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2 years ago

What is the relationship between mapping and geographical data

1 answer:

5 0

Answer: GIS connects data to a map, integrating location data where things are with all types of descriptive information what things are like there. This provides a foundation for mapping and analysis that is used in science and almost every industry.

Explanation: hope it helps :)

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Imagine that you have obtained spectra for several galaxies and have measured the observed wavelength of a hydrogen emission lin

Lerok [7]

Answer:

A. z (galaxy 1) = -0.00515, z (galaxy 2) = -0.01707, z (galaxy 3) = -0.04008

B. v (galaxy 1) = -0.00517c, v (galaxy 2) = -0.01707c, v (galaxy 3) = -0.0401c

C. d (galaxy 1) = -21 Mpc,d (galaxy 2) = -69.4 Mpc, d (galaxy 3) = -163 Mpc

Explanation:

We begin by listing out the parameters we were given:

λ (obsv) = 656.3 nm, λ (emit 1) = 659.7 nm, λ (emit 2) = 667.7 nm,

λ (emit 3) = 683.7 nm

A) Using the Redshift formula, we have:

z = [λ (obsv) - λ (emit)] ÷ λ (emit)

For galaxy 1:

z = [λ (obsv) - λ (emit 1)] ÷ λ (emit 1)

z = (656.3 - 659.7) ÷ 659.7 = -0.00515

z = -0.00515

For galaxy 2:

z = [λ (obsv) - λ (emit 2)] ÷ λ (emit 2)

z = (656.3 - 667.7) ÷ 667.7 = -0.01707

z = -0.01707

For galaxy 3:

z = [λ (obsv) - λ (emit 3)] ÷ λ (emit 3)

z = (656.3 - 683.7) ÷ 683.7 = -0.04008

z = -0.04008

B) Using the Doppler formula, we have:

(Δλ ÷ λ) = v ÷ c

v = c * (Δλ ÷ λ)

but, z = (Δλ ÷ λ)

⇒ v = c * z

speed of light (c) = 3 x $10^{8}$ m/s

For galaxy 1:

v = c * z

Substitute z into the equation calculated from A) above

v = 3 x $10^{8}$ * (-0.00515)

v = -1.55 x $10^{6}$ m/s

v = -0.00517c

For galaxy 2:

v = c * z

Substitute z into the equation calculated from A) above

v = 3 x $10^{8}$ * (-0.01707)

v = -5.12 x $10^{6}$ m/s

v = -0.01707c

For galaxy 3:

v = c * z

Substitute z into the equation calculated from A) above

v = 3 x $10^{8}$ * (-0.04008)

v = -12.03 x $10^{6}$ m/s

v = -0.0401c

N.B: the negative value of velocity connotes that the galaxies are moving away from us (not towards us)

C) Using Hubbleʹs law, we have:

v = H · d

where:

v = velocity of a galaxy (km/s), d = distance (Mpc),

H = Hubble's constant (km/s/Mpc) = 73.8 km/sec

d = v ÷ H

We use the velocities calculated in B) above

For galaxy 1:

v = -1.55 x $10^{3}$ km/s

d = -1.55 x $10^{3}$ ÷ 73.8

d = -21 Mpc

For galaxy 2:

v = -5.12 x $10^{3}$ km/s

d = -5.12 x $10^{3}$ ÷ 73.8

d = -69.4 Mpc

For galaxy 3:

v = -12.03 x $10^{3}$ km/s

d = -12.03 x $10^{3}$ ÷ 73.8

d = -163 Mpc

N.B: distance cannot be a negative value

4 0

3 years ago

What year is it currently on the Aymaran calendar

denpristay [2]

According to the Aymaran calendar it is the year of 5,528.

Explanation:

There are lot of calendars around the world, some being widely used, some less, some only locally, and some can be considered as abandoned from one reason or another. One type of calendar that is used locally is the Aymaran calendar. This calendar is practiced only in parts of Bolivia, southern Peru, and northern Chile.

The Aymaran calendar is actually one of the oldest that is still in use. While the majority of the world has just celebrated the year of 2,020 according to the Gregorian calendar, the Aymaran is way upfront of it. According to this ancient calendar it is the year of 5,528, meaning that this calendar started off in the year of 3,508 BC. Despite the backlash of the Catholic Church in order to ban this calendar and the celebrations related to it, the people still manage to stand strong and keep their traditions alive.

6 0

3 years ago

Answer the following :

zhuklara [117]

Explanation:

1.The definition of “sustainability” is the study of how natural systems function, remain diverse and produce everything it needs for the ecology to remain in balance

2.Dubai

3.the United Arab Emirates (UAE), long plighted by extreme climate conditions and vast resource consumption, there is a new type of city cropping up amidst the sand dunes. These meticulously–and expensively–designed “sustainable cities” are touted as models for green development: examples of how, in an inhospitable environment, humans can live with minimal impact on the earth.

3 0

3 years ago

What notable inventions came out of china?

Maksim231197 [3]

Gunpowder,printing,compass. hope this helps

3 0

3 years ago

The Chao Phraya River is considered an artery because __________.

d1i1m1o1n [39]

Hey,

The Chao Phraya River is considered an artery because it is used to transport people and goods.

Hope it helps u

3 0

4 years ago