arun
Most popular questions and responses by arun
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
asked on April 6, 2011 
math
Find the largest number which divides 630 and 940 leaving remainder 6 and 4 respectively
asked on June 2, 2016 
chemistry
The volume of 0.025M Ca(OH)2 solution which can neutralise 100ml of0.0001M H3PO4
asked on August 31, 2015 
Maths
If alpha and beta are zeroes of 4x5x1. Find the value of alpha square multiplied by beta
asked on April 24, 2017 
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?
asked on April 6, 2011 
Math
when 4^101+6^101 is divided by 25, the remainder is: (A)20 (B)10 (C)5 (D)0
asked on August 26, 2016 
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?
asked on April 6, 2011 
physics.....help me please....
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?
asked on April 8, 2011 
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?
asked on April 6, 2011 
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
asked on September 20, 2017 
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 xaxis?
asked on April 6, 2011 
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
asked on May 9, 2018 
english
write a letter to your friend who affected from tsunami.inquiring and suggesting him about the matter.
asked on June 19, 2013 
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
asked on November 6, 2016 
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
asked on December 28, 2013 
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.
asked on April 8, 2011 
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
asked on May 9, 2018 
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.
asked on September 29, 2016 
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
asked on March 2, 2012 
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
asked on March 2, 2012 
maths(urgent....please...)
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
asked on April 9, 2011 
Math
A shopkeeper has 500kgof potato he sells 45kg potato on each day find how much potatoes was left after the sellers of 8days
asked on April 14, 2017 
english
write a report. how plastic are harmful to environment.suggest some ways to keep public places clean.
asked on June 19, 2013 
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
asked on March 2, 2012 
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 xaxis?
asked on April 6, 2011 
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?
asked on January 15, 2016 
Science
What is the term use to study the satellite television instruction experiment?
asked on November 1, 2014 
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
asked on March 1, 2012 
calculas(URGENT..... PLEASE....)
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 xaxis? would u please give the explanation with a detailed steps to the answer because i am not able to
asked on April 12, 2011 
maths
would you please give the graphical representation of the region bounded by the line y=x and the parabola y=x^26x10?
asked on April 11, 2011 
math
Write the following expression as the sine, cosine, or tangent of an angle: cos45°cos120°  sin45°sin120°
asked on April 6, 2011 
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
asked on May 3, 2017 
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.
asked on March 2, 2013 
physics(please help...very urgent.....)
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
asked on April 12, 2011 
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.
asked on April 7, 2011 
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.
asked on April 6, 2011 
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.
asked on April 6, 2011 
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.
asked on April 6, 2011 
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)
asked on May 5, 2010 
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?
asked on September 30, 2008 
Science
How print the multiplication table of a given number
asked on September 12, 2018 
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?
asked on September 20, 2017 
Science
What is force
asked on June 25, 2017 
MATH
cosA=1/2 than cos4A=?
asked on February 18, 2017 
Maths
Collect marks of 10 of your classmates in different subjects in the recent examination.estimate mean of mark in each sub
asked on December 4, 2016 
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
asked on February 7, 2016 
Sci
Which has minimam pkb
asked on March 20, 2015 
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
asked on January 24, 2015 
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
asked on March 2, 2012 
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
asked on March 2, 2012 
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
asked on March 2, 2012 
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
asked on March 2, 2012 
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
asked on March 2, 2012 
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
asked on March 2, 2012 
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
asked on March 2, 2012 
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 e5,e5/3,e100,e100/3
asked on March 1, 2012 
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.
asked on March 1, 2012 
maths(urgent....please...)
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
asked on April 12, 2011

Math
30
posted on February 18, 2017 
Math
6x2=12 12/2=12
posted on February 9, 2017 
Maths
0.083
posted on December 27, 2015 
physics
7200kg/
posted on May 12, 2015 
statistics
Letx+y=9 and xy=5 then 2x=14 x=7 then y=2
posted on April 12, 2011 
algebra 1
n+8n+60=110 n+8n=11060 9n=50 n=50/9
posted on April 11, 2011 
math
what is this
posted on March 9, 2011 
Statistics
i can learn statistics problems
posted on January 25, 2010