Write down the time-independent schrödinger equation of a particle with mass m confined in a central potential -1/r. use spherical coordinates.

2. write down the time-independent schrödinger equation of two particles with masses m_1 and m_2 that are attracted to each other by potential -1/r_12 , where r_12 is the particle-particle distance, namely, r_12 = sqrt((x_1 - x_2)^2+(y_1 - y_2)^2+(z_1 - z_2)^2) , where particle 1’s coordinates are (x_1, y_1, z_1) and particle 2’s coordinates are (x_2, y_2, z_2).

f is prop to m1xm2 double m1 double force

hi,

what occurs during a solar eclipse?

there are small tides across earth.

the moon is between earth and the sun.

p.s. im not sure if the first answer is correct because during a solar ecliphse there are spring tides and i dont know if they are the same.

you'd use the equation that establishes a relationship between  energy  and  wavelength, which looks like this

e=h⋅cλ, where

λ  - the wavelength of the photon; c  - the speed of light, usually given as  3⋅108m/s; h  -  planck's constant, equal to  6.626⋅10−34j s

plug the value you were given for the energy of the photon in the above equation to get the wavelength

e=h⋅cλ⇒λ=h⋅ce

λ=6.626⋅10−34js⋅3⋅108ms−1.257⋅10−24j=1.581⋅10−1m