It is known that a certain kind of algae in the dead sea can double in population every 2 days. suppose that the population of algae grows exponentially, beginning now with a population of 1,000,000. (a) how long it will take for the population to quadruple in size?

4 days

Explanation:

1,000,000*4=4,000,000(total size after quadrupling)

1,000,000*2=2,000,000(after 2 days.)

2,000,000*2=2,000,000(after 4 days.)

therefore it will take 4 days to quadruple in size

show the diagram then i will answer

5 w for 1hr = 5x60x60 joules=300x60=3000x6=18,000j as total energy conversion. efficiency of bulb needed for radiant to thermal within 18000