The critical angle for total internal reflection at a liquid– air interface is (a) if a ray of light traveling in the liquid has an angle of incidence at the interface of what angle does the refracted ray in the air make with the normal? (b) if a ray of light traveling in air has an angle of incidence at the interface of what angle does the refracted ray in the liquid make with the normal?

Marcella is a four-year-old girl who is a victim of emotional child abuse. based on the child and family services improvement and innovation act of 2011, which action should the government take for marcella? a. the state should arrest marcella’s abuser. b. the state should find a home for marcella as soon as possible. c. the state should enforce stricter laws in the area where marcella resides. d. the state should provide medical assistance to marcella.