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songoku's latest activity
S
songoku
reacted to
nasu's post
in the thread
Relative electrical energy consumption for different light bulb color temperatures
with
Like
.
The energy consumption is given by the power rating of the bulb. If it's an incandescent bulb, the power of the light emitted is just a...
Today, 9:15 AM
S
songoku
replied to the thread
Energy of springs connected in series and parallel
.
I understand. Thank you very much haruspex, Orodruin, DrBanana, Steve4Physics
Yesterday, 8:35 AM
S
songoku
reacted to
Orodruin's post
in the thread
Energy of springs connected in series and parallel
with
Like
.
Yes, that is correct. Now compare that free body diagram to the figures in your original post. (Just turn them 90 degrees)
Yesterday, 8:35 AM
S
songoku
reacted to
mjc123's post
in the thread
Relative electrical energy consumption for different light bulb color temperatures
with
Like
.
The question says the intensity is the same for each colour. Do you know the definition of "intensity"?
Yesterday, 8:34 AM
S
songoku
replied to the thread
Relative electrical energy consumption for different light bulb color temperatures
.
Intensity is power / area, so it means the power is the same and the energy consumption will be the same. Thank you very much mjc123
Yesterday, 8:33 AM
S
songoku
posted the thread
Relative electrical energy consumption for different light bulb color temperatures
in
Introductory Physics Homework Help
.
I am not sure what the context of the question is. I am thinking this question is about light bulb emitting different colour at...
Yesterday, 7:55 AM
S
songoku
reacted to
DrBanana's post
in the thread
Energy of springs connected in series and parallel
with
Like
.
Thanks. Concerning the original problem, the correct answer is , right?
Yesterday, 7:40 AM
S
songoku
reacted to
Orodruin's post
in the thread
Energy of springs connected in series and parallel
with
Like
.
You were not given the spring constant nor the extension of the spring. No. That an object is massless does not mean no forces can act...
Yesterday, 7:40 AM
S
songoku
reacted to
Steve4Physics's post
in the thread
Energy of springs connected in series and parallel
with
Like
.
Hi @DrBanana. There are some mistakes in your answers! Maybe you’d like to work through the following and then try answering @Orodruin...
Yesterday, 7:40 AM
S
songoku
replied to the thread
Energy of springs connected in series and parallel
.
mg mg should be mg too because the spring is in equilibrium There are 2 forces: downwards from the mass and upwards from the ceiling...
Yesterday, 7:40 AM
S
songoku
reacted to
Orodruin's post
in the thread
Energy of springs connected in series and parallel
with
Like
.
It is even simpler than that. Consider a mass ##m## hanging vertically from a fixed ceiling by means of an ideal spring. This is kind...
Yesterday, 7:34 AM
S
songoku
reacted to
haruspex's post
in the thread
Energy of springs connected in series and parallel
with
Like
.
Tension is not a force, exactly, but a pair of equal and opposite forces. Likewise compression. If a static rope is pulled by a force F...
Yesterday, 7:34 AM
S
songoku
reacted to
Orodruin's post
in the thread
Energy of springs connected in series and parallel
with
Like
.
The problem pretty clearly states that force is F, not 2F. My hint for this problem would be to consider the forces on each constituent...
Yesterday, 7:34 AM
S
songoku
reacted to
haruspex's post
in the thread
Energy of springs connected in series and parallel
with
Like
.
How do you arrive at that?
Yesterday, 7:34 AM
S
songoku
replied to the thread
Energy of springs connected in series and parallel
.
I thought since there are two F in the diagrams, it means the force acting on the system is 2F. But it seems I misunderstood the question
Monday, 11:42 PM
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