1. ### Jaeger's method to find the surface tension

I'm studying for the exam day after tommorow and while reading the practical on jaeger method I found the following... P1-P2=2T/ r r is the radius of the capillary tube .............. advantages of this method.., •contact angle is not needed •can find surface tension of liquids like...
2. ### Siphon and bernouli theorum

Yes...so whats the physics behind that ? water drains from symetrically placed holes from the center will catch the ground at the same place....? all arcs are paths of water pouring.red color shows some special feature.. further...siphon needs a continuous flow of water.water bubbles disturb...
3. ### Siphon and bernouli theorum

1. I found this diagram on book but there weren't any description.can someone tell me, what its trying to tell specially by those two red lines meeting the ground at the same place...? 2.this is a diagram for siphon method of removing water. I have read somewhere that the siphon stops if the...
4. ### How firiction works here

Thanks a lot Cwatters !
5. ### How firiction works here

I am trying to figure out what happens here...and now I've stuck on this... Here it goes...., situation 1 Both contact A with B and A with ground are rough We increase the force P applied here from zero.When there's sufficiently big μs between A and B than that of A and ground,there's an...
6. ### Tension and slings

Tension in the rope is like this..(write click,view image to zoom) http://upload.wikimedia.org/wikipedia/commons/8/8f/Tension_figure.svg
7. ### Tension and slings

hey..I'm not a British.. :)...Not even near it I've not confused this weight and mass.... You may have confused this... I have use the brackets to show that 1000N has came from 100kg mass. and also I've taken the gravitational acceleration as 10ms-2. The whole system can hold a mass of...
8. ### Tension and slings

In both situation the tension of the rope is 1000N(100kg) Even in the second situation you will be able to hold only 100oN tension.You won't be able to double the maximum tension it can hold by bending the rope.But you can hold more masses by dividing the force created by the mass on rope,just...
9. ### Velocity change when an impulsive force is applied ?

Is it something like this ? -we just take velocity changing discontinuously mathematically though it changes continuously.Do we just dismiss what happens actually inside it? So how can we say that the velocity changes discontinuously ?
10. ### Velocity change when an impulsive force is applied ?

I think that the impulsive force generated by one ball on the other slows down to o ms-1 till it changes all its kinetic energy into elastic potential energy and speeds up to 2 ms-1 in the other direction changing all elastic potential energy into kinetic energy in milliseconds.I also thinks...
11. ### Velocity change when an impulsive force is applied ?

I was reading an article about velocity and displacement of a particle..It says "though the position of a particle is a continuous function of time,velocity sometimes isn't.For instance velocity is not continuous while an impulsive force is being applied." But I think that velocity changes...
12. ### Errors in Measurements

You know the surface of the hard board is not regular(even)..
13. ### Errors in Measurements

How can that be ?...we can have some mean value for that...when we take the hard board..there are +error and -errors...so the mean value will reduce the quantity of error
14. ### Errors in Measurements

edited.... Types of errors 1.Systematic errors Zero Error errors due to slow stopwatches errors due to incorrectly graduated scales parallax error 2.Random errors error due to unevenness of the measuring item Ways of comparing errors Absolute error\rightarrowerror when...
15. ### Errors in Measurements

let's take that we're going to measure the thickness of a hard board..well if the surface is uneven then we get a wrong value..but we can minimize the error by getting measure from more than one place and calculating the mean.. Why?..Isn't it a type of error..can't we divide errors into these...