Which eye defect is corrected by a lens having different curvatures in two perpendicular directions?
a. myopia
b. presbyopia
c. hyperopia
d. astigmatism
d
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You are asked to design a metal alloy for a high temperature application. What type of metal alloy phase diagrams should you consider first for this application?
(a) Continuous solid solution (b) Eutectic (c) Compound formation (d) Peritectic
The vast majority of stars in a newly formed star cluster are
A) less massive than the Sun. B) very high-mass, type O and B stars. C) red giants. D) about the same mass as our Sun.
While running, a person dissipates about 0.6 J of mechanical energy per step per kilogram of body mass. If a 60-kg person runs with a power of 70 watts during a race, how fast is the person running? Assume a running step is 1.5 m long.
What will be an ideal response?
A brass box is in the shape of a cube. The coefficient of linear thermal expansion is 
If the temperature of the box is increased by 20
then what is the fractional change in the volume of the box?
A. 0.08% B. 0.11% C. 0.15% D. 0.25% E. 0.30%