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STatiana [176]
3 years ago
8

Find the escape velocity ve for an object of mass m that is initially at a distance r from the center of a planet of mass m. ass

ume that r≥rplanet, the radius of the planet, and ignore air resistance.
Physics
1 answer:
skelet666 [1.2K]3 years ago
4 0
We are given
m = mass of the object
r = distance from the center of the planet
r <span>≥ rplanet

We are asked for the
ve = escape velocity

The escape velocity
ve = </span>√ (2Gm/r)
<span>
</span>
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Answer:

C. <u>Trans-membrane protein channels that are always open to allow K+ to cross the membrane without the additional input of energy</u>

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As we know that K+ leakage channels indicate the Potassium leakage channel. The best characterizes about K+ leakage channels is that there is a Trans-membrane protein channel which is always open to allow K+ to cross the membrane without the additional input of energy.

Actually when a cell dies its membrane potential gets more positive and finally reaches zero .

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The membrane permeability of K+ is much  higher than the membrane permeability of Na+.

Therefore, the correct choice is option (C).

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2 years ago
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scoundrel [369]

Answer:

The answer you have selected is correct.

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6 0
3 years ago
A car travels 200km in 3.0 hours. Determine the average velocity of the car
Masja [62]

Answer:

<h2>66.67 km/hr</h2>

Explanation:

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We have the final answer as

<h3>66.67 km/hr</h3>

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