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V=J/C1.602×10^-19 ×150×10^3=1/2×m×v^2v=(2×1.602×10^-19×150×10^3/9.11×10^-31)^1/2v=2.29×10^8 m/sλ=h/pλ=6.63×10^-34/2.29×10^8 × 9.11×10^-31λ=3.17×10^-12
Two events are independent if and only if the product of their own probabilities is equal to the probability of them both happening, that is :A and B independent <=> P(AnB) = P(A)...
Analysing a Source WalkthroughCircles of Inference (Use whiteboard feature)Questions to address immediately (particularly if there is limited context to the source)· What is the s...
[Co(CN)6]4-CN has -1 charge so overall charge is -4. CN- is similar sized ligand to H2O so shape is unchanged and remains octahedral.
This is a very typical question for history A-level exams and I would suggest that a student approached it in four factors. The factors that I propose caused Hitler to become chancellor are 1) The failure...
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