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Allisa [31]
3 years ago
8

As altitude increases, atmospheric pressure decreases, which means less oxygen is diffused into the blood from the lungs. for in

stance, at 18,000 feet you would obtain 29% less oxygen than you would at sea level. this can lead to altitude sickness, or hypoxia as it is called. imagine a mountain climber, who lives at sea level, trying to climb mount kilimanjaro for the first time. the climber is very fit so he plans to summit the 19,341 foot peak in four days, though it usually takes first-time climbers five or six days. use your knowledge of equilibrium to predict the climberâs reaction to this speedy climb, and the reaction needed to restore equilibrium.
Physics
2 answers:
Anni [7]3 years ago
8 0

 

I believe this question has the following sub questions:

1. When the climber ascends the mountain before acclimating, ___ to restore homeostasis within the body. <span>
2. As the climber rehydrates and rests at a basecamp, hemoglobin (Hb) is produced, which is the body's response to the stress. As a result, ___ </span>
3. When the climber returns to sea level before reacclimating, ___ to restore homeostasis within the body. 
4. As the climber reacclimates to sea level, hemoglobin is replaced at a lower rate, decreasing hemoglobin concentrations in the blood. As a result, ___

 

The answers on each sub question are:

1) Equilibrium shifts to release O2<span>
<span>2) Equilibrium shifts to formation of HbO2</span>
<span>3) Equilibrium shifts to formation of HbO2</span>
<span>4) Equilibrium shifts to release O2</span></span>

Elina [12.6K]3 years ago
5 0

Question subitems:

1. When the climber ascends the mountain before acclimating, __to restore homeostasis within the body.

2. As the climber rehydrates and rests at a basecamp, hemoglobin (Hb) is produced, which is the body's response to the stress. As a result, __

3. When the climber returns to sea level before reacclimating, __ to restore homeostasis within the body.

4. As the climber reacclimates to sea level, hemoglobin is replaced at a lower rate, decreasing hemoglobin concentrations in the blood. As a result, __

Explanation:

1) The body will try to compensate the concentration of oxygen so the equilibrium will shift to release O2

2) The body will try to restore the ammount of oxygen in blood so it will producec Hb and shift to the production of HbO2

3) The higher oxygen concentration will trend to increase the formation of HbO2

4) To restorre the homeostasis the equilibrium will shift to the release of O2

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An object begins with a speed of 20 meters per second and slows down to a speed of 10 meters per second over a time of 5 seconds
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V = 6 m/s

Explanation:

Given that,

Initial speed of an object is 20 m/s

Final speed of an object is 10 m/s

Time, t = 5 s

We need to find the average speed of the object during these 5 seconds. Let it is equal to V. Here, time is same. The average speed is given by :

V=\dfrac{x+y}{2}\\\\\text{Putting values}\\\\V=\dfrac{20+10}{5}\\\\V=6\ m/s

So, the average speed of the object is 6 m/s.

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If you lived on the Moon, would you see Earth go through phases? If so, would the sequence of phases be the same as those of the
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Explanation:

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When one would view the earth from the moon, the earth would also be visible as going through the phases. The order would be reversed. Understand this with the following example, On a new moon day, the Earth would be visible completely lit from the moon. So it will be full Earth day on the moon. On a full moon day, the lit side of the Earth would be completely away and hence, from the moon, new earth would be there.

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3 years ago
a 2.4*10^2 N force is pulling an 85 kg refrigerator across a horizontal surface. the force acts at an angle of 20.0 above the su
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Answer:

a) The work done by pulling force, W = 1804.21 joules

b) The work done by the kinetic frictional force is, w = 1332.8 J

Explanation:

Given,

The pulling force, Fₐ = 2.4 x 10² newton

The mass of the refrigerator, m = 85 Kg

The angle of pulling force acting to the surface, ∅ = 20°

The coefficient of kinetic friction is, μₓ = 0.200

The distance covered by the refrigerator, s = 8 m

The force acting in the direction parallel to the surface is given by

                                      F = Fₐ cos∅

∴                                     F = 2.4 x 10² x cos 20°

                                         =225.53 N

The work done by the pulling force is given by

                                  W = F · S

                                       = 225.53 N x 8 m

                                       = 1804.21 joules

The work done by the pulling force, W = 1804.21 joules

The kinetic friction force is given by the formula

                                  Fₓ = μₓ · η

Where

                              μₓ - coeficient of kinetic frictoin

                              η - Normal force, (mg)

∴                             Fₓ = 0.200 x 85 x 9.8

                                   =  166.6 N

The work done by the kinetic frictional force is given by

                                 w = Fₓ · S

                                     = 166.6 N x 8 m

                                     = 1332.8 J

Hence, the work done by the kinetic frictional force is, w = 1332.8 J

7 0
3 years ago
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