1. a baseball is thrown straight upward. describe the direction and magnitude of the velocity, force of gravity, and the varying air resistance force as the ball rises. explain whether the net force increases, decreases, or is unaffected by the air resistance force. repeat for the part of the motion when the ball is at maximum height and the part of the motion when the ball is moving downward

According to the tide table below what time of day will the highest tide occur?

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.

Waves that cause the most damage during an earthquake are a. surface waves c. s waves b. p waves d. ocean waves