Recent content by bahtiyar

thank you the video on the page clearly shows which harmonic occurs depend on the speed of air that we blow. I can't reach the article it requires purchase the article but video was enough for me

thank you guys for making it clear what are your suggestions and answers

we consider this friction force turn to other direction thus we add it as a centrifugal force.

We are teaching it without deep down, we treat it as a scalar. Are the rotational motion of bike around the curve and angular momentum of bike cause the conflict. How we can explain the case with exact scientific consistency. I'm looking an explanation for me not for my students. I don't have...

isn't that about the speed of sound, if it is right how it much harder blowing effect on it. What is the logic here can anyone explain?

my colleague says there is no such a term as angular distance, so "angular displacement for one complete cycle" corresponds 4 times amplitude. Do you have any reference, a link or textbook that use these terms?

I'm a physics teacher and we are not teaching the centrifugal force. So we are always using inertial ref. frame. For the inertial ref. frame it seems in rotational equilibrium.

I saw a question "If you blow across the open end of a soda bottle and produce a tone of 250 Hz, what will be the frequency of the next harmonic heard if you blow much harder?" the answer is 750 Hz but I'm curious about "if you blow much harder" part, is it really depends on how much harder...

hi, we are a few non-native English speaker physics teacher and we wrote some questions for an assessment book but we can't be sure about this two similar question. a) are they accurate for rules of English, are we use correct terms is there a necessary change? b) are they accurate for rules of...

let's analyse for both reference frame (I'm not good about the reference frame)

sorry guys I've been busy these days I couldn't look the topic. Thank you all but we are calculating the torque from the center of mass and we found it as zero. For the rotational equilibrium, net external torque must be zero regardless the axis that you choose. So two possible explanation; 1...

https://www.physicsforums.com/threads/bike-motorcycle-leaning-in-a-curve-what-happens-to-the-normal-force-n.649369/#post-4144398 I found an answer here but still, there is a problem. If it's in rotational equilibrium net torque must be zero regardless the axis point that you choose. For this...

The net force on the bike equal to centripetal force so there is no translational equilibrium for any reference frame. But there must be a rotational equilibrium for every reference frame because the bike doesn't tip over. I think it is not about the reference frame. When I use the friction...

Hi the question is about bicycle and motorcycle dynamics How can we explain the motorcycle leaning in turn without using the centrifugal force term? You know the correct term for rotational motion is the centripetal force and it is toward the centre. I have a problem with rotational equilibrium...

thanks everybody