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    Calculating effects of air resistance on a falling mass

    Calculating effects of air resistance on a ball of mass 0.67kg, being dropped from a height of 4.93m. I have worked out theoretically what time it would take without air resistance using s=ut + 0.5at(squared) however i cannot find an equation that will factor in air resistance. thanks
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    Physics Chat

    yeah its nice to just join in with random comments every now and then it was gd crack last night x
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    Physics Chat

    fair enough gd stuff will speech on sunday then =]
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    Physics Chat

    ahh ok thanx, can i ask why?
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    Physics Chat

    Is the physics chat just open certain days or what?
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    Calculating decay constants and half-life

    thanks lol, i do that alot it seems, better brush up on those skills before the exam lol.
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    Calculating decay constants and half-life

    well i dont know what i did but i have just gotten the right answer thanks lol xx
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    Calculating decay constants and half-life

    now i get 1.4448x10^15 which is still wrong, im so confused. x
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    Calculating decay constants and half-life

    oops that should have been 10^23 lol, thanks i'll try that x
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    Calculating decay constants and half-life

    A scientist wishes to find the age of a sample of rock. Realising that it contains radioactive potassium, which decays to give a stable form of argon, the scientist started by making the following measurments: decay rate of the potassium in the sample = 0.16Bq mass of potassium in the sample...
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    Opinions on determinism

    But at the same time something must help us make our desicsions, possibly the chemicals in our body and if thats the case, our chemicals dont change therefore our choices are already made.
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    Opinions on determinism

    yeah, basically do you believe that our path in life is already chosen.
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    Opinions on determinism

    I am writing an essay on determinism, i was just wondering what peoples opinions on it are, my arguement is going to be that it is possible, but i would like to include other peoples opinions and reasons. Thanks Steph.
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    Predicting the future using chemistry and physics

    In my physics lesson this morning my teacher posed a question. If we had a supercomputer that could predict the result of every chemical reaction in the body, could we predict what out reactions and thoughts would be in a certain situation. And if so, could we then predict how we would react to...
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    REALLY want an A

    thats fantastic thank you xx
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    REALLY want an A

    I know what you mean though, i would hate to do one in chemistry i'd probably blow something up lol,, we're pretty lucky in physics that we have an amazing teacher who help us as much as possible.
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    REALLY want an A

    lol might apply to exeter just for the pub lol,,, im doing ocr B the advancing physics course, it really interesting but we have to pieces of coureswork and a synoptic paper to do. one piece of cw is research and report for which im doing string theory and the other is a pratical investigation...
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    REALLY want an A

    thank you.
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    REALLY want an A

    thanks, i really am i've never been more sure i want to do something in my life =]
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    REALLY want an A

    i cant remember exactly my score but i am resitting both papers, i am doing OCR B the advancing physics course. thanks for advice.
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    REALLY want an A

    actually im in year 13, but i am doing an extra year at college after making some bad choices baout my AS Levels, so im doing A2 maths and Physics and AS biiology and Chemistry. I actually live in County Durham and its such a beutiful city and the university is fantastic and after visiting...
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    REALLY want an A

    Thanks that is really great thank you.
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    REALLY want an A

    i really want to study physics at durham University but they want A's, i really want to do it and i'll work till i drop for it, but i dont know where to start with studying. Any tips welcome. Steph
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    A-Level Practical Coursework

    Thanks, as stupid as it sounds that's the last place i would have looked lol.
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    A-Level Practical Coursework

    As part of my A2 advancing physics coursework i must decide on a pratical and plan and carry it out then write it up. Sounded easy at first but i cannot think of anything that would be interesting and easy to get decent results from. Any ideas or suggestions would be really appreciated...
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    String Theory

    I am currently an A-Level Student studing the Advancing Physics course at school. I became interested in the string theory after reading some books and watching Prof Stephen Hawking's documentary. I have decided to base my Research and Report Coursework on it but i am struggling to find an angle...
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    AS Coursework

    i have calculated velocity thn im gna get acceleration, ke, gpe, force and work done,, i just wondered whether there was anything else i could include? thanks Steph
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