... Having a tough time with this.
The dimensions are as follows: 20mm*20mm*45mm with a mass of 0.078kg ...
How do I calculate the density. From my work I believe my calculation failed with units of mf dimensions; Hence mm^3 to m^3.
2007-11-28 11:24:44 · 3 answers · asked by bouncing_soul_geuse 2 in Science & Mathematics ➔ Physics
Density is weight divided by volume. In the metric system density is often expressed as grams per cubic centimeter. So here you have a mass of 78 grams and a volume of 2.0cm times 2.0 cm times 4.5 cm or 18 cubic cc. Divide 78 by 18 to get 4.33 grams per cc.
2007-11-28 11:34:42 · answer #1 · answered by Flyboy 6 · 0⤊ 1⤋
Dimensions Of Density
2016-11-02 08:08:51 · answer #2 · answered by ? 4 · 0⤊ 0⤋
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RE:
How to calculate density given dimensions?
... Having a tough time with this.
The dimensions are as follows: 20mm*20mm*45mm with a mass of 0.078kg ...
How do I calculate the density. From my work I believe my calculation failed with units of mf dimensions; Hence mm^3 to m^3.
2015-08-18 14:48:04 · answer #3 · answered by ? 1 · 0⤊ 0⤋
density is mass per unit volume.
the mass is given as 0.078 kg or 78 g
the volume is 20*20*45 = 18000 mm^3
to convert mm^3 to m^3, first find the conversion from mm to m
1000mm = 1m
(1000)^3mm^3 = (1)^3 m^3
so there are 1000000000 mm^3 in one m^3
18000 mm^3*(1 m^3/1000000000 mm^3) = some small number, call it x
then density is 0.078 /x kg/m^3 if that's the units you're looking for.
2007-11-28 11:32:30 · answer #4 · answered by Kevin 5 · 0⤊ 1⤋
d = m/v
v = 20*20*45 or 180 cm3.
mass is 78 grams.
78 / 180 is
density = .4333... grams/cm3
lets hope that the object floats in water.
2007-11-28 11:34:53 · answer #5 · answered by twister 3 · 0⤊ 1⤋
1 mm = .001 m so
20 mm = .02 m
45 mm = .045 m
Density = mass / volume = ( .078 kg ) / ( .02 m ) ( .02 m ) ( .045 m )
2007-11-28 11:31:52 · answer #6 · answered by jgoulden 7 · 0⤊ 1⤋