I'm not familiar at all with the terminology for mass conversions...
I have a couple of problems like this:
1) The average density of whole milk is 1.034 g cm^-3. What is its density in lb gal^-1?
(That's how it is written on the sheet, with cm to the -3 power and gal to the -1 power)
2) If an oxygen molecule is moving at 4.78 x 10^4cm s^-1, what is its speed in mi hr^-1?
I believe 'g cm' is referring to grams/cm or grams per centimer.
These should be easy problems, but I don't know what they mean by putting units like centimeters to negative powers. I've never encountered that. Does anyone know?
As in the first example with the 1.034 g cm^-3, does that simply mean 1.034 x 10^-3 grams/cm?
I have a couple of problems like this:
1) The average density of whole milk is 1.034 g cm^-3. What is its density in lb gal^-1?
(That's how it is written on the sheet, with cm to the -3 power and gal to the -1 power)
2) If an oxygen molecule is moving at 4.78 x 10^4cm s^-1, what is its speed in mi hr^-1?
I believe 'g cm' is referring to grams/cm or grams per centimer.
These should be easy problems, but I don't know what they mean by putting units like centimeters to negative powers. I've never encountered that. Does anyone know?
As in the first example with the 1.034 g cm^-3, does that simply mean 1.034 x 10^-3 grams/cm?