Mrs. torre sends her children to a private elementary school and has made friends with several fellow parents. mrs. torre's neighbor, mrs. klucik, on the other hand, home-schools her children. mrs. torre does not take part in the activities and group events that mrs. klucik does as a home-schooling mother. social psychologists would consider mrs. torre to be part of the of the elementary school parents, and part of the of the home-school parents. a. emotions; cognitionsb. ethnocentrics; discriminatersc. out-group; in-groupd. in-group; out-group

see earlier answer

laticia draws the diagram below to show earth’s magnetic field.

answer

the arrows to the right of earth should point up.

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west

speed of light in vacuum is 300,000 km/s

speed of light in other mediums is given by the expression v = c/n, where c is the speed of light in vacuum and n is the refractive index of medium.

for the first medium v = 200,000 km/s

  so, refractive index of medium = 300000/200000 = 1.5

    1.5 refractive index is usually for glass. so first medium is glass.

for the second medium v = 250,00 km/s

so, refractive index of medium = 300000/250000 = 1.2

    1.2 refractive index is usually for water. so second medium is water.

for the third medium v = 0 km/s

so, refractive index of medium = 300000/0 = ∞

    ∞ refractive index is usually for opaque mediums. so third medium is opaque medium.