(c + 3)]/(c - 5)(c + 5) (simplify)= (c + 3)/(c + 5)
