Plastic strain in silica glass at a temperature just above the glass transition temperature is due to:
(a) Dislocation motion
(b) The breaking and reforming of silicon-oxygen bonds with different neighbors.
(c) The sliding of different silicone long-chain molecules.
(d) Glass is always a liquid and flows like a liquid at any temperature.
(b) The breaking and reforming of silicon-oxygen bonds with different neighbors.
You might also like to view...
O-type stars
A) have lifetimes long enough for advanced life to evolve B) have lifetimes long enough for planets to form and for life to appear, but not long enough for advanced life C) do not contain enough heavy elements to form planets D) have lifetimes too short for planet formation
The magnitude of a vector can be less than the magnitude of one of its components
Indicate whether the statement is true or false
How does a particle’s relativistic kinetic energy K compare to its Newtonian kinetic energy when the particle’s speed 
?
A. 
B. 
C.
A 500-N object sits on the small piston of a hydraulic machine. The small piston has an area of 2.0 cm2. If the large piston has an area of 40 cm2, how much weight can the large piston support? Assume the pistons each have negligible weight
A) 25 N B) 500 N C) 10000 N D) 40000 N