Aplane flies northwest out of o'hare airport in chicago at a
speed of 400 km/hr in a direction of 150 degrees (i. e., 30 degrees
north of west). the canadian border is located a distance of 1500
km due north of chicago. the plane will cross into canada after
approximately hours.

8. why do radio telescopes convert radio waves (analog signals) to electrical (digital) signals for analysis? (hint: what did the article say about the advantages of digital signals? )

Aray of light traveling parallel to the principal axis of a concave mirror will be reflected through the mirror's

Which are advantages of renewable resources? check all that apply. renewable energy supplies are completely reliable everywhere. some renewable resources will never be used up. little or no waste is produced by renewable resource plants. electricity can be generated in large quantities. many renewable energy facilities have lower operating costs.