Popular questions and responses by pooja
  1. Physics

    Three particles have charges +20μC each.They are fixed at the corners of an equilateral triangle of side 0.5m .The force on each of particle has magnitude

    asked on April 25, 2017
  2. math

    A solid wooden cube is painted blue on the outside. The cube is then cut into 27 smaller cubes of equal size. What fraction of the total surface area of these new cubes is blue?

    asked on April 21, 2017
  3. If alpha

    If alpha& beta are the zeroes of the polynomial 2x2-7x+3. Find the sum of the reciprocal of its zeroes

    asked on June 17, 2016
  4. maths-probability

    The diagram shows a spinner with six numbered sections.(where it has number 2 twice, # 1 triple & # 6 once ) Some of the sections are shaded. Each time the spinner is spun it stops on one of the six sections. It is equally likely that it stops on any one

    asked on March 17, 2012
  5. Science

    What is the equivalent weight of HCL in given reaction : k2cr2o7+14hcl=2kcl+2crcl3+3cl2+h2o

    asked on March 30, 2019
  6. Science

    Write the balanced chemical reactions using the appropriate symbols​

    asked on June 15, 2017
  7. math

    Given is the Income Statement for the year ended December 31, 2015, Statement of Retained Earnings for the year ended December 31, 2015 and Comparative Balance Sheets for 2014 and 2015 of Maris Corporation: Maris Corporation Income Statement Year Ended

    asked on September 17, 2017
  8. Biology

    If gene frequency for PTC nontaster is 0.4, then what will be the number of heterozygotes tasters in a population?

    asked on April 12, 2017
  9. chemistry

    concentrated aqueous sulphuric acid is 98% sulphuric acid by mass and has a density of 1.80 g/l. Volume of acid required to make one litre of 0.1M sulphuric acid solution is

    asked on July 31, 2013
  10. math

    DRAW a line l construct a line p such that lparallel ro p is at a distance of 3.5cm from l

    asked on March 20, 2011
  11. chemistry

    1. name the three fundamental particles present in an atom? mention the masses of the particles in M.K.S. system? 2.what is a proton? stste its relative mass and charge? 3.how many times a proton is heavier than an electron? 4.what important information

    asked on May 4, 2012
  12. Physics

    Hi guys, Im a bit stumped on how to solve an online physics homework problem and it's really bothering me. I have no idea how to come up with the angles or even attempt the problem and neither do my friends. We'd all really appreciate it if someone could

    asked on November 27, 2008
  13. Math

    A bag contains 2 red, 2 blue, and 2 green marbles, Sue takes one marble at a time from this bag without looking. What is the least number of marbles Sue must take from this bag to be sure that she has taken 2 marbles of the same color? A) 2 B)3 C)4 D)6

    asked on October 26, 2008
  14. Maths

    Integration of sine square theta from 0 to 2pi

    asked on May 7, 2018
  15. Chemistry

    Show that the reaction caco3 ->cao+co2 is not a redox reaction

    asked on November 13, 2015
  16. maths

    An isosceles right triangle has a hypotenuse of 18m. Find the other two sides?

    asked on January 16, 2015
  17. chemistry

    1.what is meant by atomic number of an element? 2.the mass number of an element is 18,it contains 7 electrons.what is the number of protons and neutrons in it?what is the atomic number of the element? 3.an element has an atomic number of 11 and its mass

    asked on May 4, 2012
  18. chemistry

    what is the shape of p-orbital.........

    asked on May 3, 2012
  19. maths

    from the top of a light house the angle of depression of a ship sailing towards it was found to be 30 degrees . after 10 seconds the angle of depresion changes to 60 degrees. assuming that the ship is sailing at uniform speed. find how much time it will

    asked on November 8, 2011
  20. integrated science

    what is soil profile?

    asked on May 2, 2017
  21. Math

    Find area of rectangle whose length is 3 cm and 1 diagnal is 5 cm

    asked on February 20, 2017
  22. science

    What is the balanced molecular equation for titration of oxalic acid?

    asked on January 29, 2017
  23. physics

    Whn sand is poured on a rotatory disc what happens to its angular velocity. Explain

    asked on January 27, 2017
  24. Maths

    The circumference of a given circular park is 55m.it is surrounded by a path of uniform width 3.5m.find the area of the path

    asked on October 24, 2016
  25. Math

    I am a 3 digit number whose tens place is 5 more than the ones and hundreds place is 8 less than the tens place. Who am i

    asked on August 9, 2016
  26. physics

    what will be the speed of a 500 kilogram satellite if we apply 100N force on it after each second till 10 hours.the current velocity of this satellite is 16,800 miles per hour?

    asked on April 13, 2016
  27. maths

    Determine the value of log 18/12 + log 8/12?

