Most popular questions and responses by Puja
  1. Chem. help please

    A zinc-copper battery is constructed as follows at 25 degree C: Zn | Zn2+(0.15 M) || Cu2+(1.70 M) | Cu The mass of each electrode is 250. g. I found the cell potential to be 1.13V and the cell potential after 5.00 A of current has flowed for 8.00 h is

    asked on March 10, 2012
  2. mathematics

    25% people in a group join a mountaineering activity,while the remaining 45 people do not join it. How many people are there in the group ?

    asked on March 1, 2016
  3. springdale

    difference between thermal capacity and water equivalent

    asked on July 6, 2016
  4. computers

    write a c program to find the percentage marks where obtain marks and total marks is given by user also show the fail message if marks is less than 17%

    asked on November 28, 2014
  5. science

    why the unit of work and energy are equal?

    asked on July 21, 2016
  6. programming

    write the c programe to find the simple intrest of amount which is supplied by user with the rate of 3% if ammount 10,000 for 5 years.

    asked on November 28, 2014
  7. science

    what is the unit of thermal capacity?

    asked on June 15, 2016
  8. Math -Calculus

    A cylinder with radius of 20 ft is being filled with water at a rate of 2000 ft^3/hour. Find the rate at which the height of the water is increasing.

    asked on November 19, 2012
  1. plz plz help me belive me have tried

    It is very easy and amazing

    posted on October 11, 2018
  2. Math

    Always draw a diagram to see what is happening. Using trigonometry: SOH is used sin(55)=opposite/hypotenuse =55m/hypotenuse Hyp(sin55) =55m Hyp= 55m/sin55 Hypotenuse= 67.14 metres (2 decimal places)

    posted on January 19, 2017
  3. science

    In a reaction the quantity of heat that raises the temperature of some substance by some amount the same quantity of heat can simulteneously raise the same temperature of a certain mass of water.The mass of water is then termed as water equivalent

    posted on June 15, 2016
  4. mathematics

    i donot know

    posted on March 1, 2016