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Determine an approximate value for the acceleration of free fall using a tennis ball, metre ruler and a stopwatch.

Drop the ball from a given height that is measured with the ruler and measure the time it takes for it to reach the ground using the stopwatch. Use the appropriate SUVAT equation of motion: we have a height ...
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Answered by Viktoria N. • Physics tutor
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Solve algebraically for a and b: 6a+b=16, 5a-2b=19

Multiply equation 1) by 2 : 12a+2b=32. There are alternate signs of b and so therefore add the equations together: 17a=51. Solve for a: a=3. Sub a into one of the equations to find b: 5*3-2b=19b=-2. The fina...
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Answered by Sorcha S. • Maths tutor
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What are the principles that define the Biological level of analysis ?

There are 3 principles that define the Biological level of analysis , and each come with a research study conducted by researchers : Principle 1 : Biological correlates of behaviour - looks at the physiologi...
Answered by • Psychology tutor
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How do I ensure a good mark in a Philosophy Paper 1 exam?

The key to obtaining all the marks in an IB philosphy exam is to know the structure of an essay and to have a clear approach to answer all (or almost all) the topics that are covered in the IB philosphy syll...
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Answered by Anna B. • Philosophy tutor
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“Provision for depreciation is made to provide funds for replacement of a fixed assest” discuss this statement (6 marks)

Depreciation is not a movement of cash so therefore does not provide funds for a replacement of a fixed assest. Depreciation is a book keeping entry, debiting the income statement (P+L) and crediting provisi...
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Answered by Shane C. • Accounting tutor
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