Friday
December 13, 2013

# Posts by pooja

Total # Posts: 51

physics
Why is Tangential acceleration equal to alpha*Radius?

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 take to reach the light...

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

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

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

Intro to chem
Thank you SO MUCH!

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 ANSWER is 13.8L!

US History
What are proposals for new laws called?

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

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

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