# Posts by Rahul

Total # Posts: 154

**Physics**

Find the distance of the image when an object is placed on the principal axis at a distance of 10 cm. In front of concave mirror whose radius of curvature is 8 cm

*March 24, 2017*

**Math**

a swimming pool is 40m long 25m wide 6m deep find a cost of cementing of its floor and walls at the rates of ?135 square per meter

*February 1, 2017*

**math**

In an election there were 2 candidates the winner poled 53% votes and won by 9600 votes find total number of votes

*January 7, 2017*

**Science**

A craane lifts an 8000N height 75m to the top of a buildings in 30s. How much power does the crane use?

*January 4, 2017*

**Math**

1408 cm²

*December 14, 2016*

**Math**

A rectangular strip 25cm*7cm is rotated about the longer side. find the total surface area of the solid thus generated.

*December 14, 2016*

**dp**

What is the pressure due to a man weighing 80 kg standing on his feet? Area of his feet 160 Sq. Cm

*November 27, 2016*

**Geometric progression**

Sir it is last question after that no post any question

*October 14, 2016*

**Geometric progression**

If the fifth term of a G.P. Is 81 and second term is 24, find the g.p. Sir this question answer 16,24,36,54 please help

*October 14, 2016*

**Accountany**

What is legacy

*October 13, 2016*

**Math**

n2-15n+100

*October 13, 2016*

**Geometric progression**

I don't know sir please help me

*October 13, 2016*

**Geometric progression**

If the continued product of three numbers in G.P. is 216 and the sum of their products in pair is 156. Find the numbers.

*October 13, 2016*

**Geometric progression**

Three numbers whose sum is 15 are in A.P. If 1,4,19 be added to them respectively the resulting number are in G.P find

*October 13, 2016*

**Geometric progression**

Express 0.54 as a rational number. sir this question answer is 6/11

*October 13, 2016*

**Geometric progression**

Fourth term of a G.P. is 40 and the tenth term is 2560. find the seventh term.

*October 13, 2016*

**Geometric progression**

If 5th and 8th terms of a G.P. be 48 and 384 respectively. find the G.P.

*October 13, 2016*

**Geometric progression**

The first term of a G.P. Is 5 and the common ratio is-2. What is the 6th term?

*October 13, 2016*

**Geometric progression**

Fin the sum of the series 1+2+4+8+....to 12 terms.

*October 13, 2016*

**Geometric progression**

Find the sum of the series 4+44+444+....to n terms.

*October 13, 2016*

**Geometric progression**

Find the sum of the series 0.5+0.55+0.555+....to n terms.

*October 13, 2016*

**Geometric progression**

Find the sum of 8 terms of the G.P. 3,6,12,24,..... .

*October 13, 2016*

**Geometric progresson**

If a be the first term, b the nth term and p the product of n terms of G.P.,show that p2=(ab)n.

*October 13, 2016*

**Geometric progression**

The sum of n terms of a series is a.2n-b, find its nth term. are the terms of this series in G.P. ?

*October 13, 2016*

**Geometric progression**

Find the nth term and the sum to n terms of the series: 1+(1+2)+(1+2+2>2)+.....

*October 13, 2016*

**Geometric progression**

Find the sum of the geometric series 1+1/2+1/4+1/8+.....to 12th terms.

*October 13, 2016*

**Geometric progression**

Find the sum of series: 1+3x+9x2+27x3+...to

*October 13, 2016*

**Geometric progression**

First term and the sum of an infinite G.P. are 2 and 3 respectively. find the common ratio and sum upto n term.

*October 13, 2016*

**Geometric progression**

Find the sum upto infinite: 2/5+3/5>2+2/5>3+3/5>4+2/5>5+3/5>6+.....

*October 13, 2016*

**Geometric progression**

The first term of an infinite geometric progression is 1 and the sum of the terms is 13, find common ratio.

*October 13, 2016*

**Geometric progression**

The sum of infinite number of terms of a decreasing G.P is 4 and the sum of the squares of its terms to infinity is 1/3

*October 13, 2016*

**Geometric progression**

The sum of an infinite g.p. whose common ratio is numerically less the 1 is 32 and sum of the first two is 24.

*October 13, 2016*

**Geometric progression**

Find the sum to the n terms: 5+55+555+.......

*October 13, 2016*

**Math**

Express 0.54 as a rational number.

