The is true because I said so
Answer: let north be+ and south be-
therefore, -1 km is the resultant displacement of the bird
hope it helped u,
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^_^
Answer:
The only difference between radio waves, visible light and gamma rays is the energy of the photons.'
Bothrays have photons, but in radio waves they are weaker.
Spacecraft used is "Friendship 7". Hope it helps.
