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The mass of a human is heart is 1.05 grams or kilograms?
Kilograms.
What weighs 24 stone?
A really obese human.
Is a 13-year-old girl who is five feet five inches tall and weighs 140 pounds overweight?
-127
What is the power output of the human heart?
The mechanical power of the human heart is ~1.3 watts. It takes a much higher rate of energy turnover (~13 watts) to provide this mechanical power, since the mechanical efficiency of the heart is very low (less than 10%).
How do you calculate rectangle weight If you have Rectangle area equals 3520000 mm2 and circle area equals 100 mm2 weight circle equals 7gram's?
The reason you're having trouble with this question is that you've allowed yourself to be dazzled by the appearance of "rectangle" and "circle" in it, and the instinctive human fear of geometry has clouded your vision. Forget about 'rectangle' and 'circle'. The question is simply saying: 100 mm2 of paper or foil or sheet-metal weighs 7 grams. How much does 3,520,000 mm2 of it weigh ? Can you do it now ? You could use a proportion: 3,520,000/W = 100/7 . Or you could say to yourself: If 100 weighs 7, then each mm2 weighs 7/100, and 3,520,000 of them must weigh [ (3,520,000) times (7/100) ]. The answer falls right out, and you don't have to know a thing about rectangles or circles. You'll also discover that your rectangle weighs more than 540 pounds !
