Recent content by Yh Hoo

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    Specific heat capacity

    wow thanks a lot! it is sufficient for me already as a pre u student.
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    Specific heat capacity

    Now consider two objects,A and B. A has a higher specific heat capacity that B. When both object is subjected to same amount of thermal or heat energy, rise in temperature in A is lower as our common reason(A has a higher specific heat capacity) But what stated by First law of thermodynamics...
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    Banked curve curcular motion

    hello good morning. Let look at the two diagram. (back view) In STATIC, a car is remauning static at a bank curve and its force diagram is as follows. for this case, the normal force is smaller than the weight of the car and friction exists in the directiin perpendicular to car. In MOTION...
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    Cure for cough

    I get to know from some website that stewing a mixture of banana, crystal sugar(not a candy!)and some water can for two hours can yield a soup that cure cough if consume together with the banana stewed. Is there an experimental scientific proof that this method of curing cough leave no side...
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    Question on Momentum

    Hmm, now there still seems like somethings is absent. It there a theoretical prove that total momentum is conserved also???
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    Question on Momentum

    Now, I gt another question, for a closed.system, if inelastic collision where kinetic energy is lost occurs between particles, surely the total kinetic energy before must be less than after one right?? the kinetic energy might be lost to the system as other form of energy, bt in this case the...
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    Question on Momentum

    We know that momentum of a closed or isolated system is always conserved . Now for INELASTIC collision, lets make It simple,consider a system with only two moving particles. If they collide inelastically, we know that energy is surely lost! now the system is no longer a closed system right...
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    Voltage across voltmeter

    Thanks for you guiding too. actually I know this type of arrangement is odd,but I purposely arrange in tis way to study d the operation of voltmeter. Thanks by the way.
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    Voltage across voltmeter

    Thanks for your concern very much . I hav gt my answer. Thanks a lot.
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    Voltage across voltmeter

    Now for this case when the voltmeter is not a ideal one, a small current is flowing. The voltmeter reading equal to the potential difference across itself (10V) and not emf of the battery(12V) . This happens because there is current flowing through the whole circuit, causing IR to exist across...
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    Voltage across components in a zero-current circuit

    Thanks for your guide. Another question,for caseA,what is the potential difference across the internal resistance n the Diode??
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    Voltage across components in a zero-current circuit

    Hi i am having some obstacles in building up my concept in dc circuit First of all, as we know, voltmeter is made up of a series circuit with both ends connected to two points of other circuits, while inside the series circuit, a galvanometer and resistor is connected in series. How the...
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    Comparing work done(Please help me mark my concept)

    For both situation, the person oh the ship is pulling the rope with a particular constant magnitude of force, F for a fixed duration, t. Because the medium of force F is a light inextensible rope, so force doing work is in the form of tension. Treat both the person and the boat as an entity and...
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    Ionic bond vs covalent bond.

    Thanks a lot i got my answer! Bt may i ask further? If we are using this concept to explain the bond energy of HF and HI, then instead of explaining in term of bond length, can we say that the more polar covalent bond of HF lead to higher ionic character and so a greater bond strength?? Thanks a...
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