A1.0 kg piece of copper with a specific heat of ccu=390j/(kg⋅k) is placed in 1.0 kg of water with a specific heat of cw=4190j/(kg⋅k). the copper and water are initially at different temperatures. after a sufficiently long time, the copper and water come to a final equilibrium temperature. part a which of the following statements is correct concerning the temperature changes of both substances? (ignore the signs of the temperature changes in your answer.) which of the following statements is correct concerning the temperature changes of both substances? (ignore the signs of the temperature changes in your answer.) the temperature change of the copper is equal to the temperature change of the water. the temperature change of the water is greater than the temperature change of the copper. the temperature change of the copper is greater than the temperature change of the water.

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.

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Why don't you see your reflection in water with waves or repples