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When you notice the soft sound of rain on the roof, it has crossed a perceptual line called your _______ threshold for detecting an auditory signal. A. defining B. relative C. absolute D. determinant
When you notice the soft sound of rain on the roof, it has crossed a perceptual line called your absolute threshold for detecting an auditory signal.
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Asked 4/6/2018 2:26:26 PM
Updated 4/6/2018 3:32:33 PM
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When you notice the soft sound of rain on the roof, it has crossed a perceptual line called your absolute threshold for detecting an auditory signal.
Added 4/6/2018 3:32:33 PM
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Question|Asked by terrellfrank
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Updated 7/4/2019 1:19:45 PM
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If a 72-candela light source is located at a distance of 3 meters from a surface, the illuminance on the surface is 8 lux.
Solution:
E = I / s²; E = 72/9 = 8 lux.
Added 7/4/2019 1:19:45 PM
This answer has been confirmed as correct and helpful.
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Updated 37 days ago|10/17/2020 11:12:18 PM
1 Answer/Comment
When an object is placed 8 millimeters from a concave spherical mirror, a clear image can be projected on a screen 16 millimeters in front of the mirror. If the object has a height of 4 millimeters, the height of the image is 8 millimeters.

M = i / p m = 16 mm / 8 mm m = 2 mm 2 x 4 mm = 8 mm.
Added 37 days ago|10/17/2020 11:12:18 PM
This answer has been confirmed as correct and helpful.
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Question|Asked by terrellfrank
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Asked 4/6/2018 11:05:12 AM
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