nasu's latest activity
-
Nnasu replied to the thread Help me to clear my doubt about a problem of Classical Mechanics (Car and Bicycle).What's with the bicycle? Is there a part (b)?
-
Nnasu reacted to Baluncore's post in the thread I Free fall of person in a sled to direct horizontal motion by atmospheric resistance with
Like.
Yes, but what is required to quickly convert vertical height into horizontal velocity, is the second half of an Immelmann turn... -
NI see the wording issue a little differently. In usual terminology , an "axis" is not a physical object, any more than is a line or...
-
Nnasu replied to the thread I Free fall of person in a sled to direct horizontal motion by atmospheric resistance.In a sled??😁😊
-
Nnasu reacted to Ibix's post in the thread I Understanding the historical shift away from absolute simultaneity with Like.
For me, the simplest argument is to propose that if global inertial frames exist at all then the transformation between them must map...
-
Nnasu replied to the thread I Free fall of person in a sled to direct horizontal motion by atmospheric resistance.Isn't the glide ratio dependent on the horizontal velocity? The OP seems to assume that there is no initial horizontal velocity, doesn't it?
-
Nnasu reacted to Dale's post in the thread B What reference frame is used for the velocity v in the Lorentz transformation? with Like.
Yes. ##2020-2015## is ##5## years and ##2025-2015## is ##10## years. So the mathematical question is, do there exist two timelike...
-
NYeah, nothing more annoying than the student who can't be bothered to even try. I do, however, generally find that most of my STEM...
-
NWhich one? Besides, I don't think that every single mathematic manipulation has physical meaning. Again, what's the physical meaning of...
-
Nnasu reacted to TensorCalculus's post in the thread I want to help Physics education. What should I do? with Like.
Okay, so this is something I have been thinking about for a long time, because it's something I am passionate about and something that...
-
Nnasu replied to the thread B Ultrasonic wave and regular sound wave.Yes, unless some context is missing. Ultrasound is just a name related to human hearing specifics. The formula without gamma was...
-
NThe wording is very strange. What is the relevance of the charge being "instantly" negated, or of the system being "released". From...
-
Nnasu reacted to Ibix's post in the thread I Does destructive interference of an electromagnetic wave create negative energy? with Like.
Does it? How do you know? The same issues arise with all EM waves. The theory says that they all respect conservation of energy but...
-
Nnasu reacted to A.T.'s post in the thread B Acceleration of an Object Moving in Circular Path with Like.
Then maybe you should try to understand how cars accelerate in a straight line, before going to circular paths.
-
Nnasu reacted to weirdoguy's post in the thread I Does kinetic friction propel a person walking forward? with Like.
Harmful for whom? As a teacher with 17 years of experience, I wholeheartedly disagree. In the end these are only labels, yes, but the...