Question: Penha and Chañaral are the same distance from the equator, and they are both near the ocean. Using the information in the map, how does the air temperature of Penha compare to the air temperature of Chañaral? Why? The air at Penha is: A. warmer than Chañaral. The winds push ocean water that turns and follows the coasts. A lot of energy is transferred from the ocean to the air at Penha. Only a little energy is transferred from the ocean to the air at Chañaral.

B. warmer than Chañaral. The winds push ocean water that turns and follows the coasts. Energy is transferred from the ocean to the air at Penha and energy is transferred from the air to the ocean at Chañaral.

C .warmer than Chañaral. Moving air with a lot of energy turns and follows the coast toward Penha. Moving air with only a little energy turns and follows the coast toward Chañaral.

D . the same as Chañaral. Both locations are the same distance from the equator. The winds push the ocean water, and it turns to follow the coast past both locations, so the same amount of energy is transferred to the air.

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.

A248-g piece of copper is dropped into 390 ml of water at 22.6 °c. the final temperature of the water was measured as 39.9 °c. calculate the initial temperature of the piece of copper. assume that all heat transfer occurs between the copper and the water. remember, the density of water is 1.0 g/m

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