A student investigates the cooling of hot water in a beaker. The apparatus is shown in Fig. 2.1. Fig. 2.1 The student uses a thermometer to measure room temperature $$\(\theta_{\mathrm{R}}\)$$. Room temperature is $$\(22^{\circ} \mathrm{C}\)$$. On Fig. 2.2, show clearly the reading $$\(\theta_{\mathrm{R}}\)$$. Fig. 2.2

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