1200
-------=171 miles per hour
7
Answer:
Charge enter a 0.100 mm length of the axon is
Explanation:
Electric field E at a point due to a point charge is given by
where is the constant =
is the magnitude of point charge and is the distance from the point charge
Charges entering one meter of axon is
Charges entering 0.100 mm of axon is
substituting the value of in above equation, we get charge enter a 0.100 mm length of the axon is
Answer:
The wavelength of the 320 Hz sound waves in the column of air is 1070 mm.
Explanation:
To solve the question, we note that the tube acts as a pipe with one end closed and that a stationary wave is formed in the tube from the top, to the bottom of the tube and back.
The simplest and the first wave form in the tube has length L = Lambda/4
That is, a node at the closed end and an antinode at the open end
The second stationary wave is given by
l + 535 mm= 3/4×lambda
However v = f×lambda
f = v/lambda = v/(4l)
Therefore
Lambda/4 + 535 mm = 3/4lambda
Or 535 mm = 3/4lambda -Lambda/4 = lambda/2
Therefore, lambda = 2×535 mm = 1070 mm
The wavelength = 1070 mm