Recent content by Galahad43

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    Stealth aircraft coating thickness

    Homework Statement Stealth aircraft are designed to not reflect radar, whose wavelength is typically around 3.0 cm, by using an antireflecting coating. Ignoring any change in wavelength in the coating, estimate its thickness. ____cm Homework Equations Well, that's just the issue. I...
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    Polarization Prob | Reducing Intensity at 62° Angle

    Homework Statement Two polarizers are oriented at 62° to one another. Light polarized at a 31° angle to each polarizer passes through both. What reduction in intensity takes place? ___.% Homework Equations I=IoCos^2((-)) The Attempt at a Solution Tried suing the above equation...
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    How to tell how far bullet went using sound

    Thank you. Got it
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    How to tell how far bullet went using sound

    Homework Statement A person holds a rifle horizontally and fires at a target. The bullet has a muzzle speed of 170 m/s, and the person hears the bullet strike the target 1.30 s after firing it. The air temperature is 72°F. What is the distance to the target? Homework Equations...