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Can anyone tell me about waves and superposition on skype? Please
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The answer is attached to the MS word. Didn't do the last three coz didn't have time. maybe some other timeguys please help me to solve this questions 10,19,21,23,26,28,29,31,34,36,37,38
In short, acceleration is the rate of change of velocity... and velocity is the speed in a given direction (Speed is a scalar quantity & velocity is a vector quantity).Kindly, can someone explain the relation between acceleration and velocity? And how to find acceleration from a velocity time graph?? Thank's in advance fella's
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w06_qp_2.pdf
In question no. 3(b) of the paper above, why do we have to multiply the mass of alpha particle (4) by 1.66 x 10^-27?
If you consider qn c(ii), the mass used is just 4 (Without multiplying by 1.66 x 10^-27).
Could anyone please explain this?
Thanks
HELP PLAESE QUESTION 5
Aaaahhh, now i get it.. Thank you so muchh!! But what if we have constant velocity increase in a VELOCITY-TIME GRAPH, can we use the formula (a=v-u/t)?In short, acceleration is the rate of change of velocity... and velocity is the speed in a given direction (Speed is a scalar quantity & velocity is a vector quantity).
To calculate acceleration from a velocity-time graph, you are supposed to find the gradient of the linear section of the graph. If the acceleration to be found is at a curved point, draw a tangent at that point and find the gradient.
Hope that helped
for first part for destructive interference waves phase difference between the two waves should be 180 or we can say that they are out of phase by 180 thats how complete destructive interference occurs.HELP QUESTION 5
x=ut+1/2(at^2)help q8
dear i have answer q8 already i am goin to answer 11 just in a minutehelp this question plaese 8 and 11 mcq
thanks
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