SOLUTION: I have a 25mm diameter sphere and need to know its weight in grams and ounces that will have a density of 250 Kg/m3 Also the formulas that were used in the calculations

Question 371877: I have a 25mm diameter sphere and need to know its weight in grams and ounces that will have a density of 250 Kg/m3
Also the formulas that were used in the calculations
Found 2 solutions by mananth, Fombitz:
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
I have a 25mm diameter sphere and need to know its weight in grams and ounces that will have a density of 250 Kg/m3
.
There are two problems combined into one
..
Grams
_____
25 mm = 2.5 cm
radius = 1.25 cm
Volume of sphere = (4/3) *pi*r^3
Density = 250 kg/m^3 = 0.25gram/cu.cm
..
Volume = (4/3)*pi*(1.25)^3
Volume =8.18 cu.cm
Weight = 8.18 * 0.25
= 2.04 grams
...
25 mm = 1" (approx)
radius = 0.5 in.
Volume = (4/3)*pi*(0.5)^3
= 0.523 cu.in
0.25 gram/cm^3= 0.14 ounce/cu.in
weight = 0.523*0.14
= 0.073 ounce
...
m.ananth@hotmail.ca

Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Mass is the product of density and volume.
Convert mm to m to be consistent in units.
The volume of a sphere is,

Then

kg
grams
Then use a conversion of 454 grams=16 ounces

ounces
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