Answers: 3
Physics, 22.06.2019 12:30
Hydrogen atoms are excited by a laser to the =4n=4 state and then allowed to emit. what is the maximum number of distinct emission spectral lines (lines of different wavelengths) that can be observed from this system? 8 6 2 7 4 5 1 3 calculate the wavelength of the 4⟶14⟶1 transition. =λ=
Answers: 2
Physics, 22.06.2019 18:30
Ablock of mass m slides on a horizontal frictionless table with an initial speed v0 . it then compresses a spring of force constant k and is brought to rest. the acceleration of gravity is 9.8 m/s2. how much is the spring compressed x from its natural length? 1) x = v0*sqrt(k/(mg)) 2) x=v0*sqrt(m/k) 3) x=v0*((mk)/g) 4) x=v0*sqrt(k/m) 5) x=v0*(m/kg) 6) x=v0*sqrt((mg)/k) 7) x=(v0)^2/(2g) 8) x=v0*(k/(mg)) 9) x=(v0)^2/(2m) 10) x=v0*((mg)/k)
Answers: 3
Physics, 23.06.2019 00:20
Amaterial that provides resistance to the flow of electric current is called a(an) (1 points)
Answers: 1
Physics, 23.06.2019 02:30
Which substance partical has negligible massand travels around outsidethe nucleus
Answers: 3
Calculate the momentum ( kg m/s ) of Christine and her cart as she rolls immediately after they are...
Chemistry, 20.07.2019 14:00
Social Studies, 20.07.2019 14:00
Spanish, 20.07.2019 14:00
Spanish, 20.07.2019 14:00
Mathematics, 20.07.2019 14:00
English, 20.07.2019 14:00
Biology, 20.07.2019 14:00
Social Studies, 20.07.2019 14:00
Biology, 20.07.2019 14:00
Mathematics, 20.07.2019 14:00