Two students start from opposite ends of an 8 km course walking towards each
other. one studen...
Physics, 02.12.2019 03:31 Renabelle6350
Two students start from opposite ends of an 8 km course walking towards each
other. one student is walking at a rate of 4 km/h and the other is walking at a
rate of 6 km/h. after how long will the students meet?
Answers: 1
Physics, 21.06.2019 19:00
Find the momentum for a 2.6-kg brick parachuting straight downward at a constant speed of 8.4 m/s .
Answers: 3
Physics, 21.06.2019 21:00
In the 1980's, congress authorized the u.s. department of energy to build the wipp facility in the chicuahuan desert in new mexico. what is the purpose of wipp?
Answers: 2
Physics, 21.06.2019 22:40
Which feature indicates that mars resides in the inner region of the solar system
Answers: 3
Physics, 21.06.2019 23:00
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
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