Answer:
B. 10.2 m/s
Explanation:
Centripetal acceleration is:
a = v² / r
Given a = 15 m/s² and r = 7 m:
15 m/s² = v² / (7 m)
v = 10.2 m/s
A an observation hehdhhdhdhdhdhhdhdhdhdhdb
The pictures are not attached, therefore, I cannot give a specific choice.
However, I will try to help you out.
The angle of incidence is defined as the angle formed between the ray of light and the normal to the surface that the ray is falling on.
The angle of incidence can be shown in the attached image.
Therefore, for your question, choose the image on which the above description applies.
Hope this helps :)
Answer:
False
Explanation:
Though fiber active cable is based on the concept of internal reflection but it is achieved by refractive index which transmit data through fast traveling pulses of light. It has a layer of glass and insulating casing called “cladding,”and this is is wrapped around the central fiber thereby causing light to continuously bounce back from the walls of the Cable.