Physics: Post your doubts here!

[Furqan Azam]

Can someone explain how to get maximum and minimum resultants of three forces e.g 3N, 4N and 5N. How the minimum is zero?

 

[princess Anu]

can somebody send me the link to 2003 Nov P1 nd its Examiner report please..

 

[nehaoscar]

I thought X and Y is actually the plastic region??
as shown here:

But then the answer is D :/ ???

 

[nehaoscar]

Why and how is it A?
Why not C ??

 

[funky brat]

I thought X and Y is actually the plastic region??
as shown here:

But then the answer is D :/ ???

It takes the same path to compress so it must be elastic only hence D.

 

[Furqan Azam]

I need your kind help on these MCQ's. Someone please explain them. Thanks.
May/June 2010/11
Q13, 20, 27, 29 and 33

http://maxpapers.com/syllabus-mater...ttachment/9702_may-june-2010-question-papers/

 

[Dream.Eater]

Why and how is it A?
Why not C ??

An electron is negatively charged so since the direction of the field goes from positive to negative, the electron is slowed down.

Since it began motion in a direction parallel to the field, it moves linearly.
It will only take a parabolic path once its out of the field, not while travelling in it

 

[Dream.Eater]

How on earth is the answer C?!

Btw this is from May 2003

 

[princess Anu]

use average currect which'll be 100+20/2 , multiply it by 8

View attachment 54096


How on earth is the answer C?!

Btw this is from May 2003

 

[princess Anu]

are numbr of protons conserved in a nuclear reaction?

 

[THARINDU AWESOME]

I thought X and Y is actually the plastic region??
as shown here:

But then the answer is D :/ ???[/QUOTE

 

[Awesome12]

Can somebody please explain this?

 

[THARINDU AWESOME]

a is the answer.cos ( (1/2k+1/3k)^-1 )is the total spring constant.use f=kx then find the x value

 

[Dream.Eater]

use average currect which'll be 100+20/2 , multiply it by 8

Oh......so that's how its done...
But dont you usually find the diffrence in current and multiply that by time???

 

[Dream.Eater]

are numbr of protons conserved in a nuclear reaction?

Yep, proton no on LHS must be equal to the proton no on the RHS

 

[THARINDU AWESOME]

Yep, proton no on LHS must be equal to the proton no on the RHS[/QUOTE
lol

 

[muhammadali233]

▬▬▬▬▬▬▬▬▬▬ஜ۩۞۩ஜ▬▬▬▬▬▬▬▬▬▬ ＤＡＭＮ ＴＨＩＳ ＣＯＭＭＥＮＴ ＩＳ ＦＡＮＣY ▬▬▬▬▬▬▬▬▬▬ஜ۩۞۩ஜ▬▬▬▬▬▬▬▬▬▬

 

[THARINDU AWESOME]

▬▬▬▬▬▬▬▬▬▬ஜ۩۞۩ஜ▬▬▬▬▬▬▬▬▬▬ ＤＡＭＮ ＴＨＩＳ ＣＯＭＭＥＮＴ ＩＳ ＦＡＮＣY ▬▬▬▬▬▬▬▬▬▬ஜ۩۞۩ஜ▬▬▬▬▬▬▬▬▬▬

what?????

 

[muhammadali233]

what?????

isn't it?

 

[THARINDU AWESOME]

use average currect which'll be 100+20/2 , multiply it by 8

2003 can be wrong