Water waves having parallel crests 4.9 cm apart pass through two openings 7.9 cm apart in a board. At a point 3.0 m beyond the board, at what angle(s) O (0° < < 90°) relative to the "straight-through" direction would
there be little or no wave action?

What is the orbital period of a spacecraft in a low orbit near the surface of mars? the radius of mars is 3.4×106m.

When using the scientist method, which step comes last?

4. now look at the green lines you created by connecting the three boiling point data points and the three melting point data points. for each of these lines, describe any trends you see. 5. locate the elements on your periodic table that you circled in green on your graph. what term or description would you use to identify these elements with respect to the periodic table? 7. using the room temperature line (orange line) and your periodic table, make lists that identify the state of matter (gas, liquid, or solid) in which each element you plotted exists at room temperature. explain your answers.