What tension is needed to generate a wave
Transverse waves travel with the speed of 20m/s in a string beneath a tension of 6N. What tension is needed to generate a wave speed of 30m/s in the similar string?
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Determine the minimum thickness of the glycerin film (n = 1.47) on which light of wavelength 650 nm shines which results in constructive interference of the reflected light? Suppose the film is surrounded front and back through air.
A piece of string of 5.3M long consists of a mass of 15g. What should the tension in the string be to make, in a 125HZ wave, a wavelength 120cm long?
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If sample size of 224 were repeatedly chosen from the population of children born to mothers with HIV antibody, what would be the mean number of infected children per sample?
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A recent wind farm project in Idaho employs 7 turbines of 1.5 MW rating; 28 million kWh per year is anticipated from this site. Find out the capacity factor for this project (that is, energy output divided by the maximum output on an annual basis)
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