The first paragraph contrasts the glory and spectacle of marching armies to the realistic result of armed conflict. through what phrase does voltaire remind his reader of the absurdity of philosophical optimism in the context of war?

The frequencies refer to the sample data collected from a population of interest when performing a hypothesis test comparing two or more population proportions.

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?

What is the name of the perceived change in a sound wave’s frequency due to motion between the observer and the sound source?