Physics, 26.02.2020 02:50 mnknmklhnklnj2583
Noise-canceling headphones are an application of destructive interference. Each side of the headphones uses a microphone to pick up noise, delays it slightly, then rebroadcasts the noise next to your ear where it can interfere with the incoming sound wave of the noise. Suppose you are sitting 1.8 m from an annoying, 200 Hz buzzing sound. What is the minimum headphone delay, in ms, that will cancel this noise? (The answer isn't T = 1/f ...there is something I'm missing here as the answer isn't 5ms)
Answers: 2
Physics, 21.06.2019 16:00
When fat comes in contact with sodium hydroxide, it produces soap and glycerin. determine whether this is a physical change or a chemical change. explain your answer
Answers: 2
Physics, 22.06.2019 07:40
Which lists the fundamental forces in order, from strongest to weakest? strong nuclear, weak nuclear, electromagnetic, gravitational strong nuclear, electromagnetic, weak nuclear, gravitational gravitational, weak nuclear, electromagnetic, strong nuclear electromagnetic, gravitational, strong nuclear, weak nuclear
Answers: 2
Physics, 22.06.2019 09:40
(a) assume the equation x = at^3 + bt describes the motion of a particular object, with x having the dimension of length and t having the dimension of time. determine the dimensions of the constants a and b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.) (b) determine the dimensions of the derivative dx/dt = 3at^2 + b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.)
Answers: 1
Noise-canceling headphones are an application of destructive interference. Each side of the headphon...
English, 25.02.2021 23:50
Advanced Placement (AP), 25.02.2021 23:50
Mathematics, 25.02.2021 23:50
English, 25.02.2021 23:50
History, 25.02.2021 23:50
Social Studies, 25.02.2021 23:50
Mathematics, 25.02.2021 23:50
Arts, 25.02.2021 23:50
Social Studies, 25.02.2021 23:50