A potter’s wheel with a moment of inertia of 2.5 x 10-2 kg m2 is spinning at 33.3 rpm. A 0.25 kg lump of clay is dropped vertically onto the potter’s wheel, 0.20 m from the center of rotation. Find the angular speed of the system after the clay is added.

a and c

c is 100% but i am confused in a

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.

the five characteristics of adolescence are biological growth and development, and undefined status, increased decision making, increased pressure and the search of self.