The average adult heart pumps about 84. mL/s of blood at 72 beats per minute. Suppose you need to calculate how long it would ta
1 answer:
Explanation:
The given data is as follows.
Rate of heart pump = 84 ml/sec
Beats per minute = 72
Flow or volume = 5300 ml
It is known that relation between time, flow and rate is as follows.
Time =
Therefore, putting the given values into the above formula as follows.
Time =
=
= 63.09 sec
Thus, we can conclude that 63.09 sec would be taken by the average heart to circulate 5300 mL of blood.
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Answer:
look at the graph
Explanation:
We know that as temperature increases, solubility increases.So, when there is a rise in temperature, as more solute become dissolved, the saturation point will be lifted and more amount of solute will be needed to reach saturation.
Here, when the temperature was 20oC, 38 g of salt was needed for saturation. As the temperature is increased by 15oC, at 35oC more amount of salt was needed to reach saturation(45g). So a 15oC rise in temperature caused a 7 g rise in the amount of salt needed for saturation. So, if temperature is increased additionally through 10oC, an approximate 4.5 g of salt will be needed more to reach the saturation. That is at 45oC, the amount of salt at saturation will be approximately 49.5 g.
So, the temperature and solubility as well as temperature and amount of salt at saturation are linearly related(directly proportional)
