Jane plans to fly from Binghampton, New York, to Springfield, Massachusetts, about 280 km due east of Binghampton. She heads due east at 280 km/h for one hour but finds herself at Keene, which is 294 km from Binghampton in a direction 17.8 degrees north of due east. What was the wind velocity?
a. 14 km/h, E
b. 14 km/h, W
c. 14 km/h, N
d. 90 km/h, S
e. 90 km/h, N
e
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a. cosmic rays b. helium c. dust d. carbon e. synchotron radiation
What is the value of n in the Balmer series for which the wavelength is 410.2 nm?
A) 4 B) 5 C) 6 D) 7 E) 9
Special relativity tells us that
A) the speed of light is variable. B) light moves faster if emitted by a source moving in the direction of emission. C) light moves faster if emitted by a source moving in the direction of emission and light moves slower if emitted by a source moving in the direction opposite the emission. D) light moves slower if emitted by a source moving in the direction opposite the emission. E) light moves at the same speed independent of the motion of the source.
What kind of activity does the surface of Triton experience?
a. nitrogen geysers b. sulfur-based volcanoes c. carbon dioxide geysers d. methane ice tectonics e. liquid nitrogen lava flows