# arun

Most popular questions and responses by arun
1. ## physics

2) Two objects, A and B, initially at rest, are "exploded" apart by the release of a coiled spring that was compressed between them. As they move apart, the velocity of object A is 5 m/s and the velocity of object B is -2 m/s. What is the ratio of the mass

2. ## math

Find the largest number which divides 630 and 940 leaving remainder 6 and 4 respectively

3. ## chemistry

The volume of 0.025M Ca(OH)2 solution which can neutralise 100ml of0.0001M H3PO4

4. ## Maths

If alpha and beta are zeroes of 4x-5x-1. Find the value of alpha square multiplied by beta

5. ## physics

1) A 1.0 kg mass is attached to the end of a vertical ideal spring with a force constant of 400 N/m. The mass is set in simple harmonic motion with an amplitude of 10 cm. What is the speed of the 1.0 kg mass at the equilibrium position?

6. ## Math

when 4^101+6^101 is divided by 25, the remainder is: (A)20 (B)10 (C)5 (D)0

7. ## physics

1) A 1.0 kg mass is attached to the end of a vertical ideal spring with a force constant of 400 N/m. The mass is set in simple harmonic motion with an amplitude of 10 cm. What is the speed of the 1.0 kg mass at the equilibrium position?

1) A 1.0 kg mass is attached to the end of a vertical ideal spring with a force constant of 400 N/m. The mass is set in simple harmonic motion with an amplitude of 10 cm. What is the speed of the 1.0 kg mass at the equilibrium position?

9. ## physics

1) A 1.0 kg mass is attached to the end of a vertical ideal spring with a force constant of 400 N/m. The mass is set in simple harmonic motion with an amplitude of 10 cm. What is the speed of the 1.0 kg mass at the equilibrium position?

10. ## math

yash invest 1200 in scheme A ,which offers a compd interest at rate of 20% for 2 yrs.he invested a certain sum in scheme B which offers simple interest at rate of 15 % for a period of 3 year. interest received from scheme A Is 42rs more than that received

11. ## math

1) A region is bounded by the line y = x and the parabola y = x2 - 6x + 10. What is the volume of the solid generated by revolving the region about the x-axis?

12. ## science

Animals have three types of muscle tissue. Striated found in arms etc. unstriated found in lining of stomach and cardiac found in the heart. Mention the characteristics of each which justify their presence in the locations mentioned above

13. ## english

write a letter to your friend who affected from tsunami.inquiring and suggesting him about the matter.

14. ## Maths

From a point on a ground the angle of elevation from a tower is observed to be 60 degree. From a point on 40meter vertically above the first point of observation the angle of elevation from a tower is 30degree. Find the height of the tower and horizontal

15. ## trig

The angle of depression of the top and bottom of a tower as seen from the top of a 100m high cliff are 30degree and 60degree respectively. find the height of the tower

16. ## MATH VERY URGENT!!!!!!

1) A ball is hit at an angle of 36 degrees to the horizontal from 14 feet above the ground. If it hits the ground 26 feet away (in horizontal distance), what was the initial velocity? Assume there is no air resistance.

17. ## science

Mass of a body is 25 kg. What is its weight in Newton on earth? The body is carried to a planet whose mass is two times the mass of earth and radius is half that of earth. What will be the mass and weight of the body on the planet? (Take the value of g on

18. ## Science

A piece of wire of resistance R and cut into five equal parts. These parts are then connected in parallel. If the equivalent resistance of this combination is R1 then the ratio of R and R1 is what.

19. ## Probability and statistics

5. The probabilities that the lifetime of a randomly chosen device is below average, average, above average are respectively 0.2, 0.5, and 0.3. The probability that the 3 randomly chosen devices lifetimes of 2 are above average and 1 below average equals

20. ## Probability and statistics

3. To test a lot of its production units, the quality control department of the production company randomly tests 5 different units of the lot and passes the lot if at most 1 of the units are faulty. If exactly 4 of the units of the lot are faulty, the

A ball is hit at an angle of 36 degrees to the horizontal from 14 feet above the ground. If it hits the ground 26 feet away (in horizontal distance), what was the initial velocity? Assume there is no air resistance. math - Henry, Friday, April 8, 2011 at

22. ## Math

A shopkeeper has 500kgof potato he sells 45kg potato on each day find how much potatoes was left after the sellers of 8days

23. ## english

write a report. how plastic are harmful to environment.suggest some ways to keep public places clean.

24. ## Probability and statistics

7. A Continuously running washing machine receives jolts in a Poisson process at an average rate of 5 jolts per hour. The probability that it receives no jolts in given 20 minute run Choose one answer a. e−5 b. e−5/3 c. e−100 d. e−100/3

25. ## math

1) A region is bounded by the line y = x and the parabola y = x2 - 6x + 10. What is the volume of the solid generated by revolving the region about the x-axis?

26. ## statistics

in a shipment of 7 items there are three defective items. at random 4 items are selected what is the expected number of defective items?

27. ## Science

What is the term use to study the satellite television instruction experiment?

28. ## Probability and statistics

The probability that the life time of randomly chosen device is below average, average,above average are respectively 0.2,0.5,0.3. The probability that of the 3 randomly chosen devices lifetimes of 2 are above average and 1 below average equals

1) A region is bounded by the line y = x and the parabola y = x2 - 6x + 10. What is the volume of the solid generated by revolving the region about the x-axis? would u please give the explanation with a detailed steps to the answer because i am not able to

30. ## maths

would you please give the graphical representation of the region bounded by the line y=x and the parabola y=x^2-6x-10?

