Algebraic symbols in physics equations represent physical quantities, therefore
A. the symbols represent numbers only.
B. the symbols represent numbers and units.
C. the symbols consist of units only.
D. the symbols are only abstract.
E. the symbols are only imaginary.
B. the symbols represent numbers and units.
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What is the limiting angle of resolution for the eye if the pupil diameter of the eye is 4.0 mm, the wavelength of the light is 600 nm, and index of refraction of the liquid in the eye is 1.34?
A) 0.42 mrad B) 0.21 mrad C) 0.14 mrad D) 0.11 mrad E) 0.26 mrad
After a ball tossed upward leaves your hand, the force of gravity on it
A) no longer acts. B) gradually diminishes. C) gradually increases. D) remains constant. E) changes direction.
"Canals" are a feature once associated with the planet ______________
Fill in the blank(s) with correct word
Caves and caverns are formed in carbonate rock by
A) abrasive action of swift flowing groundwater. B) reaction of carbonic acid released into the groundwater. C) stalactites and stalagmites. D) all of these