What's the unit of phase constant?

To determine how long it will take the crab to travel a distance of 1 meter, we need to convert the average speed given in kilometers per year to meters per minute. Here's how we can do that:

First, we need to convert the average speed from kilometers per year to meters per year. Since there are 1,000 meters in a kilometer, we multiply the speed by 1,000:

5.7 km/year * 1,000 m/km = 5,700 m/year

Next, we need to convert the speed from meters per year to meters per minute. There are 365 days in a year, and if we assume an average of 24 hours per day and 60 minutes per hour, we can calculate the conversion factor:

365 days/year * 24 hours/day * 60 minutes/hour = 525,600 minutes/year

Now we can calculate the speed in meters per minute:

5,700 m/year / 525,600 minutes/year ≈ 0.01086 m/minute

So, the crab travels at an average speed of approximately 0.01086 meters per minute. To find out how long it will take for the crab to travel a distance of 1 meter, we can divide 1 meter by the speed:

1 m / 0.01086 m/minute ≈ 92 minutes

Therefore, the crab will take approximately 92 minutes to travel a distance of 1 meter. So the correct answer is C) 92.