The quantity "stress" expressed in terms of the fundamental quantities (mass, length, time) is equivalent to
a. MLT?1.
b. ML?1T?2.
c. M2L?1T?3.
d. a dimensionless quantity.
b
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Radiative energy is
A) heat energy. B) energy from nuclear power plants. C) energy carried by light. D) energy used to power home radiators. E) energy of motion.
Why are clay surfaces good at promoting the formation of biological polymers?
A) they are the only types of material monomers will stick to B) they bring monomers close together, allowing them to react with each other C) they are very common on the Earth D) clays are made of biological polymers
An n-type semiconductor is produced by
A) pure crystals of germanium. B) doping the host crystal with donor impurities. C) doping the host crystal with acceptor impurities.
There is no gravity in space
Indicate whether the statement is true or false