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3 years ago

List three limitations of human space travel

2 answers:

4 0

One of the biggest problem is radiation. Once you get out if the earth's magnetic field you have your astronauts exposed to solar radiation.
Even sending a team to mars is not possible because the radiation would almost certainly kill them. Until some way is figured out to shield the astronauts from the sun's radiation and other cosmic radiation we are pretty much stuck.

Vika [28.1K]3 years ago

3 0

another limitation is the span of the human life. assuming that you want to go outside of the solar system, it is much too far to travel for a human.
in addition there is the speed limitation. of course, Einstein predicts that in order to travel at the speed of light, the substance must have no mass. therefore, it is impossible for a human - let alone a spaceship - to travel at that speed, crushing our dreams of interstellar travel (in a human lifespan).

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Indicate the compartment (A or B) that will increase in volume for each of the following pairs of solutions separated by a semi-

avanturin [10]

Based on the concentration of the solutions, the increase in volume is as follows:

the volume of the 20% (m/v) starch increases
the volume of the 10% (m/v) albumin increases
the volume of the 5% (m/v) sucrose increases

<h3>What is osmosis?</h3>

Osmosis is the movement of water molecules from a region of low solute concentration to a region of high solute concentration through a semipermeable membrane.

The movement of water molecules in the solution pairs is as follows:

the volume of the 20% (m/v) starch increases because water moves in from the 10% (m/v) starch solution.
the volume of the 10% (m/v) albumin increases because water moves in from the 2% (m/v) albumin
the volume of the 5% (m/v) sucrose increases because water moves in from the 0.5% (m/v) sucrose.

Therefore, the increase in volume depends on the concentration ofvthe solutions.

Learn more about osmosis at: brainly.com/question/2625460

4 0

2 years ago

Thx please help thx thx

Alisiya [41]

This force is opposing in nature .it resists object velocity .

5 0

3 years ago

If the lab technician needs 30 liters of a 25% acid solution, how many liters of the 10% and the 30% acid solutions should she m

Mice21 [21]

Answer:

7.5 L of the 10% and 22.5 L of the 30% acid solution, she should mix.

Explanation:

Let the volume of 10% acid solution used to make the mixture = x L

So, the volume of 30% acid solution used to make the mixture = y L

Total volume of the mixture = x + y = 30 L .................. (1)

For 10% acid solution:

C₁ = 10% , V₁ = x L

For 30% acid solution :

C₂ = 30% , V₂ = y L

For the resultant solution of sulfuric acid:

C₃ = 25% , V₃ = 30 L

Using

C₁V₁ + C₂V₂ = C₃V₃

10×x + 30×y = 25×30

So,

x + 3y = 75 .................. (2)

Solving 1 and 2 we get,

x = 7.5 L

y = 22.5 L

6 0

3 years ago

The equation below represents a double replacement/displacement reaction;

Naddik [55]

AB+XY->AY+XB
We know that the answer would be KCl because of the switching that takes place during a double displacement reaction. Just like Zn and MnO4 switched and combined, the remaining elements, K and Cl, will combine.
We know that the answer is simply KCl because both K and Cl have an ion of only +/-1, meaning when they cross, no suffixes are made, since their ions are only 1.
For example, if you combined Mg with Cl, you would get MgCl2, because Mg has an ion of +2.
I hope this helps!

4 0

3 years ago

Cl2 + 2OH− → Cl− + ClO− + H2O

Nataly_w [17]

Cl2(g) -------> Cl-(aq) + ClO-(aq)

2e- + Cl2(g) -------> 2Cl-(aq) [reduction]

4OH-(aq) + Cl2(g) -----------> 2ClO-(aq) + 2H2O(l) + 2e- [oxidation]
______________________________________...
2OH-(aq) + Cl2(g) --------> Cl-(aq) + ClO-(aq) + H2O(l)

4 0

3 years ago