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pantera1 [17]
3 years ago
10

1. Basaltic lava flows (those referred to as low viscosity flows) can travel 1-10 km/hr (0.6- 6 mi/hr) depending on the steepnes

s of the slope of the land. Hawai'ian neighborhoods have been covered by lavas (or threatened to be covered by lava) that erupted from the Pu'u O'o vent. The vent was only 15 km (9.3 mi) from the town of Kalapana and 20 km (12.6 mi) from the town of Pahoa. Given the lava flow rates, how much time would civil defense officials (the people who decide if evacuations are necessary) have to evacuate a town if the lava flows were moving at 10 km/hr? (note 1 mi = 1.6 km)?
Geography
1 answer:
Katarina [22]3 years ago
5 0

Answer:

The time will be "2 hours".

Explanation:

Around 10 km/hr, lava eruptions were travelling. The vents was just 15 km (9.3 mi) away Kalapana city as well as 20 km (12.6 mi) from Pahoa city.  

So, we therefore need add the method, which would be: to taking out another time that civil defense officials just had to assess a city.

⇒  Time = \frac{Total \ distance}{Flow \ rate \ of \ lava}

Thus, to measure the time spent throughout the community of Kalapana,

⇒  Time=\frac{15}{10}

              =1.5 \ hours

The civil defense officers provide 1.5 hours of time each assess the city of Kalapana.  

In order to measure the time spent in the towns of Pahoa,

⇒  Time = \frac{20}{10}

              =2 \ hours

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Which of the following statements about uniformitarianism is correct?
solong [7]

Answer:

a. geological processes occurring today have always occurred in the past

Explanation:

The theory of uniformitarianism is a theory that suggests that the changes in the crust of the Earth have been the result of geological activities that have been continuous and uniform processes. This theory doesn't really have big following in the present, though it has been much more popular in the past. The reason for that is that there have been numerous evidence that the changes in Earth's crust have not been created constantly by the same processes throughout the whole geological past. The supporters of this theory still stay strong on their beliefs though despite the evidence, and they offer other ''evidence'' that support their opinion.

8 0
3 years ago
The measures of 2 angles are (2x+2) to the zeroth power and (3x-5) to the zeroth power.
Fantom [35]
First of, what you are referring to zeroth power is not that, actually. It is the symbol for degrees.

If the angles are complementary it means they add up to 90 degrees.

Therefore  (2x+2) + (3x-5) = 90
                2x + 3x +2 -5 = 90
                           5x - 3 = 90
                                   5x = 90+3.
                                    5x = 93.    Divide both sides by 5.
                                       x = 93/5 = 18.6

Therefore:  (2x+2) = (2*18.6+2) = 37.2 + 2 = 39.2  degrees.
                (3x- 5) = (3*18.6-3) = 55.8 - 3 =  52.8  degrees.
So the measure of the smaller anger is 39.2 degrees.
Cheers.
4 0
3 years ago
Pioneers farmers settling the grasslands of the American West often built houses of sod, while early settlers of the eastern for
diamong [38]

Answer:

The building materials are influenced by local resources.

Explanation:

The farmers built structure based on the material obtainable in their area.Farmers having forest in their region built with wood obtained in that region,whereas those in the grassland used sod to build houses.

8 0
3 years ago
Mt. redoubt’s seismic activity is due to the interaction of which two tectonic plates
frosja888 [35]

Answer:

Correct answer is: Due to interaction between Pacific and North American plate.

Explanation:

Mountain Redoubt is located in south Alaska. Mentioned mountain is in the vicinity of convergent plate boundary between North American and Pacific plate.

Convergent boundary means that those plates are <em>colliding</em>. One plate always slides beneath another, and in this case Pacific plate slides beneath North American. Area of collision is known as subduction zone.

Pacific plate is oceanic plate, and North American is continental plate. Oceanic plates <u>always slides</u> beneath continental ones. Reason for that is due to their density. Oceanic plates are denser, so they go under continental ones.

Pacific and North American plate interaction is typicall oceanic-continetal boundary where <em>earthquakes</em> (seismic activity) and <em>active volcanoes</em> are common. Some of the strongest earthquakes happened in this area. That was in 1964 in Prince William Sound in the south coast of Alaska. Magnitude was 9.2M, second strongest quake ever recorded in world's history.

4 0
3 years ago
What's the capital of greece?​
jeyben [28]

Answer:

Athens

Explanation:

Athens is the capital of greece.

Hope this helps,

plx give brainliest

4 0
3 years ago
Read 2 more answers
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