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Given the Earth orbits the Sun at a distance of 1.49*10^11m with Me = 5.97*10^24kg and Msolar = 1.99*10^30, what is the gravitational force between the Earth and Sun?

Using F = Gm 1 m 2 /r^2 and substituting in the values, we get F = 3.57*10^22N.
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Answered by Aaron S. • Physics tutor
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Why does cholesterol need to be reduced and how do statins do this?

-High levels of cholesterol (especially LDL's, the 'bad' type) clog the arteries with a thick fatty substance -This causes narrowing of the coronary arteries (which carry blood to the heart) -The narrowing a...
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Answered by Isobel P. • Biology tutor
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I don't understand how to solve quadratic inequalities?

Let us look at an example so we can see what is going on as we go through the method. Be cautious of just memorising the method; understanding it will make your life far easier. Q: x 2 + 2x - 8 < 0 Intuit...
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Answered by Sara H. • Maths tutor
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What are "actus reus" and "mens rea"

Most criminal offences can be broken up into two parts that need to be satisfied in order for somebody to be convicted of the offence. These are the Actus Reus and Mens Rea. The Actus Reus can be thought of ...
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Answered by Robbie R. • Law tutor
7882 Views

how would I structure a 16 mark question?

if the essay has no stem to it I.e refers to a person in the question -then there is 6 marks for A01 which is primarily description of a theory or an experiment e.g what procedure was used, how many and what...
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