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 viraat's messages in the community 1 2 3 GO Go to Page...
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 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]
can be expressed as any value along z axis i.e k
 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]
humid air. bcoz density of humid air is 5/8 of dry air && v=(e/d)^1/2
 Discussion Forums -> This Post 5 points    (1    in 1 votes )   [?]

is it 12. since it is divisible by 88, it will also be divisible be 11. therefore A+3+B=8+7. THEREFORE A+B=12. RATE IF SATISFIED

 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]

it is a vector. scorpion's explanation is absolutely correct

 Catalogs -> This Post 0 points    (0    in 0 votes )   [?]
price of the book is 740/-
 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]
create a 2d array 4x4

for(int i=0;i<3;i++)

{

for (int j=0;j<3;j++)

{

s=s+a[i][j];
p=p+a[j][i];
}

a[i][4]=s;
a[4][i]=p;

}

now print the array'

rate if u find useful!!!!!!!!!!!!!
 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]
it is all said that black colour reflects the most. as a result black colour mirrors help in reflecting the sunlight.
 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]
dielectric constant (with eg of water) is the tendency of water to break the force of attraction bet ween ions of an ionic compound
 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]
by throwing the ball back in horizontal direction.as every action has equal and opp reaction. th reaction would be provided by the ice and the man can come out of the ice
 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]
pls post the full question
 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]
u can try morris and boyd
 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]
yaa. it shud be 60 bcoz i+r=60
 Discussion Forums -> This Post 5 points    (1    in 1 votes )   [?]
let lenght of shadow be x when sun's alt = 60.

let height be h

tan 60 = h/x

h = (root) 3x (i)

tan 30 = h/40+x

h=(root)3x

1/(root)3=(root)3x/40+x

40+x = 3x

40=2x

x=20

h= (root)3x

h=1.732*20

solve to get the ans.

rate if satisfied.

if my soln is incorrect then pls post the question in a detailed way
 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]
what r u talking abt
 Discussion Forums -> This Post 5 points    (1    in 1 votes )   [?]
bcoz with the production of heat the temp changes. as a result the length of the filament is modified.since R= (rho)p*l/r,the resistance changes
 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]
can u explain ur ans
 Discussion Forums -> This Post 7 points    (1    in 2 votes )   [?]

u hav posted a wrong question. instead it shud be cos^2a+cos^4a=1

 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]
i think if it bisects the area. it will pass thru the midpoint of 2 opp sides of the quadilateral.
so mp of first side=(0+4/2,0+0/2)

it is eual to (2,0)

so slope=y2-y1/x2-x1

slope=2007-2/2006-0

slope = 2005/2006.

rate if satisfied.

if soln is wrong pls post the correct soln
 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]
work = force*displacement.
1J=1N*1m;
1N=10^5dyne.
1m=100cm

1J=10^5*100

1J=10^7 dyne cm.
since 1dyne cm = 1erg

therefore 1J=10^7erg.

hence proved.

do not forget to rate if satisfied
 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]
angle of refraction at first surface=angle of incidence at second surface. bcoz their normal is parallel to each other. and the refracted ray is the transversal.
and sorry.
we hav to assume angle of incidence at second surface as 45. bcoz after first TIR the angle of incidence at second surface may change as (180-(90+45))=45 only.
so it may be more convenient.

therefore angle of refraction=45

sini/sinr=n
sini/sin45=3/2
sin i = 3/2*sin45

sini=3/2*1/root2

therefor now calculate answer using trigo tables.

rate if satisfied
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