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Explain the difference between energy and power.

Power is the rate at which energy is transferred. For example, a typical kettle may use 1.2 kiloWatts (kW) for about 2 minutes to boil water. This means that the kettle uses 1200 Joules of energy per seco...

Answered by Henry J. • Physics tutor

3334 Views

Differentiate (2^x)(5x^2+5x)^2.

This is a relatively difficult equation to differentiate as there are various parts to consider.Firstly, we will let u=2^x and v=(5x^2+5x)^2 in the product rule. Then the differential of u is (2^x)ln(2). ...

Answered by George H. • Maths tutor

3196 Views

Explain why benzene requires use of a halogen carrier catalyst to react with bromine while phenol does not.

The oxygen atom in the phenol molecule has a lone pair of electrons. These electrons become delocalised into the aromatic ring, increasing its electron density. This activates the ring. This causes Br

Answered by Aidan M. • Chemistry tutor

13083 Views

Explain the factors involved in choosing the venue to an event, with reference to a specific case study

Typically this question would show up as an essay question in an exam. To start (introduction), the case study of choice must be highlighted, with a brief insight into who is responsible ...

Answered by Maya M. • Geography tutor

1664 Views

What is the most important thing to bear in mind when approaching the entry exams or the interviews?

Having done it myself and experienced a year of teaching this year, it is very clear that the most important thing to do is answer the question that is being asked of you. It will do you no good to provid...

Answered by Lowri C. • Oxbridge Preparation tutor

1723 Views