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...
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...
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...
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...
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...
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...
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 ?
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...
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...
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
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...
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...