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Biology; Chemistry; Physics: Post your doubts here!

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wwzn


Q2 a (ii) Height Difference = ?

Please show all the working and formulae as i don't know how to do it :(

the height will be calculated using the gravitational potential energy formula:
G.P.E=m*g*h
5.5*10^4=850*h
h= 5.5*10^4 / 850
= 64.7m
 
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Tayyari bilkul bhi nai hai :(( And i am really weak in theory .. MCQ mein tu aajayeingay Insha Allah 38-39/40 Theory ka Masla hai :(
No problem same here MCQ ki tiyari bohat achi hai annndddddd theory upar sa ja rahi hai
 
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Maybe Allah made exams because Allah wanted His people to remember him more than anything else when they(Exam) are near!
Well everyone Best Of Luck! Hope exam comes as you have prepared!
Cant believe XPF has more addiction power than Twitter does during exams!
Anyways, Dont stop praying ALLAH that you never go to Him except during exams instead think it as a Way to go to Him.
Stay Blessed! Be Prepared! And Dont let your stress take over you!

Over and Out....
 
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Maybe Allah made exams because Allah wanted His people to remember him more than anything else when they(Exam) are near!
Well everyone Best Of Luck! Hope exam comes as you have prepared!
Cant believe XPF has more addiction power than Twitter does during exams!
Anyways, Dont stop praying ALLAH that you never go to Him except during exams instead think it as a Way to go to Him.
Stay Blessed! Be Prepared! And Dont let your stress take over you!
Damn you are right... I think in near future exams ,#XPF would be the trending topic whole month... Lol
 
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Pretty simple .. using the principle of moment ..

wwd7


15*(30+30)=900 To find the moment

to find weight .. Moment=Weight*30
as moment equals 900 Divide the answer (900)/30 to get weight.

then DIVIDE weight by 10 to get the answer. <-- This is what i forgot to do.

that answers your question pal?
 
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