The "efficiency" of a light bulb is the ratio of the:
a. heat plus electricity produced to the electrical input
b. voltage output of the bulb to the power input
c. energy into the bulb to the energy out of the bulb
d. light output to the electrical energy input
d
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A stream's load is divided into three components: ______________ load, suspended load, and bed load
Fill in the blank(s) with correct word
The measured ratio of circumference to diameter on a disk is ? when the disk is
A) moving at relativistic speeds. B) rapidly rotating. C) at rest. D) all of the above E) none of the above
The tensile force divided by the original cross-sectional area of a specimen is the engineering normal _____________.
Fill in the blank(s) with the appropriate word(s).
Homogeneity and isotropy, taken as assumptions regarding the structure and evolution of the universe, are known as:
A) Obler's Paradox. B) Hubble's Law. C) Wien's Law. D) the Cosmological Principle. E) the Grand Unified Theory.