- Messages
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H
okhay .. Aik minmeko ni ata a part, sikhado...
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okhay .. Aik minmeko ni ata a part, sikhado...
A part is that we just use the graph to find the corresponding value of the temp given ..meko ni ata a part, sikhado...
How do we calculate resultant intensity
After subtracting 2 amplitudes then what?
Please ??
that change is for every 1 meter.Well, after this step why do we multiply by 0.62 m .
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s11_qp_23.pdf
Q6(c)(iv) can someone draw me the 0.2m of the graph? I just want to check whether i drew it correctly
Please ??
COME ON GUYS PLEASE HELPPPPPPP. Q 7 LAST PART FROM http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s13_qp_23.pdf
PLEASE PLEASE PLEASE
Some Mass lost in the form of EkI don't understand q 7 (b) (ii) from http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s13_qp_23.pdf
Someone please explain it? Aren't the masses equal on both sides?
for Y=92 -57
for Z =235- 148 - 3 cux 3 neutrons are there
well not sure about the ii) part
when a reaction occurs then energy is realease and due to release of energy mass can be lost too so thats y the mass is nt equal :/
Some Mass lost in the form of Ek
COME ON GUYS PLEASE HELPPPPPPP. Q 7 LAST PART FROM http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s13_qp_23.pdf
PLEASE PLEASE PLEASE
But the mass is 236 on both sides. I'm so confused.
We can answer this by thinking about the energy which is carried away by the particles (alpha or beta) and electromagnetic radiation (gamma) produced in the decay.Albert Einstein realised that we can think of energy as having mass. So if the mass of the nucleus decreases we must look around and find the energy which is carrying away this mass.The greater the apparent loss in mass the greater the amount of energy which is escaping.
To sum up we talk about "mass-energy" . In any closed system the total amount of mass-energy is conserved. If the mass goes down energy goes up and vice versa, but the total is constant
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