Recent content by cupcakequeen

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    Calculating Wavelength from Double-Slit Interference Pattern

    Homework Statement A double-slit interference pattern is created by two narrow slits spaced 0.21mm apart. The distance between the first and the fifth minimum on a screen 60cm behind the slits is 6.2mm. What is the wavelength of the light used in this experiment? Homework Equations...
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    Calculating Fundamental Frequency and Wavelength of a Vibrating String

    yup. thanks!
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    Calculating Fundamental Frequency and Wavelength of a Vibrating String

    do I need to convert grams to kilograms?
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    Calculating Fundamental Frequency and Wavelength of a Vibrating String

    yes, all metric
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    Calculating Fundamental Frequency and Wavelength of a Vibrating String

    Homework Statement A 90 cm long steel string with a linear density of 1.1g/m is under 200N tension. It is plucked and vibrates at its fundamental frequency. What is the wavelength of the sound wave that reaches your ear in a 20 degree C room? Homework Equations f = 1/2L * sqrt T/mu v...
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    Length of Pendulum Homework: Find String Length

    I figured it out...I had period and frequency backwards
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    Length of Pendulum Homework: Find String Length

    13 oscillations/14 seconds = 1.07 for T, and 1/1.07 = 0.928s for f. Then I tried T = 2pi sqrt L/g, so 1.07 = 6.28 sqrt L/9.8m/s, then divided each side by 6.28 and got 0.170 = sqrt L/9.8, then squared each side, so 0.029 = L/9.8, then solve for L = 0.2842m, which is wrong according to...
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    Length of Pendulum Homework: Find String Length

    Homework Statement A 319g ball is tied to a string. It is pulled to an angle of 7.60 degrees and released to swing as a pendulum. A student with a stopwatch finds that 14 oscillations take 13.0s. What is the length of the string? Homework Equations I have already tried using T = 2pi...