Recent content by Guillem_dlc

Thank you very much! With this hint I was able to do the exercise and I got what it says.

The current of the circuit would be: $$I=\dfrac{\varepsilon - \varepsilon'}{r+r'}=\dfrac{100-\varepsilon'}{1+r'}$$ But I do not understand the two methods of operation of the engine that the statement talks about: it rotates in normal regime and the engine is prevented from turning. What...

There was no diagram, no.

I've tried the following, but I don't get the correct result: The moment of inertia of the system with respect to the axis of rotation is: $$L=I\omega \Rightarrow I=\dfrac{L}{\omega}=\dfrac53 \, \textrm{kg m}^2$$ Then, $$I=I_1+I_2\Rightarrow I_2=I-I_1=\dfrac53 -7=-\dfrac{16}3\, \textrm{kg...

Okay, thank you very much

Do you know of any place where I can look up things about the momentum (linear momentum) in fluid mechanics? It's just that when I have a variable velocity and it has to be integrated, I don't quite understand how to do it. I have looked for videos and things and I can't find that they are...

Okay, so it would be fine then, wouldn't it?

Apart from finding this principal angle, it was requested that the ##x'## axis (that is, the ##x##-axis of the principal axis) should be the minimum and the ##y##-axis the maximum. That is to say, about the principal axes, that there is one that must have a maximum moment of inertia and another...

I was told that the ##x##-axis was going to be the minimum and with ##-45## I was left with the maximum. So I put that changing the angle to ##45## would leave the ##x## as the minimum.

##0,726## yes sorry I left out the ##2##. That would be fine then, wouldn't it?

Statement figure: My attempt at a solution: FIGURE 1 ##\rightarrow A=a^2## CG ##\rightarrow \overline{x}=-a/2, y=-a/2## $$\overline{Ix}_1=\dfrac{bh^3}{12}=\overline{Iy}_1=\dfrac{a^4}{12}$$ $$Ix_1=\overline{Ix}_1+\overline{y}^2A=\dfrac{a^4}{12}+\dfrac{a^4}{4}=\dfrac13 a^4\...

That's it, I got it, thank you!

How is the mass inertia product calculated? I have two examples and each one uses something different. Example 1: Example 2: moments and product of inertia of the cylinder

It isn't from a book.

Don't worry, no problem. I suppose that in an exercise, as soon as it is not an example, everything will be better placed.