PCm

A freight car, open at the top, weighing 2.80 tons, is coasting along a level track with negligible friction at 4.10 ft/s when it begins to rain hard. The raindrops fall vertically with respect to the ground. What is the speed (in feet/second) of the car...

Add up all the marvels and then divide the number of green balls by the total. 10/(#ofgreen+#ofred+#ofblue). If you want it as a percent just multiply the decimal by 100. I would look like {10/(#ofgreen+#ofred+#ofblue)} *100

Use the quotient rule. (DN'-D'N)/(D)^2 D=denominator D'=derivative of denominator N=numerator N'=derivative of numerator

use the ideal gas law by solving for volume v=nRT/p= (.908mol)(.08206)(381K)/(.858atm)=??? R=.08206 latm/molK Temperature needs to be converted to Kelvin K=108+273