So, if a cruise ship is sailing at a speed of 21 knots, you might compare that to roughly 24 mph. A cruise ship can typically reach a speed of around 30 knots, about two to three knots higher than its cruising speed, but it’s not likely to go that fast. Cruise ships rarely ...
Calf pain when running doesn’t just go away on its own (usually). You need to take steps to address the tightness or soreness to accelerate the recovery process and prevent future injury. We’ve got a couple of ideas: Grab a kettlebell. Sit it on the ground, in front of you with t...
The cigarette boat top speed averages 90 knots (or about 104 miles per hour) in calm waters. To put this into perspective, most monohulled boats top the charts at 7 miles/hour. On the other hand, watercraft with planing hulls can reach 59 miles per hour. Although cigarette boats were n...
If you are traveling at 8 knots for 45 minutes, how far will you have traveled in nautical miles? A car accelerates at a constant rate starting from rest, reaching 94 km/h in 9.0 s. Find how far does it go in this time. How to convert kW to kVA with a formula Sound with a fre...
If we look at the wing of a typical small plane, which has a top surface that is 1.5 - 2.5% longer than the bottom, we discover that a Cessna 172 would have to fly at over 400 mph to generate enough lift. Clearly, something in this description of lift is flawed. ...
How do you convert 10 miles per hour to the unit rate form of feet per minute? If a car is traveling at 55 mph decelerates at 5 m/s, how far does it travel before stopping? How fast can a Hylobates lar move? At time, t = 0 sec, a free falling rock is noted to ha...
Delta Q – built by Gordon Haslam, Portland, OR, 85 hp Merc – 20 mph DOUBLE EAGLE Double Eagle: We accumulated 2836 hrs. over a 9 year peroid on the first engine which was a OMC Cobra. It performed well but the OMC does not compare to the Mercruiser 4.3 LXH that is in there now...
Why does the air move faster over the top, and for that matter, how do we know how much downwash is produced? It turns out, these two questions are related, and also why lift is incorrectly explained so often. It also turns out that the answer to this question is extraordinarily compli...
With its massive 17,335-hp 5522-liter two-stroke diesel inline-seven turning at a relatively lazy (for this magazine, anyway) 77 rpm, the Hyundai Glovis–owned ship plied the seas at a max speed of 20 knots (23 mph). Martin Lueke/Shutterstock.com The Golden Ray in a German port in ...