Physics, 13.08.2019 18:10 riveranikki2
Avariable star is one whose brightness alternately increases and decreases. for the most visible variable star, delta cephei, the time between periods of maximum brightness is 5.4 days, the average brightness (or magnitude) of the star is 4.0, and its brightness varies by 60.35 magnitude. find a function that models the brightness of delta cephei as a function of time.
Answers: 1
Physics, 22.06.2019 14:30
Exercise 2. find the wavelength of a photon emitted when an electron jumps from the n = 3 energy level down to the n = 2 energy level. where is this photon in the electromagnetic spectrum?
Answers: 3
Physics, 22.06.2019 19:30
Select light for the type of wave, adjust the wavelength so that the light is red, and increase the amplitude of the light to the max. then, select the start button at the source location to begin producing the waves. light is a form of electromagnetic wave, containing oscillating electric and magnetic fields. the wave amplitude detector mentioned above shows how the electric field oscillates in time at the location of the probe. the amplitude of the wave at the location of the probe is equal to the maximum electric field measured. how does the amplitude of the wave depend on the distance from the source?
Answers: 2
Physics, 23.06.2019 10:00
You walk 45 m to the north, then turn 90° to your right and walk another 45 m how far are you from where you originally started? a.45 m b.41 m c.85 m d.64 m
Answers: 3
Physics, 23.06.2019 16:00
Planets in our solar system do not revolve around the sun in perfect circles. their orbits are nore like ovals. which term do scientists use to describe these orbits
Answers: 2
Avariable star is one whose brightness alternately increases and decreases. for the most visible var...
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