Auniform disk with radius 0.950 m and mass 30.0 kg rotates in a horizontal plane on a frictionless vertical axle that passes through the center of the disk. the angle through which the disk has turned varies with time according to θ(t)=(1.10rad/s)t+(6.30rad/s2)t2.

1) what three conditions must be present for minerals to form through natural processes? 2) why are minerals considered inorganic substances? 3) how do oxides differ from other minerals that contain oxygen atoms? 4) how is a sulfide different from a sulfate? what makes native elements unique?