34 meters/seconds = _____ mm/hour

I know 1 m is 1000 mm and 60 seconds is 1 hour. So I got 2040000.
Would the answer in scietnific notation and significant figures be 2.0 x 10^6 mm/hour?

Yes.

34m/s
= 34m/s * 1000mm/m * 60s/hr
= 2040000mm/hr
≈ 2.0×10^6mm/hr

I don't agree with either. Both left out a factor of 60 to convert min to hr.

2.04E6 is really mm/min. To convert to mm/hr use
2.04E6mm/min*60 min/hr = 1.2E8 mm/hr

To convert from meters per second to millimeters per hour, you can use the following steps:

1. Convert meters to millimeters: Since 1 meter is equal to 1000 millimeters, multiply the given value of 34 meters/second by 1000:

34 meters/second × 1000 = 34,000 millimeters/second

2. Convert seconds to hours: Since 1 hour is equal to 3600 seconds (60 seconds × 60 minutes), multiply the millimeters/second value by 3600:

34,000 millimeters/second × 3600 = 122,400,000 millimeters/hour

Therefore, 34 meters/second is equal to 122,400,000 millimeters/hour.

In scientific notation, the answer can be expressed as 1.224 × 10^8 mm/hour. Please note that the value should be rounded to the appropriate number of significant figures based on the given data. If the original value of 34 meters/second has only 2 significant figures, then the final answer should also be expressed with 2 significant figures as 1.2 × 10^8 mm/hour.