An electron undergoes a transition from an initial (ni) to a final (nf ) energy state. the energies of the ni and nf energy states are −2.179×10−18j and −8.720×10−20 j, respectively.. calculate the wavelength (λ) of the light in nanometers (nm) corresponding to the energy change (δe) value of this transition. you can use the following values for your calculations: . planck′s constant (h) = 6.626×10−34 j⋅s. speed of light (c) = 2.998×108 m/s. 1 m = 109 nm
Answers: 1
Physics, 22.06.2019 13:50
Observations show that interstellar clouds can have almost any shape and
Answers: 1
Physics, 22.06.2019 16:50
Calculate the first and second velocities of the car with four washers attached to the pulley, using the formulas v1 = 0.25 m / t1 , and v2 = 0.25 m / (t2 – t1) where t1 and t2 are the average times the car took to reach the 0.25 and the 0.50 meter marks. record these velocities, to two decimal places, in table e.
Answers: 2
Physics, 23.06.2019 18:00
Aruby has a density of 3.9 g/cm³. what is the mass of the ruby, if its volume is 5 cm³? a. 0.78 g b. 1.28 g c. 8.9 g d. 19.5 g
Answers: 1
An electron undergoes a transition from an initial (ni) to a final (nf ) energy state. the energies...
Social Studies, 12.02.2020 19:24
History, 12.02.2020 19:24
Chemistry, 12.02.2020 19:24