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
a. a dark (absorption) line b. a bright (emission) line c. continuous
Physics & Space Science
A merry-go-round is set into motion with a child on board. The rotational speed of the merry-go-round ________ as the child moves inward along a radius.
Fill in the blank(s) with the appropriate word(s).
Physics & Space Science
You measure a 20.0-V potential difference across a 5.00-W resistor. What is the current flowing through it?
a. 5.00 A c. 100 A b. 4.00 A d. 1.00 A
Physics & Space Science
What is the difference between absorption and adsorption?
What will be an ideal response?
Physics & Space Science