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Explain how red blood cells are adapted to carry out their function?

Red blood cells transport oxygen from the lungs to all the cells in the body. To do so effectively, they have lots of adaptations: Red blood cells contain haemoglobin , which is a molecule that r eversibly b...
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Answered by Francesca G. • Science tutor
92986 Views

A motor does 4.8kJ of work in 2 minutes. What is its power output?

Power is the RATE of work done or energy transferred. By the Law of Conservation of Energy, energy cannot be created or destroyed, only converted from one form to another. Power is the rate at which energy i...
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Answered by Simran J. • Physics tutor
11897 Views

Expand (x + 4) (x - 8)

Multiply the first x term by the second x term (explain that any number times by itself is itself squared) = x^2Multiply the non-x term of the first bracket by the x term of the second bracket and check post...
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Answered by Harry H. • Maths tutor
9446 Views

To what extent does rapid urban migration pose challenges to urban areas? Answer using one case study (6 marks)

The population of Mumbai has almost doubled since 1991, rising to 22 million in 2018, and formal settlements have not been able to accommodate this. As a result, 42% of people live in informal urban areas ca...
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Answered by James A. • Geography tutor
3807 Views

The diagram shows the position of two ships, A and B, and a lighthouse L. Ship A is 5km from L on a bearing of 070° from L. Ship B is 3km from L on a bearing of 210° from L. Find the distance between A and B correct to 3.s.f.

(Draw diagram) From the diagram we can see that angle BLA= 210-70 = 140° . So for our triangle BLA we now have two sides and an included angle and we want to work out the length of the side opposite the angl...
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Answered by Callum S. • Maths tutor
20880 Views