Recent content by wolves5

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    Calculating Beat Frequencies in Identical Strings with Varying Lengths

    Ok, so I added 0.0065 to 0.079318m and got 0.085818m. Then I did 34.9/ 0.085818 and got 406.6737 Hz, but that's not right either.
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    Calculating Beat Frequencies in Identical Strings with Varying Lengths

    Ok, so I used this new answer and followed the same steps as I described earlier and its still not the right answer. My answer was 241.927. Its greater than the original frequency, but still not the right answer.
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    Calculating Beat Frequencies in Identical Strings with Varying Lengths

    So then I did 34.9 / 220 and got 0.15863 for the wavelength. Then I divided that by 2 and got 0.0793. After that, do I follow the same steps as I desctibed in the problem?
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    Calculating Beat Frequencies in Identical Strings with Varying Lengths

    Two strings which are fixed at both ends are identical except that one is 0.65 cm longer than the other. Waves on both of these string propagate with a speed of 34.9 m/sec and the fundamental frequency of the shorter string is 220 Hz. a) What is frequency of the beat that would result if...
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    Oscillator Questions: Center Position, Amplitude & Period Calculations

    I got 2.331644763, which is also not correct.
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    Oscillator Questions: Center Position, Amplitude & Period Calculations

    I attached the picture. Can you see it? Its supposed to be an attachement.
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    Oscillator Questions: Center Position, Amplitude & Period Calculations

    Its still not right. I don't understand any other way to solve for it.
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    Maximizing Mass Motion with Minimal Hand Movement

    A student gets a 3 kg mass to oscillate up and down on bottom of a light vertical spring by pulling her hand up and down on the top end of the spring. The spring is a real spring with a spring constant of 94 N/m and a damping constant of 0.6 N sec/m. (a) At what approximate frequency should...
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    Oscillator Questions: Center Position, Amplitude & Period Calculations

    Alright, when I converted it, my final answer was 4.386885896 and that is not right.
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    Oscillator Questions: Center Position, Amplitude & Period Calculations

    How do you do that when there's no units for the numerator? I tried doing 4.4 * cos (2pi/29 * 2), but that didnt work. How do you convert it?
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    Oscillator Questions: Center Position, Amplitude & Period Calculations

    I did 4.4 * cos(29*2)= 2.33164. But this is not the right answer.
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    Oscillator Questions: Center Position, Amplitude & Period Calculations

    seconds?
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    Oscillator Questions: Center Position, Amplitude & Period Calculations

    The position of the center of the box shown is given by the equation: x = 4.4 m * cos(29/sec * t) (a) What is the position of the box 2 seconds after the oscillations have started? x = m I don't know how to start A. I plugged in 2 seconds for t in the above equation, but my answer...
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    Power Needed to Accelerate 1200 kg Car from Rest to 20 m/s

    So the kinetic energy or the 240,000 J was the Work?
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    Power Needed to Accelerate 1200 kg Car from Rest to 20 m/s

    Do you divide 240,000 by 6 seconds? I got 40,000 Watts when I did that which is 40 kW. So is it D?