Lnewqban's latest activity
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Lnewqban replied to the thread B A scenario of non-uniform circular motion.The centrifugal effect should induce a traction effect on the road. Therefore, increasing the rotational velocity of the object should... -
Lnewqban reacted to demej00's post in the thread Calculate minimum RPM to self-balance a CMG on two legs with
Like.
I have not had it at 1500 rpm, I have had it up to 800 rpm and yeah it was jumping around quite a bit even though I had roughly balanced... -
Lnewqban replied to the thread HP Required to move a robot 10meters at 1.5m/sec.Perfectly horizontal movement? Geared rails? How much acceleration you need? How will the mass be stopped?
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Lnewqban replied to the thread Mechanics homework confusion.Welcome! I believe that you can consider a triangle of sides 1.25-2-1.25, assuming that the two strings coincide with the center of mass...
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Lnewqban reacted to haruspex's post in the thread Rolling without slipping on a curved surface with Like.
No, ##\Delta s## is greater than that because of the curved surface. Consider e.g. R only marginally greater than r.
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Lnewqban reacted to haruspex's post in the thread Rolling without slipping on a curved surface with Like.
Ok, here’s what is wrong with the AI solution. First, "the CM acceleration is ##(R-r)\ddot\theta##, not ##a##” is wrong in that it is...
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Lnewqban replied to the thread Calculate minimum RPM to self-balance a CMG on two legs.Welcome! Are you sure about your bicycle tire and wheel being perfectly balanced and able to remain intact at the recommended 1500 rpm...
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Lnewqban reacted to Klystron's post in the thread RIP Jane Goodall (91), primatologist and conservationist with Like.
I have a Jane Goodall anecdote that I think about often during these strange days. While visiting at Stanford University in Palo Alto...
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Lnewqban reacted to Astronuc's post in the thread Coccidioidomycosis, deadly fungal disease, no effective cure with Like.
https://grist.org/health/valley-fever-arizona-fungus-climate-change/
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Lnewqban replied to the thread 2 wires attached to another wire attached to a block.Welcome! :cool: When your fingers are holding a suspended bad of groceries, do they feel increased or reduced weight of the...
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Lnewqban reacted to haruspex's post in the thread 2 wires attached to another wire attached to a block with Like.
The other cords are not attached to the weight. Each body only "knows" about the forces that act directly on it. The suspended body is...
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Lnewqban replied to the thread Why can I neglect angular momentum due to precession here?.Could you explain that idea a little more for me? How would you define precession in this case?
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Lnewqban reacted to Baluncore's post in the thread Question about bonding ground and neutral with Like.
Fuses protect conductors from fault overcurrents, that might melt the insulation or the wires. The ground path is bonded to neutral...
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Lnewqban reacted to hutchphd's post in the thread Question about bonding ground and neutral with Like.
The neutral current path offers a very low resistance path for the current, and so most of the power follows this path. The local...
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Don't assume that EEs know much about this subject. It's a broad field and most don't ever deal with power distribution. Even if they...
