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Answer Wiki. Some knots can come out within a couple minutes. Others never come out. I've had extreme back and neck pain for the past year and a half, most of it just tension in my muscles. I've had numerous massages, taken other treatment, all to no avail.
  1 knot = 1 Nautical Mile per Hour. 1 knot is approximately 1.15 miles per hour, or exactly 1.852 kilometers per hour. The speed of boats and currents/tides/etc are mea â¦ sured in knots, along with a few other things.21 people found this useful.ne knot would therefore be equivalent to 1.85166 kph. Today, we use a 28-second period which equates to 1.852 kph. The knot indicated speed was standardized to be equal to a nautical mile per hour, which matched the ship's speed with its position when not in a moving current.