[Request] how many blue whales dropped at terminal velocity would wipe out the city of Houston
For reference lets say Houston is Houston Proper ≈630 square miles,3 million people, and wiped out would mean that more than 70% of residents are killed, permanently Incapacitated (physically or mentally) or displaced. Every whale is a carbon copy of the largest ever recorded ≈110 feet, 200 tons. Whales can be launched at any trajectory for optimal destruction, and the incident occurs during business hours on a weekday.