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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As more resistors are added in series to a constant voltage source, the power supplied by the source
A) increases. B) decreases. C) does not change. D) increases for a time and then starts to decrease.
Physics & Space Science
The lowest-pitch tone to resonate in a pipe of length L that is open at both ends is 200 Hz. Which one of the following frequencies will NOT resonate in the same pipe?
A) 400 Hz B) 600 Hz C) 800 Hz D) 900 Hz E) 1000 Hz
Physics & Space Science
The second period of the periodic table is composed of ______________ (how many?) elements
Fill in the blank(s) with correct word
Physics & Space Science
Conversion of Units: A spherical fruit has a radius of 3.23 cm. What is the volume of the fruit in cubic meters?
A. 1.41 × 10-4 m3 B. 1.41 m3 C. 4.23 × 10-4 m3 D. 4.23 m3
Physics & Space Science