Friday
December 9, 2016

# Posts by kala

Total # Posts: 42

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 the wreckage from the ...
June 1, 2016

Maths
Factorize 2x2square +8x - 10 =0
December 9, 2015

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 units with the number.)
September 8, 2014

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 situation regarding the ...
February 17, 2014

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 instruction. Include ...
February 13, 2014

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?
September 13, 2013

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?
September 13, 2013

Math
Showing all work convert 315m to dam
July 2, 2013

math
Third one is 0.5741
May 19, 2013

Math
Factorize 2x2square+8x - 10=0
March 9, 2013

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
February 4, 2013

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
February 4, 2013

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
February 4, 2013

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
February 4, 2013

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
February 4, 2013

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
February 4, 2013

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
February 4, 2013

physics
if a stress is numerically equal to young's modulus the elongation will be ans: 1.)equal to the original length. but how?
February 4, 2013

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
February 4, 2013

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".
October 28, 2012

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 sevens, nothing will ...
June 8, 2012

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 24.1degree C, OPTIONS : 1...
April 28, 2012

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
April 28, 2012

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
April 28, 2012

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 for this approach by...
April 7, 2012

Science
WAVE LENGHT
March 7, 2012

social studies
8.B ANOTHER IS FOR A NOTHER Q,IS SPREAD NEW CROPS
October 5, 2011

social studies
4. WOULD BE PERSIA
October 5, 2011

history
B IS WAT I PUT ON MY TEST
October 3, 2011

Math-Urgent
0.8 seconds
September 27, 2011

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 biggest risks of a ...
August 17, 2011

physical science
how would you classify a solution that contains 1.5g of lithium carbonate in 100g of water at 20 degrees
December 8, 2010

managerial economoics
close relationship between mnagement and economics has led to the development of managerial economics
October 19, 2010

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
October 19, 2010

math
24x+16=12
September 16, 2010

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.
June 16, 2010

chem
convert the following quantities to the required unit. 277 cm to meters
August 18, 2009

Math
1000 cubic measures?
December 4, 2008

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.
August 13, 2008

com215
i would just use my own ethnic group
September 13, 2007

Math
is this what u r looking for? rl=12in t=14y no clue. r those ur answers?
September 13, 2007

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