Hydraulicists often express rainfall in acre-feet. This is the amount of water required to cover an area of one acre to a depth of one foot. There are 640.0 acres in a square mile, and 5280 feet in one mile
How many cubic feet are there in one acre-foot?
43,560 ft3
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Clocks on fast-moving spaceship shizzing past Earth appear to run slow when viewed from
A) inside the spaceship. B) Earth. C) Both of these. D) Neither of these.
If the Moon is setting at 6 A.M., the phase of the Moon must be
A) first quarter. B) third quarter. C) full. D) new. E) waning crescent.
An object starts with an initial velocity of 4.0 m/s and accelerates with an acceleration of +4.0 for 6.0 seconds. It then decelerates at -2.0
until its velocity is 4.0 m/s. The total distance covered is
A. 67 m. B. 94 m. C. 105 m. D. 192 m. E. 215 m.
A television advertisement claiming that a product is light-years ahead of its time does not make sense because ________
A) light-years can only be used to talk about light B) it doesn't specify the number of light-years C) it uses "light-years" to talk about time, but a light-year is a unit of distance D) a light-year is an astronomically large unit, so a product could not possibly be so advanced