A steel ring with a 2.5000-in. inside diameter at 20.0^{\circ} \mathrm{C}20.0 ∘ C is to be warmed and slipped over a brass shaft with a 2.5020-in. outside diameter at 20.0^{\circ} \mathrm{C}20.0 ∘ C. (a) To what temperature should the ring be warmed?
(b) If the ring and the shaft together are cooled by some means such as liquid air, at what temperature will the ring just slip off the shaft?

Ways that industry and agriculture use physical properties to separate substances

Aweight lifter raises a 1600 n barbell to a height of 2.0 meters. how much work was done? w = fd a) 30 joules b) 3000 joules c) 320 joules d) 3200 joules

1. when conducting a test on what kind of music increases the growth of plants, all of the following would fail to meet to fair test standard except (1 point) using different kinds of plants. giving some plants more water than others. exposing the plants to different types of music. using nutrient-rich soil for one and lesser soil for others. 2. engineering uses scientific thinking to solve real-world problems. (1 point) true false 3. what does it mean to test a hypothesis? (1 point) pass a quiz on other scientists’ results analyze only the results from scientific sources not make assumptions about how an experiment will turn out see if the results of an experiment are what the scientist predicted