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Lnewqban's latest activity
Lnewqban
reacted to
songoku's post
in the thread
Correct statement about a reservoir with an outlet pipe
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When te straw is lifted, water level inside the straw will decrease causing the volume occupied by the air increases ans reducing the...
Today, 2:18 AM
Lnewqban
replied to the thread
B
Basic thermal energy transfer physics: Insulation value in open airways vs sealed airways
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Welcome @dacad Please, see: https://www.engineeringtoolbox.com/convective-heat-transfer-d_430.html
Yesterday, 4:51 PM
Lnewqban
replied to the thread
Struggling to make relation between elastic force and height
.
The pulling force of each person and the tension force along the whole nylon string must be the same for each instant. In this specific...
Yesterday, 3:50 PM
Lnewqban
replied to the thread
2:1 Pulley Question
.
Sorry, I am unable to understand your sketch above. Could you show us a more realistic diagram, please?
Thursday, 6:08 PM
Lnewqban
reacted to
hutchphd's post
in the thread
I
Trigonometry problem of interest
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There is also a lovely theorem by Ptolemy that deals with cyclic quadrilaterals. I think that will work......not an intuitive result...
Thursday, 5:59 PM
Lnewqban
reacted to
jbriggs444's post
in the thread
Correct statement about siphon used to empty water tank
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At room temperature the saturated vapor pressure of water is about 3% of an atmosphere. Whether this counts as "approximately zero"...
Tuesday, 12:53 PM
Lnewqban
replied to the thread
2:1 Pulley Question
.
In the first case, mass B moves at double the speed of mass A. In the second case, mass B moves at half the speed of mass A.
Oct 20, 2025
Lnewqban
reacted to
russ_watters's post
in the thread
A practical way to vaporize fuel for high MPG?
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Adding to this: a Mustang Mach-E gets about 3 mi / kWh, almost exactly equivalent to 100mpg, or 12 hp at 80% efficiency. It's in the...
Oct 20, 2025
Lnewqban
reacted to
jack action's post
in the thread
A practical way to vaporize fuel for high MPG?
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In an ideal reciprocating engine, any thermodynamic loss found in the compression stroke is compensated by the gain in the following...
Oct 20, 2025
Lnewqban
reacted to
kuruman's post
in the thread
I
Trigonometry problem of interest
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Here is the derivation mentioned in post #30. Refer to the figure on the right. It shows half the hexagon as a quadrilateral inscribed...
Oct 20, 2025
Lnewqban
replied to the thread
A
Is 'Velocity of Transport' a Recognized Term in English Mechanics Literature?
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Isn't the relative velocity equal to zero in this case in which "point A is attached rigidly to the moving frame" respect to which its...
Oct 19, 2025
Lnewqban
replied to the thread
Static Mechanics: Aircraft Nosewheel Linkage Torque
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Consider the external force and moment acting on the whole mechanism first. One is the represented M, which is necessary to raise the...
Oct 19, 2025
Lnewqban
reacted to
Borg's post
in the thread
Medical
New Alzheimer's Treatment Clears Plaques From Brains of Mice Within Hours
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I've been reading a bunch of articles in this month's Scientific American on Alzheimer's and ran across this article in a web feed that...
Oct 19, 2025
Lnewqban
reacted to
Charles Link's post
in the thread
I
Trigonometry problem of interest
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I've been trying to find others, but so far only 2,7, and 11 along with 1, 13, and 22 plus multiples thereof. The combinations that...
Oct 19, 2025
Lnewqban
reacted to
Charles Link's post
in the thread
I
Trigonometry problem of interest
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@Lnewqban I didn't know the name of it, but Thales' theorem was one of a couple of things I was trying to apply to simplify things. It...
Oct 19, 2025
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