Monday
May 2, 2016

# Posts by Aparna

Total # Posts: 29

chemistry
my developing solvent is hexane toluene acetic acid(5:5:1)nd my samples rf nd impurity rf is very close,my spots r not separating properly,so which hexane should hav to be used?n hexane or hexane fraction?is only hexane affect or other factor is there?
March 10, 2016

physics
A pistol of mass 2 kg fires a bullet of mass 50 g. The bullet strikes a stationary block of mass 1 2 kg. If the block, with the bullet embedded in it, moves with a velocity of 4 m/s, the recoil velocity of the pistol will be (Ignore friction and air resistance)
November 18, 2015

Chinese
what to say egg and my favorite in chinese please replay me fast
October 24, 2014

we have not learn like this fraction please help me to teach this i dont no any from here
September 15, 2014

CHEMISTRY
The data below has been taken for the reaction of a dye with the hydroxide ion. The reaction was performed at two different hydroxide ion concentrations while the dye concentration was kept constant. What is the rate law? [OH─] = 0.10 M [OH─] = 0.20 M t (min) Abs ...
March 18, 2014

math ALG 2!
x+(x-14)=300 2x-14=300 2x=314 x=157
March 19, 2013

math ALG 2!
4x=x+78 4(20)=20+78 80=98 no i did guess and check 4(26)=26+78 104=104
March 19, 2013

Calc
f(x)=2ln(x^2+3)-x Domain [-3,5] how do i find the absolute maximum value of this?
March 19, 2013

algebra
3(x-2/3)=-10 (x-2/3)=-10/3 x=-8/3
March 19, 2013

Math
60 degrees
March 19, 2013

algebra
-.1x-1>.4 -.1x>1.4 x<14 dividing/multiplying negatives switches the sign
March 19, 2013

Calc
f(x)=2ln(x^2+3)-x Domain [-3,5] how do i find the absolute maximum value of this?
March 19, 2013

never mind! figured it out
never mind i figured it out
March 19, 2013

Calc
range of f(x)= 5^(2x^2-1)^(1/2) i know that the domain of the inverse would be the range of this and i've found the inverse but it has natural logs in it and i don't know how to find the domain with that.. i feel like i'm missing something simple
March 19, 2013

math
the pie is 360 degrees divide that by 10 peices it gives you 36 degrees per slice 3 slices left times 36 degrees is 108 degrees
March 19, 2013

Calc
thank youu
March 19, 2013

Calc
i found A and B, just checking if they're right. C i can never remember how to do these. D i haven't tried yet but i could probably figure out but i figured since i was putting the rest up i would do it as well
March 19, 2013

Calc
The function f is defined by f(x)= (25-x^2)^(1/2) for -5 less than or = x less than or = 5 A) find f'(x) B) write an equation for the tangent to the graph of f at x=3 C) let g be the function defined by g(x)= (f(x) for -5<or=x<or=-3)and (x+7 for -3<or=x<or=5) D...
March 19, 2013

Clueless in calculus
The function f is defined by f(x)= (25-x^2)^(1/2) for -5 less than or = x less than or = 5 A) find f'(x) B) write an equation for the tangent to the graph of f at x=3 C) let g be the function defined by g(x)= (f(x) for -5<or=x<or=-3)and (x+7 for -3<or=x<or=5) D...
March 19, 2013

Let f be the function be defined by f(x)=5^((2x^2)
Let f be the function be defined by f(x)=5^((2x^2)-1)^(1/2) find the range of f without using a calculator
March 14, 2013

Chemistry
12, because there is 1 mole of c6h12o6 and 2 moles of o2 so you have a 1:2 ratio
January 27, 2013

Calc
they drew a diagram for it and Q is actually on the left side of the graph making the line L an upward slant, and yes i meant "write"
January 27, 2013

Calc
Line L is tangent to the graph of y= x- (x^2/500) at the point Q a) find the x coordinate of point Q B) right an equation for line L C) suppose the graph above were a hill (measured in feet). There is a 50 foot tree growing vertically at the top of the hill. Does a spot light...
January 27, 2013

Calc
A particle moves along the x-axis in such a way that it's position in time t for t is greator or equal to 0 is given by x= 1/3t^3 - 3t^2 +8 A) show that at time t= 0 the particle is moving to the right. B) find all values of t for which the particle is moving to the left. ...
January 27, 2013

Given the curve x^2-xy+y^2=9 A) write a general expression for the slope of the curve. B) find the coordinates of the points on the curve where the tangents are vertical C) at the point (0,3) find the rate of change in the slope of the curve with respect to x I don't even ...
January 25, 2013

Physics
A hard ball dropped from a height of 1 m in earth’s gravitational field bounces to a height of 95 cm. What will be the total distance traversed by the ball?
January 3, 2011

Physics
What is the scientific principle involved in unmanned level crossing?
August 30, 2010

Physics
What is the scientific principle involved in unmanned level crossing?
August 30, 2010

physical science
(A)Speed = 8m/s (B)u=8m/s v=0m/s a=g=9.8m/s2 Use v=u-gt 0=8-9.8t 9.8t=8 t=8/9.8 But this is the time required by the tennis ball to reach the highest point. Time taken by the ball to return to the starting point=2t =2*8/9.8 =8/4.9 =1.632s
April 16, 2009

1. Pages:
2. 1