Consider an ordinary helium-filled party balloon

Assignment Help Chemical Engineering

Reference no: EM13142056

Thrust to weight ratio and Weight Problems
1) If a 22450lb (total gross weight) airplane develops 8160lbf thrust from each of its two engines and has a wing area of 312ft2 and wing-span of 53.5ft. And a empty weight of 11770lbf. Determine the thrust to weight ratio and the wing loading of this aircraft?

2) Consider an ordinary, helium-filled party balloon with a volume of 2.2ft3 . The lifting force on the balloon due to the outside air is the net resultant of the pressure distribution exerted on the exterior surface of the balloon. Using this
fact, Archimedes Principle can be derived, namely that the upward force on the balloon is equal to the weight of the air displaced by the balloon. Assuming the balloon is at sea level, standard atmospheric conditions, calculate the maximum
weight that can be lifted by the balloon.

Note: the molecular weight of air is 28.8 and that helium is 4. What if the helium is replaced by hydrogen, molecular weight of 1?

Reference no: EM13142056

Questions Cloud

Create in good form- a comparative income statement : Create in good form, a comparative income statement, beginning with income from operations, for Melton Corporation for the fiscal years ended.

Probability that selected month had personal call expense : Average of $800 per month and a standard deviation of $50 per month. Find the probability that a randomly selected month had a personal call expense that falls below $650.

How do plants use the products of photosynthesis : Using Glucose as the carbohydrate, explain the relationship between photosynthesis and cellular respiration. How do plants use the products of photosynthesis ?

Pretax accounting income : In 2011,Bodily Corporation reported $300,000 pretax accounting income.The income tax rate that year was 30%.Bodily had an unused $120,000 net operating loss carry forward from 2009 when the tax payable rate was 40%. Bodily income tax payable for 2..

Consider an ordinary helium-filled party balloon : Consider an ordinary, helium-filled party balloon with a volume of 2.2ft3 . The lifting force on the balloon due to the outside air is the net resultant of the pressure distribution exerted on the exterior surface of the balloon.

Calculate the amount of work done on the system : A gas is compressed in a cylinder from a volume of 20 L to 2.0 L by a constant pressure of 10 atm. Calculate the amount of work done on the system.

What are stem cells : What are stem cells? Describe the different kinds of stem cells and the advantages of one over the other.

Labor rate variance and favorable labor efficiency variance : Which of the following is the most probable reason a company would experience an unfavorable labor rate variance and a favorable labor efficiency variance?

Determined for the jacob company bonds : determined for the Jacob Company bonds. Interest is payable on December 1 and June 1. Bond issue costs of $30,000 were incurred. Prepare in general journal format the entry to record the issuance of the bonds.

User Account

All Pages