Recent content by spokorne

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    Longest Wavelengths in 128 cm Tube: Open at Both/One End

    Homework Statement What are the three longest wavelengths for standing sound waves in a 128-cm-long tube that is (a) open at both ends and (b) open at one end, closed at the other? Homework Equations W=V/F The Attempt at a Solution 128 cm because nothing bigger could fit in the tube
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    Efficiency of a 10%-Efficient Car Engine: Energy Transfer and First Steps

    A 10%-efficient car engine accelerates the 1700 kg car from rest to 18 m/s. How much energy is transferred to the engine by burning gasoline? What should be my first step in attempting this problem?
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    Finding Resultant Force Components and Magnitude: Fx, Fy, F, and \gamma

    That's what I did previously and then then i found the difference in the two and it was incorrect
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    Finding Resultant Force Components and Magnitude: Fx, Fy, F, and \gamma

    how do you go about doing that?
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    Finding Resultant Force Components and Magnitude: Fx, Fy, F, and \gamma

    i tried making them into triangles and then using the lengths as the force. then i figured out the upward force and minused the downard force to find the total vertical force but it isn't right
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    Finding Resultant Force Components and Magnitude: Fx, Fy, F, and \gamma

    I've been stuck on this problem for too long and need help. Please explain the answer if possible. F1 has a magnitude of 8.80 n and is directed at an angle of \alpha= 65.0 above the negative x-axis in the second quadrant. F2 has a magnitude of 6.40 N and is directed at an angle of \beta =...