Imagine that you’re observing a collision. which action would allow you to determine whether the collision is inelastic? a. measure the force of impact. b. observe whether the colliding objects change their shape. c. measure the acceleration of the colliding objects. d. measure the mass of the colliding objects.

Use the table to answer question 22 23 and 24.

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.

Need asap ‼️ 20 pts which gravitational force field diagram is drawn correctly? (answers in pictures below)