Answer / priya

But still no calculus is needed, well, not really...

Now, suppose you set out to answer the question in the absence of such specific direction as to how the answer should be given. We're going to set this sphere down on an x-axis centered right down the middle of the cylindrical hole.

let x=0 be the center of the sphere,
let r be the radius of the sphere, and
let h be the radius of the cylindrical hole.

The relationship between h and r, which we'll need later, is h² + 3² = r²

Now consider this slice of the holey sphere: Plane P is perpendicular to the axis of the hole at a directed distance of "x" from the center of the sphere, -3 ≤ x ≤ 3. The slice is the intersection of plane P with the sphere and its interior, minus the cylindrical hole: an annulus, the area bounded by a pair of concentric circles.

The radius of the smaller circle is h, and the radius of the larger circle is sqrt(r²-x²)

So the area of this slice is π(r²-x²)-π(h²) = π(r²-x² -h²)

Since r²=h²+3², (remember?), the area of this slice is π(h²+3²-x²-h²) = π(3²-x²)

This is the same as the area of a slice through a sphere of radius 3 with no hole, or with a hole whose radius is zero.

Since the cross-section area at distance x from the center of the holey sphere is the same as the cross-section area at the same distance from the center of an ordinary sphere of radius 3, it follows that the volume of the holey sphere, which is the integral of all these cross-section areas, is the same as the volume of the ordinary sphere.

The answer is (4/3)π(3³) = 36π

Answer / shyam

volume of a sphere is 4/3 * pi * r^3
by drilling a hole 6 inches long the volume of the sphere is
not affected bcos the hole is a 1 dimension quantity..(say a
straight line) n so it does not have any value w.r.t volume...

hence the volume of the sphere does not change..

Answer / udit

volume of sphere will not be affected, because drilling is
done through the hole of sphere.

write a program for Print the outputof 0 0 * 0 0 0 * 0 * 0 * * * * * 0 * 0 * 0 0 0 * 0 0

2 Answers  

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hash function,hash table,linked list,binary tree traversal

3 Answers   Syncfusion, University Exams,

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can anyone please tell me the written test pattern for FIDELITY (for incampus)for freshers......

0 Answers   CAT, TCS,

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Argentina had football team of 22 player of which captain is from Brazilian team and goalki from European team. For remaining player they have picked 6 from Argentinean and 14 from European. Now for a team of 11 they must have goalki and captain so out of 9 now they plan to select 3 from Argentinean and 6 from European. Find out no. Of methods available for it

0 Answers   Cognizant,

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All of the tickets for 2 music concerts, X and Y, were either purchased or given away, and the ratio of X tickets to Y was 2 to 1. Of the total number of X tickets and Y tickets, what percentage was purchased? 1) The total number of X tickets and Y tickets, is 240. 2) Of the X tickets, exactly 60% were purchased, and of the Y tickets, exactly 80% were purchased. a) if statement (1) ALONE is sufficient, but statement (2) alone is not sufficient to answer the question. b) if statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question. c) if BOTH statements (1) and (2) TOGETHER are sufficient to answer the question asked, but NEITHER statement ALONE is sufficient. d) if EACH statement ALONE is sufficient to answer the question asked. e) if statements (1) and (2) TOGETHER are NOT sufficient to answer the question asked, and additional data specific to the problem are needed.

0 Answers   Valtech,

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CROSS+ROADS=DANGER.what is the value of D+A+N+G+E+R ?

