Thirty-two ounces of water was collected from one spray nozzle in 30 seconds. What is the nozzle delivery rate in gallons per minute?

To determine the nozzle delivery rate in gallons per minute (GPM), we first need to convert the amount of water collected from ounces to gallons and the time from seconds to minutes.

There are 128 ounces in a gallon. Therefore, thirty-two ounces is equal to ( \frac{32}{128} ) gallons, which simplifies to 0.25 gallons.

Next, since the water was collected in 30 seconds, we need to convert this time into minutes. There are 60 seconds in a minute, so 30 seconds is equivalent to ( \frac{30}{60} ) minutes, which simplifies to 0.5 minutes.

Now, we can calculate the nozzle delivery rate in GPM by dividing the volume in gallons by the time in minutes:

[

\text{Delivery Rate} = \frac{0.25 \text{ gallons}}{0.5 \text{ minutes}} = 0.5 \text{ GPM}

]

Thus, the nozzle delivery rate is 0.5 gallons per minute, which corresponds to the correct answer. Understanding this calculation is key in assessing the effectiveness of pesticide applications and ensuring that the proper amount is being delivered to control pests effectively.