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Knots one nautical mile per hour there are 1 1/8 of a nautical mile in a statute mile
Originally measured by throwing a piece of wood attached to a piece of rope over the back of a boat and counting how many knots went past in a given time. These days it is more normally measured by: a/ using a pitot static tube which measure difference in pressure and uses bernoulli's equation (enter into wikipedia as is easier to read) to find the velocity. b/ Some form of propeller (technically impeller) which is suspended under the boat. The passing water turns, the speed of rotation is measurred and this gives you the speed of the boat. c/Using ultrasonics to measure the speed that small bubbles of air in the water passing under the boat go past.
What else can I help you with?
What would a scientist most likely need to consider when designing a speed boat?
The weight of the boat.
How do you measure lathe speed?
lathe speed is numerically measured by cutting speed vdn/1000.
Distinguish induced emf and a generated emf?
EMF= VoltageWhen and electron travels through a conductor it creates a ripple in space, just like a boat creates one in water.GeneratedThe speed or force at which the boat is moving is the voltage and is generated by a source in this case is the engine.InducedWhen the boat with an engine passes by a boat with no engine the ripple or wave will move the other boat. speed of the moving boat again, is the voltage but this time its induced.Like wise when electrons flow on a wire the ripples or magnetic flux will induce or generate motion on any wire or conductor next to it. That's how transformers work. ;)
What is a tachogenerator in control system?
a device to measure rotation speed of a shaft as a proportional voltage
What real question did the two engineers James czarnowski and Michael triantafy explore?
Will a boat designed like a penguin improve the speed and agility of shps?
How many mph can a tug boat go?
Boats/ships don't measure speed in mph.
Why is a speed boat fast?
because the name speed boat means its a fast boat why else would it be called a speed boat
What unit speed is used to measure the speed of ships?
The nautical term for a unit of speed when sailing or navigating a boat is the word knots. To measure a knot it is the unit of speed equal to one nautical mile approximately 1.151 mph.
What is an example of a unit to measure speed?
Miles per hour, like a car. Knots, like a boat or airplane.
How do they measure time on a boat?
they measure time on a boat with a chronometer
How does the speed effect the speed of the sail boat?
The closer to the maximum speed the boat gets the harder it is to increase the speed.
What is a boat with an engine called?
speed boat
How big is a speed boat?
A speed boat is generally between 14ft and 22ft in length.
When was the first speed boat invented?
The first speed boat was invented in 1910 by David Harmon
Maximum speed of a boat?
180 miles per hour is the maximum boat speed registered
What is used on a speed boat engine to stop it from rusting?
on a speed boat to stop it from you coat it with oil i thimk
A boat moves at a speed of 15 kmh in still water. The river it is traveling in flows at a rate of 3 kmh downstream. What is the velocity of the boat if it travels downstream What is the velocity of th?
If the boat is moving downstream, you add the speed of the boat with the speed of the river flow. Therefore, the velocity of the boat downstream is 18 km/h. If the boat is moving upstream, you subtract the river flow speed from the boat's speed, so in this case, it would be 12 km/h.
