<span>Answer:
sin(incidence)/sin(refraction) = n_refraction/n_incidence
sin(50) / sin(x) = 1.5 / 1
sin(50)/1.5 = sin(x)
sin(x) = 0.511
x = 30.71o
B]
50 degrees, same as the angle going in.
You can show that by reversing the steps in A.
sin(30.7)/sin(x) = 1/1.5
C]
The glass is 5 cm thick.
The reference angle = 30.7o
Tan(30.7) = displacement / thickness
Tan(30.7) = x / 5
5*sin(30.7) = x
x = 2.97 cm which is the displacement.</span>
This statement is
false.
The correct statement would be,
"W<span>hen you approach an
intersection and see a truck ahead signaling a right turn, you should stay
behind the truck,
away from the curbside, until the turn is completed."
Larger vehicles require a larger space to turn, being next to the truck and close to the curbside will only make it more difficult for the truck driver to complete the turn. This in turn will waste more time or even block traffic while the truck driver tries to complete the turn in the difficult situation that could have easily been avoided.</span>
Answer:
B. 2.77 x 
N
Explanation:
The required force can be calculated by:
F = 
Where F is the force between the particles, K is the coulomb's constant (9 x 
), 
is the charge on the first particle, 
is the charge on the second particle and 
is the distance between the particles.
So that:
F = 
= 
= 2.7692 x
The force between the particles is 2.77 x N.
It is the only one that has both a partially molten metallic core and reasonably rapid rotation.
