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Physics Test 20...

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  • Question 1
    4 / -1

    A sound wave of wavelength λ travels towards the right horizontally with a velocity V. It strikes and reflects from a vertical plane surface, travelling at a speed v towards the left. The number of positive crests striking during a time interval of three seconds on the wall is

  • Question 2
    4 / -1

    An athlete’s coach told his team that muscle times speed equals power. What dimensions does he view for “muscle”?

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