Physics, 03.04.2020 03:50, camilacarrielh15
In an experiment to measure the index of refraction of human skin, it was found that if a beam of unpolarixed light was shone on a skin sample from air at an incident angle of 54.7 degrees, the reflected light was completely polarized. What is the index of refraction of this skin sample?
Answers: 1
Physics, 21.06.2019 17:00, 2sally2
We all use gps today, even if we don't drive yet. i bet you have been in the car with a parent and they have asked you to get out your phone to find a specific location. in your car, on the phone, you are using a very sophisticated technology. gps satellites circle the earth twice a day in a very precise orbit and transmit signal information to earth. gps receivers take this information and use trilateration to calculate the user's exact location. essentially, the gps receiver compares the time a signal was transmitted by a satellite with the time it was received. the time difference tells the gps receiver how far away the satellite is. now, with distance measurements from a few more satellites, the receiver can determine the user's position and display it on the unit's electronic map. what type of signal is utilized by the gps satellite?
Answers: 2
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 20:40, ashleyd9243
In addition to gravity, what is the other predominant force that affects the motion of a pendulum?
Answers: 1
In an experiment to measure the index of refraction of human skin, it was found that if a beam of un...
Chemistry, 05.03.2020 09:05