Answer:
the frequency is the fundamental and distance is L = ¼ λ
Explanation:
This problem is a phenomenon of resonance between the frequency of the tuning fork and the tube with one end open and the other end closed, in this case at the closed end you have a node and the open end a belly, so the wavelength is the basis is
λ = 4 L
In this case L = 19.4 cm = 0.194 m
let's use the relationship between wave speed and wavelength frequency and
v = λ f
where the frequency is f = 440 Hz
v = 4 L f
let's calculate
v = 4 0.194 440
v = 341.44 m / s
so the frequency is the fundamental and distance is
L = ¼ λ
Answer:
5.1 m/s
Explanation:
The figure is missing: find it in attachment.
In order to find the average speed, we have to calculate the length of the total path, and divide it by the total time elapsed.
The curve from A to B is a quarter of a circle with a radius of r = 20 m, so its length is:

The path BC is the hypothenuse of a right triangle with sides equal to 20 m and 30 m, so its length is

Finally, the length of the path AC is the sum of the side of 30 m and the radius of the curve, so

So the total distance covered is

The total time elapsed is

So, the average speed is

Answer:

Explanation:
You need to be careful with units for this problem. The force will be:



Answer:
This is your answer
Explanation:
Actually I took this from go ogle
Answer:
synthesis is correct answer.