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Edexcel A2 Physics Unit 5 'Physics from Creation to Collapse' watch

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    (Original post by Uberuvy)
    Got a question for you guys,

    A mass of 0.08kg suspended from a vertical spring oscillates with a period of 1.5s.
    Calculate the force constant of the spring (2)
    T= 2pi * root of m/k where k is spring constant
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    (Original post by kosy91)
    under boyle's law:

    how do you plot the graph of pV against V???? and why??
    No idea why, pV would be a constant though always under Boyle's law. So it's a horizontal straight line from the value of pV.
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    (Original post by Sasukekun)
    No idea why, pV would be a constant though always under Boyle's law. So it's a horizontal straight line from the value of pV.
    yeah i have many books with such a graph. but i wonder why.......?!
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    (Original post by Sasukekun)
    No idea why, pV would be a constant though always under Boyle's law. So it's a horizontal straight line from the value of pV.
    Or if you plot a graph of P against V it should look like the graph of y = 1/x, but if you plot P against 1/V you will get a straight line.
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    we dont need to know about pulsars do we?
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    Carbon-14 has a half-life of 5730 years. Living organisms contain approximately 100 atoms for every 1020 atoms of stable carbon-12, . Estimate the age of a fossil which is found to contain approximately 12 atoms of for every 1020 atoms of .

    Guyz I need help in this
    Thanks in advance
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    can i have help with Q3 from the spec paper about the child swinging
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    (Original post by ishta)
    Carbon-14 has a half-life of 5730 years. Living organisms contain approximately 100 atoms for every 1020 atoms of stable carbon-12, . Estimate the age of a fossil which is found to contain approximately 12 atoms of for every 1020 atoms of .

    Guyz I need help in this
    Thanks in advance
    lambda=ln2/5730yrs
    N=12
    Nnaught=100
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    (Original post by Kameo)
    we dont need to know about pulsars do we?
    no. other than the fact that it's a rotating neutron star that emits energy in the form of radiowaves. [at regular intervals - hence the 'puls' bit]
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    Does anybody have the data sheet for tomorrow? need to know the formulas we aren't going to be given.
    Thanks
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    (Original post by hra_100)
    Does anybody have the data sheet for tomorrow? need to know the formulas we aren't going to be given.
    Thanks
    its in the specification
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    (Original post by kosy91)
    its in the specification
    Thank You, was looking sample assessment material.
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    hey guys
    lets go on qchat.rizon.net in 6PH05 and we can discuss every problem there online
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    http://qchat.rizon.net/ on 6PH05 people
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    (Original post by terminatorsb)
    http://qchat.rizon.net/ on 6PH05 people
    channel?
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    6PH05 and the 0 as in the number
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    the axes are obviously wrong, right?
    EDEXCEL -.-"
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    i dont get this either :/ someone help!!
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    not working cannot connect to remote server
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    (Original post by Bronze92)


    the axes are obviously wrong, right?
    EDEXCEL -.-"
    yh doesnt make sense.
 
 
 
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