Respuesta :
Data and interpretation:
84 ml/s of blood at 72 beats per minute: this means that the heart pumps 84 mililiter of blood per second, at 72 beats per minute
Question: how long it takes to pump 6600 ml?
Solution:
Calculate how many times is 84 contained in 6600
6600 ml / 84 ml/s = 78.6 s
Answer:78.6s
84 ml/s of blood at 72 beats per minute: this means that the heart pumps 84 mililiter of blood per second, at 72 beats per minute
Question: how long it takes to pump 6600 ml?
Solution:
Calculate how many times is 84 contained in 6600
6600 ml / 84 ml/s = 78.6 s
Answer:78.6s
The heart takes [tex]\boxed{79{\text{ s}}}[/tex] to circulate [tex]6600{\text{ mL}}[/tex] of blood.
Explanation:
The average rate of blood pumping by adult heart at rate of [tex]72[/tex] beats per minute is [tex]84{\text{ }}{{{\text{mL}}}\mathord{\left/{\vphantom{{{\text{mL}}}{\text{s}}}}\right.\kern-\nulldelimiterspace}{\text{s}}}[/tex] .
Our aim is to obtain the time required by heart to circulate [tex]6600{\text{ mL}}[/tex] of blood.
The rate [tex]84{\text{ }}{{{\text{mL}}}\mathord{\left/{\vphantom{{{\text{mL}}}{\text{s}}}}\right.\kern-\nulldelimiterspace}{\text{s}}}[/tex] can be referred as the adult heart pumps [tex]84[/tex] milliliters of blood in one second at the rate of [tex]72[/tex] beats per minute.
Consider [tex]t[/tex] be the time required for heart to pump [tex]6600{\text{ mL}}[/tex] blood.
Since, in one second the heart pumps [tex]84{\text{ }}{{{\text{mL}}}\mathord{\left/{\vphantom{{{\text{mL}}}{\text{s}}}}\right.\kern-\nulldelimiterspace}{\text{s}}}[/tex] and this can be written as,
[tex]84{\text{ mL}}\Rightarrow 1{\text{ second}}[/tex]
In [tex]t[/tex] second the heart will pump [tex]6600{\text{ mL}}[/tex] of blood and this can be written as,
[tex]6600{\text{ mL}}\Rightarrow t{\text{ second}}[/tex]
The value of [tex]t[/tex] is calculated as shown below.
[tex]\begin{aligned}t&=\frac{{6600{\text{ mL}}\times 1{\text{ second}}}}{{84{\text{ mL}}}}\\&=\frac{{6600}}{{84}}{\text{ seconds}}\\&=78.57{\text{ seconds}}\\&\approx 79{\text{ s}}\\\end{aligned}[/tex]
Therefore, it takes heart to circulate [tex]6600{\text{ mL}}[/tex] of blood in approximately [tex]79{\text{ s}}[/tex].
Since, blood can flow so it is called as fluids. Fluid has no fixed shape and having definite volume.
The expression for density for any fluid can be written as,
[tex]\rho=\frac{m}{V}[/tex]
Here, [tex]{{\rho }}[/tex] is density, [tex]m[/tex] is the mass of the fluid and [tex]V[/tex] is the volume of fluid.
Thus, the heart takes [tex]\boxed{79{\text{ s}}}[/tex] to circulate [tex]6600{\text{ mL}}[/tex] of blood.
Learn More:
1. Volume https://brainly.com/question/4593217
2. Gravity https://brainly.com/question/1675037
3. Energy https://brainly.com/question/1807873
Answer Details:
Grade: High School
Subject: Physics
Chapter: Fluids
Keywords:
Heart, pumps, 84 mL/s, blood, 72 beats, minute, long, average , circulate, 79 s, 6600 mL, fluids, property, calculate.
