A solid sphere with radius a has a charge distribution of rho(r) = (1/(4π))*(5r^2 + 4a*r) for r A) Find the total charge on the inner sphere. B) Find the magnitude of the electric field for r>b. C) Find the magnitude of the electric field for r

Light traveling in a medium with a refractive index 1.19 is incident on a plate of another medium with index of refraction 1.79. at what angle of incidence is the reflected light fully polarized?

The seven sisters, seven stars located more than 400 light-years away in the taurus constellation can be seen here with venus and another constellation, orion. the seven stars stay grouped together but seem to move, like the planet venus. why do stars seem to move like planets in the night sky?

Dao makes a table to identify the variables used in the equations for centripetal acceleration. what quantities belong in cells x and y?