A thin stick of mass 0.5 kg and length L = 0.4 m is attached to the rim of a metal disk of mass M = 5.0 kg and radius R = 0.3 m. The stick is free to rotate around a horizontal axis through its other end (see the following figure). (a) If the combination is released with the stick horizontal, what is the speed (in m/s) of the center of the disk when the stick is vertical?
(b) What is the acceleration (in m/s2) of the center of the disk at the instant the stick is released? (Enter the magnitude.)
(c) What is the acceleration (in m/s2) of the center of the disk at the instant the stick passes through the vertical?

the entire statement is true and correct.  

there's no diagram, nothing is illustrated, and no question is asked.

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.

hi,

what occurs during a solar eclipse?

there are small tides across earth.

the moon is between earth and the sun.

p.s. im not sure if the first answer is correct because during a solar ecliphse there are spring tides and i dont know if they are the same.