    asked on March 17, 2016
  28. maths

    IF the sum of areas of two squares is 610msquare and the difference of their perimeters is 32m,then find the lengths of their sides?

    asked on March 16, 2016
  29. maths

    Show that log(1+2+3)=log 1 + log 2 + log 3( with the formula)?

    asked on March 16, 2016
  30. maths

    in d given figure,AB=12cm and pt=8cm.if PAxPB=PTsquare(square is only for PT), then write a quadratic equation for finding the length of PA?

    asked on March 16, 2016
  31. math

    If there are two farmers who have grown grass in the circular field then what should be length of rope so that equal crop is distributed to both if rope is tied at the center of the circular field if r is radius of the circle

    asked on September 13, 2015
  32. programming

    Write a Java application that computes and prints the grade of a student according to the following algorithm: 1) It should read from the user TMA score and MTA score. 2a) If their sum is less than 15, the grade "FC" should be printed and the program will

    asked on April 11, 2015
  33. Chemistry

    A biochemical engineer isolates a bacterial gene fragment and dissolves a 15.1 mg sample of the material in enough water to make 32.7 mL of solution. The osmotic pressure of the solution is 0.340 torr at 25°C. a) What is the molar mass of the gene

    asked on February 11, 2015
  34. probability

    consider the experiment of the rolling a pair of fair dyes 1white and the other red are the events (a)doubles is rolled (b)The red is shown two or three,independ

    asked on July 12, 2014
  35. Science

    How do I draw a particle diagram to show how ear defenders work?

    asked on May 11, 2014
  36. science

    A Boy of mass 25 kg climbs atop a playground slide of height h= 3 m. When the boy slides down the inclined board, the work done to overcome friction is 550 Joule. What is the boy’s speed before he touches the ground.

    asked on February 16, 2014
  37. chemistry

    1.64 L of a 4.95 M solution is diluted to form a 2.58 M solution. (Rounded to 3 sig figs) there are __________ L of the 2.58 M solution formed.

    asked on February 5, 2014
  38. physics

    a 125 cm long string has a mass 2.0g and it is stretched with a tension of 7.0 IN between fixed support

    asked on March 28, 2013
  39. math

    what is the common ratio for this geometric series? 15 11 7 3 .5

    asked on February 7, 2013
  40. chemistry

    1 the mass of one mole of electron is ...... mg. 2 copper(I) ions contains .......... electrons in its 3rd orbitals 3 if both K and L shells of an atom are full,what is the total number of electrons contained in them? 4 what is maximum number of electrons

    asked on May 4, 2012
  41. chemistry

    1state relative mass and charge of an electron 2 an atom of an element X may be written as 4X^9 (a)What does the figure 9 indicate? (b)what is the number of protons in an atom X? (c)what is the number of electrons in an atoms X? (d)what does the number 4

    asked on May 4, 2012
  42. english

    whole history from early man to indus valley civilization.

    asked on May 3, 2012
  43. chemistry

    1 The size of cation is ...... and the anion is ........ than atom. 2 The removal of an electron from an atom results in the formation of a ....... the size of which is ........ than that of the atom.

    asked on May 3, 2012
  44. chemistry

    Mg+2 is isoelectronic species with ................ (give 2 species)

    asked on May 3, 2012
  45. Physics

    In its own frame the average pi meson lives 2.60 x 10^-8s. Suppose it moves at 0.985c relative to the Earth. According to us, on Earth, what is a pi meson's average lifetime? (b) according to us, what is the pi meson;s average travel distance before

    asked on May 2, 2012
  46. biology:plz someone help

    The heart lung machine is used so that surgeons can operate on the arteries supplying heart muscle. These arteries may be diseased. (a) Name these arteries and explain how they may become diseased. (b) suggest why a patient is put on a heart lung machine

    asked on March 10, 2012
  47. biology:plz help

    state the name for the action of two oppposing miscles, such as the biceps and the triceps.

    asked on March 10, 2012
  48. biology

    humans have a double circulation system. there is a low pressure circulation and a high pressure circulation. (a) explain how the structure of the heart enables it to pump blood into two circulations at different pressures

    asked on March 9, 2012
  49. biology

    The heart lung machine is used so that surgeons can oprate on the arteries supplying heart muscle.the arteries may be diseased. (a) Name these arteries and explain how they may become diseased (b) suggest why a patient is put on a heart lung machine during

    asked on March 9, 2012
  50. biology

    The heart lung machine is used so that surgeons can operate on the arteries supplying heart muscle. These arteries may be diseased. (a) Name these arteries and explain how they may become diseased. (b) suggest why a patient is put on a heart lung machine

    asked on March 9, 2012
  51. physics

    Why is Tangential acceleration equal to alpha*Radius?

