Lnewqban's latest activity
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Lnewqban reacted to A.T.'s post in the thread High School Why higher speeds need more power if the backward force is the same? with
Like.
Do you understand why a static force doesn't require any energy? Lean a stick against a wall, and it can stay there exerting a force... -
The non-slipping condition is simply required to enable the cone to rotate around the vertical axis. Friction provides the centripetal...
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Lnewqban replied to the thread Cone on horizontal surface.In what direction would the cone slip if suddenly it reaches an area of the horizontal surface having no friction?
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Possibly something like this... A solid right circular cone of uniform density has mass m, height h and a base of radius r. ‘V’ is the...
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Lnewqban replied to the thread NTSB report on crash of UPS Flight 2976 (MD-11F).Excellent summary! It seems that the internal combustion in the tail engine was affected or suppressed by the flames coming from the...
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Lnewqban reacted to Astronuc's post in the thread NTSB report on crash of UPS Flight 2976 (MD-11F) with Like.
https://en.wikipedia.org/wiki/UPS_Airlines_Flight_2976#Airline Importantly, 21000/28000 = 0.75 ...
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Lnewqban reacted to jack action's post in the thread High School Why higher speeds need more power if the backward force is the same? with Like.
Say, your horse needs to eat 1 kg of hay (that's where it gets its energy) every 60 m it pulls the 1000 N weight. If it goes at 1 m/s...
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Lnewqban reacted to gen x's post in the thread High School Why higher speeds need more power if the backward force is the same? with Like.
Imagine if car travel in different medium so at 100km/ and 200km/h is same drag force at car. It turns out that car that travel at...
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Lnewqban replied to the thread High School Why higher speeds need more power if the backward force is the same?.One thing is work performed by the horse, and a different one is the time in which that work is done. Less time requires greater power...
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Thank you for your response.. it really helped me focus on a point I had overlooked: that the same forces causing the moment are also...
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Lnewqban replied to the thread Bending Stress and Shear Stress.Welcome! The shear load (think of a scissor trying to cut a sheet of paper) is induced by the same total force that induces the moment...
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Lnewqban reacted to Hornbein's post in the thread Impractical 3D gears model for robotics with Like.
https://newatlas.com/technology/abenics-versatile-active-ball-joint-gear/ They say this could be used as a shoulder joint for robots...
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Lnewqban replied to the thread 2 pulleys 3 masses problems.Welcome! Consider that the y component acting on the middle mass is formed by the addition of two forces. Each end mass should produce...
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Any information we have about those is protected by PF's privacy policy. We would need to get the family's permission to discuss any of...
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I have some solemn news to report. Many in the community had been wondering where the prolific @Vanadium 50 has been. V50 hasn't posted...
