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How would you calculate the total blood volume of the body, without exsanguination?

Inject a solution of known volume into the blood. Allow this to circulate for an appropriate length of time, e.g. 5-10 mins, then take a blood sample. The dilution of the initial solution can then be calc...

CF
1200 Views

Explain the main barriers that LEDC's face when attempting to achieve stable, long-term growth

Long-term growth is defined as an increase in the productive capacity of an economy, which is due to the increase in the quality or quantity of an economy's factors of production (FoP). These barriers may...

RT
Answered by Richard T. Economics tutor
9212 Views

The polynomial f(x) is defined by f(x) = 18x^3 + 3x^2 + 28x + 12. Use the Factor Theorem to show that (3x+2) is a factor of f(x).

The factor theorem states that if (x+a) is a factor of f(x), then f(-a)=0. This basically means that if (x+a) is a factor of f(x), then when (x+a)=0, f(x)=0, i.e. when x=-a, f(-a)=0. Our (x+a) in this cas...

GF
Answered by George F. Maths tutor
3564 Views

Describe the pressure and volume changes in the lungs during inspiration

During inspiration, the intercostal muscles contract, moving the sternum up and out. This increases the thoracic volume, hence decreasing the pressure. The pressure gradient set up causes air inflow from ...

DN
Answered by Dhaval N. Biology tutor
3689 Views

Describe the interaction that is responsible for keeping protons and neutrons together in a stable nucleus.

The interaction responsible for keeping protons and neutrons together in a stable nucleus is the strong interaction. The strong interaction has a very short range of less than/up to 5fm. The strong intera...

DN
Answered by Dhaval N. Physics tutor
11201 Views

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