mani
Popular questions and responses by mani
chemistry.
a quantity of 25 ml of a solution containing both Fe2+ and Fe3+ ions is titrated with 23 ml of .02 M KMnO4 solution. as a result all the Fe2+ ions are oxidised to Fe3+ ions. Next the solution is treated with Zn metal to convert all Fe3+ ions to Fe2+ ions.
asked on September 24, 2012 
physics
a hose pipe ejects water at a speed of 0.3m/s through a hole of area 50 cm*m.if the water strikes a wall normally, calculate the force on the wall , assuming the velocity of water normal to the wall is zero after striking?
asked on March 23, 2012 
physics
two point charges +36 and 16 microcoulumb are placed 10 cm apart. at a point x, there is no resultant force on positive charge. the distance of x from +36 microcoulumb charge is
asked on July 2, 2011 
Math
1A farm consists of 600 hectares of land of which 500 hectares will be planted with corn soybeans and wheat according to these conditions; At least half of the planted hectares should be in corn No more than 200 hectares should be soybeans The
asked on April 24, 2020 
physicsnewton's laws
an aeroplane is flying in a horizontal circle with airspeed of 480 km/h. The wings of the plane are tilted at 40 degrees to the horizontal. What is the radius of the circle and how long does it take the plane to complete one full circle?
asked on October 12, 2010 
English
Rock formations called geodes are filled with layers of crystals. Which group of words forms the complete predicate?
asked on November 2, 2019 
Math
find the simple interest on rupees500 at 6% per annum for 1 year
asked on December 30, 2017 
algebra
Eight more than the product of seven and Mabels age. (turn into algebraic expression)
asked on October 21, 2014 
trig
1=2pi times the square root of (L/9.8)
asked on July 6, 2011 
physics
a 60kg man is on a steadily rotating Ferris wheel. the man is standing on a bathroom scale and the scale reads 45kg at the top of the wheel. take g=10m/s^2 (a) what does the scale read when the man is at the bottom of the wheel? (b)what does the scale read
asked on October 12, 2010 
electronic
The current through a meter movement is 150μApeak. What is the dc value if the instrument uses halfwave rectification?
asked on December 13, 2019 
Physics
a batman deflects a boy by an angle 90 without change in acc. speed of 54km/h if mass of ball is 0.15kg. what is the impulse exerted on the ball also find force exerted on ball if ball remain for 0.1sec In connected with wall?
asked on September 7, 2016 
Chemistry
Equal weight of methane and hydrigen are mixed in an empty container at 25°C. The fraction of the total pressure exerted by hydrogen is
asked on August 5, 2016 
Maths
Equal weight of methane and hydrigen are mixed in an empty container at 25°C. The fraction of the total pressure exerted by hydrogen is
asked on August 5, 2016 
Social Studies
1. Which action that occurred ruing the Battle of Chickamauga made it a Confederate victory? A. The Confederates had fewer casualties. B.Union troops were forced out of Georgia C. The Union general surrendered. D. None of the Above 2. Which of the
asked on November 21, 2015 
Math Help!!
Order the numbers from least to greatest. 1/3, 1 and 1/4, 0.27, 1.35 I am sorry I really need help on this one.
asked on November 19, 2015 
Math Help!!
Order the numbers from least to greatest. 3/8, 19/24, 2/3 Thanks.. :) In need of help to understand how to order.
asked on November 19, 2015 
Science
If the trend in the graph continues through the summer, what would you expect the average high temperature in Louisville, Kentucky , to be in August? Please respond as soon as you can, Thanks!
asked on September 17, 2015 
Math
Richard Simmons is selling his house. He has a choice of taking $125,000 today or $135,000 in 6 months. If he takes the money today, he can invest it at Valley Bank at 5% interest compounded monthly. a. How much would be in the account after six months if
asked on April 14, 2014 
geometry
a point F is at a certain distance from a line AB .Another point P is moving in a plane such that the ratio of it's distance from F and line AB remains constant .find the locus of the point P
asked on April 2, 2013 
Math
In 500cmcube of alcohol solution the percentage of alcohol by volume is 80%. Find the volume of water that must be added to the solution so that the ratio of the volume of alcohol to that of water becomes 5:2? Please some one give me answer
asked on November 18, 2012 
Logic
A radical skeptic might be willing to doubt which of the following? 3 + 5 = 8 Grass is green. Cheese is fattening. *All of the above Is this correct?
asked on September 11, 2011 
geometry
A juice box holds 8 fluid ounces. A fluid ounce is 1.80469in^3. What are the dimensions of the box? Is there more than one possible answer
asked on June 13, 2011 
geometry
John is putting in a concrete patio in his backyard. The dimensions of it are 12ft by 8ft by 6inches. If concrete costs $6.75 per cubic foot how much will the concrete cost for the patio
asked on June 13, 2011 
chemistry
if you have 24.00grams of O2 at 30 degrees Celsius, 204 KPa. how many liters of O2 do you have?
asked on June 12, 2011 
math
A lamp pole 12ft high shines on a person and casts a shadow 8ft long. If the person is 10ft from the lamp pole, calculate the person's height.
