Distinguish between metamorphic foliation and sedimentary layering
What will be an ideal response?
Answer: Foliation is the realignment of minerals during recrystallization so that they are perpendicular to the direction of compressive force. Sedimentary layering is the result of the laying down of sediments one on top of the other.
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If the minimum x-ray wavelength produced is 17 × 10^?12 m, through what potential are the electrons accelerated in order to generate this radiation? (h = 6.63 × 10^?34 J?s, c = 3.00 × 10^8 m/s, and 1 eV = 1.60 × 10^?19 J)
a. 1.17E+5 V b. 2.44E+4 V c. 1.10E+4 V d. 7.31E+4 V e. 1.87E+5 V
Hubble Space Telescope is still the largest scope ever built
Indicate whether the statement is true or false
A spaceship is observed from the Earth to be moving toward a star at a speed of 0.80 c. If the distance from the spaceship to the star is 1.6 ly as measured from earth, how far is the star as measured from the moving space ship?
A. 2.1 ly B. 1.9 ly C. 1.6 ly D. 1.2 ly E. 0.96 ly
A sprinter runs 100.0 m. If he travels at constant acceleration of 1.95 
for the first 75.0 m and then at constant velocity for the remaining distance, what was his total elapsed time for the whole race?
A. 11.3 s B. 9.8 s C. 10.1 s D. 10.2 s