Final answer:
The question seems to be about converting a stationary area from square meters to square millimeters. If the stationary target area is 0.0750 m², then it would be 75,000 mm² after the conversion. More context or details are needed for an accurate conversion.
Step-by-step explanation:
The question you've asked about how many millimeters squared (mm²) a stationary target area is seems to be missing some context. The provided information that mentions a stationary target area doesn't specify this area directly. Instead, there are different scenarios and physics-related problems given. It would help to know the specific situation or provide the exact dimensions of the target area you are asking about.
For example, if you're referring to the area mentioned as 0.0750 m², which is a measure of a different quantity than mm², you would need to convert square meters to square millimeters. To convert m² to mm², you multiply by 1,000,000 because there are 1,000 millimeters in a meter, both in length and width. Thus, an area of 0.0750 m² is equivalent to 75,000 mm².
If you are asking about a different area not described here, please provide more details about the target's dimensions or the context of the problem so we can give a more accurate answer.