To find the superhero's speed in miles per hour (mph), we can use the formula:
\[ \text{Speed} = \frac{\text{Distance}}{\text{Time}} \]
The distance from New York to Los Angeles is 2,450 miles, and the time it takes is 30 minutes. First, we need to convert the time from minutes to hours:
\[ 30 \text{ minutes} = \frac{30}{60} \text{ hours} = 0.5 \text{ hours} \]
Now we can calculate the speed:
\[ \text{Speed} = \frac{2,450 \text{ miles}}{0.5 \text{ hours}} = 4,900 \text{ mph} \]
Thus, the superhero is flying at a speed of 4,900 mph.