The lung volume that represents the maximum amount of exchangeable air is the: <u>vital capacity</u>
<u></u>
The vital capacity is the volume of air that can be taken into the lungs by inhaling and expelling air by inspiration and expiration.
<h3>What are the lungs? </h3>The lungs are one of the largest organs of the body and are in charge of the respiratory function. They have a spongy appearance and are located in the thorax, protected by the ribs, one on each side of the heart.
Learn more about the lungs at: brainly.com/question/27010145
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Explanation:
Given that,
The vertical motion of mass A is defined by the relation as :
At t = 1 s
x = 115.33 mm
(a) We know that,
Velocity,
At t = 1 s
v = 18.94 mm/s
We know that,
Acceleration,
At t = 1 s
(b) For maximum velocity,
t = 45 seconds
For maximum acceleration,
t = 61.8 seconds
Hence, this is the required solution.
Answer:
The power is
Explanation:
From the question we are told that
The distance from the siren is
The intensity level is
The threshold of hearing is
Generally the intensity level is mathematically represented as
Where I is the intensity at which the siren radiates the sound
substituting values
=>
Now the amount of power the siren put out is mathematically evaluated as
Where A is the area of the siren which is taken as a sphere and it is mathematically evaluated as
So
substituting values
The correct answer to the question is B) 5,700 years.
EXPLANATION:
Before going to answer this question, first we have to understand half life period of a radio active substance.
The half life period of a radio active substance is defined as the time in which half of the radio active specimen has undergone decay.
As per the question, the initial concentration of the radioactive carbon-14 is given as 10,000.
Hence, initial concentration .
After 5,700 years, the remaining radio active specimen is 5000. It means that half of the radio active specimen has undergone decay in 5,700 years.
Hence, half life period of the radio active carbon-14 specimen is 5,700 years.