Salmon often jump waterfalls to reach their
breeding grounds.
starting downstream, 1.87 m away from a
waterfall 0.37 m in height, at what minimum
speed must a salmon jumping at an angle of
32.7
◦
leave the water to continue upstream?
the acceleration due to gravity is 9.81 m/s
2
.
answer in units of m/s.

When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative

On your wedding day your lover gives you a gold ring of mass 3.67 g. 48 years later its mass is 3.44 g. on the average how many atoms were abrated from the ring during each second of your marriage? the atomic mass of gold is 197 u. don't enter units

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.