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[exploded diper]

F.Z.M. 7
Awesome12
asadalam
M.Omar
funky brat
Dark Destination
MarcoReus
@andanyoneelseiforgot

 

[asadalam]

View attachment 48177 what is the reason for part a 11

Assume the errors are both there.
1 error of digit plus 1 would give 2.05 + 0.01=2.06
1 error due of 1% would give = 2.05*1%= 0.0205

Add 2.06+0.0205=2.0805 (2.08 to 3sf.)

 

[MarcoReus]

I guess, highest possible is 2.07 (within the accuracy specified). However, there is the chance that we might by viewing a rounded figure (2.054 or something) so the highest possible estimate should be 2.08 V

 

[MarcoReus]

Assume the errors are both there.
1 error of digit plus 1 would give 2.05 + 0.01=2.06
1 error due of 1% would give = 2.05*1%= 0.0205

Add 2.06+0.0205=2.0805 (2.08 to 3sf.)

Shouldn't digit plus 1 mean 1.05 to 3.05?

 

[asadalam]

Shouldn't digit plus 1 mean 1.05 to 3.05?

Well that would change the amount by a very significant number,so obviously such a voltmeter wont be made.Its not explicit but i guess we always assume 1 digit from the left i.e 0.01.If it were 2 it could be 0.10 i think.

 

[asadalam]

https://fbcdn-sphotos-h-a.akamaihd...._=1414029821_19eca219b8db27b9be3ab5833b0b54ed
Shouldnt ans be just 2pi h?Cuz 1/27 or 27^-1 is eliminated as it has no variable?
I dont know the exact ans but wolframalphat says its 2pih/27

 

[funky brat]

F.Z.M. 7
Awesome12
asadalam
M.Omar
funky brat
Dark Destination
MarcoReus
@andanyoneelseiforgot

I have had enough of Physics in O'levels, don't take it anymore.

 

[F.Z.M. 7]

View attachment 48177 what is the reason for part a 11

First 1% of 2.05 = 0.0205
then since its to two decimal places, 1 digit means 0.01

Hence maximum can be 2.05 + 0.0205 + 0.01 = 2.0805, since it can show 2.08 only so that is the answer "to the nearest digit"

 

[Kamihus]

https://fbcdn-sphotos-h-a.akamaihd...._=1414029821_19eca219b8db27b9be3ab5833b0b54ed
Shouldnt ans be just 2pi h?Cuz 1/27 or 27^-1 is eliminated as it has no variable?
I dont know the exact ans but wolframalphat says its 2pih/27

You didn't mention you were differentiating it.
(pi/27) won't be removed as its not another term, its part of the only term. It would have been removed if it was h^2 + (pi/27).

 

[exploded diper]

 

[exploded diper]

 

[F.Z.M. 7]

View attachment 48195

I have no specific idea but I think here is how you do it

take out the horizontal component of the new velocity
subtract the real one from it, see if you get the answer?

and in which school are you?

 

[F.Z.M. 7]

View attachment 48196 View attachment 48196

seriously? Its so easy, remove the under root by taking the squares and replace the known with units.

 

[exploded diper]

seriously? Its so easy, remove the under root by taking the squares and replace the known with units.

yes but as u can see there are two unknowns A and Z

 

[F.Z.M. 7]

yes but as u can see there are two unknowns A and Z

I wonder which school you go to
Allah khair karey

"Each term in a homogenous equation has same base units" Kisee nay nae ptaya?

 

[exploded diper]

NOPE doesnt work
the answer is 2.0 *10^6 ; 120 degree from ox
i guess if u have to draw an arrow joining the head of the horizontal velocity with the head of the 60 degree velocity which is 120degree from ox

I have no specific idea but I think here is how you do it

take out the horizontal component of the new velocity
subtract the real one from it, see if you get the answer?

and in which school are you?

 

[F.Z.M. 7]

NOPE doesnt work
the answer is 2.0 *10^6 ; 120 degree from ox
i guess if u have to draw an arrow joining the head of the horizontal velocity with the head of the 60 degree velocity which is 120degree from ox

the question is tooo blurred , mind retaking the pic?

 

[exploded diper]

ohhhhhh....actually thora sa iss waqt damag kharab hai.......

I wonder which school you go to
Allah khair karey

"Each term in a homogenous equation has same base units" Kisee nay nae ptaya?

 

[exploded diper]

sure...

the question is tooo blurred , mind retaking the pic?

 

[F.Z.M. 7]

ohhhhhh....actually thora sa iss waqt damag kharab hai.......

har waqt hee hota hai