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nasu's latest activity
N
nasu
reacted to
Steve4Physics's post
in the thread
A problem in this photoelectric effect experiment
with
Like
.
Hi. Welcome to PF! A few comments... But the value of 'position' is missing! Presumably position b? But your anwer to part (a) says...
Today, 5:40 AM
N
nasu
reacted to
haruspex's post
in the thread
Resistance of three-dimensional objects
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Like
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The only way I can see the question makes sense is if the face in the YZ plane is at one voltage and the sloping face on the right is at...
Friday, 5:37 AM
N
nasu
reacted to
Steve4Physics's post
in the thread
Simultaneous equation involving cos, sin
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Like
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Here’s an outline possible method. You have 2 equations of the form: ##a\cos A - b\cos B = p## and ##a\sin A - b\sin B = q## where...
Thursday, 4:57 PM
N
nasu
reacted to
Steve4Physics's post
in the thread
Simultaneous equation involving cos, sin
with
Like
.
For information, I think the second equation is incorrect and should be: ##50\sin\theta_3 - 45\sin\theta_4 = 32.58##
Thursday, 4:56 PM
N
nasu
reacted to
bob012345's post
in the thread
Resistance of three-dimensional objects
with
Like
.
I think the statement of the problem is problematic. Can you provide the exact wording of the problem and if it mentions where the...
Thursday, 2:58 PM
N
nasu
reacted to
berkeman's post
in the thread
Measuring Acceleration on a Bike using Phyphox
with
Like
.
OP -- sometimes when students try to come up with project ideas, those first ideas are fundamentally flawed. And in those cases, you...
Wednesday, 7:41 PM
N
nasu
reacted to
Ibix's post
in the thread
B
Why 186,282?
with
Like
.
It's a specific issue with ##c## because ##c## is inextricably entangled in the definition of distance and time. Changing it changes...
May 18, 2024
N
nasu
replied to the thread
Electric field & force due to charged insulating hemispherical shells
.
I did not say that a hemisphere can repel itself. It does not follow from what I wrote. I said "each piece of charge feels the field of...
May 8, 2024
N
nasu
replied to the thread
Electric field & force due to charged insulating hemispherical shells
.
A hemispherical shell does not have a constant field, not even considering only the field near the outher surface. So, there is no...
May 8, 2024
N
nasu
replied to the thread
Electric field & force due to charged insulating hemispherical shells
.
You don't find the field of one hemisphere but of a sphere. As long as the two pieces "almost touch" the field is of a sphere. For a...
May 8, 2024
N
nasu
replied to the thread
Electric field & force due to charged insulating hemispherical shells
.
You can find the formula for the field by using Gauss's law and the spherical symmetry.
May 8, 2024
N
nasu
replied to the thread
Sound Wave Diagram Help
.
If they are both dashed they are in phase. Half a period later the same point will be reached by two solid lines. The amplitude of the...
May 6, 2024
N
nasu
replied to the thread
Sound Wave Diagram Help
.
Coherent means that the phase difference is constant. Any constant. Your drawing seem to assume a phase difference of 180 degrees.
May 6, 2024
N
nasu
replied to the thread
Sound Wave Diagram Help
.
Are the speakers supposed to be out of phase?
May 6, 2024
N
nasu
replied to the thread
Power dissipated over 1 cycle of a AC source-free RLC series circuit?
.
Did you learn about RMS values of voltage and current? (this is for the OP)
May 3, 2024
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