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10. The temperature of water was increased by 10°C from the initial temperature 20°C to the final temperature 30°C. What was this temperature rise in °F? (1 mark) B Answer: q

F₁ = C₁ + 32=(20) + 32 = 68 F 4 = Co 6₁ +32 = (30) +32 = 86F AF = = F ₁² - f₁² = 86-68 = 18 f² 'f

Fig: 1