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Elan Coil [88]
3 years ago
11

What happens when a space shuttle reenters the atmosphere?

Biology
2 answers:
STALIN [3.7K]3 years ago
7 0

Answer:

Although it causes drag, it also causes intense heat. Specifically, shuttles face intense temperatures of about 3000 degrees Fahrenheit (about 1649 degrees Celsius) [source: Hammond]. Blunt-body design helps alleviate the heat problem.

Explanation:

Although it causes drag, it also causes intense heat. Specifically, shuttles face intense temperatures of about 3000 degrees Fahrenheit (about 1649 degrees Celsius) [source: Hammond]. Blunt-body design helps alleviate the heat problem.

pantera1 [17]3 years ago
6 0

Answer:

Atmospheric entry is the movement of an object from outer space into and through the gases of ... For Earth, atmospheric entry occurs by convention at the Kármán line at an ... When atmospheric entry is part of a spacecraft landing or recovery, ... of a spacecraft that is travelling at hypersonic speed as it enters an atmosphere ...

Explanation:

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Metabolic rate is _____.
zheka24 [161]

Answer: Metabolic rate is the total amount of energy an animal uses in a unit of time

Explanation:

Hi, metabolic rate is the total amount of energy an animal uses in a unit of time.

It refers to how quickly fuels are consumed to keep the organism’s cells functioning.

Its unit of measure can be Joules, calories or kilocalories per unit of time.

Metabolic rate is proportional to the activity level. The More active the animals is , the higher the metabolic rate is.  

Feel free to ask for more if needed or if you did not understand something.

3 0
3 years ago
Air pollution ____
Flauer [41]
Can cause acid rain because the chemicals mix with the water vapor
8 0
3 years ago
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How is it that the same tertiary structure of a protein can result from different primary structures? Select one: a. Any protein
slamgirl [31]

Answer:

I believe that the best answer to the question: How is it that the same tertiary structure of a protein can result from different primary structures? Would be, B: None of the above.

Explanation:

This is probably the best choice from all the ones in the list simply because due to specific portions of the other answers they make the statement incorrect.

It will help to remember this: proteins have primary, secondary and tertiary structures because when they first emerge from the trascription process from mRNA, they are a simple string where the most important factor is the sequence of aminoacids. It is this sequence which will determine the folding factor. However, there is another factor that must always be kept in mind; environmental factors (temperature, medium where the protein is, as well as location where it is being produced) will also play a role on how the folding will happen and on which of the aminoacids.

The evolvement of a protein chain from its primary, to its secondary and then tertiary shape (the only functional, or known as native state) depends on which of the aminoacids in a specific sequence has the necessary elements to form bonds (hydrogen bonds) with others and thus start the folding process.

7 0
3 years ago
What is peristalsis? how does it work in the esophagus?
lana [24]

Answer:

Peristalsis is part of the food digestion process. it's a helpful function we have

Explanation:

4 0
3 years ago
How do the pollutants that cause acid rain get into the air?
Kazeer [188]
For example driving cars, they release nitrogen and sulfur in the water vapor. This causes the water vapor to be more acidic. So then When the precipitation falls back to the Earth it comes down as acid rain. 
7 0
3 years ago
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