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A small bead is threaded on a smooth, straight horizontal wire which passes through the point A(–3, 1) and the point B(2, 5) in the x-y plane. The bead moves under the action of a horizontal force F of magnitude 8.5 N whose line of action is parallel to the line with equation...
For questions 1–10, in Section A, select one answer from A to D and put a cross in the box . If you change your mind, put a line through the box and then mark your new answer with a cross . 1 The ionising properties of radiations determine their penetrating power. Which of the...
(2) 22 Sample Assessment Materials © Edexcel Limited 2008 Edexcel IGCSE in Biology (d) Lee carried out the experiment at a range of light intensities, from low to very high light intensities. Sketch a line to show what results you would expect. Leave blank Rate of photosynthesi...
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If you change your mind about an answer, put a line through the box and then mark your new answer with a cross . My hobbies 1 Some young people are talking about their hobbies. What do they say? Listen to the recording and put a cross in each one of the three...
Edexcel 中心指南-管理说明书 Centre Guidance Administrative Instructions for Centres Level 1 Foundation Project (ZPJ10)Level 2 Higher Project (ZPJ20)Level 3 Extended Project (ZPJ30)
Figure 3 30 N 30° A small parcel of mass 3 kg is held in equilibrium on a rough plane by the action of a horizontal force of magnitude 30 N acting in a vertical plane through a line of greatest slope. The plane is inclined at an angle of 30° to the horizontal, as shown in ...
log a – log b = log(a – b) (a) show that a = b2/(b - 1) (b) Write down the full restriction on the value of b, explaining the reason for this restriction. (i) Prove that for all n , n2+ 2 is not divisible by 4 ...
Edexcel GCE Biology 1 6BI01 01 学习指南说明书 Examiners’ Report January 2011 Edexcel Limited. Registered in England and Wales No. 4496750 Registered Office: One90 High Holborn, London WC1V 7BH GCE Biology 1 6BI01 01