Final answer:
The amount of water collected after 4 days from a dripping faucet can be found by multiplying the number of drops in a day by the number of days and then converting to milliliters using the given conversion factor. Therefore, the correct answer is option (A) 15.75 mL.
Step-by-step explanation:
To calculate the amount of water collected after 4 days, we first need to find the number of drops that fall in 4 days. There are 60 seconds in a minute, 60 minutes in an hour, and 24 hours in a day, so there are 60 x 60 x 24 = 86,400 seconds in a day. Since a drop falls every 8 seconds, the number of drops in a day is 86,400/8 = 10,800 drops.
Therefore, the number of drops in 4 days is 10,800 x 4 = 43,200 drops.
To convert drops to milliliters, we use the conversion factor 20.0 drops = 1.00 mL. So, the number of milliliters is 43,200/20.0 = 2,160 mL.
Therefore, the correct answer is option (A) 15.75 mL.