This physics problem tests your understanding of fundamental physical laws and their applications. The step-by-step solution below breaks down the problem using relevant equations and physical reasoning.
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c) State two advantages of nuclear energy. • Nuclear energy produces a large amount of energy from a small quantity of fuel. • Nuclear power plants do not produce greenhouse gases during operation. d) Calculate the mass of iodine-131 remaining after 24 days. Step 1: Determine the number of half-lives that have passed. The half-life of iodine-131 is 8.0 days, and the total time elapsed is 24 days. Number of half-lives (n) = Total timeHalf-life n = 24 days8.0 days n = 3 Step 2: Calculate the remaining mass using the radioactive decay formula. The formula for remaining mass is N = N_0 ((1)/(2))^n, where N_0 is the initial mass and n is the number of half-lives. N = 640 mg × ((1)/(2))^3 N = 640 mg × (1)/(8) N = 80 mg The mass of iodine-131 remaining after 24 days is 80 mg. Send me the next one 📸