Recent content by YES q THE zU19

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    Specific Heat Capacity Graph Question

    Thank you for your reply. I figure it out. There was only one change of state from liquid to solid, hence one horizontal line to show this. Regards
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    Specific Heat Capacity Graph Question

    Homework Statement My answer is question 3 part c the graph. SHC = c http://www.ocr.org.uk/Images/61757-question-paper-unit-g484-the-Newtonian-world.pdf [See page 7]Homework Equations E=mcdelta theta Power=Energy/Time Therfroe Power*Time = Mass*c*delta theta. The Attempt at a Solution See in...
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    Undergrad Prove mass, velocity and KE are their respected quantities

    Thank you for this.
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    Undergrad Prove mass, velocity and KE are their respected quantities

    Thanks dale.
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    Undergrad Prove mass, velocity and KE are their respected quantities

    Thank you.
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    Why does a capacitor discharge slowly?

    Thank you for your help. :)
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    Undergrad Prove mass, velocity and KE are their respected quantities

    Thank you, this was what I was looking for. So in general we have; scalar*scalar= scalar? scalar*vector = vector vector*vector = scalar. What about work done though? Work done = energy So force * distance = vector * scalar? = vector Could you also kindly tell me about how to prove mass...
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    Undergrad Prove mass, velocity and KE are their respected quantities

    I have done the example for momentum. And I gather that scalar*vector=vector. I know that mass and KE is scalar, velocity is vector. Can someone show me proofs like for what I have said above. Not just mass is scalar because it does not have direction etc. Thank you.
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    Why does a capacitor discharge slowly?

    After giving this some thought; V = V0 e^(-t/RC) so as resistance increases then voltage decreases? Doesn't this contradict what you said - or am I totally wrong. And what does DCR mean :/ Digital something resistance?
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    Describe absorption experiment to distinguish 3 radiations

    Interesting idea I had not thought about that. Yes I gather that. Thank you for your help.
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    Describe absorption experiment to distinguish 3 radiations

    All good points. alpha ~ 0.2mm of paper beta ~ 1mm Pb/1-10 mm Al gamma ~ 1-10cm of Pb/Several m of concrete Measure initial count and discount it from the radiation present? Could you not just use paper for example, alpha won't be able to penetrate it then say that, that radiation is...
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    Describe absorption experiment to distinguish 3 radiations

    Homework Statement I could not fit the whole problem typed out but; Describe with a diagram, an absorption experiment to distingush between alpha, beta and gamma radiation. Homework Equations None required, written question. The Attempt at a Solution Source, absorbers placed in front of...
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    Why does a capacitor discharge slowly?

    Thank you very much. You have been very helpful.
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    Why does a capacitor discharge slowly?

    The internal resistance of the voltmeter which was very large.:)
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    Why does a capacitor discharge slowly?

    Thank you very much for your help. Just to consolidate though, the internal resistance causes the overall resistance to be large in this circuit?