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The equation given needs to be transformed into a more familiar equation of a circle which we know the properties of and are therefore able to find its centre. Do you know what type of equation im speakin...
To solve this question, we need to know how many balls there are altogether in Cliff's bag. In total, there are 20 balls (8+7+5). We know that 8 of the balls are greens, so by subtraction (20...
Use energy difference between ground and first level to find E1-E0. Energy of the electron a nth energy level is found using En = (n^2pi^2hbar^2)/2mL^2Where n is the energy level plus 1, pi and h...
First you must convert the diameter into cm from mm:19/10 = 1.9cmThen you must find the radius of the ring:radius = diameter/2 = 1.9/2 = 0.95 cmThen you can calculate the area:area = 2πr2 = 2 x...
When writing a 12 mark answer in Psychology, I find it is most helpful to first understand the Assessment Objectives. In these types of question, you are awarded marks for AO1 (content) and A03 (evaluatio...
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