Given the wavelength of the corresponding emission line, calculate the equivalent radiated energy from n = 3 to n = 2 in both joules and electron volts. Also calculate the frequency of the wave. λ (Á) ƒ(Hz) E(J) E(eV)
6563

that would be b i just took the test : )

the only real purpose of sputnik 1 was to beat the us into space. we were getting close to launching a useful satellite, explorer 1 - which launched on january 31, 1958. the ussr had to beat that, so they launched sputnik 1 on october 4, 19

it would be c. predictability