In a nonlinear elastic material, the ratio of the applied stress to the total strain is the _____________modulus.
Fill in the blank(s) with the appropriate word(s).
secant
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Compound Microscope: For relaxed viewing with a microscope or a telescope, the eyepiece is adjusted to place the image at
A. the near point of the eye. B. the pupil of the eye. C. the focal point of the eyepiece. D. infinity. E. the focal point of the objective lens.
What is the average translational kinetic energy per molecule of an ideal gas at a temperature of 300 K? The Boltzmann constant is 1.38 × 10-23 J/K
A) 1.7 × 10-21 J B) 8.3 × 10-21 J C) 6.2 × 10-21 J D) 2.1 × 10-21 J E) 4.1 × 10-21 J
Gasoline yields 4.8 × 107 joules per kg when burned. The density of gasoline is approximately the same as that of water, and 1 gal = 3.8 L. How much energy does your car use on a trip of 100 mi if you get 25 mi per gallon?
What will be an ideal response?
The Sun is a slightly variable star. What if the surface temperature of the Sun were to increase from 6000 K to 6100 K, what would be the increase in total power radiated assuming no other changes such as radius or emissivity?
a. 1.6% c. 3.4% b. 6.8% d. 14%