1- Given a mold in spherical form, alumina slip will be poured by solid casting method...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
1- Given a mold in spherical form, alumina slip will be poured by solid casting method in order to build cannon balls in classical style. The sphere diameter D = 20 cm. and the thickness increase rate (dx/dt) of alumina is equal to inner surface area (with a rate constant k) where the liquid (slip) is in contact with it. SLIP (Liquid) PLASTER MOULD D = 20 cm R SOLD ALUMNA a) Derive the differential equation (5 P), and find the general solution (5P) b) An hour is passed for the liquid (or solid alumina) volume reaches to half of the mold cavity (where r= 0.794Ro) calculate the rate constant k, write its unit (5P) c) Prove r = 0.794R, after 1 hour (5P) d) For r = 0.1 cm (practically no liquid remains), calculate the time necessary (5P) Assume that a worker feeds the slip from top when the level decreases and omit the effect of gravitation. 1- Given a mold in spherical form, alumina slip will be poured by solid casting method in order to build cannon balls in classical style. The sphere diameter D = 20 cm. and the thickness increase rate (dx/dt) of alumina is equal to inner surface area (with a rate constant k) where the liquid (slip) is in contact with it. SLIP (Liquid) PLASTER MOULD D = 20 cm R SOLD ALUMNA a) Derive the differential equation (5 P), and find the general solution (5P) b) An hour is passed for the liquid (or solid alumina) volume reaches to half of the mold cavity (where r= 0.794Ro) calculate the rate constant k, write its unit (5P) c) Prove r = 0.794R, after 1 hour (5P) d) For r = 0.1 cm (practically no liquid remains), calculate the time necessary (5P) Assume that a worker feeds the slip from top when the level decreases and omit the effect of gravitation.
Expert Answer:
Answer rating: 100% (QA)
Solutions Step 1 a Deriving the differential equation and finding the general solution Let R0 initial radius of the mold 10 cm r radius of the liquid ... View the full answer
Related Book For
Cornerstones of Financial and Managerial Accounting
ISBN: 978-1111879044
2nd edition
Authors: Rich, Jeff Jones, Dan Heitger, Maryanne Mowen, Don Hansen
Posted Date:
Students also viewed these mechanical engineering questions
-
a codon,GGG code for glycine in snake. In huma, glycine will code by 1. AAA 2.GGG 3.CCC 4.UUU 5. TTT
-
QUIZ... Let D be a poset and let f : D D be a monotone function. (i) Give the definition of the least pre-fixed point, fix (f), of f. Show that fix (f) is a fixed point of f. [5 marks] (ii) Show that...
-
Let A, B be sets. Define: (a) the Cartesian product (A B) (b) the set of relations R between A and B (c) the identity relation A on the set A [3 marks] Suppose S, T are relations between A and B, and...
-
Reisen Travel offers helicopter service from suburban towns to John F. Kennedy International Airport in New York City. Each of its 10 helicopters makes between 1,000 and 2,000 round-trips per year....
-
A researcher uses a matched-subjects design to investigate whether single people who own pets are generally happier than singles without pets. A mood inventory questionnaire is administered to a...
-
Discuss the difference between existence dependency and identification dependency.
-
Sprague Company is considering developing a new product. The company has gathered the following information on this product. Expected total unit cost Estimated investment for new product Desired ROI...
-
Taft Industries recognized the annual cost of depreciation on its December 31, 2015, financial statements. Using the following horizontal financial statements model, indicate how this event affected...
-
nework.aspx?homeworkId=643828276&qu Question 10 Part 1 of 3 own on the right and the given information t find a, c, and B
-
Vessels A and B contain water under pressures of 276 kPa and 138 kPa, respectively. What is the deflection height of the mercury, h, in the differential manometer gauge in Figure 5?
-
Gardendale Associates offers landscape consultations, where they provide design advice and plans to residential customers. A single consultation is priced at $750.00. The variable costs of a...
-
2-15 Suppose that three coordinate frames 01x1 y121, 02292 22, and 0303y323 are given, and suppose R 1 0 0 00 1 R 0 1 0 0 10 0 Find the matrix R
-
Elean Schenandore purchased 300 shares of CY Energy stock online and paid a total of $8,484.95. She sold thestock at $39.94 per share and paid a $39.95 sales commission. a) What was the net amount of...
-
There is an overpressure p inside the spherical pressure vessel. The wall thickness t of the vessel can be assumed to be small compared to the radius r of the sphere. The radius is measured at the...
-
What is the role of the Automated Clearing House (ACH) in payment processing? . 10. What is the impact of payment fraud on the finance industry? 11. What is a point-of-sale (POS) system and how does...
-
A torque T = 40 kip - in. is applied at end A of the composite shaft shown. Knowing that the modulus of rigidity is 11.2 106 psi for steel and 4 106 psi for aluminum, determine (1) (4pts) the maximum...
-
PLEASE HELP! The unadiusted trial balance of Pronghorn Inc.. at the companv's vear end of December 31, follows:Additional information and adjustment data: 1. A 12-month insurance policy was purchased...
-
The 2017 financial statements of the U.S. government are available at: https://www.fiscal.treasury.gov/fsreports/rpt/finrep/fr/fr_index.htm Use these to answer the following questions: a. Statement...
-
Refer to the information for Zapato Company above. The following activity data have been collected: Cutting ........... $ 60,000 Assembling ......... 75,000 Inspecting ........... 18,000 Reworking...
-
At the beginning of the year, Kullerud Manufacturing had a credit balance in its allowance for doubtful accounts of $6,307 and at the end of the year it was a credit balance of $9,000. During the...
-
What are job-order costing and process costing? What types of firms use job-order costing? Process costing?
-
Time value is the anticipation of intrinsic value being stronger than it is now. However, intrinsic value can drop. Why then can time value not be negative?
-
In concrete terms, what does the difficulty in valuing an option boil down to?
-
Show how the purchase of an option and the sale of another option can protect you against the risk of a drop in the value of the underlying share, without costing you anything if you give up the...
Study smarter with the SolutionInn App