    asked on March 1, 2012
  52. geometry

    In Triangle ABC, AD is median. If AB is 8, BC is 18, AD is 7, find AC

    asked on August 10, 2011
  53. science

    how far a science satellite should be from the earth's surface.

    asked on May 16, 2011
  54. maths

    cos(a+b)=m(cos(a-b) then tan a=?

    asked on April 30, 2011
  55. Intro to chem

    What is the volume of 19.7g of oxygen at STP? Heres what i got but did not get the same answer..pls tell me where i am wrong! (grams to moles) 19.7g x 1 mol/ 16.00 = 1.23 mol Oxygen (Pv=nRT) looking for V 1.23 mol x 0.0821 x 273K / 1.00 atm = 27.57 CORRECT

    asked on April 14, 2011
  56. US History

    What are proposals for new laws called?

    asked on April 13, 2011
  57. Physics

    How do the initial and final horizontal velocities of a projectile compare?

    asked on December 13, 2010
  58. Physics

    What factors affect the period of a pendulum?

    asked on December 13, 2010
  59. Physics

    How do you determine the average velocity on a position-time graph?

    asked on December 13, 2010
  60. Physics

    Lisa drops a stone from a wall that is 7.00m from the ground. How long is the stone in the air?

    asked on December 13, 2010
  61. chemistry

    When 10.g of NaCl is reacted completely with 65g of Pb(NO3)2 according to the following reaction? How much (grams) of PbCl2 can be produced? 2 NaCl + Pb(NO3)2 ----> PbCl2 + 2 NaNO3

    asked on November 15, 2010
  62. english

    i have to write on a topic for about 300-400 words . topic is 'IS HOMEWORK HARMFUL OR HELPFUL'

    asked on February 14, 2010
  63. English

    start with the word cage.make a new,two syllable word by replacing one le1tter with a different letter.

    asked on January 19, 2010
  64. Math

    It is a 5 digit no. ,palindrome,divisible by 4,10 digit is cube root of 1 digit,product of 100 digit and 1 digit is 54 ,sum of hundred and ones digit is 15.what is the number?

    asked on October 25, 2009
  65. maths

    a floor is 5m long and 4m wide. a square carpet of 3m is laid on the floor. find the area of the floor that is not carpeted

    asked on January 6, 2009
  66. Math

    The product of 1000 whole numbers is 1000. What is the largest possible value the sum of these numbers can have? A)1000 B)1992 C)1993 D)1999

    asked on October 26, 2008
  67. Math

    In the list of numbers 1,2,3,4,5,6,7,8,9, how many of the numbers in the list are exactly 2 more than some other number in the list? A)2 B)7 C)9 D)11

    asked on October 26, 2008
  68. Math

    What is the largest number which is both less than 2*3*5*7 and also a divisor of 2*3*5*7

    asked on October 24, 2008
  69. science

    what is brain

    asked on August 30, 2008
  70. science

    why do plants bear fruit?what are plant tissues?

    asked on August 30, 2008
  1. Chemistry

    No proper answer. Actual answer is 628kg

    posted on February 17, 2020
  2. Chemistry


    posted on December 17, 2018
  3. physics

    20 cm

    posted on May 7, 2018
  4. physics

    20 cm

    posted on May 7, 2018
  5. Maths

    I 1.21 how can it will be 21

    posted on January 3, 2018
  6. chemistry


    posted on September 6, 2017
  7. science


    posted on August 26, 2016
  8. chemistry


    posted on February 21, 2016
  9. 11th grade

    First we have to calculate the seconds ... 34min*60s=2040s therefore, 2040s/9.8m= its may be about 208.16m . They walked...

    posted on September 10, 2014
  10. 11th grade

    3x 6=2x 13 3x-2x=13-6 1x=7 x=7/1 x=7

    posted on September 10, 2014
  11. 6th math


    posted on March 6, 2013
  12. area of circle

    In fig o is the center of circle AB- 3cm and BC -4 cm then find the area of the shaded region

    posted on January 21, 2013
  13. chemistry

    this questions are related to class9 and the academic sessions hasn't started but since i'm n IIT student we have been given a lot of assignment for the holidays and the portion has to be done. so it would be alot of help if you help me. PLEASE HELP ME I

    posted on May 5, 2012
  14. math


    posted on June 26, 2011
  15. Intro to chem

    Thank you SO MUCH!

    posted on April 14, 2011
  16. Physics


    posted on December 14, 2010
  17. Physics

    Thank You!!

    posted on December 13, 2010
  18. Math

    In a list of the numbers 1,2,3,4,5,6,7,8,9 how many of the numbers in the list are exactly 2 more then some other number in the list?

    posted on October 24, 2008
  19. english- please help me edit

    Please help me to do my english homework.my teacher gave me a project on value of exercise.I am unable to do my homework.please help me!

    posted on July 9, 2008