Odpowiedzi

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2010-04-08T20:54:23+02:00
1.
m1= 20 kg
cp1= 10 %
mw= 5 kg
cp2= ?

mr1 ------- 100 %
ms ------- cp1


ms= mr1*cp1/100%
ms= 20 kg*10%/100%
ms= 2 kg

mr2= 20kg + 5 kg= 25 kg

mr2 -------- 100 %
ms -------- cp2

cp2= ms*100%/mr2
cp2= 2kg*100%/25kg
cp2= 4 % !!!



2.
mr1= 30 kg
cp1= 10 %
mw= 10 kg
mr2= 30kg - 10kg= 20kg

mr1 ------- 100%
ms ------- cp1

ms= cp1*mr1/100%
ms= 10%*30kg/100%
ms= 3 kg

mr2 ------- 100 %
ms ------- cp2

cp2= ms*100%/mr2
cp2= 3kg*100%/20kg
cp2= 15 % !!!
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