jbriggs444's latest activity
-
I know what you're trying to say but the figure doesn't look right. I assume that the vertical scale is attached to the horizontal... -
jbriggs444 reacted to DaveC426913's post in the thread Is this an oversimplification? (treating a lens as a set of prisms) with
Like.
Sure. It's a simplification. Three is less than infinity. Is it an oversimplification? Only if it is too simple to teach the desired... -
Because it's an error made in virtually every introductory physics textbook and classroom. The so-called Treaty of the Meter was signed...
-
jbriggs444 replied to the thread B Simple mass/scale puzzle.I share the same sentiment as @Mister T. Because it is not always an error. We (as scientists and physics students) need to avoid the...
-
True in the world of physics and engineering, which is indeed where we are right now as we participate in this forum. But by...
-
The ##\mathrm{SI}## unit of force is the newton. Weight is defined in physics and engineering differently than in international treaty...
-
There are so many posts in this thread, I apologize if I am repeating things. There are two forces in this problem. There is also 1...
-
jbriggs444 replied to the thread B Simple mass/scale puzzle.I've seen that misconception in the wild. It is the "transitive property of forces". If you pull on an object with a force of 50 N then...
-
Perhaps I've interacted with a lower caliber of student. But in my experience they don't demand or even ask for a formal solution, and...
-
I think that the allure of this problem is based on the tendency of people to draw an incorrect inference from a very familiar...
-
And I think this is exactly what confuses some of them. Especially those who demand a formal derivation from some fundamental...
-
jbriggs444 reacted to Mark44's post in the thread I Problem in understanding instantaneous velocity with
Skeptical.
The speedometers on my old bikes are strictly analogue, and as far as I know, aren't damped. -
If you tried to use that device in a place where the free fall acceleration were significantly different, you would find that it does...
-
jbriggs444 replied to the thread B Simple mass/scale puzzle.That depends on how you define the spring constant. You could define it as ##\frac{F}{x}## or you could define it as ##\frac{T}{x}##...
-
I thought my wording was clear that the 'Equilibrium condition' is not N3. Each pair of the chain of objects (including adjacent fibres...
