Why do astronomers narrow their search to the "habitable zone" of other star systems?
a. the most likely place to support planets with thick atmospheres
b. the least likely place to have zero ultraviolet radiation
c. the most likely place with liquid water, and extraterrestrial life
d. the most likely place to have oxygen in the atmosphere
e. the least likely place to have wide temperature ranges on the surfaces of planets
c
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The simply supported beam ABC shown below is acted upon by applied axial force P at B; by linearly varying distributed load q on BC; and by applied moments MA and MC. Reaction forces are given in the figure in terms of load variable P. The axial force (N), shear (V), and bending moment (M) at mid-span are (in terms of variables L and P):
(A) 0, 0.22P, 0.63PL
(B) P, 0.29P, 0.33PL
(C) 0, 1.36P, 0.33PL
(D) 0, 0.29P, 0.33PL
While in an airplane flying at 100 km/h you look down from the window and spot another airplane flying at the same speed in the opposite direction. Relative to you, the speed of the spotted plane is
A) zero. B) 100 km/h. C) 150 km/h. D) 200 km/h.
A series circuit has a 100-? resistor, a 0.100-?F capacitor, and a 2.00-mH inductor connected across a 120-V rms ac source operating at resonant frequency. What is the rms value of the voltage across the capacitor?
A) 54.0 V B) 120 V C) 150 V D) 533 V E) 170 V
Are you reading the Energy Guide material on the appliances you purchase? Do you look for the Energy Star label? Why or why not? Do you think you should if you don't? Do you think it's helped if you do? Explain your answer
What will be an ideal response?