Recent content by phy_magic

I starter with difraction equations dsina=mλ, depending on rotation s d will and then a shoud also change but i still don t know how

what should be condition while calculating that value of amplitude , if we neglect dissipation of any kind, like oreder of magnitude od dl /l or σelastic limit

What should be good aproximation for amplitides? So I started with calculatin k for this wire from hooke law and young modul , and I use statement that "spring" folows hooke law only in some region of elongation. If i want oscilation to be sinusiondal is that condition that hooke law is correct...

On picture is part of solution and other is task.

Cone has acceleration because of precession and I can calculate it from angular velocity and perpendicular distance between CM and verical axis .if cone is on rotating turntable iz would just rotate around axis through CM. So CM s velocity will be zero. If it rolls without slipping than contatct...

What should I do about contatct point because it lies on slant of cone? Is cone motion precession of axis through vertex and normal to base?

How to join this two rotations to find friction? If it rolls without slipping , does it mean that all contact points have same magitude of velocity like CM ( it is weird to me because they are on diferent distance form top of cone but they all have sam angular velocitiy). Can I assume that...

Momentum conservation 2mv-mV=0 if up is positive direction. And conservation energy ( x and y are displacenemts of end masses and middle mass) 2gx+gy=v^2+ 0.5V^2 In equilibrium position tension will be equal to mg and from that i found angle, but them tension will contiunue to decrease but the...

In equillibrium x components shoud cancel and y component of resultant tension should be equal to mg. If i understand good, two end masse will keep going up and then on middle mass will start acting resultant force up. But is tension force constant at the magnitude ?

Is tension force in rope same all the time , does acceleration of middle weight change during time and why would middle weight go up (rise)? I saw questions like this , but I am little confused about this questions?