Sound heard by a person with normal hearing
Anyway, when your knuckle cracking consists of a sound level of 60 dB at a distance of 18 cm from your ear, determine the farthest distance from your hand at which the sound could be heard by a person with normal hearing?
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Estimate the standard free-energy change at the 25°C for the following reaction. Use standard electrode potentials.
You are provided a converging lens having focal length f is unknown. With just a ruler and a white piece of cardboard, determine how could you determine the focal length of this lens? Use the thin lens formula to give a proof which your process is
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Suggest the data set (n=80) of 4 eye colors (brown, blue, green, other). A) Develop a point estimate of probability that a student has blue eyes. B) What is the standard error of your point estimate?
Determine the numbers of grams of cadmium are deposited from an aqueous solution of cadmium sulfate, CdSO4, when an electric current of the1.55 A flows through the solution for 221 min?
Students were exam exam with 300 multiple choice questions. The distribution of the scores was normal and mean was 195with a standard deviation of 30.
A source releases two distinct wavelengths: 470 nm (blue) and 690 nm (red). The light hits a diffraction grating having 450 lines/mm at normal incidence. Recognize the colors of the first ten interference maxima on either side of the central maxim
The two narrow slits are 0.18 mm apart. The light of wavelength 562 nm illuminates the slits, causing the interference pattern on a screen 1.0 m away.
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