Recent content by NexusRich

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    Recommendations for courses

    Just got my atar: 99.05. Please recommend some courses in UNSW or USYD that is around 98.5 - 99 range, I dont want my atar to go to waste lol. Honestly I have no idea what courses I want to do.
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    Mod 6 phyz

    tried the emf formula several times but didnt get any of the answers, can someone pls give a step by step explanation of how to get the answer. thx
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    Mass spec MC question

    Please explain how to do this question
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    Mod 8 mass loss

    During a radioactive decay reaction, if the mass of the reactants is greater than mass of products, then mass is lost. I know that it is transformed into enery on the products side of the equation, but what exactly is that energy ? (is it potential energy, KE or radiation energy?)
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    NEED HELP !

    i am a bit confused, how do I find the upper limit for this question ? i can only find the lower limit which is 50
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    stuck with this question

    can someone pls help with part b and c, I tried it a few times and kept getting the wrong answer
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    Binomial normal distribution

    Can someone please provide working out and answers for these 2 questions, the answers that I got is totally different to that of the textbook and I dont really know what went wrong.
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    Mod 7 polymers

    Thank you so much. Could you please explain why condensation polymers produce n-1 moles of water ? I have seen some sources say that they could produce 2n-1 moles of water so it got me confused.
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    Mod 7 polymers

    Please provide working out and explain how to do this question
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    Dc motor and generators

    Can someone please explain how DC motor and generators work under different physics principles ?
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    Mod 5 non equilibrium

    For the non equilibrium dot point of the syllabus, I am not sure how to explain why photosynthesis and combustion are non equilibrium systems. I do know that photosynthesis has a decrease in entropy and increase in enthalpy, and is therefore non-spontaneous (positive Gibbs free energy) but what...
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    Module 8 Infrared spectroscopy

    Could someone please explain what are the function of the reference and the sample cells in the set up of infrared spectroscopy ? Thanks in advance
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    Mod 6 DC motor load and back emf

    Using the diagram below, could anyone please explain why the current of the DC motor is very high and reaches its peak at the start ? Also, as it rotates faster, the back emf increases, so the net emf (voltage) decreases, but why the speed and the current of the motor eventually becomes steady...
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    Mod 6 AC induction motors

    Can someone please explain how AC induction motors work ? I get the part where they use rotating magnetic fields to induce a current in the conductor bars of the rotor. But I dont really understand how the 3 - phase induction works ( its graph and cycle). The textbook said that the 3 - phase...
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    Paper 1 section 1

    I just went through the 2019 Hornsby Girls Trial paper 1, and saw that there were lots of long texts and found it extremely unrealistic to finish reading them in the 10mins reading time. I also had trouble selecting the most important parts of the texts, because I felt like I would compromise...
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