Answer:
9.8 times 5?
Explanation:
this is a freefall question so i think that is what it is.
Answer:
74 N
Explanation:
T = Tension in the string = 74 N
= Density of the steel = 7800 kg/m³
A = Area = 
r = Radius = 
Linear density is given by
The linear density is 0.0177 kg/m
Velocity is given by
The velocity of the wave on the guitar string is 64.65903 m/s
Answer:
b
Explanation:
i took the quiz i think its right
It is know as smoke because if you cook food smoke will go up in the air and that makes vapor and also water from the ground it suck up
The phenomenon that is observed when an incident ray travelling in a slower medium strikes the boundary of a faster medium with an angle greater than the critical angle is known as total internal reflection.
Total internal reflection results in the the ray being reflected within the medium, instead of leaving it after undergoing diffraction. This phenomenon is the working principle of optical fibers.
