Recent content by azzarooni88

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    Determinant Q54: Cofactor Expansion Solution

    I think my working is logical. I start off with 0=... and just don't continue writing 0 on the LHS as I solve for the RHS. Ultimately I get 0=x2 - x(b+a) +ab
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    Determinant Q54: Cofactor Expansion Solution

    solving the determinant equal to 0
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    Determinant Q54: Cofactor Expansion Solution

    Homework Statement Q54. Homework Equations Cofactor expansion (along 1st column) The Attempt at a Solution
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    Undergrad Who's moving towards whom in Doppler effect situations?

    Okay I agree. My bad. Thank you for fixing it. I've been wrong about a lot recently
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    Undergrad Who's moving towards whom in Doppler effect situations?

    look up online doppler equation if you don't believe me
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    Undergrad Who's moving towards whom in Doppler effect situations?

    I have not actually.
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    Struggling with Physics? Don't Worry, You're Not Alone!

    Hi, My names Aaron. I am 18 and have been interested in physics for a while now (around 2 years). I finished high school last year and decided to do an undergrad in physics. Im not one of the smart ones in my class. Probably near the bottom and seem to be losing motivation for the subject...
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    Undergrad Who's moving towards whom in Doppler effect situations?

    Right that makes sense and yes it is a source of sound waves. But when we calculate the velocity of the skydiver, why do we use that value as the velocity of the observer?
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    Undergrad Who's moving towards whom in Doppler effect situations?

    Thanks. But how can we add the velocity of the observer when its the skydiver that's moving?
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    Undergrad Who's moving towards whom in Doppler effect situations?

    Can you elaborate? My lecturer said it had something to do with the medium (air)
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    Undergrad Who's moving towards whom in Doppler effect situations?

    Hello all, (1st post) I would like some help with deciding if the source is moving towards the observer or vice versa in Doppler effect situations. The example that I am confused about is a skydiver holding a constant frequency emitting source during the descent. The skydiver is traveling at...