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3 years ago

7

What does one calorie measure?

1 answer:

umka2103 [35]3 years ago

5 0

Answer:

A

Explanation:

Calorie is a measure of thermal energy, or heat. So A is the only one that works, since, the rest look for mass or change in temperature.

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The tenth pair of cranial nerves is the longest in the body and leaves by way of the jugular foramen. These nerves are called th

tekilochka [14]

Answer:

Vagus nerves

Explanation:

The vagus nerves are the tenth pair of cranial nerves

4 0

4 years ago

The segment on the left has diameter 1.6 mm, and each of the segments on the right has diameter 0.4 mm. Assume the blood can be

oksian1 [2.3K]

Answer:

Explanation:

The flow entering the first segment will be the same as the flow exiting the second segment, and in both cases it will be equal to the velocity multiplied by the area of the segment. If $Flow_{a} = Flow_{b}$ and Flow = VxA, then you have:

$V_{a} x A_{a} = V_{b} x A_{b}$ (1)

You can also calculate the transversal area of each segment, because blood vessels are cylinders and you know each segment's diameter. The formula to calculate this is:

$A = \pi /4 x d^{2}$

Replacing d for each segment you have:

$Area_{a} = 2.01 mmArea_{b} = 0.13 mm$

Now, replacing these values on (1), you have:

$V_{a} x 2.01 mm = V_{b} x 0.13 mm$

$(V_{a} x 2.01 mm)/0.13 mm = V_{b}$

$15.4 x V_{a} = V_{b}$

This means that velocity in the second segment is 15.4 times the velocity in which blood entered the first segment.

5 0

3 years ago

What is the approximate size of Earth’s magnetic field? Where are Earth’s magnetic poles? Where is the magnet that causes Earth’

nataly862011 [7]

Earths poles are on opposite sides of the earth

7 0

3 years ago

Read 2 more answers

What is the relationship between atmospheric pressure and the density of gas particles in an area of decreasing pressure? (2 poi

ivann1987 [24]

Answer:

A. As air pressure in an area decreases, the density of the gas particles in that area decreases.

Explanation:

At constant temperature, pressure and density of a gas are directly related. So if pressure decreases, density decreases.

4 0

4 years ago

Read 2 more answers

At a particular temperature the speed of sound is 330 m/s and its frequency is 990 Hz. Choose the correct period of the wave in

likoan [24]

The correct answer of the question is : 0.001 s.

CALCULATION:

As per the question, the speed of sound v = 330 m/s

The frequency of the sound f = 990 Hz.

Let the wavelength of the wave is $\lambda$ .

The wavelength of the wave is calculated as-

wavelength $\lambda=\frac{speed}{frequency}$

= $\frac{330}{990}\ m$

= 0.33 m.

Now we are asked to calculate the time period.

The time period of the wave is reciprocal of frequency.

Mathematically time period T = $\frac{1}{f}$

= $\frac{1}{990}\ s$

= 0.001 s.

As per the question, we need the period.

Hence, the period of the wave is 0.001 s.

6 0

3 years ago

Read 2 more answers