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Gnoma [55]
3 years ago
11

The first accurate measurement of the size of Earth was made by ___.

Geography
2 answers:
ki77a [65]3 years ago
5 0
Newton not the others they are deities that own something
ioda3 years ago
4 0

The correct answer is Eratosthenes

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How long will it be until North America experiences its next High Tide?
tatyana61 [14]

Answer:

Because the Earth rotates through two tidal “bulges” every lunar day, coastal areas experience two high and two low tides every 24 hours and 50 minutes. High tides occur 12 hours and 25 minutes apart.

6 0
3 years ago
Calculate and compare the albedo temperature of Mars to Venus. Then compare the two albedo temperatures the planet’s albedo temp
Kryger [21]

Answer:

The albedo temperature for Mars and Venus are 210K and 184 K respectively.Mars albedo temperature is closer to its black body temperature such that the Venus has more albedo.Thus there is a chance that Mars would have had life in their history.

Explanation:

The albedo temperature is given as

Te =\left [\dfrac{L(1-a)}{ (16\pi \sigma D^2}\right]^{1/4}

Here

L = Solar luminosity = 3.846*1026 W m-2 K-4

D = distance from Sun

σ = the Stefan-Boltzman constant = 5.6704 * 10-8 W

a is the albedo constant whose value for Mars is  0.250 while for  Venus it is 0.900

So the albedo temperature is given as

Venus: 184 K

Mars: 210 K

The black body temperature is given as

Te =\left [\dfrac{L}{ (16\pi \sigma D^2}\right]^{1/4}

By substitution of the values, the black body temperature for Venus and Mars are as

Venus: 327 K

Mars: 225 K

Mars albedo temperature is closer to its black body temperature such that the Venus has more albedo.

Thus there is a chance that Mars would have had life in their history.

3 0
3 years ago
❗️URGENT❗️
belka [17]

Answer: B. It is inside the Arctic Circle.

Elimination:

Well, first off:

A. is wrong = A zip code does not specify a location, it can also vary depending on how the country presents zip codes

C. is wrong = This is referring to weather and climate, not geographical aspects.

D. is wrong = This doesn't include the altitude of the location, making it a useless coordinate. Additionally, the common person will not have knowledge of how to read latitude/altitude.

3 0
3 years ago
An astronomer has been observing two Cepheid variable stars over the course of a month. Both variable stars have the exact same
Troyanec [42]

Answer:

The luminosity of both the stars is same star A is closer to the planet Earth as compared to star B.

Explanation:

From the mentioned case we can infer that the most accurate relation between the stars and the astronomer on earth observing for over a period is that the luminosity of the stars is same.

The more drawn out the pulsation time frame, the more brilliant the star. The period-luminosity connection for old style Cepheid was found in 1908 by Henrietta Swan Leavitt in an examination of thousands of different stars in the Magellanic Clouds.

8 0
3 years ago
What are the similarities among a lake, wetland, and river?​
alex41 [277]

Answer: they all have bodies and parts of water in them

Explanation:

7 0
3 years ago
Read 2 more answers
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