asked on May 26, 2011 
Math
Meg's pension plan is an annuity with a guaranteed return of 9% interest per year (compounded semiannually). She would like to retire with a pension of $70000 per semiannum for 25 years. If she works 45 years before retiring, how much money must she and
asked on April 22, 2011 
deforestation
send me 5 sentences about deforestation
asked on December 1, 2010 
Math
what is the equation of pi?
asked on September 19, 2010 
history
tell me about women in politics from 1920 to 1929
asked on November 15, 2009 
Chemistry
Explain how a non metal atom becomes negative. Lose an electron, become negative. Bob Pursley isn't at his computer right now but I don't think he would mind if I explained that ADDING an electron to a nonmetal makes it become negatively charged. I agree
asked on April 18, 2007 
chemistry
explain why oxygen "likes" to form an O^2 ion. O2 is a molecule, not an ion. O2 is stable in the outer electron configuration.
asked on April 18, 2007 
Chemistry
Propose a method for determining the specific heat, Cp, for a metal like sodium which reacts with water. You posted this question several times, and not just today. It has been answered. You will have to fill in the steps yourself. There are other possible
asked on March 21, 2007 
Chemistry
Propose a method for determining the specific heat, Cp, for a metal like sodium which reacts with water. Allow the sodium to equilibrate in a metal calorimeter filled with inert gas. Measure the equilibrium temperature
asked on March 21, 2007

Math
A fertilizer factory mixes three ingredients: L, M and T to produce 2000kg of special mixture to specific order. L costs birr 36/kg, M costs birr 40/kg and T costs birr 42/kg. No more than 600kg of ingredient can be used and at least 300kg of M and 400kg
posted on April 24, 2020 
math
29600
posted on May 1, 2019 
Art plzz help
Guys…Anna is right all her answers are!😉
posted on November 24, 2015 
Art plzz help
I love you @Anna! :D 💕😂😃
posted on November 24, 2015 
Art plzz help
Thank you @Anna!!! I got an 8/8 or a 100% ! Thank you so much!!! :D
posted on November 24, 2015 
Social Studies
I got it a 4/5 thank you so much Reeb or Reed sorry…You were a great help! The answers were…. 1. B 2. A & B 3. C 4. A I got the numder 3 wrong…I chose A instead.
posted on November 21, 2015 
Social Studies
I have this special language and writing class for people like me…and it's NONE of your business.
posted on November 21, 2015 
Social Studies
Does someboby know the answers?!?!??! Please! I have dyslexia and I had to have my drother help me with this one.
posted on November 21, 2015 
Math Help!!
Thanks Ms. Sue I got a 5/5 :)
posted on November 19, 2015 
Math Help!!
Oh wait….1/3 is 0.333333 right? sorry! :)
posted on November 19, 2015 
Math Help!!
5/4 = 1.25 1.35 0.27 3.33333 So it goes… 0.27, 1 and 1/4, 1.35, and 1/3?
posted on November 19, 2015 
Math Help!!
thanks Ms. Sue :)
posted on November 19, 2015 
Math Help!!
Nevermind I got it but so much for fast replies and help. pppfffttt.
posted on November 19, 2015 
Math Help!!
THE Hell? The second Ms. Sue you need to fricken leave Ms. Sue and other students on here ALONE.
posted on November 3, 2015 
math
Thank you so much @smartone:) 👼
posted on October 31, 2015 
7th grade math
thank you Salted Caramel! :D
posted on October 12, 2015 
math
Ha ha ha! Nice to see you all here! i am here for the SAME REASON!
posted on October 12, 2015 
Math
BEQUIET Anonymous because you don't have a right to call people names! Stop being rude before you get reported!
posted on October 1, 2015 
Heat Transfer
No answer
posted on August 5, 2015 
global studies
women
posted on October 14, 2014 
Algebra
range is [27,48]
posted on April 2, 2013 
Math
all these can be solved by using the formula a^2b^2=(a+b)*(ab) (1)> ans. is (2x+4)*(2) (2)> ans. is (5x+4)*(3x4) (3)> ans. is (3x+6)*(5x2)
posted on April 2, 2013 
Chem
According to ideal gas equation [(p1*v1)\t1]=[(p2*v2)/t2] thus, [(740*410)/300]=[(760*V)/273] so,by solving the above eqn. we get V=363.28 ml
posted on April 2, 2013 
Quadratic Equations
the roots of the equation are n=[(b)+sqrt(b^24*a*c)]/2*a n=[(b)sqrt(b^24*a*c)]/2*a thus, n=[5+sqrt(25+96)]/2*6 n=[5sqrt(25+96)]/2*6 so,the values of n for this eqn. are n=4/3,1/2
posted on April 2, 2013 
Math
A.tgmgtgtgmgtg
posted on June 14, 2011 
how to gain your parents trust back
think that you should simply stop lying and do what you have to do like get good grades do chores without being asked and if it comes down to a feeling where your about to runaway from home DON'T DO IT ! that's going to make it worse i promise it is. Talk
posted on June 5, 2011 
statistics
.0107
posted on March 15, 2011 
math
x=4.9
posted on February 16, 2011 
math
6,174,000,000
posted on December 21, 2010 
physicsnewton's laws
thank you so much :)
posted on October 13, 2010