A graduated cylinder has 22 mL of water placed in it. An irregularly shaped rock is then placed in the graduated cylinder and the volume of the rock and water in the
graduated cylinder now reads 30 ml. The mass of the rock is 32 g. Find the density
of the rock.

Which is special about a dc circuit ? a. it has both series and parallel components b. it has only series or only parallel components c. charge moves in a single direction d. charge moves back and forth quickly

Explain the difference in reactivity of the elements based on their electron configurations.

Roger pushes a box on a 30° incline. if he applies a force of 60 newtons parallel to the incline and displaces the box 10 meters along the incline, how much work will he do on the box? a. 5.2 × 102 joules b. 6.0 × 102 joules c. -5.2 × 102 joules d. -6.0 × 102 joules