Question
What is the length of the pipe?
Answer:
(a) 0.52m
(b) f2=640 Hz and f3=960 Hz
(c) 352.9 Hz
Explanation:
For an open pipe, the velocity is given by
Making L the subject then
Where f is the frequency, L is the length, n is harmonic number, v is velocity
Substituting 1 for n, 320 Hz for f and 331 m/s for v then
(b)
The next two harmonics is given by
f2=2fi
f3=3fi
f2=3*320=640 Hz
f3=3*320=960 Hz
Alternatively, and
(c)
When v=367 m/s then
Answer:
Explanation:
From the conservation of mechanical energy
Solve to velocity v2
Answer:
it can be calculated by measuring the final distance away from a point, and then subtracting the initial distance
Answer:
a)
b)
c)
Explanation:
Given masses:
Velocity of mass 1,
Velocity of mass 2,
a)
Initial momentum:
b)
magnitude of initial momentum:
From the conservation of momentum:
is the magnitude of final velocity.
Direction of final velocity will be in the direction of momentum:
c)
Vertical component of final velocity:
Answer:
(A) Visible
Explanation:
- The section of the electromagnetic spectrum that humans can generally see is called visible light.
White light is visible light and the range of visible wavelengths ranges from 400 - 700 nanometers.