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How do I structure an essay?

Very generally; an essay is made up of an introduction, main body and conclusion.An introduction 'funnels into' your main body and aims to draw the reader in and establish what you're going to argue or in...

Answered by Blakeney C. • English Literature tutor

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A roller coaster car starts stationary at the top of a downwards slope. At the bottom of the slope, it has a speed of 30m/s. Use the conservation of energy to find the vertical height of the slope. (Use g=10 m/s^2)

From the conservation of energy, we know that the change in gravitational potential energy (GPE) is equal to the change in kinetic energy (KE). GPE=mgh and KE=(1/2)mv^2. At the top of the slope, the car s...

Answered by Tamsin M. • Physics tutor

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Critically discuss Milgram's (1963) obedience experiment

Milgram (1963) conducted a labatory experiment, using an independent methods design, which aimed to investigate whether ordinary people would obey authority when instructed to administer an electirc shock...

Answered by Skye W. • Psychology tutor

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An iron-alloy nail (2.41g) is dissolved in 100cm3 acid. 10cm3 portions of this solution are titrated with KMnO4 (0.02M) and 9.80cm3 of KMnO4 was needed to react with iron solution. What % of iron by mass is in the nail?

This is a common example of a titration calculation which can be broken down into several key steps:1) Write a balanced equation for the redox reaction:MnO4 - + 8H+ + 5Fe2+ --> Mn2+ + 4H2O + 5Fe3+(This...

Answered by Amy C. • Chemistry tutor

4796 Views

a) Find the area of a semi circle with diameter 12cm. b) The area of a semi-circle is 60cm^2. Find the radius of the sem-circle.

a) radius = 12/2 = 6cm. Area of a circle = pi x r^2 = 36pi. Area of semi-circle = 36pi / 2 = 18pi cm^2b) Area of full circle = 120. pi x r^2 = 120. r^2 = 120/pi. r = sqr root (120/pi)= 6.18cm

Answered by Ahmed G. • Maths tutor

5261 Views