Answer:
A. Materials with a low index of refraction cause light to refract very little.
Answer:
The main points of difference between a citizen and alien are: (a) A citizen is a permanent resident of a state, while an alien is a temporary resident, who comes for a specific duration of time as a tourist or on diplomatic assignment. ... Aliens do not possess such rights in the state where they reside temporarily
Explanation:
Answer:
The horizontal force is 106.89 N.
Explanation:
Given that,
Work done = 310 J
Distance = 2.9 m
We need to calculate the horizontal force
Using formula of work done

Where, 

Put the value into the formula



Hence, The horizontal force is 106.89 N.
<span>Answer : P = 3527 Pa
Explanation:
Given : height, h = 279 m
and density of air , Ď = 1.29 kg/m3
Change in pressure , P = h*Ď*g
We know that gravity, g = 9.8 m/s2
Therefore P = 279 * 1.29 * 9.8 = 3527 Pa</span>