Discussion 
Board 
Class 
Subject 

Tue October 21, 2014
how to crack asl?
?
By
Khushi Ray
(1)

CBSE 
VII 
Chapter Notes


Tue October 21, 2014
fluids
A rectangular block of wood of dimensions 40cm x 20cm x 10cm is kept on a table top. The pressure is greatest when it is rested on
20cm x 10 cm
40cm x 20cm
equal for all cases
40cm x 10cm
By
Srinidhi Srinivasan
(2)

CBSE 
IX 
Physics


Tue October 21, 2014
fluids
A student placed an iron cuboid of dimensions 4 cm x 6 cm x 10 cm on a tray containing fine sand. He placed the cuboid in such a way that it was made to lie on the sand with its faces of dimension (a) 4 cm x 6 cm (b) 6 cm x 10 cm (c) 4 cm x 10 cm. if the density of iron is nearly 8 gcm3 and g = 10 ms2 the minimum and maximum pressure as calculated by the student should be:
640 Nm2,1600 Nm2
3200 Nm2. 8000 Nm2
16 Nm2, 40 Nm2
32 Nm2,80 Nm2
By
Srinidhi Srinivasan
(0)

CBSE 
IX 
Physics


Tue October 21, 2014
Education_Teacher
Term Papers for Sale  Over 70,000 term papers and research papers available for instant download!
By
Hammondrowe Hammondrowe
(0)

CBSE 
VI 
Exams


Tue October 21, 2014
fluids
what is archimed's principle?how can u find the relative density of a solid using it?
By
Srinidhi Srinivasan
(2)

CBSE 
IX 
Physics


Tue October 21, 2014
fluids
a ball appears to be lighter as long as it is in water than when it is outside water.why?
By
Srinidhi Srinivasan
(2)

CBSE 
IX 
Physics


Tue October 21, 2014
fluids
what is the relation between the buoyant force on an object and the liquid displaced byit?
By
Srinidhi Srinivasan
(2)

CBSE 
IX 
Physics


Tue October 21, 2014
gravitation
WHAT ARE THE CAUSES OF BUOYANT FORCE
By
Srinidhi Srinivasan
(1)

CBSE 
IX 
Physics


Sun October 19, 2014
Buoyancy Force
Can anyone give more information on buoyancy force?
By
Sahla Hisana
(2)

CBSE 
IX 
Reference Notes


Sun October 19, 2014
CIRCULAR MOTION
What are the major differences between centripetal and tangential acceleration?Which of them remains constant during uniform circular motion and why?What are the different ways to calculate either of the acceleration?
By
Yukti Jha
(1)

CBSE 
XI 
Chapter Notes


Sun October 19, 2014
how to animals reproduce?
what is meant by niche?
By
Anu Thaman
(1)

CBSE 
X 
Biology


Sun October 19, 2014
WHY DO WE FALL ILL?
Which of the following bacteria cause peptic ulcer?
Helicobactor hepaticus
Helicobactor pylori
Helicobactor chlolecystus
Helicobactor salomonis
By
Srinidhi Srinivasan
(1)

CBSE 
IX 
Biology


Sat October 18, 2014
solar system
Hi online friend please give me help solar system
By
Snehagupta1901 Gupta
(1)





Thu October 16, 2014
triangle chapter
In given fig PR<PQ and PS bisect<QPR prove that <PSR>< PSq
By
Snehagupta1901 Gupta
(1)





Thu October 16, 2014
Answer pls....
Anyone online,
frnds pls help!
very quick
0.1*0.1*0.1+0.02*0.02*0.02/0.2*0.2*0.2+0.04*0.04*0.04=?
By
Hariharasudanpilot
(0)

CBSE 
XI 
Chapter Notes


Wed October 15, 2014
ASL
Hello!!!!!!! Please give me ssome tips to crack ASL........
By
Devika Kulkarni
(1)

CBSE 
X 
Exams


Wed October 15, 2014
role of parliament
what was the role of parliament in the issue of office memorandum ??????
By
Nidhi Sinha
(0)

CBSE 
IX 
Civics


Tue October 14, 2014
friction
choose the correct option:
rolling friction is smaller than
1. static friction
2. sliding friction
3. fluid friction
4. all of the above
on asking the expert,, they said its sliding friction but since static friction is smaller than sliding friction,, rolling friction should also be smaller than staltic friction.. i have doubt whether rolling friction is smaller than fluid friction...
By
Aarushisinghal Singhal
(0)

CBSE 
VIII 
Exams


Mon October 13, 2014
Use of Trignometry
The angle of elevation of a cloud from a point 'h' metres above a lake is 'theta'.the angle of depression of its reflection in lake is 45 degree.the height of the cloud is
(A)h tan(45+theta) (B)h cot(45theta) (c)h tan(45theta) (d)h cot(45+theta)
Suppose H is the height of Cloud and x is horizantal distance form point to cloud. so the hight of cloude from ground is h+H
Tan 45 = (2h+H)/x => x= (2h+H)/Tan 45 (1)
Tan θ = H/x => x=H/Tan θ  (2)
from (1) and (2)
H/Tan θ= (2h+H)/Tan 45
Find the value of H from above. It is
H= 2h Tan θ/( tan 45 Tan θ)
Hight of cloud is h+H
so h +H = h +(2h Tan θ/( tan 45 Tan θ) )
=> h+H= h(1+tan θ)/(1tan θ)
=> h+H = h (Tan 45+tan θ)/ (1tan θ tan45)
=> h+H= h Tan(45+θ)
by using formula Tan(A+B)= ( Tan A + Tan B) / (1Tan A TanB)
So the hight of cloud is =h Tan(45+θ)
By
Rashi Dixit
(3)

CBSE 
X 
Exams


Mon October 13, 2014
THE MAN WHO KNEW TOO MUCH
WHAT WERE THE FACTORS THAT LED TO DECLINE OF QUELCH . DO U THINK HIS FALL FROM GRACE WAS JUSTIFIED? PLS ANSWER FAST FRIENDS TOMORROW I HAVE TEST
By
Srinidhi Srinivasan
(3)

CBSE 
IX 
English


Sat October 11, 2014
envoriment
if there wont be any ozen layer formed then what would happen?
By
Meghana Mahajan
(4)

CBSE 
X 
Biology


Sat October 11, 2014
pn the chapter perodic classification
By
Meghana Mahajan
(2)

CBSE 
X 
Biology


Sat October 11, 2014
endocrine glands.
if one adrenal gland is removed, the other one gets enlarged to some extent. why?
By
Adds5899
(3)

ICSE 
X 
Exams


Fri October 10, 2014
ruling the countryside
mention the steps taken by the east india company to bring the mughal rule to an end?
By
D2d99c1a
(2)

CBSE 
VIII 
Social Studies


Fri October 10, 2014
help
please answer to my question
By
Bhavya Preeti
(2)

CBSE 
XI 
Project Help

