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For a reaction to occur molecules must collide with energy greater than or equal to the activation energy, in the correct orientation. The factors affecting the rate of a reaction are:Pressure of re...
First you should look at the equation and try and get a sense of the general shape of the graph. The highest power in here is a 3, so this is a cubic graph. The coefficient (number in front of the x^3) is...
The common mistake the students make is to simplify the fraction before factorising numerator and denominator. Here, we need to see that the numerator: x^2 - 4 is a difference between squaresMMAnswered by Martina M. • Maths tutor3733 Views
First, we need to see what the important information in this problem is: the mass of the student is irrelevant as the problem focusses on the ball. So we now know that the important information is: m = 40...
Getting started: This question is asking us to assess the validity of a particular view which means that we need to relate the interpretation to the evidence that we have, and assess how ...
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