Physics, 21.02.2020 05:13 DarcieMATHlin6217
In the laboratory, a spectral line of an element has a wavelength of 5000 Angstroms. What would be the measured wavelength of that line in the spectrum of a planet which is approaching at a velocity of 30 km/s? (The speed of light is 300,000 km/s.)
Answers: 3
Physics, 22.06.2019 02:30
Awave travels at a speed of 5.2 m/s. if the distance between crests is 0.40 m, what is the frequency of the wave? use f=v/wavelength a. 13 hz b. 2.1 hz c. 0.077 hz d. 5.6 hz
Answers: 1
Physics, 23.06.2019 00:30
1. when conducting a test on what kind of music increases the growth of plants, all of the following would fail to meet to fair test standard except (1 point) using different kinds of plants. giving some plants more water than others. exposing the plants to different types of music. using nutrient-rich soil for one and lesser soil for others. 2. engineering uses scientific thinking to solve real-world problems. (1 point) true false 3. what does it mean to test a hypothesis? (1 point) pass a quiz on other scientists’ results analyze only the results from scientific sources not make assumptions about how an experiment will turn out see if the results of an experiment are what the scientist predicted
Answers: 3
Physics, 23.06.2019 03:20
2. which of the following does not affect the electrical resistance of a body? a. material composing the body b. bodies directly surrounding the body c. length of the body > d. temperature of the body
Answers: 2
In the laboratory, a spectral line of an element has a wavelength of 5000 Angstroms. What would be t...
Mathematics, 13.04.2020 23:03
History, 13.04.2020 23:03
Computers and Technology, 13.04.2020 23:03
Mathematics, 13.04.2020 23:03
Spanish, 13.04.2020 23:03
History, 13.04.2020 23:03
Mathematics, 13.04.2020 23:03
Biology, 13.04.2020 23:03
Mathematics, 13.04.2020 23:03