*October 13, 2016*

**Science**

500g of water at 100°c is mixed with 300g of water at 20°c.specific heat capacity of water is 4.2Jg°c.find the final temperature of mixture. (Physics)

*September 5, 2016*

**Math**

Show that of all the rectangle inscribed in a given circle,the square has the max area

*July 25, 2016*

**science**

all acids are not corrosive.justify this statement

*July 18, 2016*

**chemistry**

Henry's law constant for N2 and O2 is 1.6 *10^-6and 8.77*10^-7 molal/mm Hg at 298k.Air has 78 mole percentage N2 and 21 mole percentage O2.at atmospheric pressure the ratio of solubility of N2 and O2 in water is?

*May 10, 2016*

**Average**

In a class 20% students failed 60% students scored average marks and the remaining above average marks find number of students in the class ?

*May 6, 2016*

**Rt**

if a boy present age is 7 yr & his uncle present age is 31 after how many yr his uncle age was twice of his boy age

*April 30, 2016*

**mathematics**

Find the angle of depression of a boat from the bridge at a horizontal distance of 25 m from the bridge if the height of the bridge is 25 m

*March 20, 2016*

**Maths**

Find the volume of a cuboid whose base area is 10metercube and height is 6meter

*March 9, 2016*

**Physics**

The near point of a patient's eye is 58.2 cm. (a) What should be the refractive power ℛ of a corrective lens prescribed to enable the patient to clearly see an object at 22.0 cm? ℛ = dpt (b) When using the new corrective glasses, the patient can see an object ...

*March 4, 2016*

**Physics**

A person can see an object in focus only if the object is no farther than 35 cm from the right eye and 58 cm from the left eye. Write a prescription for the refractive powers ℛ (in diopters) for the person's corrective lenses. right eye dpt left eye dpt

*March 4, 2016*

**Science**

Expression for bernaulli theorem

*February 21, 2016*

**math**

If P (x, y) is a point on da line segment joining da points A(6,8) & B(-8, 6) prove that x+y=2

*February 18, 2016*

**Spelling**

Crazy glue is more cohesive than regular Elmer's glue. I have a very cohesive group of coworkers that help to reach our goals.

*February 9, 2016*

**Algebra**

is (x^2-a^2) the same as (x-a)^2. If so would (x^2-a^2)/x-a = x-a?

*February 9, 2016*

**Physics**

find the angle of banking of curved railway track of radius 600m if the maximum saftey sppedd limit is 54;km/hr .if distance beetween the rails is 1.6m find elevation ofvthe outervtrack above the inner track

*January 29, 2016*

**geometry**

if a circle is divided into 12 parts then what is the measure of each part in terms of radius

*January 9, 2016*

**dps dhanbad**

subject: math. distance=8m,speed=42/5centi/sec,time=?

*November 30, 2015*

**dps dhanbad**

distance=8m,speed=42/5centimeter/sec,time=?

*November 30, 2015*

**KCC**

An electron has a speed of 500 m/Sec with uncertainty of 0.002% what is the uncertainty in position?

*October 14, 2015*

**physics**

which type of forces does a proton exerts on a proton inside nucleus? my answer-repulsion force

*August 15, 2015*

**English**

If they or someone nearby had only known the simple rules of water safety. How to make a question of this passage?

*June 6, 2015*

**physics**

car moving on a straight road covers a distance of 1.5 km due east in 150 second.what is the speed of the car?what is it's velocity?

*June 1, 2015*

**math**

sin

*May 10, 2015*

**Physical Chemistry**

The weight of one atom of uranium is 238amu. Its actual weight is ......g.

*April 21, 2015*

**Physical Chemistry**

The weight of one atom of uranium is 238amu. Its actual weight is ......g.

*April 20, 2015*

**chemistry**

are bhai answer Kya hai??????

*February 1, 2015*

**Theory of machines**

A locomotive is running at a constant speed of 100 km/ h. The diameter of driving wheels is 1.8 m. The stroke of the piston of the steam engine cylinder of the locomotive is 600 mm. Find the centripetal acceleration of the crank pin relative to the engine frame.

*January 18, 2015*

**Mathematics**

A cylindrical tube, open at both ends, is made of metal. The internal diameter of the tube is 10.4cm and its height is 25 cm. If thickness of the metal is 8mm everywhere, calculatd the volume of metal in the cylinder

*January 4, 2015*

**s.p s**

How we can write 26th December 2014 in five letters

*December 26, 2014*

**physics**

Define Newton's first law .

*December 7, 2014*

**physics**

Newton first law provides the measure of ???

*December 7, 2014*

**math**

find twonumbers such that the sum of twice the first and thric the second is 92 and four times the exceeds seven times the second by 2

*November 27, 2014*

**Maths**

Show that if the diagonals of a quadrilateral bisect each other at right angles, then it is a rhombus.

