A student team is to design a human-powered submarine for a design competition. The overall length of the prototype submarine is 4.85 m, and its student designers hope that it can travel fully submerged through water at 0.440 m/s. The water is freshwater (a lake) at T = 15°C. The design team builds a one-fifth scale model to test in their university’s wind tunnel. A shield surrounds the drag balance strut so that the aerodynamic drag of the strut itself does not influence the measured drag. with all the same conditions except that the only facility available to the students is a much smaller wind tunnel. Their model submarine is a one-twenty-seventh scale model instead of a one-fifth scale model. At what air speed do they need to run the wind tunnel in order to achieve similarity? Do you notice anything disturbing or suspicious about your result? Discuss your results

A student team is to design a human-powered submarine for a design competition. The overall length of the prototype submarine is 4.85 m, and its student designers hope that it can travel fully submerged through water at 0.440 m/s. The water is freshwater (a lake) at T = 15°C. The design team builds a one-fifth scale model to test in their university’s wind tunnel. A shield surrounds the drag balance strut so that the aerodynamic drag of the strut itself does not influence the measured drag. with all the same conditions except that the only facility available to the students is a much smaller wind tunnel. Their model submarine is a one-twenty-seventh scale model instead of a one-fifth scale model. At what air speed do they need to run the wind tunnel in order to achieve similarity? Do you notice anything disturbing or suspicious about your result? Discuss your results

Introductory Chemistry For Today

8th Edition

ISBN:9781285644561

Author:Seager

Publisher:Seager

Chapter6: The States Of Matter

Section: Chapter Questions

Problem 6.9E

See similar textbooks

Similar questions

A 5.00 wt% sulfuric acid solution in water has a density of 1.03 g/mL and is flowing through a 45-meter long pipe that has a 6.0 cm diameter at a rate of 82 liters per minute. The average velocity of a fluid in a pipe equals the volumetric flow rate divided by the cross-sectional area normal to the direction of flow. How long in seconds does it take the solution to flow through the 45-meter long pipe?
Salicylic acid and ethanamide were made to react in basic medium to produce aspirin and substance X. A chemist is doing a research regarding the synthesis and have seen in scientific references that the process would produce an expected amount of 8.6 grams of aspirin at 74.2% efficiency given the right condition and amount of starting material: Density Ethanamide: 1.16g/mLD) How many grams of ethanamide should be used? E) What volume of excess ethanamide must be taken from the stock ethanamide solution? F) Show the mechanism of the reaction.OWN SOLUTIONS AND NOT AI FOR UPVOTE
A waste treatment pond is 50 m long and 25 m wide, and has an average depth of 2 m. The density of the waste is 75.3 lbm/ft3 . Calculate the weight of the pond contents in lbf, using a single dimensional equation for your calculation.
Liquid toluene (C7H8) is flowing through a pipe at a rate of 7.85 x 103 kg/min. a. What is the volumetric flow rate of this stream in m3/h? (specific gravity of toluene is 0.866) b. What is the molar flow rate in mol/s? (MM: C=12.00; H=1.01)
If 35,000 kg of whole milk containing 4% fat is to be separated in a 6-hour period into skim milk with 0.45% fat and cream with 45% fat, what are the mass flow rates of the two output streams from a continuous centrifuge which accomplishes this separation? (Ans; Cream=464.8335kg/h, Skim milk= 5368.4998kg/h)
Estimate the Km and vmax from the data. [S] (M) Velocity (µM/min) 2.5 x 10-6 28 .00001 70 .00004 112 .0001 128 .002 139 .01 140 Km=.00001 vmax=140 Km=.002 vmax=112 Km=.01 vmax=140 Km=.00001 vmax=70
Pressures up to 3000 bar are measured with a dead-weight gauge. The piston diameter is 4 mm. What is the approximate mass in kg of the weights required?
In an industrial chemical process, salt solution enters a mixing tank at a rate of 5 kg/s. Industrial water enters the same tank at the rate of 20 kg/s. They are thoroughly mixed together and the diluted solution leaves the tank. If the liquid in the tank is to remain constant, determine the rate of flow of the diluted solution. (Answer in kg/s)
In a metered-dose inhaler (MDI), such as those used for asthma medication, medicine isdelivered by a compressed-gas propellant. (The device is similar in concept to a can of spraypaint.) When the inhaler is activated, a fixed amount of the medicine suspended in thepropellant is expelled from the mouthpiece and inhaled. In the past, chlorofluorocarbons(CFCs) were used as propellants; however, because of their reactivity with the Earth's ozonelayer, they have been replaced by hydrofluorocarbons (HFCs), which do not react withozone. Now HFC use is also being reduced due to their high global warming potential. In one brand of inhalers, the original CFC propellant was replaced by HFC 227ea (C3HF7,heptafluoropropane). The volume of the inhaler propellant reservoir is 1.00×102 mL, and thepropellant is charged into the reservoir to a gauge pressure of 4.443 atm at 23°C. An onlinesearch for properties of HFC 227ea yields the information that the critical temperature andpressure of the substance…
Tooling for a vacuum deposition system is cleaned and reassembled. Unfortunately, a drop of water 0.125 cm3 in volume is left in the bottom of a screw hole. Due to the obstructed path to the pump, a negligible amount of water escapes during the early stages of pumpdown, and the drop becomes a virtual leak at a chamber pressure of 4.3E-06 torr. Find the volume of gas formed by the water at this pressure (assume it stays at room temperature). The density of water is 1g cm-3 and the molecular weight 18 g mole-1. (First, determine the number of moles in the drop of water, and use the ideal gas law to determine the volume)(b) To make this result clearer, what is the added time (in hours) to pump out this chamber due to this droplet if the pump, at that pressure, has a rate of 1480 L/s?
If a 0.50-kg block initially at rest on a frictionless, horizontal surface is acted upon by a force of 2.8 N for a distance of 3.3 m, then what would be the block's velocity? ____ m/s
A vessel of 4m3 volume contains an oil which weighs 30.2KN. Determine the specific gravity of the oil.