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1 year ago

Which of the following is true of ligand gated sodium ion channels neurons?

1 answer:

6 0

The true statement about ligand gated sodium ion channels in neurons are open in response to chemical messenger and hyperpolarize the membrane.

<h3>What are ligand gated sodium ion channels?</h3>

Ligand gated sodium ion channels are the channels present in the neurons. Ion moves through this channel inside the cell or outside the cell.

Thus, the correct option is a) Open in response to chemical messenger and depolarize the membrane.

Learn more about ligands

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A 113 kg man sits on the stern of a 6.3 m long boat. The prow of the

Usimov [2.4K]

Answer:

m = 105.37 kg

Explanation:

We are given;

Mass of man; m = 113 kg

Length of boat = 6.3m

Now, The position of the center of mass will not change during the motion of the man.

Thus,

X_g,i = X_g,f

So,

[113(6.3) + ma]/(113 + m) = [113(3.26) + m(a +3.26)]/(113 + m)

113 + m will cancel on both sides to give;

113(6.3) + ma = [113(3.26) + m(a +3.26)]

711.9 + ma = 368.38 + ma + 3.26m

ma will cancel out to give;

711.9 - 368.38 = 3.26m

343.52/3.26 = m

m = 105.37 kg

3 0

3 years ago

How far apart (in mm) must two point charges of 90.0 nC (typical of static electricity) be to have a force of 3.80 N between the

Rasek [7]

Answer:

The distance between the two charges is =4.4mm

4 0

3 years ago

How do buildings keep cool in hot climates

Aleksandr [31]

Answer:

buildings are made of stone,bricks or embedded into the ground can feel cooler thanks to the high "thermal mass"of this materials.

6 0

3 years ago

Pls help me solve this<br><br><br><br>

musickatia [10]

Answer:

a) The uniform velocity travelled by the car is 10 meters per second.

(Point b has been erased by the user)

c) The distance travelled by the car with uniform velocity is 100 meters.

Explanation:

a) Calculate the uniform velocity travelled by the car:

The uniform velocity is the final velocity ( $v$ ), in meters per second, of the the uniform accelerated stage:

$v = v_{o} + a\cdot t$ (1)

Where:

$v_{o}$ - Initial velocity, in meters per second.

$a$ - Acceleration, in meters per square second.

$t$ - Time, in seconds.

If we know that $v_{o} = 0\,\frac{m}{s}$ , $a = 2\,\frac{m}{s^{2}}$ and $t = 5\,s$ , then the uniform velocity is:

$v = 0\,\frac{m}{s} + \left(2\,\frac{m}{s^{2}} \right)\cdot (5\,s)$

$v = 10\,\frac{m}{s}$

The uniform velocity travelled by the car is 10 meters per second.

(Point b has been erased by the user)

c) The distance travelled by the car ( $\Delta x$ ), in meters, with uniform velocity is calculated by the following kinematic expression:

$\Delta x = v\cdot t$ (2)

If we know that $v = 10\,\frac{m}{s}$ and $t = 10\,s$ , then the distance travelled is:

$\Delta x = \left(10\,\frac{m}{s} \right)\cdot (10\,s)$

$\Delta x = 100\,m$

The distance travelled by the car with uniform velocity is 100 meters.

4 0

3 years ago

To provide the pulse of energy needed for an intense bass, some car stereo systems add capacitors. One system uses a 1.6FF capac

Hoochie [10]

Answer:

Energy stored at 12 volt will be 115.2 J and energy stored at 24 volt will be 460.8 volt

Explanation:

We have given capacitance of capacitor C = 1.6 F

Normal voltage V = 12 volt

And system uses 2 volt to charge the system

We know that energy stored in the capacitor is equal to $E=\frac{1}{2}CV^2$

So energy stored at 12 volt will be equal to $E=\frac{1}{2}\times 1.6\times 12^2=115.2j$

And energy stored at 24 volt will be equal to $E=\frac{1}{2}\times 1.6\times 24^2=460.8j$

So energy stored at 12 volt will be 115.2 j and energy stored at 24 volt will be 460.8 j

6 0

3 years ago

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