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No, the speed of sound is about 57,000 fpm, depending on atmospheric conditions. Most lawn mower blades move at 10,000 fpm to the highest I have seen is 18,000 fpm.
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Does a wind turbine spin at the speed of sound?
Definitely not. Not even the tip of the blade.
How does the speed of sound in steel compare with the speed of sound in air?
The speed of sound in steel is faster than the speed of sound in air.
The upper limit to the speed of an object with mass?
An object with mass might approach, but never reach, the speed of light.An object with mass might approach, but never reach, the speed of light.An object with mass might approach, but never reach, the speed of light.An object with mass might approach, but never reach, the speed of light.
What does high pressure do to sound?
The speed of sound does not change with atmospheric pressure. The speed of sound changes with temperature.
How fast is echolocation?
It is slower than half the speed of sound.
How does a lawn mower blade cut all the grass under the mower deck when the blade is only sharp on the ends?
If the engine is running at proper speed the outside edge of the blade is moving at 1900 RPM, at those speeds only the first two outs side inches of the blade are doing all the work.
Does a wind turbine spin at the speed of sound?
Definitely not. Not even the tip of the blade.
How fast should a lawnmower blade spin?
Most modern mowers are of the rotary type. Rotary mower engines are all made to spin at 3,600 revs per minute when not under load. During cutting, the rpm drops to between 2800 and 3300. There is a simple wire-based device for measuring rpm on a running mower, which all mower specialists would own.The other speed linked with your question could be that concerning the velocity of the blade tip as it revolves. As the centre of the blade is spinning at 3600 rpm, an 18 inch blade tip will travel through the air at one speed a 21 inch at a faster speed and so on. Rotary mower blade bars are made up to a max of 24 inches.
Your push push mower goes 5-10 minutes and rattles loudly and dies?
loose blade, bent crankshaft.... remove sparkplug cap so mower won't start & spin blade at moderate speed with hand & if it stays level around whole mower deck the crank is not bent. youtube user (davidsfarm) would likely know whats wrong. the piston rod might be loose.
How many RPMs does a lawn mower turn?
Usually between 2800 and 3000 rpm. It could go faster, but blade tip speed becomes dangerously high past that.
How fast will the helicopters go in the future?
Not much faster. True helicopters are limited in airspeed. The helicopter blade can not fly faster than the speed of sound or it begins to flutter and even stall. The advancing blade has to go through the air faster than the retreating blade. The speed of the blade is the sum of the speed of the helicopter in forward flight plus(+) the rotational speed of the turning blades. If they can design a blade that will work at slow speeds and at speeds greater than Mach 1, then maybe they can build a faster helicopter.
Why does a lawn mower have a slow speed seems to you you would want to get your yard mowed as fast as possible?
Ground speed is matched to the engines ability to maintain speed while cutting grass. Smaller engines will bog down quicker and if the blade is not spinning at max speed the grass will not be cut properly
In a wind turbine - does increasing the blade length or decreasing the blade length increases the speed of the turbine?
Decreasing the blade length will increase the rotation speed, and thus the turbine speed ( for constant wind speed ).
How does the speed of sound in air compare to the speed of sound in solid?
The speed of sound in a solid is faster than the speed of sound in air.
How does the speed of sound in steel compare with the speed of sound in air?
The speed of sound in steel is faster than the speed of sound in air.
How fast does an apache helicopter's rotor blade spin?
292 RPMs, the speed of a propeller is limited by the speed of sound, rotor tip speed can't exceed it. The Apache rotors are 14.63m across. To see other specs. see link below.
How does the victa lawn mower work?
The Victa brand is a basic rotating blade lawnmower. The blade rotates at the same speed as the crankshaft of the engine The neat thing is that these mowers have a fan disk and a feature so that if the blade strikes something solid like a large rock it shouldn't destroy the engine. It will still cut off your toes though. And I bet it does a good job mulching.
