2. Jessie studies seaweed and she usually takes large amounts of samples. She would take
these samples from only one place and bring them back to the laboratory to run tests.
(a) Based on this information, predict what would occur if there were many separate teams
of scientists just like Jessie, who focused on the same area to collect seaweed samples.
(b) What alternative would you suggest to Jessie in order to avoid disturbing the stability of
the system in the place she collects her samples?

Follow these directions and answer the questions. 1. set up the ripple tank as in previous investigations. 2. bend the rubber tube to form a "concave mirror" and place in the ripple tank. the water level must be below the top of the hose. 3. generate a few straight pulses with the dowel and observe the reflected waves. do the waves focus (come together) upon reflection? can you locate the place where the waves meet? 4. touch the water surface where the waves converged. what happens to the reflected wave? 5. move your finger twice that distance from the hose (2f = c of c, center of the curvature) and touch the water again. does the image (the reflected wave) appear in the same location (c of c)? you may have to experiment before you find the exact location. sometimes it is hard to visualize with the ripple tank because the waves move so quickly. likewise, it is impossible to "see" light waves because they have such small wavelengths and move at the speed of light. however, both are examples of transverse waves and behave in the same way when a parallel wave fronts hit a curved surface.

Truck traveling west on the highway experiences an acceleration to the east. what could be the cause of this acceleration

When using the scientist method, which step comes last?