5 Answers   Infosys,

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Direction for Qn 9-12 Five teams participated in Pepsi Cup. Each team played against each other. The top teams played finals. A win fetched 2 pts and a tie 1 point 1) South Africa were in the finals 2) India defeated SA but failed to reach the finals 3) Australia lost only one match in the tournament 4) The match between India and Sri Lanka was a tie 5) The undefeated team in the league matches lost in the finals 6) England was one of the best teams that did not qualify 9. Who were the finalists? i. SA & India ii. Aus & SL iii. SA & SL iv. none 10. Who won the finals? i. Aus ii. SL iii. SA iv. Can't be determined 11. How many matches did India Win? i. 0 ii. 1 iii. 2 iv. can't be determined 12. What was the outcome of the India England Match i. India won ii. England won iii. It was a tie iv. Can't be determined Direction for Qn 13-14 These qns are based on situations given below: 7 Uni crick players are to be honored at a special luncheon. The players will be seated on a dais along one side of a single rectangular table. A and G have to leave the luncheon early and must be seated at the extreme right end of table, which is closest to exit. B will receive Man of the Match and must be in the centre chair C and D who are bitter rivals for the position of Wicket keeper dislike one another and should be seated as far apart as possible E and F are best friends and want to seat together. 13. Which of the foll may not be seated at either end of the table? i. C ii. D iii. G iv. F 14. Which of the foll pairs may not be seated together? i. E & A ii. B & D iii. C & F iv. G & D Direction for Qn 15-18 An employee has to allocate offices to 6 staff members. The offices are no. 1-6. the offices are arranged in a row and they are separated from each other by dividers>hence voices, sounds and cigarette smoke flow easily from one office to another Miss R needs to use the telephone quite often throughout the day. Mr. M and Mr. B need adjacent offices as they need to consult each other often while working. Miss H is a senior employee and his to be allotted the office no. 5, having the biggest window. Mr D requires silence in office next to his. Mr. T, Mr M and Mr. D are all smokers. Miss H finds tobacco smoke allergic and consecutively the offices next to hers are occupied by non-smokers. Unless specifically stated all the employees maintain an atmosphere of silence during office hrs. 15. The ideal candidate to occupy office farthest from Mr. B will be i. Miss H ii. Mr. M iii. Mr. T iv. Mr. D 16. The three employees who are smokers should be seated in the offices i. 1 2 4 ii. 2 3 6 iii. 1 2 3 iv. 1 2 3 17. The ideal office for Mr. M would be i. 2 ii. 6 iii. 1 iv. 3 18. In the event of what occurrence within a period of one month since the assignment of the offices would a request for a change in office be put forth by one or more employees? i. Mr D quitting smoking ii. Mr. T taking over duties formally taken care of by Miss R iii. The installation of a water cooler in Miss H's office iv. Mr. B suffering from anemia Direction for Qn 19-20 A robot moves on a graph sheet with x-y axes. The robot is moved by feeding it with a sequence of instructions. The different instructions that can be used in moving it, and their meanings are: Instruction Meaning GOTO(x,y) move to pt with co-ord (x,y) no matter where u are currently WALKX(P) move parallel to x-axis through a distance of p, in the +ve direction if p is +ve and in -ve if p is -ve WALKY(P) move parallel to y-axis through a distance of p, in the +ve direction if p is +ve and in -ve if p is -ve 19. The robot reaches point (5,6) when a sequence of 3 instr. Is executed, the first of which is GOTO(x,y) , WALKY(2), WALKY(4). What are the values of x and y?? i. 2,4 ii. 0,0 iii. 3,2 iv. 2,3 20. The robot is initially at (x.y), x>0 and y<0. The min no. of Instructions needed to be executed to bring it to origin (0,0) if you are prohibited from using GOTO instr. Is: i. 2 ii. 1 iii. x + y iv. 0 Direction for Qn 21-23 Ten coins are distr. Among 4 people P, Q, R, S such that one of them gets a coin, another gets 2 coins,3rd gets 3 coins, and 4th gets 4 coins. It is known that Q gets more coins than P, and S gets fewer coins than R 21. If the no. of coins distr. To Q is twice the no. distr. to P then which one of the foll. is necessarily true? i. R gets even no. of coins ii. R gets odd no. of coins iii. S gets even no. of coins iv. S gets odd no. of coins 22. If R gets at least two more coins than S which one of the foll is necessarily true? i. Q gets at least 2 more coins than S ii. Q gets more coins than P iii. P gets more coins than S iv. P and Q together get at least five coins 23. If Q gets fewer coins than R, then which one of the foll. is not necessarily true? i. P and Q together get at least 4 coins ii. Q and S together get at least 4 coins iii. R and S together get at least 5 coins iv. P and R together get at least 5 coins Direction for Qn 24-25 Elle is 3 times older than Zaheer. Zaheer is ? as old as Waheeda. Yogesh is elder than Zaheer. 24. What is sufficient to estimate Elle's age? i. Zaheer is 10 yrs old ii. Yogesh and Waheeda are both older than Zaheer by the same no of yrs. iii. Both of the above iv. None of the above 25. Which one of the foll. statements can be inferred from the info above i. Yogesh is elder than Waheeda ii. Elle is older than Waheeda iii. Elle's age may be less than that of Waheeda iv. None of the above

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c=a/b ; a-1=c What is the relation between a&b

6 Answers   Mascot,

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What Is Kyc?

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A is driving on a highway when the police fines him for overspeeding and exceeding the limit by 10 km/hr. At the same time B is fined for overspeeding by twice the amount by which A exceeded the limit. If he was driving at 35 km/hr what is the speed limit for the road?

1 Answers   Accenture,

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Convert the following infix expression to post fix notation ((a+2)*(b+4)) -1 (Similar types can be asked)

1 Answers  

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hi, i have filled up the EPFO exam form i m bsc chemsitry graduate so can any1 guide me wat all questions will be asked in office work aptitue??? so thati can do my preparation in exam???

6 Answers   Vodafone,

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