<h2>Answers:</h2><h2 /><h2>a) Arrow B</h2><h2>b) Arrow E</h2>
Explanation:
Refraction is a phenomenon in which a wave (the light in this case) bends or changes its direction <u>when passing through a medium with a refractive index different from the other medium.</u> Where the Refractive index is a number that describes how fast light propagates through a medium or material.
According to this, if we observe the rays A an D passing throgh the biconcave lens, we will have two mediums:
1) The air
2)The material of the biconcave lens
This two mediums have different refractive indexes, hence the rays will change the direction.
-For the incident ray A, the corresponding refractive ray is B, because is the ray that bends after passing throgh the lens
-For the incident ray D, the refracted ray is E following the same principle.
Answer:
which principle prevents a brach from abusing its power
Explanation:
You have to find interia using I=mr^2.
m=75+10
radius = 11
Then you have to substitute in first formula above to find the angular speed.
14020=(75+10)x v x 11
v= 14020/ (85x11) = 15m/s
To find linear speed, use V=wr.
Equation: V = 11*1.363 = 15m/s = 33.6mi/hr
Hope this helps! :)
B..Solid Opaque objects absorb, scatter, or reflect light.
To solve this problem we will find the net speed, through the two components given. The vertical component will be found through the energy conservation theorem. Finally with speed we will find the momentum as a function of mass and speed. Given the weight we will divide it by the acceleration to find that mass.
The x component is given as
For conservation of energy the vertical component of velocity would be
Here,
m = Mass
g = Gravitational acceleration
h = Height
Replacing we have that the vertical velocity is
The magnitude of this velocity would be
Finally the momentum of the bale would be
Therefore the momentum of the bale the moment it strikes the ground is 
