# Question about unit conversion (1 Viewer)

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#### leonne

1. The problem statement, all variables and given/known data
I am giving .15Mo/pc^3 how can i convert that into g/cm^3
mo is solar mass and its in grams and pc is distance so its in cm so wht would i do to convert it?

2. Relevant equations

3. The attempt at a solution
would i just mutiply .15 by the solarmass(1.9e33g) than divide by pc^3 which is (3e18 cm)
so would i do .15((1.9e33/(3e18^3) ?

#### tiny-tim

Homework Helper
hi leonne! (try using the X2 icon just above the Reply box )
would i just mutiply .15 by the solarmass(1.9e33g) than divide by pc^3 which is (3e18 cm)
so would i do .15((1.9e33/(3e18^3) ?
i assume you mean .15((1.9e33/(3e18)^3) ? yes, that's correct …

in dimensions questions like this, you use the conversion factor to the same power as the unit appears it the formula (if it makes you happier, you can check it by writing 1 Mo/pc3 = 1 (Mo/g) (cm/pc)3 g/cm3 )

#### leonne

will do... k thxs for the reply

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