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2 years ago

Which cells have plasma membranes that undergo voltage changes in response to stimuli?

Physics

1 answer:

ddd [48]2 years ago

5 0

Neuron and muscle cells have plasma membranes that undergo voltage changes in response to stimuli.

<h3>What is a neuron?</h3>

Neurons are messengers of information.

Between various brain regions and between the brain and the rest of the nervous system, information is transmitted using electrical impulses and chemical signals.

A neuron has a cell body that includes a nucleus and cytoplasm, from which long, thin hair-like structures emerge.

The axon, a solitary long component of the neuron, is responsible for carrying the nerve impulse to various body areas.

The dendrites are the neuron's small, branching body sections.

To learn more about neurons, refer

brainly.com/question/11538106

#SPJ4

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A car is traveling at a constant velocity of magnitude v0 when the driver notices a garbage can on the road in front of him. at

slava [35]

Total distance travelled by the car is 'd'
distance trveled before the brakes were applied = v_o * t 
distance travld with brakes = d - v_o*t 
applying the formula: v^2 - u^2 = -2 a * s 
=> 0 - v_o^2 = -2 * a_x * (d- v_o*t) 
=> a_x = (v_o^2)/ ( 2 (d-v_o*t)

7 0

3 years ago

Read 2 more answers

A truck covers 40.0 m in 7.45 s while uniformly slowing down to a final velocity of 3.50 m/s.

astra-53 [7]

Answer:

(A) Original velocity will be 7.244 m /sec

(B) Acceleration will be $-0.5026m/sec^2$

Explanation:

We have given distance covers by truck s = 40 m

Time taken by truck to cover this distance t = 7.45 sec

Final velocity v = 3.50 sec

According to second equation of motion

$S=ut+\frac{1}{2}at^2$

$40=u\times 7.45+\frac{1}{2}\times a\times 7.45^2$

$7.45u+27.751a=40$ -----eqn 1

According to first equation of motion

v = u + at

So $3.5=u+7.45a$ -----eqn2

Solving equation 1 and 2

a = $-0.5026m/sec^2$

And u = 7.244 m /sec

(A) Original velocity will be 7.244 m /sec

(B) Acceleration will be

$-0.5026m/sec^2$

6 0

4 years ago

4. Brian stands at the edge of a cliff and throws a stone horizontally over the edge with a

Verdich [7]

Answer:A).3.16 s B).56.92

A).12.5m/s

B).7.81m

Explanation:

5 0

4 years ago

A 6.9-kg wheel with geometric radius m has radius of gyration computed about its mass center given by m. A massless bar at angle

Vilka [71]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The value is $\alpha =2.538 \ rad/s^2$

Explanation:

From the question we are told that

The mass of the wheel is m = 6.9 kg

The radius is $r = 0.69 \ m$

The radius of gyration is $k_G = 0.4\ m$

The angle is $\theta = 47^o$

The force which the massless bar is subjected to $F = 22.5 \ N$

Generally given that the wheels rolls without slipping on the flat stationary ground surface, it implies that point A is the center of rotation.

Generally the moment of inertia about A is mathematically represented as

$I_a = I_G + M* r^2$

Here $I_G$ is the moment of inertia about G with respect to the radius of gyration which is mathematically represented as

$I_G = M * k_G$

=> $I_a = k_G* M + M* r^2$

=> $I_a =0.4 * 6.9 + 6.9 * 0.69^2$

=> $I_a =6.045 \ kg \cdot m^2$

Generally the torque experienced by the wheel is mathematically represented as

$\tau = F * cos (47)$

=> $\tau = 22.5 * cos (47)$

=> $\tau = 15.34 \ kg \cdot m^2 \cdot s^{-2}$

Generally this torque is also mathematically represented as

$\tau = I_a * \alpha$

=> $15.34 = 6.045 * \alpha$

=> $\alpha =2.538 \ rad/s^2$

4 0

3 years ago

Two tuning forks struck simultaneously produce a beat with a frequency of 2 Hz. The frequency of one fork is 364 Hz. What are th

Kitty [74]

Answer: If the other two frequencies are F and F1 then;

F-364=2

F=364+2

F=366Hz

364-F1=2

F1=364-2

F1=362Hz

Hence the two possible frequencies are 362Hz and 366Hz

Explanation:

5 0

4 years ago