russ_watters's latest activity
-
russ_watters reacted to Baluncore's post in the thread High School Lunar Orbit Issues & Lunar Clocks with
Like.
The clock designer appears to have used the sidereal month, not the synodic month, in their design calculations. Sidereal month =... -
To Serve Man....."its a cookbook!"
-
This is just a train wreck of an answer from Gemini: Me: Who plays Jay's dad in Jay Kelly (2025)? Gemini: In the new movie Jay Kelly...
-
The Iron Law of the USA : Sooner or later everything becomes a vehicle for advertising.
-
russ_watters reacted to Averagesupernova's post in the thread Electric power distribution from powerplant to homes with Like.
The OP isn't the only one mis-applying ohms law. The resistance R in the above formula is the resistance of the wires where the loss we...
-
russ_watters reacted to Guineafowl's post in the thread Electric power distribution from powerplant to homes with Like.
Cogent, yes, but overcomplicated for a beginner. Beware the curse of knowledge.
-
russ_watters reacted to Baluncore's post in the thread Electric power distribution from powerplant to homes with Like.
The OP has not been back since posting the question.
-
russ_watters reacted to renormalize's post in the thread Electric power distribution from powerplant to homes with Like.
Sure, but the OP specifically asked: That's the basic question I aimed to answer in my post #9.
-
russ_watters replied to the thread New to this :).We have a guide and thread for that: https://www.physicsforums.com/threads/planning-to-buy-a-first-telescope-comments.391086/ Welcome...
-
Top Men!
-
russ_watters reacted to A.T.'s post in the thread Undergrad Reference frames, center of rotation, etc with Like.
You can start with this video, which shows that any combination of rotation & translation can be expressed by only a rotation (around a...
-
russ_watters reacted to Dale's post in the thread Undergrad Reference frames, center of rotation, etc with Like.
Yes, this is all correct. This is not correct. The CoM moves along a straight line in any case, regardless of our choice of center of...
-
russ_watters reacted to gen x's post in the thread Undergrad Reference frames, center of rotation, etc with Like.
My assumption is that the desk is frictionless. Frame fixed to the table: After the strike, the center of mass (CoM) of the ruler will...
-
russ_watters replied to the thread Undergrad Reference frames, center of rotation, etc.Consider a simple case*: you have an object like a ruler, sitting on a desk. You strike one end horizontally, perpendicular to it...
-
russ_watters reacted to Dale's post in the thread Undergrad Reference frames, center of rotation, etc with Like.
The center of rotation certainly can translate. Did you not see the plots that I posted? They show what it means. You can pick any point...
