Physics: Post your doubts here!

[RoOkaYya G]

http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_s10_qp_11.pdf

Question 16 please anyone?

 

[thing007ping]

help needed. Can someone give the electromagnetic waves with their corresponding wavelenghts.

 

[RoOkaYya G]

help needed. Can someone give the electromagnetic waves with their corresponding wavelenghts.

http://csep10.phys.utk.edu/astr162/lect/light/spectrum.html

 

[thing007ping]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s10_qp_11.pdf

Question 16 please anyone?

Efficiency=power output/power input
power input=f x v
power output=(m x g x sin(alpha) x s)/f
u will get ans D

 

[thing007ping]

http://csep10.phys.utk.edu/astr162/lect/light/spectrum.html

thanks

 

[RoOkaYya G]

Efficiency=power output/power input
power input=f x v
power output=m x g x sin(alpha) x s/f
u will get ans D

thank u

 

[Bba321]

XRDXRD

more questions have been solved at
more explanations are available at
http://physics-ref.blogspot.com/2014/11/physics-9702-doubts-help-page-17.html


so, there's no need for me to solve them then?

Nope thanks

Can you tell me why the acceleration vs time graph in qs 6 is a curve and not a straight line?

http://papers.xtremepapers.com/CIE/...and AS Level/Physics (9702)/9702_w05_qp_1.pdf

 

[RoOkaYya G]

can't view the page

oops :S
i jst saw it. its a mistake :S i did the wrong copy paste :S

its november 2012 p 12 quest 10

 

[princess Anu]

Q40

 

[princess Anu]

Q78 pleasee e

 

[Ruman Wajih]

Do you have access on youtube?

yuppp

 

[princess Anu]

Please somebody provide an explanation about option A
thankyou

 

[Thought blocker]

yuppp

What was your question?

 

[Bba321]

Please help me with this question from June 2014/12
Answer is C

Thanks

 

[RahatMT]

International A/AS Level Physics

can someone post an online link for this book (pdf version or something)

thanks in advance

 

[Abeha Malik]

Plz tell me how to solve this question
Q. A speeding motorist is travelling at a constant speed of 40 m/s on a motorway. He passes a stationary police car which immediately accelerates at a rate of 2.5 m/s^2 to a constant speed of 50 m/s. Draw a sketch graph showing the variation of speed against time for each car and find
a. The tine it takes for the police car to catch the motorist
b. The distance each will have travelled by that time

 

[The Sarcastic Retard]

International A/AS Level Physics

can someone post an online link for this book (pdf version or something)

thanks in advance

This is the oldest version of book. Why taking this?
Answering you, I dont have it.

 

[The Sarcastic Retard]

Plz tell me how to solve this question
Q. A speeding motorist is travelling at a constant speed of 40 m/s on a motorway. He passes a stationary police car which immediately accelerates at a rate of 2.5 m/s^2 to a constant speed of 50 m/s. Draw a sketch graph showing the variation of speed against time for each car and find
a. The tine it takes for the police car to catch the motorist
b. The distance each will have travelled by that time

a : 4sec
b : Distance of motorist will be 238.4 Km and for police car : 278.4 Km

Are those answers correct?

 

[Awesome12]

http://papers.xtremepapers.com/CIE/...and AS Level/Physics (9702)/9702_w07_qp_2.pdf
Question 1 (b):

How do I calculate the uncertainty in R?

 

[Awesome12]

check
http://physics-ref.blogspot.com/2014/10/9702-november-2007-paper-2-worked.html

You've just cloned the marking scheme's answer. Why is the percentage uncertainty of R half the sum of the % uncertainties?