Thanks for the help -qbkr21
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Originally Posted by qbkr21 Thanks for the help -qbkr21 No. you have to convert inches to centimeters before you carry out your calculations. 1 inch = 2.54 cm so your volume is i don't get what you did for the last part. what formula are you using? should you not use weight = mass*gravity ?
Originally Posted by Jhevon No. you have to convert inches to centimeters before you carry out your calculations. 1 inch = 2.54 cm so your volume is i don't get what you did for the last part. what formula are you using? should you not use weight = mass*gravity ? (length)^3 = Volume *Is there a rule that I am missing? Must the length always be in cm before it's cubed? Thanks, qbkr21
Originally Posted by qbkr21 (length)^3 = Volume *Is there a rule that I am missing? Must the length always be in cm before it's cubed? Thanks, qbkr21 That's because the density is given in cm^3, so you have to choose either cm, either inches, but not the 2 at the same time !
I converted the inches to cm and found it to equal 10.16 so... (10.16)^3 = 1048.77 (This now my volume?) So Density = mass/ volume (19.3)/ = (x)/(1048.77) = 20241.3 grams 1 lb. = 453.59 g (20241.3 grams)(1 lb. / 453.59 grams) = 44.6247 lbs. Correct?
Originally Posted by qbkr21 I converted the inches to cm and found it to equal 10.16 so... (10.16)^3 = 1048.77 (This now my volume?) So Density = mass/ volume (19.3)/ = (x)/(1048.77) = 20241.3 grams 1 lb. = 453.59 g (20241.3 grams)(1 lb. / 453.59 grams) = 44.6247 lbs. Correct? looks good. so you didn't use weight = mass*gravity, you used a conversion factor from grams to pounds. ok
Originally Posted by Jhevon looks good. so you didn't use weight = mass*gravity, you used a conversion factor from grams to pounds. ok Suppose I did want to use the formula above weight = mass*gravity... Would I not only have to convert the given inches to meters but also the density for gold 19.3 g/cm^3 to just g/m^3?
Originally Posted by qbkr21 Suppose I did want to use the formula above weight = mass*gravity... Would I not only have to convert the given inches to meters but also the density for gold 19.3 g/cm^3 to just g/m^3? yeah...too much work, huh? your way is fine
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