Mathematics, 03.12.2020 23:50 maribel2421
I = 870pie^2a^2f^2
The intensity, I of a sound wave is defined as its power output per unit area and is measured in watts per square meter (w/m^2) A sound wave's intensity can be calculated using the above equation, where a stands for the wave's amplitude in meters (m) and f stands for its frequency of vibration in hertz (Hz). If a particular sound wave has an intensity of 0.05 w/m^2 and an amplitude of 3 x 10^-5 m, which of the following is most nearly its frequency?
a. 8.77 hertz
B
80 hertz
c.6,500 hertz
d. 4 x 107 hertz
Answers: 1
Another question on Mathematics
Mathematics, 21.06.2019 16:30
Asequence {an} is defined recursively, with a1 = 1, a2 = 2 and, for n > 2, an = an-1 an-2 . find the term a241. a) 0 b) 1 c) 2 d) 1 2
Answers: 1
Mathematics, 21.06.2019 17:30
Miranda is braiding her hair.then she will attach beads to the braid.she wants 1_3 of the beads to be red.if the greatest number of beads that will fit on the braid is 12,what other fractions could represent the part of the beads that are red?
Answers: 3
Mathematics, 21.06.2019 21:30
Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a,b and c integers and a> 1
Answers: 1
Mathematics, 22.06.2019 04:10
If jobs arrive every 15 seconds on average, what is the probability of waiting more than 30 seconds?
Answers: 3
You know the right answer?
I = 870pie^2a^2f^2
The intensity, I of a sound wave is defined as its power output per unit area an...
Questions
Computers and Technology, 17.02.2020 19:43
Social Studies, 17.02.2020 19:44
Mathematics, 17.02.2020 19:44
Mathematics, 17.02.2020 19:45
History, 17.02.2020 19:45
Mathematics, 17.02.2020 19:46
Mathematics, 17.02.2020 19:46
