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7 answers

Density = mass / volume

You are given the density and the [v]olume, you can solve for the mass,

mass = density * volume

but first you need to convert the volume from units of km^3 to m^3.
1 km^3 = 1000 m * 1000 m * 1000 m
1 km^3 = 1 E9 m^3

mass = 3340 kg/m^3 * 2.2 E19 m^3
mass = 7.35 E22 kg.

2006-08-31 04:56:44 · answer #1 · answered by mrjeffy321 7 · 0 0

change the volume to m^3. I think you would just multiply by 1000^3. Then multiply the density and volume so the the m^3 cancel. Yea, that gets you the 7.348e22kg.

2006-08-31 11:53:55 · answer #2 · answered by Anonymous · 0 1

Ozauary has the formula wrong...

M = D X V.

Make sure to convert the km^3 to m^3 before calculating...

2006-08-31 11:57:33 · answer #3 · answered by Epicarus 3 · 0 0

The moon's mass is approximately 7.35e22 kg.

2006-08-31 11:53:39 · answer #4 · answered by Great Master TK 2 · 0 0

density = mass/ vol,
therefore mass = density*vol.

i presume you mean volume and not colume

2006-08-31 12:01:28 · answer #5 · answered by Crazy Taxi 2 · 1 0

3340kg/m^3- times -2.2e10km^3.

my guess 7.35 E25 kg or something close to that

2006-09-01 23:02:54 · answer #6 · answered by ~CS~ 4 · 0 0

Do your own homework...m=d*v

2006-08-31 11:54:39 · answer #7 · answered by ozauary 1 · 1 1

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