# Rahul

Popular questions and responses by Rahul-
## chemistry

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

*asked on May 26, 2014* -
## Science

Find out the amount of heat required to convert 1 gm of ice at -30 ⁰C to 1 gm of steam at 120 ⁰C. Given the specific heat of ice is 2090 J/kg/⁰C, specific heat of water 4180 J/kg/⁰C, specific heat of steam is 2010 J/kg/⁰C, latent heat of ice to

*asked on June 3, 2020* -
## English

Write the characteristics of lencho.

*asked on June 21, 2017* -
## Geometric progression

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

*asked on October 13, 2016* -
## Chemistry

what is the OH- concentration of 0.08 M solution of CH3COONa

*asked on May 4, 2017* -
## trig

sec0+ten0-1/tan0+sec0+1=1+sin0/cos0

*asked on February 24, 2013* -
## math

12x + 16y=1/5 & 13x + 24y =1/4,find value of x & y.

*asked on April 7, 2013* -
## science

all acids are not corrosive.justify this statement

*asked on July 18, 2016* -
## Science

A boy travels a distance of 10 m towards south and then he runs towards east and travels 12 m in that direction. Calculate (i) the total distance travelled by the boy and (ii) the displacement from his initial position

*asked on May 5, 2018* -
## 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)

*asked on June 12, 2013* -
## MAnagerial Economics

In the long Run Who play a dominant role. Options:- Income, Demand, Supply, Price.

*asked on April 23, 2013* -
## 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.

*asked on October 13, 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

*asked on March 20, 2016* -
## Physics

The speed of the tip of a second hand of length 5 cm of a clock is m/s

*asked on January 20, 2018* -
## Geometric progression

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

*asked on October 13, 2016* -
## math

A box of constant volume c is to be twice long as it is wide . the material on the top and four sides cost three times as much per square metre as that in the bottom. what are most economic dimensions ?

*asked on August 30, 2017* -
## Math

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

*asked on August 4, 2014* -
## 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

*asked on November 12, 2013* -
## 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. ?

*asked on 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)

*asked on September 5, 2016* -
## AP Chemistry

What volume of each of the following bases will react completely with 21.00 mL of 0.500 M HCl? (a) 0.100 M NaOH (b) 0.0500 M Ba(OH)2 (c) 0.250 M KOH

*asked on September 24, 2011* -
## chemistry

When water is cooled to a temperature x , it gets converted into ice at temperature x by a process called p. And when ice at temperature x is warmed, it gets converted into water at the same temperature x in a process called Q a) what is the value of

*asked on June 11, 2011* -
## math

In how many years will RS 150 double itself at 4 persent simple interest?

*asked on December 1, 2017* -
## Math

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

*asked on December 14, 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.

*asked on October 13, 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

*asked on March 4, 2016* -
## 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.

*asked on June 7, 2013* -
## AP Chemistry

Write the balanced molecular, complete ionic, and net ionic equations for the reactions that occur when the following are mixed. (Type your answer using the format [NH4]+ for NH4+ and [Ni(CN)4]2- for Ni(CN)42-. Use the lowest possible coefficients.) (a)

*asked on September 24, 2011* -
## chemistry

how many moles of methane are required to produce 22g of CO2 after combustion

*asked on July 24, 2011* -
## math

a ball is dropped from a height of 5m assuming that on each bounce the ball return to 60percent of its height attained

*asked on June 18, 2019* -
## 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

*asked on 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

*asked on January 7, 2017* -
## 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

*asked on October 14, 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?

*asked on May 10, 2016* -
## dps dhanbad

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

*asked on November 30, 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?

*asked on June 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

*asked on January 18, 2015* -
## 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

*asked on September 20, 2014* -
## algebra

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

*asked on June 22, 2014* -
## physics

A spacecraft circling the moon at a distance of 384,000 km from the earth communicates by radio with a person on earth. How much time elapses between the sending and receiving of a signal?

*asked on April 2, 2012* -
## AP Chemistry

What mass of Na2CrO4 is required to precipitate all the silver ions from 96.0 mL of a 0.650 M solution of AgNO3?