*October 28, 2014*

**physics**

Two identical small marbles A and B can be seen. A is at rest while B moves towards A at uniform velocity. The track is smooth towards left of P while it offers a resistance of 0.1 m/s2 towards its right. After some time, the marbles are seen at rest 25cms apart. After ...

*September 20, 2014*

**Physics**

v^2 - u^2 = 2as v^2 = 2(9.8)(2) + 35^2 v^2 = 39.2 + 1225 v^2 = 1264.2 v = 35.5

*September 20, 2014*

**statistics**

a study was conducted of all 1849 students in a certain country.whether the value is parameter or statistics

*September 20, 2014*

**physics**

if a electricity genreter move with the speed of 60km/h how much electricity they generate in 1 minute in volt

*September 8, 2014*

**Math**

Sin square 5 degree plus Sin square 10 degree plus Sin square 15 degree plus..........Sin square 90 degree

*August 4, 2014*

**math**

Question 2Sin50'cos60' answer sin110'-sin10'

*July 31, 2014*

**math**

Question Sin120-sin40=2cos80.sin40. Sidhd karo

*July 31, 2014*

**math**

Sin120-sin40=2cos80.sin40. Sidhd karo

*July 31, 2014*

**logical thinking**

Monica has eleven children and eleven apples. She wants to divide equal pieces of apples so that Apple is still left out.

*July 23, 2014*

**Marry gold english 2**

The Child in the poem think about his drawing will be as good as thiers.

*June 22, 2014*

**algebra**

Monika had 5 boxes of chocolates with her. If each box contains 25 chocolates. find the total chocolates she had.

*June 22, 2014*

**Physics**

Consider problem U concerning the geosynchronous satellite of mass 50 kg. It orbits at a radius of 42,300 km with a speed of 3076 m/s. a) How much energy is needed to lift the satellite from the earth's surface (Re=6,370 km) up to that radius? b) How much kinetic energy ...

*June 17, 2014*

**physics**

5 × 10ooo

*June 8, 2014*

**chemistry**

identify the type of reaction:- FeSO4 + heat ----------> Fe2O3 + SO2 + SO3

*May 26, 2014*

**physics**

0. 61

*May 9, 2014*

**physics**

Three tug boats are pulling on a cruise ship with three ropes. Two pull with a force of 1800 N each at angle of [N15°E] and [S24°E]. If the net force on the ship is zero, what must the tension in the third rope be?

*April 23, 2014*

**maths**

how to write 04 feb 2014 in 5 letters without using numbers.

*February 4, 2014*

**science**

Extraction of copper

*February 2, 2014*

**physics**

Find an expression for the energy densityin terms of stress and strain.

*January 2, 2014*

**physics**

Is average speed the magnitude of average velocity?

*January 2, 2014*

**buisness**

I need help on a project on 'case study on soft drinks' of about 30 pages which should include information abou history,nature of soft drinks, process of manufacturing and a casestudy on a particular softdrink brand. Please provide some websites where i can get ...

*December 15, 2013*

**buisness**

I need help in a project on 'case study on soft drinks' of about 30 pages . Please provide some websites details which can help me. It should include information abou history,nature of soft drinks, process of manufacturing and a casestudy on a particular softdrink brand

*December 15, 2013*

**accounts**

I need help in a project on 'accounting process' . It should begin with a storyline in which a buisness have to be chosen(i have chosen a tyres dealer). Then transactions taking place between 1 april 2013 to 30 june 2013(accounting period is 3 months). It should ...

*December 15, 2013*

**Pre Calculus**

2tanx

*December 14, 2013*

**mathematics**

The members of a high school basketball team are driving from calgary to vancouver,which is a distance of 675km.Each tire of their van has a radius of 32cm.If the team members drive at constant speed and cover the distance in 6h 45 min,what is the angular velocity,in radians/...

*November 12, 2013*

**Physics Urgent please help**

f+0.63

*October 15, 2013*

**Mathematics**

In a family of two children, find the probability that the family has two boys given that the first child is a boy.

*August 23, 2013*

**science**

Because the others require a medium in order to transmit and receive the signals from outer space

*August 3, 2013*

**chemistry**

calculate the freezing point of an aqueous solution containing 10.50 g of MgBr2 in 200 g of water (MgBr2=184 g, Kf for water =1.80 K kg mol-1)

*June 12, 2013*

**physics**

i don't know

*June 11, 2013*

**physics numeral**

A person rows his boat in stream with a speed of 2.0 m/s.Water in the stream is flowing perpendicular to the direction of flow,find graphically his resultant velocity.

*June 7, 2013*

**physics numeral**

An object of mass of 0.5 kg is whirled at the end of a string 0.8 m long.If the string makes three revolutions in 1.2 s,find the tension in the string.

*June 7, 2013*