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rondonalba
07.02.2022 •
Physics
Suppose that a color spotlight falls on an object that absorbs Green color. Determine the color appearance of the object if illuminated by a Red spotlight. Be sure to begin by determining the primary color(s) of light that are incident upon the objects and then subtracting the absorbed color from the incident color(s).
a. Yellow
b. Green
c. Red
d. Blue
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Ответ:
0.2 km/m east
Explanation:
The magnitude of Walt's velocity is given by:
where
s is Walt's displacement
t is the time taken
In this problem, Walt's displacement is s=5 km, while the time taken is t=25 m, so the velocity is
and the direction is east, since Walt is running eastwards.