Mathematics, 05.09.2020 22:01, yasmimyamamoto2015
The intensity, I, of a sound wave is defined as its power output per unit area and is measured in watts per square meter. A sound wave's intensity can be calculated using I=870pi^2a^2f^2, where a stands for the wave's amplitude in meters, and f stands for its frequency of vibration in hertz. If a particular sound wave has an intensity of 0.05 watts per square meter and an amplitude of 3 x 10^-5m, which of the following is most nearly its frequency? a)8.77 hertz b)60 hertz c)6,500 hertz d)4 x 10^7 hertz
Answers: 2
Mathematics, 21.06.2019 14:00, TylerBerk5309
Assume that a population of 50 individuals has the following numbers of genotypes for a gene with two alleles, b and b: bb = 30, bb = 10, and bb = 10. calculate the frequencies of the two alleles in the population’s gene pool.
Answers: 2
Mathematics, 21.06.2019 23:30, bnation5970
Mason and christian go to the movie theater and purchase refreshments for their friends. mason spends a total of $45.75 on 3 bags of popcorn and 6 drinks. christian spends a total of $71.50 on 6 bags of popcorn and 4 drinks. write a system of equations that can be used to find the price of one bag of popcorn and the price of one drink. using these equations, determine and state the price of a drink, to the nearest cent.
Answers: 2
Mathematics, 22.06.2019 01:10, journeyburks07
What is the angle measure, or angle of depression, between this bird and the bird watcher?
Answers: 1
The intensity, I, of a sound wave is defined as its power output per unit area and is measured in wa...
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