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2 years ago

The acceleration due to gravity on the earths surface is?

Physics

2 answers:

Gennadij [26K]2 years ago

8 0

Acceleration due to gravity depends directly on the mass of Earth and inversely to the square of radius of Earth.

marta [7]2 years ago

8 0

Answer:

9.8 m/s2

Explanation:

Acceleration due to gravity is the acceleration gained by an object due to the gravitational force. Its SI unit is m/s 2. It has both magnitude and direction, hence, it’s a vector quantity. Acceleration due to gravity is represented by g. The standard value of g on the surface of the earth at sea level is 9.8 m/s2.

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How does the law of conservation of energy apply to machines?

trasher [3.6K]

The answer is letter C

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3 years ago

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A particular spiral galaxy can be approximated by a thin disk-like volume 62 Thousand Light Years in radius and 7 Hundred Light

SVETLANKA909090 [29]

Answer:

Approximate linear dimension is 2 light years.

Explanation:

Radius of the spiral galaxy r = 62000 LY

Thickness of the galaxy h = 700 LY

Volume of the galaxy = πr²h

= (3.14)(62000)²(700)

= (3.14)(62)²(7)(10)⁸

= 84568×10⁸

= $8.45\times 10^{12}$ (LY)³

Since galaxy contains number of stars = 1078 billion stars ≈ $1.078\times 10^{12}$

Now volume covered by each star of the galaxy = $\frac{\text{Total volume of the galaxy}}{\text{Number of stars}}$

= $\frac{8.45\times 10^{12} }{1.078\times 10^{12}}$

= 7.839 Light Years

Now the linear dimension across the volume

= $(\text{Average volume per star})^{\frac{1}{3}}$

= $(7.839)^{\frac{1}{3}}$

= 1.99 LY

≈ 2 Light Years

Therefore, approximate linear dimension is 2 light years.

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2 years ago

How is copyright infringement similar to plagiarism

Hoochie [10]

Answer:

Copyright infringement is using someone else's work without their permission amd plagiarism is claiming someone else's work as one's own

Explanation:

hope this helped you

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3 years ago

What makes lava more thick and viscous

12345 [234]

An element called Silica.

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3 years ago

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The intensity of electromagnetic radiation from the sun reaching the earth's upper atmosphere is 1.37kW/m2kW/m2. Part A Assuming

Juli2301 [7.4K]

Answer:

#_photon = 7 10²¹ photons

Explanation:

Let's look for the power that affects the panel of area of 1.5 m2

I = P / A

P = I A

P = 1.37 10³ 1.5

P = 2,055 10³ W

P = E / t

If we use t = 1 s

E = P t

E = 2,055 10³ J

This is the power that the panel receives, let's look for the energy of a photon

E = h f

c = λ f

f = c /λ

E = h c /λ

Let's calculate

E₀ = 6.63 10⁻³⁴ 3 10⁸/680 10⁻⁹

E₀ = 2.925 10⁻¹⁹ J

In one second the total energy is the number of photons for the energy of each one

E = #_photon E₀

#_photon = E / E₀

#_photon = 2,055 10³ / 2,925 10⁻¹⁹

#_photon = 7 10²¹ photons

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3 years ago

The acceleration due to gravity on the earths surface is?​

The acceleration due to gravity on the earths surface is?