Physics, 16.09.2019 18:30 nettyshaf202406
An orange is placed on a table in a completely dark room, without any source of light. which of the following choices correctly describes what an observer will see as he looks in the direction of the orange?
a) the orange will not be seen at all because light is not bouncing off its surface.
b) the orange will be seen by the observer immediately, but it will be very dim.
c) the orange will only be seen after the observer’s eyes adjust to the darkness.
d) the orange will be seen by the observer immediately, but it will be very dim. the orange will become brighter as the observer’s eyes adjust to the darkness.
Answers: 2
Physics, 22.06.2019 10:20, yofavvlele
Assume that a person skiing high in the mountains at an altitude of h = 15100 ft takes in the same volume of air with each breath as she does while walking at sea level. determine the ratio of the mass of oxygen inhaled for each breath at this high altitude compared to that at sea level. assume that the air composition (i. e. % of air that is oxygen) is the same at sea level as it is at 15100 ft.
Answers: 2
An orange is placed on a table in a completely dark room, without any source of light. which of the...
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