31. ## math

Write the following expression as the sine, cosine, or tangent of an angle: cos45°cos120° - sin45°sin120°

32. ## Physics

A ball is dropped from the top of the 9th storey building reaches the ground in 3 sec .find the height of the building

33. ## maths

f and g are functions defined as f(x)=5x+6/2x−2 and g(x)=4x/3x−2. What is the value of (f∘g)(4)? Note: f∘g denotes the composition of the 2 functions.

A ball is hit at an angle of 36 degrees to the horizontal from 14 feet above the ground. If it hits the ground 26 feet away (in horizontal distance), what was the initial velocity? Assume there is no air resistance. i have posted the same question earlier

35. ## math

2) A ball is hit at an angle of 36 degrees to the horizontal from 14 feet above the ground. If it hits the ground 26 feet away (in horizontal distance), what was the initial velocity? Assume there is no air resistance.

36. ## math

2) A ball is hit at an angle of 36 degrees to the horizontal from 14 feet above the ground. If it hits the ground 26 feet away (in horizontal distance), what was the initial velocity? Assume there is no air resistance.

37. ## calculas

2) A ball is hit at an angle of 36 degrees to the horizontal from 14 feet above the ground. If it hits the ground 26 feet away (in horizontal distance), what was the initial velocity? Assume there is no air resistance.

38. ## math

2) A ball is hit at an angle of 36 degrees to the horizontal from 14 feet above the ground. If it hits the ground 26 feet away (in horizontal distance), what was the initial velocity? Assume there is no air resistance.

39. ## science

A neckless weighing 50 g in air, but it wheighs 46 g in water . Assume copper is mixed with gold to prepare the neckless. Find out how much of copper is present in it?(specific gravity of gold is 20 and that of copper is 10)

40. ## Medicine

Can I get some information on the useage of Leech Therapy in control of Obesity in Humans with respect to the Anotomy of Leeches?

41. ## Science

How print the multiplication table of a given number

42. ## math

24 girls worked for 3 days and complete in 1/5 of it.20 boys work for next 10 days and complete 2/5 of it.if after 13 days from start of work,24 girls and 20 boys work together,how many days will they take to complete the remaining work?

43. ## Science

What is force

44. ## MATH

cosA=1/2 than cos4A=?

45. ## Maths

Collect marks of 10 of your classmates in different subjects in the recent examination.estimate mean of mark in each sub

46. ## physics

I am 6 feet tall,weigh 69kg slipped and fell flat in 2 seconds,hitting iron bar on side of stairs.What is the force of impact on the soles at the time of impact at the end of 2 seconds? PS:this really happened that has destroyed my soles from the force of

47. ## Sci

Which has minimam pkb

48. ## math

Perimeter of rectangle and a square are equal. Perimeter of the square is 96 cm and breadth of the rectangle is 4 cm less than the side of the square. Then two times the area of the rectangle is

49. ## Probability and statistics

10. The mean of the number of tosses on which a prime number occurs when a balanced dice is tossed 5 times is equal to Choose one answer a. 5/3 b. 3 c. 5/2 d. 2

50. ## Probability and statistics

9. For the data -2,-1,-2, 4, 1, 0; let A denote the sample mean and M denote the sample median. Then Choose one answer a. A=0,M=0 b. A=0,M=-0.5 c. A=0.5,M=0.5 d. A=0.5,M=-0.5

51. ## Probability and statistics

8. A random variable X takes exactly the 5 values 1, 2,3,4,5, all with same probability. The mean of X is Choose one answer a. 2.5 b. 15 c. 7.5 d. 3

52. ## Probability and statistics

6. The probability that at most 3 tosses of a balanced dice are required to get a prime number on top is equal to Choose one answer a. 7/8 b. ¼ c. ½ d. ¾

53. ## Probability and statistics

4. The probability that a prime number occurs on at least 2 tosses when a balanced dice is tossed 5 times independently is equal to. Choose one answer a. 26/32 b. 30/32 c. 6/32 d. 16/32

54. ## Probability and statistics

2. The standard deviation of the number of tosses required to get a 1 when a balanced dice is tossed repeatedly is equal to Choose one answer: a. √6 b. √30 c. 6 d. 30

55. ## Probability and statistics

1. In a City, out of 20000 news paper subscribers, exactly 5000 subscribe to The Hindu. An advertising firm surveys 500 different subscribers of these 20000 subscribers. The random variable X = the number of The Hindu subscribers surveyed by the

56. ## Math

A continuously running washing machine receives jolts in a Poisson process at an average rate of 5 jolts per hour. The probability that it receives no jolts in given 20 minutes run e-5,e-5/3,e-100,e-100/3

57. ## Probability and statistics

The probability that at most 3 tosses of a balanced dice are required to get a prime number on top is equal to a. 7/8, b.1/4, c. 1/2, d.3/4.

1) A ball is hit at an angle of 36 degrees to the horizontal from 14 feet above the ground. If it hits the ground 26 feet away (in horizontal distance), what was the initial velocity? Assume there is no air resistance. i have posted the same question

1. ## Math

30

posted on February 18, 2017
2. ## Math

6x2=12 12/2=12

posted on February 9, 2017
3. ## Maths

0.083

posted on December 27, 2015
4. ## physics

7200kg/

posted on May 12, 2015
5. ## statistics

Letx+y=9 and x-y=5 then 2x=14 x=7 then y=2

posted on April 12, 2011
6. ## algebra 1

n+8n+60=110 n+8n=110-60 9n=50 n=50/9

posted on April 11, 2011
7. ## math

what is this

posted on March 9, 2011
8. ## Statistics

i can learn statistics problems

posted on January 25, 2010