*asked on September 24, 2011* -
## AP Chemistry

Write the balanced molecular, complete ionic, and net ionic equations for each of the following acid-base reactions. (Type your answer using the format [NH4]+ for NH4+ and [Ni(CN)4]2- for Ni(CN)42-. Use the lowest possible coefficients.) (a) HClO4(aq) +

*asked on September 24, 2011* -
## Physics

A light string, connects blocks 1 and 2 of masses m1 and m2. These blocks are further connected to a block of mass M by another light string that passes over a pulley of negligible mass and friction. Blocks 1 and 2 move with a constant velocity v down the

*asked on December 9, 2010* -
## Maths

Evaluating [20] gives [17] a)1140 b)1141 c)1131 d)1130

*asked on June 9, 2019* -
## Science

What happens when you bleach the fur of a German Shepherd?

*asked on May 18, 2019* -
## math

Five square flower beds each of sides 1m are dug on a piece of land 5m long 4m wide . What is the area of remaining part of land?

*asked on January 23, 2019* -
## Math

What is i?

*asked on December 28, 2018* -
## Geography

What happens when we move vertically upwards from the Earth ?

*asked on August 10, 2018* -
## Maths

If the area of rhombus is 240sq m and perineter is 68m find the length of diagonal.

*asked on June 8, 2018* -
## Math Calculus

A cylindrical tank with axis horizontal has a diameter d and a length L. It holds oil to depth d ( d

*asked on April 17, 2018* -
## Tourism

A person personality stay the same throughout life

*asked on March 29, 2018* -
## physics

Three point sized bodies each of mass M are fixed at three corners of light triangular frame . In the above problem about an axis perpendicular to the plane of frame and passing through a corner of frame the moment of inertia of three bodiea is ??

*asked on September 6, 2017* -
## Maths

Express 14 upon root six ➖ root 5 ➖ root eleven with rational denominator

*asked on June 13, 2017* -
## Maths

What is corresponding parts of a congruent triangle

*asked on June 3, 2017* -
## math

ice in a refrigerator melts at rate of 3 kg per hour. the temperature outside is 27°c. find the minimum power output of a motor used to drive the refrigerator,which just prevents ice from melting. latent heat of ice = 80 cal/g,J=4.2 joule/cal, 1 h.p = 746

*asked on March 29, 2017* -
## 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

*asked on March 24, 2017* -
## Science

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

*asked on January 4, 2017* -
## dp

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

*asked on November 27, 2016* -
## Accountany

What is legacy

*asked on October 13, 2016* -
## Math

n2-15n+100

*asked on 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.

*asked on 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

*asked on October 13, 2016* -
## Geometric progression

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

*asked on October 13, 2016* -
## Geometric progression

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

*asked on October 13, 2016* -
## Geometric progression

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

*asked on October 13, 2016* -
## Geometric progression

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

*asked on October 13, 2016* -
## Geometric progression

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

*asked on October 13, 2016* -
## Geometric progression

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

*asked on 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.

*asked on 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)+.....

*asked on October 13, 2016* -
## Geometric progression

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

*asked on October 13, 2016* -
## Geometric progression

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

*asked on 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+.....

*asked on 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.

*asked on 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

*asked on October 13, 2016* -
## Geometric progression

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

*asked on October 13, 2016* -
## Math

Express 0.54 as a rational number.

*asked on October 13, 2016* -
## Math

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

*asked on July 25, 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 ?

*asked on 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

*asked on April 30, 2016* -
## Maths

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

*asked on March 9, 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

*asked on March 4, 2016* -
## Science

Expression for bernaulli theorem

*asked on 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

*asked on February 18, 2016* -
## Algebra

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

*asked on 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

*asked on January 29, 2016* -
## geometry

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

*asked on January 9, 2016* -
## dps dhanbad

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

*asked on November 30, 2015* -
## KCC

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

*asked on October 14, 2015* -
## physics

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

*asked on 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?

*asked on June 6, 2015* -
## math

sin

*asked on May 10, 2015* -
## Physical Chemistry

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

*asked on April 21, 2015* -
## Physical Chemistry

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

*asked on April 20, 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

*asked on January 4, 2015* -
## s.p s

How we can write 26th December 2014 in five letters

*asked on December 26, 2014* -
## physics

Define Newton's first law .

*asked on December 7, 2014* -
## physics

Newton first law provides the measure of ???

*asked on 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

*asked on November 27, 2014* -
## Maths

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

*asked on October 28, 2014*

## Pages

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