When an electron in excited energy level drops to a lower energy level, a photon is emitted.

If the electron is dropping to n=1, which transition will emit the longest

wavelength? n= was to n=1.

answer

i think the answer is a) as air pressure in an area increases, the density of the gas particles in that area decreases.

hope it

away from the curb

explanation:

the wheels would then hit the curb if it started to rolling, decreasing the chance of an accident.

a: 45.9 meters

b: 4.29 seconds

step-by-step explanation:

a: h(t)=1/2(-9.8)(3)^2+0(3)+90

h(t)=-4.9(3)^2+90

h(t)=-44.1+90

h(t)=45.9 meters

b: 0=1/2(-9.8)(t^2)+0t+90

0=-4.9t^2+90

-90=-4.9t^2

18.37=t^2

t=4.29 seconds

in the second question, the numbers aren't exact, but they're a close approximation.