Physics, 05.02.2021 02:20 ritchieandrew249
Two cars approach each other from opposite directions each with a velocity of 54 km/hr. One of the cars emits a note of frequency 480 Hz. What will be the approximate frequency heard in the other car before they pass each other? The speed of sound in this situation is 340 m/sec.
Answers: 1
Physics, 21.06.2019 23:00, alanisalvarez2000
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.
Answers: 1
Physics, 22.06.2019 23:00, ramjand3062
Which of the following will cause an induced current in a coil of wire? the constant field of the earth passing through the coil a magnet resting near the coil a magnet being moved into or out of the coil a wire carrying a constant current near the coil
Answers: 3
Physics, 23.06.2019 04:50, mexprencss
By examining a wave’s pattern after it interacts with a barrier or gap, measurements can be made to better understand certain wave phenomena. what is a broad question you can answer by doing this experiment?
Answers: 2
Two cars approach each other from opposite directions each with a velocity of 54 km/hr. One of the c...