
True or False ? Justify your answer with a proof or a counterexample.
435. The amount of work to pump the water out of a halffull cylinder is half the amount of work to pump the water out of the full cylinder.

To check: whether the statement, “The amount of work to pump the water out of a half-full cylinder is half the amount of work to pump the water out of the full cylinder” is true or false.
Answer to Problem 435RE
The given statement is false.
Explanation of Solution
Given information:
The given statement is, “The amount of work to pump the water out of a half-full cylinder is half the amount of work to pump the water out of the full cylinder”.
Calculation:
Consider a cylinder of radius
Let
So, the work done to empty the completely filled cylinder is given by,
If the cylinder is half filled, then the work done to empty the half-filled cylinder is given by
Thus,
Therefore, the amount of work to pump the water out of a half-full cylinder is three-fourth the amount of work to pump the water out of the full cylinder.
Conclusion:
Hence, the given statement is false.
Want to see more full solutions like this?
Chapter 6 Solutions
Calculus Volume 1
Additional Math Textbook Solutions
A First Course in Probability (10th Edition)
Elementary Statistics: Picturing the World (7th Edition)
University Calculus: Early Transcendentals (4th Edition)
Calculus: Early Transcendentals (2nd Edition)
Algebra and Trigonometry (6th Edition)
- please do 8.1 q6arrow_forwardIf the price charged for a candy bar is p(x) cents, then x thousand candy bars will be sold in a certain city, where p(x)=158- X 10° a. Find an expression for the total revenue from the sale of x thousand candy bars. b. Find the value of x that leads to maximum revenue. c. Find the maximum revenue.arrow_forward3 The total profit P(X) (in thousands of dollars) from the sale of x hundred thousand automobile tires is approximated by P(x) = -x³ + 12x² + 60x - 200, x≥5. Find the number of hundred thousands of tires that must be sold to maximize profit. Find the maximum profit. The maximum profit is $ when hundred thousand tires are sold.arrow_forward
- A fence must be built to enclose a rectangular area of 5000 ft². Fencing material costs $4 per foot for the two sides facing north and south and $8 per foot for the other two sides. Find the cost of the least expensive fence. The cost of the least expensive fence is $ (Simplify your answer.)arrow_forwardThe number of fish swimming upstream to spawn is approximated by the function given below, where x represents the temperature of the water in degrees Celsius. Find the water temperature that produces the maximum number of fish swimming upstream. F(x) = x3 + 3x² + 360x + 5017, 5≤x≤18arrow_forwardA campground owner has 500 m of fencing. He wants to enclose a rectangular field bordering a river, with no fencing along the river. (See the sketch.) Let x represent the width of the field. (a) Write an expression for the length of the field as a function of x. (b) Find the area of the field (area = length x width) as a function of x. (c) Find the value of x leading to the maximum area. (d) Find the maximum area. x Riverarrow_forward
- A rectangular tank with a square base, an open top, and a volume of 1372 ft³ is to be constructed of sheet steel. Find the dimensions of the tank that has the minimum surface area. The dimensions of the tank with minimum surface area are (Simplify your answer. Use a comma to separate answers.) ft.arrow_forwardWrite an equation for the function graphed below 5+ 4 - -7 -6 -5 -4 -3 -2 -1 y = 3. 2 1 + 1 2 3 4 5 6 7 -1 -3 -4 5 -5+ aarrow_forwardi know that angle ZPY is 55 and arc zy is 110. How is arc wx 125arrow_forward
- Approximate graphically the radius and height of a cylindrical container with volume 50 cubic inches and lateral surface area 75 square inches. h 2лr The radius is in and the height is in. (Round to the nearest hundredth.) h Volume of a cylinder = r²h Lateral area of a cylinder = 2лrharrow_forwardFind the derivative of the following function. -8e5x y= 9x+2arrow_forwardi know that angle ZPY is 55 and arc ZY is 110. How is arc WX 125?arrow_forward
- Elementary AlgebraAlgebraISBN:9780998625713Author:Lynn Marecek, MaryAnne Anthony-SmithPublisher:OpenStax - Rice UniversityElementary Geometry For College Students, 7eGeometryISBN:9781337614085Author:Alexander, Daniel C.; Koeberlein, Geralyn M.Publisher:Cengage,
- College AlgebraAlgebraISBN:9781305115545Author:James Stewart, Lothar Redlin, Saleem WatsonPublisher:Cengage LearningAlgebra and Trigonometry (MindTap Course List)AlgebraISBN:9781305071742Author:James Stewart, Lothar Redlin, Saleem WatsonPublisher:Cengage LearningAlgebra: Structure And Method, Book 1AlgebraISBN:9780395977224Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. ColePublisher:McDougal Littell





