Kala

Most popular questions and responses by Kala
  1. physics

    A piece of metal of mass 112g is heated 100 degree C.,and dropped into a copper calorimeter of mass 40g containing 200g of water at 16 derreC. Neglecting the heat loss, the specific het of the meatal is nearly,if the equilibrium temperature reached is

    asked on April 28, 2012
  2. physics

    A sprinter can accelerate with constant acceleration for 2.10s before reaching top speed. He can run the 100-meter dash in 10 s. What is his speed as he crosses the finish line?

    asked on September 13, 2013
  3. physics

    a wire whose cross-sectional area is 4mm^2 is stretched by 0.1 mm by a certain load.if a similar wire double the area of cross-section is under the same load,then then elongation would be ans: 1)0.05mm

    asked on February 4, 2013
  4. physics

    a string of cross section 2 cm^2 is doubled in length by the application of a longitudinal force 2*10^5dynes.the young"s modulus is: 1.10^5 dyne/cm^2

    asked on February 4, 2013
  5. physics

    if a stress is numerically equal to young's modulus the elongation will be ans: 1.)equal to the original length. but how?

    asked on February 4, 2013
  6. physics

    The densities of two substances are in the ratio 5:6 and the specific heats are in the ratio 3:5 respectively. The ratio of their thermal capacities per unit volume is

    asked on April 28, 2012
  7. physics

    when the metal sphere is suspended at the end of a meal wire its extension is 0.4mm. If another metal sphere of the same material with its radius half as the previous is suspended then extension would be ans: 1)0.05mm

    asked on February 4, 2013
  8. chemistry

    When a 16.9-g sample of NaOH dissolves in 70.0 g of water in a calorimeter, the temperature rises from 22.4°C to 86.6°C.

    asked on June 16, 2010
  9. physics

    The thermal capacity of 10g of a substance is 8 calories. the specific heat is in J/kg-K options : 1.3360 2.3630

    asked on April 28, 2012
  10. physics

    A body is executing of amplitude 1m . Its velocity while passing through mean position is 10m/s . Find its frequency

    asked on December 10, 2017
  11. physics

    when tension 'F' is applied the elongation produced in uniform wire of length l,radius r is e; when the tension 2F is applied the elongation produced in another uniform wire of length 2l and radius 2r made of same material is ans: 1.)1.0 e

    asked on February 4, 2013
  12. Physics

    David is driving a steady 21.0m/s when he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2.50m/s2 at the instant when David passes. How far does Tina drive before passing David? What is her speed as she passes him?

    asked on September 13, 2013
  13. physics

    there are two wires of same material.their radii and length are both in the ratio 1:2.if the extensions produced are equal, what is the ratio of the load ? ans: 1)1:2

    asked on February 4, 2013
  14. physics

    a metallic ring of radius 'r' and cross sectional area is fitted into an wooden circular disc of radius R (R greater than r).If he young's modulus of the material of the ring is Y, the fore with which the metal ring expands is : ans: 1.AY(R-r)/r

    asked on February 4, 2013
  15. chemistry

    You have a metal tank containing 74.0 moles of nitrogen gas at a pressure of 15.0 atm. If the pressure is measured at a temperature of 25.0 °C, then the volume of the tank must be ___ liters. (Round your answer to one decimal place and do not include

    asked on September 8, 2014
  16. managerial economoics

    close relationship between mnagement and economics has led to the development of managerial economics

    asked on October 19, 2010
  17. Algebra

    Where do I put parentheses and brackets to make this statement true? 15÷3×5+4×8 = 40

    asked on September 10, 2017
  18. physics

    an aluminium rod has a breaking strain 0.2%.The minimum cross section area of he rd in m^2 in order to support a load of 10^4N is if young's modulus is 7*10^9 N/m^2 ans: 1.) 7.1*10^-4

    asked on February 4, 2013
  19. physical science

    how would you classify a solution that contains 1.5g of lithium carbonate in 100g of water at 20 degrees

    asked on December 8, 2010
  20. physics

    A sports car weighing 600 kg travels North at 35 m/s. Running a stop sign, the car crashes into a 2000 kg truck traveling East at 20 m/s. The vehicles become locked together and travel 18 meters before stopping. Find the direction and the deceleration of

    asked on June 1, 2016
  21. grammar

    How do the Noun phrases in the following sentence acquire case ? -It is odd that Bill should have refused the offer It has been noted that Noun phrases need case because they need to be visible in order to receive a theta role . Discuss the problems raised

    asked on April 7, 2012
  22. math

    24x+16=12

    asked on September 16, 2010
  23. Math

    1000 cubic measures?

    asked on December 4, 2008
  24. physics

    two wires A and B have Youngsmodlii in the ratio of length's is 1:2 and ratio of length's is 1:1 .Under the application of same stress the rato of elongations is ---- ans 1.)2:1

    asked on February 4, 2013
  25. art

    The word "Pantheon" refers to: A. the people of the Pan dynasty. B. the ancient hill of Rome where Nero built his house. C. "all the gods".

    asked on October 28, 2012
  26. maths

    a number which is less than or equal to 150 but if counted in pairs, one will remain if counted in threes, two will remain if counted in fours, three will remain if counted in fives, four will remain if counted in sixes, five will remain if counted in

    asked on June 8, 2012
  27. English

    I need to know whether I have at least five adjectives and five adverbs in this paragraph. I am really struggling with this. I understand what adverbs and adjectives are, I am just having trouble writing a paragraph where I have to insert them! One of the

    asked on August 17, 2011
  28. managerial economics

    firms demand function,p=24-0.54q and the average cost function,AC=Q2-8Q+36+3/Q,calculate the level of output Q, which maximize total revenue,maximizes profits

    asked on October 19, 2010
  29. CIS/105

    Hello I need help with my upcoming finals project here is what I have to do: Use information and data obtained from at least four reliable Internet sources to produce a 12- to 15-slide PowerPoint® presentation about multimedia tools that aid classroom

    asked on February 13, 2014
  30. Maths

    Factorize 2x2square +8x - 10 =0

    asked on December 9, 2015
  31. ART/101

    Hello I am having a bit of trouble with my DQ for this week and I was wondering if anybody could help me? The DQ for this week is: This week we are looking at symbolism and given the example of a Treaty signing. Tell me what you think about the entire

    asked on February 17, 2014
  32. Math

    Showing all work convert 315m to dam

    asked on July 2, 2013
  1. Math-Urgent

    0.8 seconds

    posted on September 29, 2016
  2. health insurance

    15.00

    posted on August 18, 2016
  3. Math

    Factorize 2x2square+8x - 10=0

    posted on December 9, 2015
  4. Science

    WAVE LENGHT

    posted on October 2, 2013
  5. social studies

    8.B ANOTHER IS FOR A NOTHER Q,IS SPREAD NEW CROPS

    posted on July 25, 2013
  6. social studies

    4. WOULD BE PERSIA

    posted on July 25, 2013
  7. history

    B IS WAT I PUT ON MY TEST

    posted on July 25, 2013
  8. math

    Third one is 0.5741

    posted on May 19, 2013
  9. grammar check

    "Have you ever read the story,'The tell-Tale Heart', by Edgar Allan Poe"? Dave asked. "Did the professor say, 'Put down your pencils'!" Janice asked.

    posted on June 4, 2010
  10. chem

    convert the following quantities to the required unit. 277 cm to meters

    posted on August 19, 2009
  11. Math

    is this what u r looking for? rl=12in t=14y no clue. r those ur answers?

    posted on September 13, 2007
  12. com215

    i would just use my own ethnic group

    posted on September 13, 2007