All categories

4 years ago

What do astronomers mean by light pollution?

Physics

2 answers:

Margarita [4]4 years ago

8 0

Answer:

a. Light pollution refers to light used for human activities that brightens the sky and hinders astronomical observations.

Explanation:

Light pollution is due to the excessive and misdirected use of artificial light. Light bulbs are often design in an incorrect way, since a great part of its light is not completely directed to the ground and an important percentage is emitted to the sky in where will be scattered and reflected back to ground by the particles in the atmosphere. That brings as an effect a sky glow, therefore the visibility of astronomical objects will be extremely reduce.

Hence, professional astronomical research and amateur observations will be affected. Light pollution has a negative impact on bird migration at night and in the health of difference species, humans also.

Triss [41]4 years ago

8 0

Answer:

Explanation:

<em>Letting you Know That The Answer Was Wrong LYK AKA Letting You Know :)</em>

You might be interested in

Raindrops are falling straight down at 11 m/s when suddenly the wind starts blowing horizontally at a brisk 5.0 m/s. From your p

Bumek [7]

Answer: 24.4 degrees to the vertical

Explanation:

Vertical component of raindrop speed = 11m/s

Horizontal component of wind = 5m/s

In this case, all we have to do is to use trigonometric ratios of angles to sides as in a triangle

Doing this, we see that

tan (theta) = 5/11

(Where theta is the angle made with the vertical by the rain after impact)

Tan being opposite/adjacent

Arc sin (5/11) gives us 24.44 degrees to the vertical

8 0

3 years ago

In an inelastic collision involving an isolated system, the final total momentum isA) more than the initial momentum.B) exactly

damaskus [11]

I think that the answer is C

5 0

3 years ago

A circuit was set up as shown in the diagram . The tgree resistors are identical

wolverine [178]

6 / 3 = 2
So the reading on the voltmeter will be 2.

7 0

3 years ago

A person swims to the other end of a 20m long pool and back. What is their displacement?

mafiozo [28]

Answer:

Zero

Explanation:

It is given that,

A person swims to the other end of a 20m long pool and back.

We need to find his displacement.

Displacement = shortest path covered

He reaches at the same position as from where he has started. It means the shortest path covered is equal to 0 i.e. his displacement is zero.

3 0

3 years ago

A car enters the freeway with a speed of 6.4m/s and

Vsevolod [243]

Chicken nuggets , are your answer , eat 20 of them and then start work,

5 0

3 years ago