Physics, 09.09.2021 14:00, genyjoannerubiera
Explain how red shift supports the Big Bang Theory. Use at least two complete sentences to write your answer.
Answers: 2
Physics, 21.06.2019 18:10, eweqwoewoji
Scientists use laser range-finding to measure the distance to the moon with great accuracy. a brief laser pulse is fired at the moon, then the time interval is measured until the "echo" is seen by a telescope. a laser beam spreads out as it travels because it diffracts through a circular exit as it leaves the laser. in order for the reflected light to be bright enough to detect, the laser spot on the moon must be no more than 1.0 km in diameter. staying within this diameter is accomplished by using a special large-diameter laser. part a if λ = 540nm , what is the minimum diameter of the circular opening from which the laser beam emerges? the earth-moon distance is 384,000 km. express your answer to two significant figures and include the appropriate units.
Answers: 1
Physics, 22.06.2019 07:20, MannyBanko1350
If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =
Answers: 1
Physics, 22.06.2019 09:00, kiarajack456
Why can blue light and yellow light combine to produce white light? question 17 options: they are both primary colors of light. they absorb each other's wavelengths. because blue, yellow, and white are primary colors. they are complementary colors of light.
Answers: 1
Physics, 22.06.2019 10:30, markfaerman5408
Carbon is allowed to diffuse through a steel plate 15 mm thick. the concentrations of carbon at the two faces are 0.65 and 0.30 kg c/m^3 fe, which are maintained constant. if the preexponential and activation energy are 6.2 x 10-7 m2 /s and 80,000 j/mol, respectively, compute the temperature at which the diffusion flux is 1.43 x 10^-9 kg/m^2 -s.
Answers: 3
Explain how red shift supports the Big Bang Theory. Use at least two complete sentences to write you...
Mathematics, 28.10.2019 00:43
Biology, 28.10.2019 00:43
History, 28.10.2019 00:43
Mathematics, 28.10.2019 00:43
Mathematics, 28.10.2019 00:43