You are given a sample of an unknown mineral. You determine that the mineral’s streak is white and its specific gravity is 2.8. Is the mineral most likely to be a metallic mineral or a nonmetallic mineral?

This question is worth 54 points ! rock falls from a ledge to the ground what energy conversion occurs during this process a potential to kinetic b kinetic to potential c thermal to mechanical d chemical to mechanical

The 5-kg cylinder is initially at rest when it is placed in contact with the wall b and the rotor at a. if the rotor always maintains a constant clockwise angular velocity v = 6 rad> s, determine the initial angular acceleration of the cylinder. the coefficient of kinetic friction at the contacting surfaces b and c is mk = 0.2.

What component of earth’s atmosphere exists entirely as a result of photosynthesis?