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Q1) Figure shows a weigh bridge, with a beaker P with water on one pan and a balancing weight R on the other. A solid ball Q is hanging with a thread outside water. It has volume 40cm3 and weighs 80gms. If this ball is to be ...
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There is a cone with height h & radius r. An insect at the bottom edge of the con needs to complete the journey around the axis of the cone. Find the shortest distance the insect has to cover. *Image* this is the simplest pro ...
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Two cards are drawn from a well shuffled pack of 52 cards. Find the probability that one of them is a red card & the other is a queen. ...
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Two cards are drawn from a well shuffled pack of 52 cards. Find the probability that one of them is a red card & the other is a queen. ...
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A body moves at 100km/s. The coefficient of friction between the ground and the body is 1. It has a mass of 100kg. What distance will it travel before it stops? ...
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You may have seen that no new apps have been put up for over 6 months here.. Could you guys suggest some application (of course the feasibility is an issue) that could be made to explain a few things better to students? Like ...
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We have 12 Coins. One of them (we dont know which one?) has different weight from the others. With three time scaling (the scale has two pans) find the differrent coin. source:mathlinks ...
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We know that friction between two surfaces is due to the uneven nature of the surface of the bodies. But in case of 2 plane mirrors will there be any friction ????? they have perfectly smooth surfaces. The how can we keep one ...
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according to bohr n others an e doesnt fall into nucleus as inward coulombic force is balanced by outward centrifugal force.Still a huge amount of attractive do exist between the nucleus and electron....the e is saved from fa ...
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a[ic]+b[jc] is perpendicular to a[ic]+b[jc] (a and b are reals!) ...
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1) How many arrangements can be made with all the letters of the word "VENUS" such that the order of the vowels remains unaltered ? 2) In how many ways can 5 commerce and 4 science students be arranged in a row so that the co ...
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1) How many arrangements can be made with all the letters of the word "VENUS" such that the order of the vowels remains unaltered ? 2) In how many ways can 5 commerce and 4 science students be arranged in a row so that the co ...
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a[ic]+b[jc] is perpendicular to a[ic]+b[jc] (a and b are reals!) ...
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Consider a case we r standing on earth and a ball is moving with a velocity v0.... so its energy is=1/2mv2.......... now when we are standing on a platform which is moving with a velocity v0, so as we see the ball is moving w ...
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according to bohr n others an e doesnt fall into nucleus as inward coulombic force is balanced by outward centrifugal force.Still a huge amount of attractive do exist between the nucleus and electron....the e is saved from fa ...
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Find the hybridization of XeOF4 ...
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The metals soluble in aqua regia is/are a)Pt b)Au c)Ag d)Cu ...
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In which case the wavelength emitted is maximum? ...
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if 1=5 2=25 3=125 4=625 5=? ...
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Two men start to travel along the equator from the same point at the same time in the same direction with velocities of R/1000 m/s and 2R/1000 m/s respectively. If R is the radius of the earth along the equatoral plane, Find ...
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Which of the following orbitals is not symmetrical about Z-axis? ...
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Which of the following sets of quantum nos. is not permitted ...
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There are k different books and l copies of each in a college library.The number of ways in which a student can make selection of one or more books is ? ...
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There are n numbered seats around a round table.In how many ways can m(<n)persons sit around the table ? ...
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There are k different books and l copies of each in a college library.The number of ways in which a student can make selection of one or more books is ? ...
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There are k different books and l copies of each in a college library.The number of ways in which a student can make selection of one or more books is ? ...
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Two men start to travel along the equator from the same point at the same time in the same direction with velocities of R/1000 m/s and 2R/1000 m/s respectively. If R is the radius of the earth along the equatoral plane, Find ...
