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How would you best approach an oral examination such as an IOC?

To be able to fully prepare yourself, you should tackle the oral step by step. Start by making sure you have all the passages that your examiner could possibly ask you about. This may be an array of poems, s...
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Differentiate the function: y = sin(x^2)*ln(5x)

We are tasked with differentiating y = sin(x 2 ) ln(5x) This function is actually a product of the functions: sin(x 2 ) and ln(5x) Therefore the product rule will be required. First let's calculate the deriv...
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Answered by Thomas C. • Maths tutor
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A 0.20 kg mass is whirled round in a vertical circle on the end of a light string of length 0.90 m. At the top point of the circle the speed of the mass is 8.2 m/s. What is the tension in the string at this point?

A diagram would be very beneficial for this problem. We can draw a free body force diagram of the mass. At the top of the circle the two forces acting on it are its weight and tension from the string. Both a...
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Answered by Thomas C. • Physics tutor
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How many moles of Magnesium must react with excess Oxygen to produce 80g of Magnesium oxide?

This question looks at the reaction: Magnesium + Oxygen goes to Magnesium Oxide Mg + O --> MgO The first step is to calculate the moles of MgO produced using the mass in the question and the relative form...
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Answered by Thomas C. • Chemistry tutor
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State and explain the trend in atomic radius down a group of the periodic table

Down a group of the periodic table, the atomic radius increases. As we go down a group, the outermost electron of an atom is placed in a shell that is further from the nucleus. This means it experiences the ...
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Answered by Thomas C. • Chemistry tutor
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