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The question may be seen here: https://pmt.physicsandmathstutor.com/download/Maths/A-level/M4/Papers-OCR-MEI/Combined%20QP%20-%20M4%20OCR%20MEI.pdf
i) Let A = 4E-4 W, B=1E4 m/s^2 s.t. P = mA...

The points where the lines cross are the points where the two equations equal each other. To do this we solve simultaneous equations. Call equations as follows:(a) 3x - y = 4(b) x² + 7y = 5 Fir...

The key equation here is v = fL ( v is wave speed (m/s), f is frequency (Hz), L is wavelength (m)). We need to rearrange it to get L (the wavelength). To do this, we divide by f to get L = v/f. Frequency ...

k = q + 3i and z = k² - 8k* - 18q² i. Plug k into w to give: z = (q + 3i)²- 8*(q - 3i) - 18q² i. k means the compliment of k which just means that the ...

Monopoly power refers to the ability of a firm to set prices. Legislation is a form to reduce monopoly power. Most countries have laws that try to promote competition by preventing collusion between oligo...