# Posts by deepak

Total # Posts: 40

**Math**

Calculate the weight of 6.022 into 10 to the power 23 formula units of calcium carbonate

**physic**

if the length of wire is incrase by 20% then?what is the % incrase in resistance

**Maths, physics, chemistry, **

The weight of H2C2O4.2H2O required to prepare 500 ml of 0.2N solution is a)126g b)12.6g c)63g d)6.3g

**quantitative methods**

If for a Poisson variate x,P(x=0)=P(x=1) = k, prove that k=1/e. Lesson name Poisson distribution

**quantitative methods**

A six faced is so constructed that the probability of getting an even number is twice the probability of getting an odd number. Find the probabilities that out of 5 trials (1)all the five will give even numbers (3)2 or 3 trails will give even numbers ....find by binomial ...

**science**

advantages and disadvantages of difusion

**Maths**

In an exhibition , an umbrella is made by stitching 8 triangular pieces of cloth with some message written on two triangular pieces . If each piece measures 26 cm , 26 cm and 12 cm . Find how much cloth is required for each message.

**physics**

Si unit of specific inductive capacity?

**science**

Does sodium nitrate turn the phenolphthalein indicator pink ?

**math**

The length of the wire will be equal to the circumference of four semicircles that were made from it. So, if the diameter of one semicircle is 32 cm, then the radius is = 32/2 cm = 16 cm. Now, the circumference of a circle is 2*(pi)*(radius). Here we have a semi-circle, so its...

**math**

The answer is ant=46. If you are interested in finding out the steps through which we arrived at this answer, please email me at testemailfordg2(at)gmail(dot)com

**chemistry**

What is the volume of 3.11×10 to the power 23. Molecules of NH3 at S.T.P

**maths**

How can we find the g.p h.p

**mathematics**

13 cm

**science**

Why it is important to know the history of science in 300 words?

**commerce**

fixed cost is 40000 and variable cost are 60 percent of sales. If sales decrease by 20 percent then what is break even point?

**Physics**

The resultant of two vectors a and b is perpendicular to the vector a and its magnitude is equal to the half magnitude of vector b the find angle between a and b

**Maths**

Let x be the no. of questions I got right and y be the no. of question I got wrong. So, x+y=40........(1) & 4x-2y-21=25 4x-2y=46 2x-y=23........(2) comparing equations (1) and (2) 3x=63 x=21......(3) putting the value of equation (3) in equation (1) 21+y=40 y=19 So, 21 ...

**math**

in a isosceles triangle if two equal sides are 3.5 meter each.how long is third side?

**Adverb objects 2 Check please**

yes

**Delft Solar Cell**

Consider a crystalline PV module with the following output parameters mentioned at STC (Standard Testing Condition) conditions by the manufacturer. Pmax = 250W Voc = 50V Isc = 6A NOCT = 40°C Temperature coefficient of power = -1W/°C a) If the ambient temperature falls ...

**chemistry**

lowest+freezing+point+of+Kbr+AlNO33+CH3COONa+NaNO2+MgCl2+of+same+molality

**geometry**

The angles in triangle ABC satisfy 6sin∠A=3√3sin∠B=2√2sin∠C. If sin2∠A=a/b, where a and b are coprime positive integers, what is the value of a+b?

**geometry**

ABCD is a parallelogram. Let C′ be a point on AC extended such that the length of AC′=1.2AC. Let D′ be on the segment BD such that the length of BD′=0.9BD. The ratio of the area of the quadrilateral ABC′D′ to the area of the parallelogram ...

**SCIENCE**

AT WHAT HEIGHT ABOVE THE EARTH'S SURFACE DOES THE ACCELERATION DUE TO GRAVITY FALL TO 1% OF ITS VALUE AT THE EARTH SURFACE

**math**

The sum of 4 term of an G. P. Is 15/32 and sum of infinite term of same G.P. Is equal to 1/3

**Maths**

what is the integration of dx/Cos^4(x)

**Physics**

Find the average velocity of a projetile between the instants it crosses half the maximum heght.It is projected with a speed u at an angle ø(thita) with horizontal.

**Science**

how many gram of oxygen in persent in 36 gram of water?

**physics**

In this concept a=force/mass.if mass is doubled the a will be half according to first a.

**mathematics**

find the maximum value of √3 cosθ-sinθ.???

**mathematics**

if sin a=0.5 then find the value of cos3a

**Maths**

the sum of two opposite angles of a parallelogram is 150.find the angles of the parallelogram.

**physics**

50

**oscillation nad waves**

find the equivalent spring constant for a system of two spring of constant k 1 and k2 connected in series .use your result to explain to explain what happens when a sprin g of constant k is cut into two equal halves

**math**

200

**Math**

Two sums of money are proportional to 8:9.n if the first is 20/- the other is

**Math**

Rectangular plate is 6m wide and 12m long two holes of 2diameter have been gay cut in plate calculate the are of remaining plat?

**Geometry**

Perimeter of a right angled trangle is 40 cm. Hypotenus is 17cm. Find the area. Urgent help required. Thanks in advance

**GEOGRAPHY**

EXPLAIN THE SEX RATIO?