light has the lowest velocity in which medium flint glass n = 1 . 70 barium glass n = 1. 60 crown glass n = 1. 523 water n 1.33 diamond n = 2. 40

What causes the development of most clouds and precipitation in the atmosphere?

Currents in dc transmission lines can be 100 a or higher. some people are concerned that the electromagnetic fields from such lines near their homes could pose health dangers. for a line that has current 150 a and a height of 8.0 m above the ground, what magnetic field does the line produce at ground level? express your answer in teslas and as a percentage of the earth’s magnetic field, which is 0.50 g. is this value cause for worry?

Which are causes of mechanical weathering? (check all that apply) a. acid rain b. plant growth c. animal actions d. carbon dioxide e. pressure release i chose b & e and got the question wrong.