GUYS HELP 4 PHYSICS PAPER 3

[Mohammed Khalaf]

needed stuff 4 physics paper 3????

 

[IsraJ]

Hope this helps

 

[Mohammed Khalaf]

thnx alot

 

[pk1947]

i just need to ask a ques......if for example in a question it says that da pressure of gas is (for example) 300 kpa.....do we hav to change it to pascals b4 finding any quantity????

 

[IsraJ]

Yes we have to. For all the calculations we have to change the quantities given into its SI unit E.g.- if the mass in the problem is given in grams, change it to kilograms

 

[pk1947]

k thanku

 

[Lujain M.]

can someone explain capacitors plz ? :S

 

[Yousif Mukkhtar]

can someone explain capacitors plz ? :S

It is a device that is used for storing electrical energy. It works by charging up, mainly a voltage from a battery.

 

[Lujain M.]

thats all what we have to know bout capacitors ? thanks btww

 

[IsraJ]

thnx alot

k thanku

Dont mention it

 

[Yousif Mukkhtar]

thats all what we have to know bout capacitors ? thanks btww

That's all actually,and you have to know it used for time delay circuits.

 

[Lujain M.]

ahaa..thaaank youu!

 

[tribianni]

needed stuff 4 physics paper 3????

ya mohd........
anta haza fi...maafi kulu prepartion hows it?
how U doin

 

[pk1947]

can sm1 pleaseeeeeeeeeeeeeeeeeeeeeeeeee explain what a transistor is n what is it used for...lyk awl da details..pleaseeeeee

 

[areebaization]

That's all actually,and you have to know it used for time delay circuits.

Could expalin what time delay cicuits r? I have NO idea :/

 

[Billy123]

Paper 32 Physics 2008......#7 explanation would be VERY helpful,if u can also scan and show your answer.....help please!

 

[Lujain M.]

june or nov ?

 

[Billy123]

June!

 

[mrnt3250]

Paper 32 Physics 2008......#7 explanation would be VERY helpful,if u can also scan and show your answer.....help please!

What kind of explanation?
The questions 7 in all variants, may/june and oct/nov is just about calculation and a blank space to answer..?

 

[Lujain M.]

um..i dont know how to explain but it will be the same way u draw light rays..draw a normal in fig 7.1 the wave fronts will sloping to the left and in fig. 7.2 u will first draw the normal then continue the arrow in the glass block and it should be towards the normal the wavefronts should be close to each other since they r moving to a denser medium so speed decreseas and wavelength of wave fronts decreases