Dust processing in debris disks - Max-Planck
... Convert sub-mm fluxes to mass in mm-cm-sized dust using opacity 1.7cm2/g: Mdust = F850 d2 / Bν(T) κν Debris disks have <0.1 times less mass in mmsized dust than protoplanetary disks, and there is a sharp transition at ~10Myr But the mass needed in km-sized objects to sustain debris disks means that ...
... Convert sub-mm fluxes to mass in mm-cm-sized dust using opacity 1.7cm2/g: Mdust = F850 d2 / Bν(T) κν Debris disks have <0.1 times less mass in mmsized dust than protoplanetary disks, and there is a sharp transition at ~10Myr But the mass needed in km-sized objects to sustain debris disks means that ...
Energy and Momentum of Rotational Motion
... • The angular momentum is directed along the axis of the wheel and so, ideally, there is no external torque on the wheel and it would remain in the same direction and never fall over • However, in reality there is some small external torque and so the wheel will eventually tip over • This torque is ...
... • The angular momentum is directed along the axis of the wheel and so, ideally, there is no external torque on the wheel and it would remain in the same direction and never fall over • However, in reality there is some small external torque and so the wheel will eventually tip over • This torque is ...
![arXiv:0905.3008v1 [astro-ph.EP] 19 May 2009](http://s1.studyres.com/store/data/017089867_1-59d3a66da8f73e76d7a42b1bdf6b26f3-300x300.png)
... • The key to explaining pulsars turned out to be a rotating neutron star, not a pulsating one – By conservation of angular momentum, an object as big as the Sun with a one-month rotation period will rotate more than 1000 times a second if squeezed down to the size of a neutron star – Such a size red ...
Conservation of Momentum AIM To determine the momentum of a
... accelerated by the mass hanging on the string. When it reaches the trolley m 2 it collides and the two trolleys will continue in the same direction. The ticker timer provides us with a record of the motion of the trolley before and after the collision. The masses of the two trolleys should be measur ...
... accelerated by the mass hanging on the string. When it reaches the trolley m 2 it collides and the two trolleys will continue in the same direction. The ticker timer provides us with a record of the motion of the trolley before and after the collision. The masses of the two trolleys should be measur ...
