kalsas ate onl ersity . PHTS A Consumer 3/2017 05:00 PM 44.2/100 Gra -Print Calc
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kalsas ate onl ersity . PHTS A Consumer 3/2017 05:00 PM 44.2/100 Gra -Print Calculator n 10 of 18 Periodic Table Sapling Learning Map A consumer upset with the latest trend of postal rate increases has decided to try to send letters by balloon even though they may not reach their intended destination. A 6.00x10t cm3 gas-filled balloon will provide enough lift for a 41.7 g package to be accelerated upward at a rate of 2.50 m/s2. For these circumstances, calculate the density of the gas the consumer fills the balloon with. The acceleration due to gravity is g- 9.81 m/s2 and the density of air is Par 1.16 kg/m2. Neglect the mass of the balloon material and the volume of the package. kg/m O Previous 9 Check Answer 0 Next nt Exit about us careers privacy policy terms of usExplanation / Answer
along vertical
net force = ma
Fb - rho_gas*V*g - mpackage*g = m*a
Fb = buoyancy force = rho_air*V*g = m*a
mpackage = 41.7 g = 41.7*10^-3 kg
1.16*6*10^4*10^-6*9.81 - (rho_gas*6*10^4*10^-6*9.81) - (41.7*10^-4*9.81) = 41.7*10^-3*2.5
density of gas = 0.913 kg /m^3 <<<<------ANSWER
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