According to the droppler effect, what appears to happen when a light source moves further away from an observer? (20pts) a. the electromagnetic waves appear more red in color. b. the waves compress and the frequency appears to increase. c. the electromagnetic waves appear more blue in color. d. the waves lengthen and frequency appears to increase.
Answers: 2
Physics, 21.06.2019 22:30, nolandh7940
The percent efficiency of a machine can never be 100% (or greater), because in the real world some energy is always converted into a. heat b. work c. input force d. output force
Answers: 1
Physics, 22.06.2019 03:00, iyanistacks50
Lymphocytes known as blastocysts make antibodies that fight infection. select the best answer from the choices provided t f
Answers: 2
Physics, 22.06.2019 05:10, zionnahl
Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.
Answers: 3
According to the droppler effect, what appears to happen when a light source moves further away from...
Mathematics, 17.09.2020 07:01
Mathematics, 17.09.2020 07:01
Mathematics, 17.09.2020 07:01
Mathematics, 17.09.2020 07:01
Mathematics, 17.09.2020 07:01
Mathematics, 17.09.2020 07:01
Mathematics, 17.09.2020 07:01
Mathematics, 17.09.2020 07:01
Mathematics, 17.09.2020 07:01
Mathematics, 17.09.2020 07:01