Wednesday
April 23, 2014

Posts by Aayush


Total # Posts: 19

physics
a body travels 200 cm in the first two second and 220 cm in the next 4 seconds.what will be the velocity at the seventh second from the start.

chemistry
What will be value of molarity and strength %w/v respectively 30V H2O2 solution

math 12
the answer is 60 degrees

Advanced Math
4cos(theta)+3sin(theta)=(10/r)

Advanced Math
The general equation of such cosine function is:y=acos(x-phasedifference), y=displacement a=amplitude x=angular displacement =(angular velocity)*time =(2pi/time period)*time Therefore, the equation can be written as: y=2cos[x-(pi/4)]..........(a) or,y=2cos[(2pi/pi)*t-(pi/4)] o...

mathhhhhhhhhhh,
x^6+3x^3+2=0 It can also be written as: (x^3)^2+3(x^3)+2=0...........(1) Let a=(x^3), then we may rewrite equation (1) as: a^2+3a+2=0 or,a^2+a+2a+2=0 or,a(a+1)+2(a+1)=0 or,(a+1)(a+2)=0 either,a=-1 or,a=-2 that is (x^3)=-1 or (x^3)=-2 Therefore, x=-1 or x=cube root of -2 this i...

Math
Thanks that was really helpful. But the solution to the limit problem is still not clear to me.

Math
a)in how many different ways can 8 exam papers be arranged in a line so that the best and worst papers are not together? b)in how many ways can 9 balls be divided equally among 3 students? c)There are 10 true-false questions. By how many ways can they be answered? d)lim(x tend...

math
=-12y+40+4y+10 =-8y+50

physics
If R1 and R2 be the two resistances connected in (a)series, then equivalent resistance=R1+R2 (b)parallel, then equivalent resistance=(R1*R2)/(R1+R2)

trigonometry
if sin2x=3sin2y, prove that: 2tan(x-y)=tan(x+y) ( here, in sin2x, 2x is an angle., like there's a formula:sin2x=2sinxcosx and sin2y=2sinycosy; ....)

physics
metals are the good conductor of heat. hence, metals can gain heat by contact. so, the cup with the metal spoon will cool faster.

physics
cause the air comes in thermal equlibrium with your body... and it depends upon the heat that your body looses...i guess so.

Physics(last line:correction)
q=(n*e).....(i) where, q= charge, n=number, e= charge of an electron n=q/e....(i) (from equation i) given,q= +2.8mc= +2.8*10^-6 c we know, charge of an electron(e)=1.6*10^-19 c hence n= (2.8*10^-6)/(1.6*10^-19) = 1.75*10^13 so, 1.75*10^13number of charges should be removed.

Physics
q=(n*e).....(i) where, q= charge, n=number, e= charge of an electron n=q/e....(i) (from equation i) given,q= +2.8mc= +2.8*10^-6 c we know, charge of an electron(e)=1.6*10^-19 c hence n= (2.8*10^-6)/(1.6*10^-19) = 1.75*10^13 so, 1.75*10^13number of charges should ne removed.

trig
if sin2x=3sin2y, prove that: 2tan(x-y)=tan(x+y) ( here, in sin2x, 2x is an angle., like there's a formula:sin2x=2sinxcosx and sin2y=2sinycosy; ....)

trig
if sin2x=3sin2y, prove that: 2tan(x-y)=tan(x+y)

Antiderivatives
Integration of 1/x with respect to x is natural logarithm of x

physics
find the force exerted by these two equal charges by using f=(1/4*pi*epsilon)*(q1*q2)/r^2 if f1 is the force exerted by one charge q1 and f2 be the force exerted by another charge q2 which are equal in their magnitude(as you've mentioned) then f1=f2=f. i.e, f1 and f2 are e...

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