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There is a Ferris wheel where the passengers are placed 10m away from the centre. At what speed must they be moving in order for them to feel completely weightless at the top of the wheel.

In order for the passenger to feel weightless, they must have a vertical acceleration equal to the acceleration due to gravity, i.e. they must be accelerating downward at a rate of 9.81m/s 2 . acceleration =...
Answered by • Maths tutor
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What is the function of a cadence in western music and what are the different types?

The function of the musical cadence in western music is to either create tension at the end of a musical phrase to lead into another segment of music, or to definitively conclude a musical phrase. This is co...
DB
Answered by David B. • Music tutor
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How to write a redox equation from half equations

There are three crucial steps in balancing redox half equations, which, when mastered, allow any two half equations, no matter how to complex, to be easily balanced. First, we balance the electrons, by deter...
JH
Answered by Jess H. • Chemistry tutor
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Give reasons for the increase in ionisation energy across a period in the table of elements.

Marks awarded for mention of outer most shells of electrons, shielding effects along side distance from nucleus of respective atoms as well as increased positive charge due to increased number of protons pre...
JS
Answered by Jack S. • Chemistry tutor
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Find the gradient of the curve y = sin(2x) + 3 at the point where x = pi

This is a question that relates to the topic of differentiation. Typically students encounter this topic near the end of the first term of the first year of their A Level.The equation of the curve, y = sin(2...
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Answered by Agnieszka S. • Maths tutor
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