There are 640 acres in a square mile, and 5280 feet in one mile. What is the length in feet (to the nearest foot) of the side of a square having an area of one acre?
A) 660 feet
B) 209 feet
C) 165 feet
D) 412 feet
E) 435 feet
B
Physics & Space Science
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Name two telescopes that in recent years have improved our understanding of star forming regions
What will be an ideal response?
Physics & Space Science
In a single-slit diffraction experiment, a beam of monochromatic light passes through a slit of width 11.0 ?m
If the first order dark fringe of the resulting diffraction pattern is at an angle of 4.31°, what is the wavelength of light? A) 827 nm B) 301 nm C) 602 nm D) 402 nm E) 201 nm
Physics & Space Science
Variable stars are ones whose ________ changes over time
Fill in the blank(s) with correct word
Physics & Space Science
A(n) ____ is a commonly accepted set of scientific ideas and assumptions
a. theory b. paradigm c. hypothesis d. natural law e. model
Physics & Space Science