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telo118 [61]
2 years ago
15

Group 2 and Group 3 stars represent which stages of development? Describe these groups in terms of their relative age, size, bri

ghtness, and temperature.
Physics
1 answer:
gladu [14]2 years ago
8 0

Answer:

it represents group 2 and also it represents the group 3 stars

Explanation:

because i just took it and got it correct.

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Which feature of a heating curve indicates a change of state?
Andreas93 [3]
A "heating curve" is a graph that shows the temperature of the substance
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For most of the graph, as you'd expect, the temperature goes up as you
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3 years ago
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An 75-kg hiker climbs to the summit of Mount Mitchell in western North Carolina. During one 2.0-h period, the climber's vertical
Ostrovityanka [42]

Answer:

The change in gravitational potential energy of the climber-Earth system is  \Delta  PE  = 396900 \ J

Explanation:

From the question we are told that

    The mass of the hiker is  m = 75 \ kg

    The time  taken is  T  =  2 \ hr =  2 *  3600 =  7200 \ s

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The  change  in gravitational potential is  mathematically represented as

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here g is the acceleration due to gravity with value  g =  9.8 \ m/s^2  

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        \Delta  PE  =  75  *  9.8  *  540

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3 0
3 years ago
North America experienced all of the following during the last glacial period EXCEPT alpine glaciers covered the Rocky and Casca
Juli2301 [7.4K]

Answer:

the Hudson Bay was covered with alpine glaciers

Explanation:

During the last glacial period, large portions of North America were covered with ice. The majority of the ice was from the ice sheets that were covering Canada and the northern part of the United States, and the alpine glaciers on the mountain ranges. Hudson Bay was all frozen at this point of time. It was not covered with alpine glaciers though, instead it was covered with the ice of the extended ice sheets, with the ice cover reaching up to 2 km in thickness.

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4 0
2 years ago
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The correct answer is Latent. Latent heat provides energy for thunderstorms and hurricanes. Hurricanes are a low pressure that is formed in warm oceans and the source of this energy is water vapor. Water vapor serves to be the food to the hurricanes because they release the latent heat of condensation.
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