The preferential orientation of the EM field vectors of light is called ______________
Fill in the blank(s) with correct word
polarization
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Two charged particles held a certain distance apart are released. As they move, the force on each particle increases. Therefore, their charges have
A) the same sign. B) opposite signs. C) the same mass. D) the same size. E) need more information
An object heated to twice the absolute temperature emits radiation
A) with twice the peak frequency. B) in the ultraviolet part of the spectrum. C) in the radio wave part of the spectrum. D) with longer wavelengths.
As a leaf grows, it becomes more organized. Does this process violate the law of entropy?
A) Yes; in fact, it is known that the law of entropy does not apply to biological processes such as the growth of a leaf, or biological evolution. B) No, because total energy is conserved in this process, despite the increased organization of the leaf. C) No, because the radiation passing through the leaf during this process increases its entropy, so that the total entropy increases. D) No, because the O2 that is emitted during photosynthesis has greatly increased entropy, resulting in an overall increase of the total entropy. E) No, because the sugars and other molecules of the leaf are formed at a high temperature, resulting in an overall increase of the total entropy.
(a) Develop an equation for the time at which the plastic (viscous) strain is equal to the elastic strain in a Maxwell solid (series spring and dashpot) subject to a stress (?) where the viscous component is Newtonian (n=1).
(b) Determine the time (t) when the plastic strain is equal to the elastic strain in quartz subject to a stress of 35 MPa at 1250 K, if the viscosity is equal to 1014 Pa·s and the elastic modulus is equal to 70×109 Pa, assuming that the quartz behaves as a Maxwell solid. (c) Determine the total strain at the time (t).