ALL PHYSICS DOUBTS - POST HERE !!

[xMilishax]

Make sure it closes completely and the scale is 0 when its closed. Open the jaws, and put the object, close it. A scale on the barrel (scale next to jaw) shows the thickness in millimeters. Lets say the object has a thickness of 5.82. The scale on the barrel will show 5.5 and a lil bit. To know this lil bit, u have another scale on the thimble (the one next to barrel) this will tell u to add a certain amount to the 5.5. In this case it will show 0.32. U already have 5.5, now just add 0.38 to it and u will have 5.82
If u dont understand tell me...

Thank you. 

[Shazizzzle]

here ..

Shouldn't JI be INSIDE the block? :S :S
That's how I got it.

[Baladya]

A potential divider is when you have two resistors in a circuit, and the one with the higher resistance, has the higher p.d across it.

A potentiometer is a component yo use, usually like a rheostat, with a slider across a resistor, that varies the p.d across what's connecter to the slider. i.e full voltage, no resistance.
Full resistance, no voltage.

Thanks man

[wstrawberries]

In october november 2001, on pg 9..There is a question about temperature change. How do we determine which can reached its final temperature first and the initial temperature of water?
Thank you so much for your help.

[Vin]

Here u go

gud one +rep ..

[Baladya]

It points towards north pole.

Hey guys is this right? cuz i thought it showed where the field lines are going by pointing towards the south (field lines going in S) and pointing away from North (field lines going out of N)?? Or is he correct?

[Baladya]

gud one +rep ..

Hahaha I dont need ur sh*t man...
Nah just kidding xD Appreciated

[Mathewness]

draw a wire and a resistor on it ,,, i mean a rectangular block ( the symbol of a resistor) 

So how would you draw the circuit in question 2 (a) paper 6 november 08?

[helpmekthanks]

How do i make sure electrodes are the same length apart after i take them out of the water to measure? that questions been KILLING me.. .

[Airhead]

Hey guys is this right? cuz i thought it showed where the field lines are going by pointing towards the south (field lines going in S) and pointing away from North (field lines going out of N)?? Or is he correct?

Yeah - a compass always points towards the Magnetic North Pole of the Earth :l

[Shazizzzle]

In october november 2001, on pg 9..There is a question about temperature change. How do we determine which can reached its final temperature first and the initial temperature of water?
Thank you so much for your help.

The one that smoothened out earlier was the one that reached it's final temp most early. i.e R.

You continue all the three curves backwards, roughly. They meet at a point. That point is the initial room temperature.

[Shazizzzle]

How do i make sure electrodes are the same length apart after i take them out of the water to measure? that questions been KILLING me.. .

You don't say how. You just say you have to. :p

But...
I guess you can use some wool, or rectangular block in between while taking 'em out.
or use a tong to pull 'em out? :S i.e a clipper.

[TheLonelyIsland]

Hi, can someone plz answer the whole of q4, oct/nov 2009, p6... I just can`t wrap my mind around the readings, I always get a different one... It`s the focal length, that they just tell you to measure, the diameter and the thickness... I don`t get it, but I think that`s clear by now 
Thx, good luck to everyone!

[polltery]

Can someone help me wid Q B givin in the following img.!  .. (give ur Ans, diagram and explanation if possible)

[Mathewness]

Can someone help me wid Q B givin in the following img.!  .. (give ur Ans, diagram and explanation if possible)

Yes, Id like an answer + explanation for this as well