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pbnj's latest activity
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pbnj
replied to the thread
How Do You Correctly Cancel Angular Momentum in Physics Problems?
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It's for a Coursera course, and it tells me it's incorrect. I've tried incrementing/decrementing my answer by 5 a few times, I tried...
Mar 30, 2024
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pbnj
posted the thread
How Do You Correctly Cancel Angular Momentum in Physics Problems?
in
Introductory Physics Homework Help
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First, we calculate the maximum height using the first equation, noting that at maximum height, the velocity is purely horizontal with...
Mar 29, 2024
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pbnj
replied to the thread
Angular acceleration of plank hanging off edge with a weight
.
I've been using lean4 as my calculator, here's my source code: def g := 9.81 def m := 30.0 def M := 70.0 def L := 6.0 def h := 2.0 def...
Feb 21, 2024
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pbnj
replied to the thread
Angular acceleration of plank hanging off edge with a weight
.
I figure since we're only given the length and mass of the plank, it should be ##\frac{1}{12}mL^2##. Then I should use the parallel-axis...
Feb 20, 2024
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pbnj
posted the thread
Angular acceleration of plank hanging off edge with a weight
in
Introductory Physics Homework Help
.
Supposing L = 6m, m = 30kg, M = 70kg, h = 2m. Also set the origin at the leftmost edge of the plank. Free body diagram description: The...
Feb 19, 2024
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