Answer:
f(3) = 362.32 Hz
Explanation:
the formula of frequency of open pipe is
f(n) = (n+1)v/2L
n = 0,1,2,3,... (the order)
0 for the first
1 for the second
v = speed of sound
L = the lenght of pipe
f(3) = (2+1) * 343 / 2 * 1,42
f(3) = 3 * 343 / 2.84
f(3) = 362.324 Hz (or you can write 362.32 Hz
The force of a particle moving in a circular motion is:
F=ma
where m is the mass and a is the centripetal acceleration, which is expressed as:
a=v²/r
<span>where v is the speed and r the distance between the particles. You use these equations, by substituting the values given in order to solve the problem.</span>
I think the 3rd one is the answer
Answer:
80
Explanation:
I literally just did this question lol I hope I helped
20 is the atomic number for Calcium.
