(b) It was initially stated that the angular momentum of (a) is conserved, and that this allows for some calculations. Why are the angular momentums of a) and b) the same? I mean, the speed is different.
(3 votes)
Loading...Hello, I have a question about the polarity of the Seebeck effect. One of them is this video: https://www.youtube.com/watch?v=kj13HT2hMig At 6:15, it's explained that the electrons start moving clockwise. The technical direction of the current would therefore be reversed. I can also follow the explanation. On this page – Figure 2 – the technical current…
Hello dear people. First of all: I'm not the kind of person who gets worked up about this. I sleep next to a Wi-Fi router. However, because I've noticed that wireless charging devices drastically reduce (interfere with) LTE / 5G speeds, I'm wondering whether wireless charging isn't significantly more harmful than traditional radio transmitters. There…
Hello, I need a little help with a time-delay diagram. I have to specify delta T and delta S, but I've forgotten the units. What are they in again? And what unit does V (speed) have in this case? The diagram is s in m and t in s Thank you in advance
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The task is: A cyclist starts at 7:00 a.m. in town A and rides at an average speed of 20 km/h along the bike path along the main road to B. At 9:00 a.m., a car departs from the same point in the same direction. It has an average speed of 80 km/h. Calculate the…
because the rotational pulse in a closed system always remains the same. is a conservation size.
I think that the moment of inertia between homogenous and inhomogeneous mass distribution changes – the moment of rotation in a closed system is, as is known, a preservation variable. Thus, if the water accumulates on the walls further away from the axis of rotation, the moment of inertia should increase and decrease the angular velocity with a constant rotational pulse. This behaves just as with an glacial runner who turns a pirouette: with angled arms the speed of rotation increases, with extended arms it decreases…