Top answers

What is the difference between speed and velocity?

The difference is a bit subtle. Velocity is speed in a particular direction. So, for example, a car travelling at 50 miles per hour round a bend is travelling at constant speed. Its direction is changing, ho...
JK
Answered by Jan K. • Physics tutor
4656 Views

What is the Just War theory?

FOR GCSE & A LEVEL OVERVIEW: A just war is one that is fought for the correct reasons and on the basis of virtuous principles . In this case, a war is just because it is justified . In relation to Christ...
JT
9988 Views

How does antibiotic resistance relate to evolution?

Antibiotics are used to treat various diseases and ailments by targetting the bacteria which cause said diseases. Bacteria are subject to natural selection and evolution like any other organism. Random mutat...
SH
Answered by Syed Hadi T. • Biology tutor
7133 Views

Describe how tariff could reduce imports.

A tariff is a tax imposed on imports or exports. Tax is an expense and hence increase the price of the goods and services. As price increases, demand decreases. Consequently, suppliers are discouraged from i...
AH
Answered by Aminath H. • Economics tutor
18389 Views

How do I write a really good History essay?

It can seem pretty daunting when you sit down to write a History essay, but these tips will hopefully make it a lot easier. Planning Make sure you plan your essays before you write them. In timed conditions,...
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Answered by Ruby K. • History tutor
9164 Views