Answer:
Laws are statements about something that's been observed and stated while a theory is an explanation of what's been observed. This connection between them forms a main idea that many people regulate as "what's normal."
Explanation:
Answer:
![v = 0.305 m/s](https://tex.z-dn.net/?f=v%20%3D%200.305%20m%2Fs)
Explanation:
As we know that diameter of hand crank is given as
![D_1 = 0.4 m](https://tex.z-dn.net/?f=D_1%20%3D%200.4%20m)
Also the diameter of the shaft on which the rope is wound is given as
![D_2 = 0.1 m](https://tex.z-dn.net/?f=D_2%20%3D%200.1%20m)
now we know that both are moving with same angular speed
so we will have
![\frac{v_1}{D_1} = \frac{v_2}{D_2}](https://tex.z-dn.net/?f=%5Cfrac%7Bv_1%7D%7BD_1%7D%20%3D%20%5Cfrac%7Bv_2%7D%7BD_2%7D)
so we will have
![\frac{1.22}{0.4} = \frac{v}{0.1}](https://tex.z-dn.net/?f=%5Cfrac%7B1.22%7D%7B0.4%7D%20%3D%20%5Cfrac%7Bv%7D%7B0.1%7D)
![v = 0.305 m/s](https://tex.z-dn.net/?f=v%20%3D%200.305%20m%2Fs)
B. Transverse Wave this is the correct answer
A thing the question doesn't tell us: What direction is Mr. B walking ?
-- If Passenger B is walking West, in the same direction as the moving walkway, then the stationary observer sees him passing by toward the West at 3.5 km/hr.
-- If Passenger B, for some strange reason, is walking BACKWARDS, heading east on the moving walkway, then the stationary observer sees him passing by toward the EAST, at 0.5 Km/hr.
-- We're wondering why the question ever introduced us to Passenger-A. He never figures into the question in any way. He has no effect on Passenger-B, and we never hear from him again.