1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Dima020 [189]
3 years ago
14

The primary reason professional observatories are built on the highest mountaintops is to (a) get away from city lights; (b) be

above the rain clouds; (c) reduce atmospheric blurring; (d) improve chromatic aberration.
Physics
1 answer:
EastWind [94]3 years ago
7 0

Answer:

(c) reduce atmospheric blurring

Explanation:

Observatories are the locations used to study the celestial events, climate, astronomy etc. As the observations are made with the radio and visible light of the electromagnetic radiations. So in order to have the clear view, observatories are made at higher places far from population, in the dark areas  having clear air, where they can clearly observe the sky. Atmospheric blurring is caused by the atmospheric turbulence. That cause the light coming from the stars to get slightly refracted thus effecting the results of the telescopes. In order to overcome it observatories are made at specific places like on the highest mountaintops.

You might be interested in
The story of space exploration began with unmanned exploration, moved into a period of manned exploration, and now appears
slega [8]

Answer:

1) D. appears to be moving back toward unmanned exploration in the form of deep-space satellite exploration.

2) D. Mars

3) C. other planets and moons in the solar system and beyond

4) A. lifeforms

5) A. coping with the extreme atmospheres

8 0
4 years ago
A 0.250 kgkg toy is undergoing SHM on the end of a horizontal spring with force constant 300 N/mN/m. When the toy is 0.0120 mm f
konstantin123 [22]

Answer:

(a) The total energy of the object at any point in its motion is 0.0416 J

(b) The amplitude of the motion is 0.0167 m

(c) The maximum speed attained by the object during its motion is 0.577 m/s

Explanation:

Given;

mass of the toy, m = 0.25 kg

force constant of the spring, k = 300 N/m

displacement of the toy, x = 0.012 m

speed of the toy, v = 0.4 m/s

(a) The total energy of the object at any point in its motion

E = ¹/₂mv² + ¹/₂kx²

E = ¹/₂ (0.25)(0.4)² + ¹/₂ (300)(0.012)²

E = 0.0416 J

(b) the amplitude of the motion

E = ¹/₂KA²

A = \sqrt{\frac{2E}{K} } \\\\A = \sqrt{\frac{2*0.0416}{300} } \\\\A = 0.0167 \ m

(c) the maximum speed attained by the object during its motion

E = \frac{1}{2} mv_{max}^2\\\\v_{max} = \sqrt{\frac{2E}{m} } \\\\v_{max} = \sqrt{\frac{2*0.0416}{0.25} } \\\\v_{max} = 0.577 \ m/s

8 0
4 years ago
If an airplane is moving at a constant speed of 500 miles per hour in a straight line is it accelerating?
Zinaida [17]

No. It’s moving at a constant speed (speed is not changing) in a straight line (same direction so velocity is not changing) so it is not accelerating. Acceleration only occurs if there’s a change in speed/velocity.

4 0
4 years ago
Read 2 more answers
Suppose that the speed of yellow visible light in a certain transparent medium is 2.01* 105 km/s. What, approximately, is the in
True [87]

Answer:

1.50

Explanation:

Index of refraction:

n=\frac{c}{v} where n is the refractive index, c is the speed of light in vacuum and v is the speed of light in medium.

The speed of light in vacuum is 3.00 \times 10^5 \text{km/s}

Speed of light in medium is 2.01 \times 10^5 \text{km/s}

Thus,

n=\frac{3.00\times 10^5}{2.01\times 10^5}

n=1.50

Index of refraction of this substance through yellow light is 1.50

4 0
3 years ago
Please Help!
loris [4]
There is a net force of 15N in The direction of Levi
6 0
3 years ago
Read 2 more answers
Other questions:
  • Sam's bike tire contains 15 units of air particles and has a volume of 160mL. Under these conditions the pressure reads 13 psi.
    13·1 answer
  • You are traveling in a convertible with the top down. The car is moving at a constant velocity 28.9 m/s, due east along flat gro
    15·1 answer
  • With a doctor’s permission, how many servings of the product could a person eat before reaching 100 percent of their allowable d
    13·1 answer
  • A landform that has high elevation and a more or less level surface is a
    5·1 answer
  • Your policy says you have 50/100/30 coverage.
    12·1 answer
  • A researcher measured the absorbance and percent transmittance of a blue dye at wavelengths between 425 and 700 nmnm. The measur
    7·1 answer
  • Say you have two parallel current-carrying wires, each carrying a current of 1.0 A and with a distance of 1.0 m between them. Wh
    11·1 answer
  • Two objects that are not initially in thermal equilibrium are placed in close contact. After a while, the temperature of the cod
    9·1 answer
  • Do all metals stick to magnets? Give an example. I NEED HELP FASTT
    5·1 answer
  • A ball is dropped from the top of an 80 m high building. How long will it take
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!