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3 years ago

Why is angular resolution important

Physics

1 answer:

Yanka [14]3 years ago

6 0

Answer:

Angular resolution describes the ability of any image-forming device such as an optical or radio telescope, a microscope, a camera, or an eye, to distinguish small details of an object, thereby making it a major determinant of image resolution.

hope it help u make me a brainlist

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A projectile is shot directly away from Earth's surface. Neglect the rotation of the Earth.

Maksim231197 [3]

Answer:

Explanation:

We shall apply law of conservation of mechanical energy for projectile being thrown .

Total energy on the surface = total energy at height h required

a ) At height h , velocity = .351 x ( 2 GM/R x h )

$\frac{-GM}{R} + \frac{m\times(.351\times\sqrt{2GM})^2 }{2R } = \frac{-GMm}{R+h} + 0$

$\frac{-GMm}{R} +\frac{1}{2}\times \frac{-2GMm}{R} \times0.123=\frac{-GMm}{R+h}$

$\frac{0.877GMm}{R} =\frac{-GMm}{R+h}$

h = .14 R

b )

$\frac{-GM}{R} + \frac{m\times(.351\times2GM) }{2R } = \frac{-GMm}{R+h} + 0$

$\frac{-0.649GMm}{R} = \frac{-GMm}{R+h}$

h = .54 R

c ) least initial mechanical energy required at launch if the projectile is to escape Earth

= GMm / R + 1/2 m (2GM/R)

= 0

5 0

3 years ago

In each of the given pairs, choose which element will have the bigger atom. Give reasons for your choice. (a) Mg (atomic number

Dafna1 [17]

Answer:

Mg (atomic number 12)

K (atomic number 19)

Explanation:

The size of an atom is estimated in terms of its atomic radius.

The atomic radius is taken as half of the inter-nuclear distance between two covalently bonded atoms of non-metallic elements or half of the distance (d) between two nuclei in the solid - state of metals.

Across a period, atomic radii decrease progressively from left to right.
This is due to the progressive increase in the nuclear charge without increase in the number of electronic shells.
Down a group, atomic radii increase progressively due to the successive shells of electrons being added which have been compensated for by the increase in nuclear charge.

Cl is further right of Mg in the third period

K is below Na in the first group

3 0

2 years ago

Rachel rides her bike east for 3.0 miles. She then turns around and rides west for 4.8 miles. What is her displacement? 7.8 mile

ryzh [129]

It would be 1.8 miles west

6 0

2 years ago

Read 2 more answers

There are 11 lights in series, and they are in series with 2 lights in parallel. If the 13 lights are identical, which of them w

BlackZzzverrR [31]

<h2>Answer: 2 lights (in parallel)</h2>

Explanation:

When light bulbs are connected in series the total voltage $V_{s}$ will be:

$V_{s}=V_{1}+V_{2}+...+V_{n}$ (1)

This means the <u>total voltage will be distributed among each of the bulbs</u> in series, therefore the luminosity will be also divided among the bulbs.

When lights are connected in parallel the total voltage $V_{p}$ will be:

$V_{p}=V_{1}=V_{2}=...=V_{n}$ (2)

This means the <u>total voltage will be the same for each bulbs</u> in parallel, therefore the luminosity will be the same.

Now, if we combine this two types of connections, as in this problem with 11 lights in series, which are also in series with 2 lights in parallel; the 2 lights in parallel will be brighter than the 11 lights in series.

8 0

3 years ago

What type of scientists identify the sun and stars

Paraphin [41]

Answer:

Astronomers

Explanation:

Astronomy

Field of study

DescriptionAstronomy is a natural science that studies celestial objects and phenomena. It uses mathematics, physics, and chemistry to try and explain their origin and evolution. Objects of interest include planets, moons, stars, nebulae, galaxies, and comets.

https://en.wikipedia.org/wiki/Astronomer

8 0

2 years ago

Read 2 more answers