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lidiya [134]
3 years ago
10

The human nervous system can propagate nerve impulses at about 102 m>s. Estimate the time it takes for a nerve impulse to tra

vel 2 m from your toes to your brain.
Physics
1 answer:
Olin [163]3 years ago
4 0

Answer:

t = 0.196 s

Explanation:

The speed of a pulse is determined by the characteristics of the medium, its density and its resistance to stress, as long as these remain the speed will be constant for which we can use the kinetic expressions of the uniform movement

          v = x / t

          t = x / v

calculate

          t = 2/102

          t = 0.196 s

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Given equations:

x+y+z=7\ldots(1)y=3\ldots(2)2x+y-z=5\ldots(3)

Substitute 3 for y in equation (1);

\begin{gathered} x+3+z=7 \\ x+z=7-3 \\ x+z=4\ldots(4) \end{gathered}

Substitute 3 for y in equation (3);

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Adding equation (4) and (5);

\begin{gathered} (x+z)+(2x-z)=4+2 \\ x+z+2x-z=6 \\ 3x=6 \\ x=\frac{6}{3} \\ x=2 \end{gathered}

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Therefore, the values of (x,y,z) is (2,3,2).

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1 year ago
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Let's use Newton's 2nd law of motion:

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3 years ago
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