2 years ago

Why does your heart not get tired of constantly beating throughout your body

1 answer:

6 0

cardiac muscle is striated. Uniquely, the cells of this kind of muscle are joined strongly together at adherens junctions that “enable the heart to contract forcefully without ripping the fibers apart.”

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Answer:

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3 years ago

A motorcycle is traveling along a highway at 26 m/s. How far does the motorcycle travel in 15 s?

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2 years ago

An incident ray of light strikes water at an angle of 30°. The index of refraction of air is 1.0003, and the index of refraction

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A tank of volume 0.25 ft is designed to contain 50 standard cubic feet of air. The temperature is 80° F.Calculate the pressure i

slavikrds [6]

Answer:

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Solution:

As per the question:

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The capacity of tank, $V' = 50ft^{3}$

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Temperature, T = $59^{\circ}F$ = 288.2 K

Now, from the eqn:

PV = nRT (1)

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V = V'

Similarly,

P'V' = n'RT' (2)

Also,

The amount of gas is double of the first case in the cylinder then:

n' = 2n

$\]frac{n'}{n} = 2$

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Now, from eqn (1) and (2):

$\frac{PV}{P'V'} = \frac{nRT}{n'RT'}$

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3 years ago

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weeeeeb [17]

Answer:cerebral cortex

Explanation:

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