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Evgesh-ka [11]
3 years ago
6

The net effect of each cycle of the sodium-potassium pump is to ____.? ?decrease the number of positively charged ions within th

e cell ?increase the number of positively charged ions within the cell ?decrease the number of positively charged ions outside the cell ?increase the number of negatively charged ions within the cell
Physics
1 answer:
stealth61 [152]3 years ago
3 0
The correct answer may be A
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Engineers and science fiction writers have proposed designing space stations in the shape of a rotating wheel or ring, which wou
Mariulka [41]

Answer:

w = 1.976 rpm

Explanation:

For simulate the gravity we will use the centripetal aceleration a_c, so:

a_c = w^2r

where w is the angular aceleration and r the radius.

We know by the question that:

r = 60.5m

a_c = 2.6m/s2

So, Replacing the data, and solving for w, we get:

2.6m/s = w^2(60.5m)

W = 0.207 rad/s

Finally we change the angular velocity from rad/s to rpm as:

W = 0.207 rad/s = 0.207*60/(2\pi)= 1.976 rpm

3 0
3 years ago
For an object to be classified as a ____, it must meet certain definite criteria: It must be massive enough to pull itself into
Orlov [11]

Answer:

a planet

Explanation:

a planet is one which exerts these properties and therefore is the answer

5 0
3 years ago
Individuals with favorable traits are ________ in an environment
77julia77 [94]
Succesful is correct.
6 0
3 years ago
A carrot hangs from the ceiling by a rope,
valentina_108 [34]

Answer: Diagram B

Explanation:

A free body diagram shows the forces acting on an object in a certain scenario.

In this scenario there are two forces acting on the carrot: the Tension force (Ft) from the rope that the carrot is hanging from and Gravitational force(Fg) which is pulling the carrot to the Earth.

The diagram depicting this is diagram B.

7 0
3 years ago
Read 2 more answers
Can classical physics be used to accurately describe a satellite moving at a speed of 7500 m/s? explain why or why not.
gogolik [260]

The classical physics works on the Newton's laws of motion. It is applicable on heavenly bodies which are governed by the gravitational force. On the other hand, Quantum Physics is applicable for very low mass and sized bodies like electron, protons etc. The classical physics would accurately describe the motion of satellite moving with speed 7500 m/s using the following formula:

r=\frac {GM}{v^{2}}

where G is the gravitational constant, M is the mass of the planet and v is the orbital speed. Then radius of the orbit can be described by this formula.

3 0
3 years ago
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