An object 4 cm high is placed 15 cm in front of a convex mirror with a focal length of ?10 cm. What is the image position (in cm)?
a. ?8
b. ?4
c. ?2
d. ?6
e. 30
d
Physics & Space Science
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If continuous spectrum light from a star passes through a cool, low-density gas on its way to your telescope and spectroscope, ____ spectrum on the continuous spectrum results
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Fill in the blank(s) with the appropriate word(s).
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You measure a 20.0-V potential difference across a 5.00-W resistor. What is the current flowing through it?
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Physics & Space Science