An airplane flies 200 km due west from city a to city b and, Ask an Expert

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Q. Photons of wavelength 450 nm are incident on a metal. The most energetic electrons ejected from the metal are bent into a circular arc of radius 12.0 cm by a magnetic field with a magnitude of 1.06 x 10-5 T. What is the work function of the metal?

Q. An airplane flies 200 km due west from city A to city B and then 265 km in the direction of 27.5° north of west from city B to city C.

(a) In straight-line distance, how far is city C from city A?
km

(b) Relative to city A, in what direction is city C? north of west

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