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Oh gosh I've never come across it! Thank you so muchYESS very important formula!
1/2 x 3 x 30 - 1/2 x (5-3) x 20=25m
1/2 x 3 x 30 - 1/2 x (5-3) x 20=25m
u dont take six evn though they say after 5 i dunno its a thing they do 2 confuse us
i nvr evr use area of trapezium i use two seperate triangles the more simple u do ur working the more accurate ur answersorry but isnt the area for a trapezium 0.5*(sum of parallel sides)*height
Any one pls help me out wit dese questions plsss
Q 13 25 26 of N09
Q8 15 20 of J10 variant 12
q5 N10 variant 11
HELP WILL BE APPRECIATED THANKS ALOT
Wow, that is smart. Thank you!Since all questions have been explained apart from 15 so
For q15 Efficency=Useful Output energy/Input Energy multiplied by 100
Now Input energy=Force*Distance=Fs
For output energy if u read the question carefully the car is moving with constant speed v so it is not gaining kinetic energy.It is only gaining Potential energy.Now u have to calculate height.Whenever u need to calculate h and distance of slope and angle of slope with horizontal is given,use the formula
sin alpha=h/s so h=s sin alpha
Gain in P.E=m*g*s sinalpha
m*g*s sinalpha divided by Fs giving u D as answer
Thank you!27.. electric field is away from the observer and into the page.. elecrtic field is always from positive to ngative... this means that the observer is facing positive plate directly... electrons would be repelled by the negative plate and will move towards the positive plate... behind where the observer is standing... i think...
Thank you!Q no 4 da formula P=W/t.work done is energy so A
i dont think it means sumthinhttp://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w10_qp_12.pdf
Can someone explain Q22? What effect does the rigid box have?
http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w10_qp_12.pdf
Can someone explain Q22? What effect does the rigid box have?
i dont think it means sumthin
Thx for the help! I wouldn't be able to figure this out without ur help!It certainly does mean something. The rigid box keeps the spring from extending beyond a fixed point. This is done because the question wants a high sensitivity for small masses and a low sensitivity for higher masses. It will be sensitive until the top spring with low constant comes in contact with the rigid box and won't extend any more. At that point, only the lower spring with larger K would extend.
u r suppose to know the wavelength range of all the waves from which
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