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http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_s10_qp_41.pdf
Question 8a
someone please explain
Question 8a
someone please explain
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Oops my bad, sorry, i did most of the calculations wrong 3000/60 = 50 revs per second. 1/50 = 0.02s or 20ms. So yeah, 10ms/cm would result in the pulse occupying two cm on the horizontal axis.ITS 3000 Rev per min not 6000 and the answer in book is 10ms /cm
These may be already answered check the thread! page 373!Thanks thought blocker and zainab
Still need help in questions : 14,16,22,25,26,27,28,31
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s08_qp_1.pdf
Thanks.
When decay takes place two gamma rays are emitted and by law of conservation of energy, energy must be conserved. So thehttp://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s10_qp_41.pdf
Question 8a
someone please explain
my pleasureBig thanks to 1357911 thoughtblocker and mehria!
9 (B) change in momentum = m v1 -m v2 = 0.1 x 20 - 0.1 x 9 (-30) (since direction opposite velocity sign changes into -ve for 30 m/s)= 5Physics questions - http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s09_qp_1.pdf
9,10,13,14,18,19,20,22,24,25,27,29,32,33,35,37,39
The vertical components of both H and W are cancelled by the upwards vertical component of T. Furthermore, T balances out the horizontal component of H too. Thus T has to be the largest of the three. C is the only option.http://maxpapers.com/syllabus-materials/physics-9702-a-level/attachment/9702_s13_qp_11/
Can someone please explain for me how to solve question 16 as soon as possible?
You mean vertical component of H and W are cancelled by upwards vertical componenet of TThe vertical components of both H and T are cancelled by the upwards vertical component of T. Furthermore, T balances out the horizontal component of H too. Thus T has to be the largest of the three. C is the only option.
Yup, sorry that was a typo. Thanks for pointing that out, I've edited itYou mean vertical component of H and W are cancelled by upwards vertical componenet of T
Yo sundeep thanks so much, understood everything except Q14, q29(why is it 2Ee and not Ee)9 (B) change in momentum = m v1 -m v2 = 0.1 x 20 - 0.1 x 9 (-30) (since direction opposite velocity sign changes into -ve for 30 m/s)= 5
In 14 we know that power = force x velocity. Change the question so you get the equation with k on one side and other quantities on other side now substitute force = power/velocity in the new equation to get the answer clear??Yo sundeep thanks so much, understood everything except Q14, q29(why is it 2Ee and not Ee)
For q33 .. i get how you got 0.3 A but dont understand next part, can you explain again? or thorougly
Someone help with this please ^
well it can be dangerous for a human being pulsed gives short bursts of ultrasound energy this is relatively safer than a continuous.Hello! Can anyone make it clear to me why ultrasound is pulsed and not continuous in ultrasound scan??
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