Nanotechnology looks at working with particles the size of
A) 100 microns or larger.
B) 1 to 100 nanometers, the realm of individual atoms and molecules.
C) 50 grams and smaller.
D) infinitesimally small, the size of electrons.
B
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A 2000-kg car and a 4000-kg car are hoisted the same vertical distance in a service station. Raising the more massive car requires
A. twice as much work. B. less work. C. four times as much work. D. as much work.
The easiest, cleanest, most environmentally sound, and least expensive way to make energy more available is to
A. buy incandescent light bulbs. B. reduce energy waste. C. install solar panels. D. drive a hybrid vehicle. E. switch to a natural gas furnace.
You can have a cognitive image of a place to which you have never been
Indicate whether this statement is true or false.
What do the solid particles of a stream include?
A)bed load only B)suspended load only C)solution load only D)bed load and suspended load E)suspended load and solution load