Mathematics, 17.02.2020 18:16 hairystrong1915
A loudspeaker having a diaphragm that vibrates at 980 Hz is traveling at 75.0 m/s directly toward a pair of holes in a very large wall in a region for which the speed of sound is 344 m/s. You observe that the sound coming through the openings first cancels at 13.9 ∘ with respect to the original direction of the speaker when observed far from the opening. How far are the two opening?
Answers: 2
Mathematics, 21.06.2019 18:30
Acoin bank containing only dimes and quarters has 12 more dimes than quarters. the total value of the coins is $11. how many quarters and dimes are in the coin bank?
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Mathematics, 21.06.2019 19:30
Asurvey of 45 teens found that they spent an average of 25.6 hours per week in front of a screen (television, computer, tablet, phone, based on the survey’s sample mean, which value could be the population mean? 2.3 hours 27.4 hours 75.3 hours 41.5 hours
Answers: 1
A loudspeaker having a diaphragm that vibrates at 980 Hz is traveling at 75.0 m/s directly toward a...
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