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Need to make the bottom of the fraction an integer so we can simplify it. The easiest way to do that is the difference of 2 squares so multiply the whole fraction by (5 - 270.5). This gives...
Deoxygenated blood from the body flows into the right atrium via the vena cava. The right atrium contracts, forcing open the tricuspid valve. This allows...
Establish what information you have been given in the question (mass of person=50kg, mass of bag=10kg, velocity of bag=3m/s, start velocity of both=0m/s). Use the equation momentum=mv and the principle of...
Firstly draw the circle and label the diameter. Then calculate the radius by dividing the diameter by 2 (radius is 10mm). Using the formula A=pi*r^2 to find the area. This gives the answer as 100pi mm^2 o...
The key to writing a successful essay, whether in exams or coursework, is a really strong plan. I would advise a quick brainstorming session where you write down all your ideas, and then organise them in ...
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