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  1. itsalberttrinh

    2005 hsc mcq6

    Could someone explain to me why the answer is B? Thanks :jump:
  2. itsalberttrinh

    Emission Spectra

    Could someone tell me how emission spectra form and the type of spectra Quasars produce
  3. itsalberttrinh

    Projectile Motion Question Help

    A missile is fired with speed Vm/s at an angle of elevation 'α'. After 21 seconds it hits a target with a horizontal distance of 1680m and a vertical distance of 945m. Take g = 10m/s/s i) Find speed and angle of projection (nearest degree) No Answers soz:p Thanks
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