The pressure in the oil (S = 0.86) pipe is 12 kPa. The pressure in the water pipe is nearest:
(A) -34.8 kPa
(B) -28.8 kPa
(C) -18.8 kPa
(D) -13.1 kPa
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Molecular Speeds: At what temperature would the root-mean-square speed of hydrogen, H2, molecules equal 11.2 km/s (the earth's escape speed)? The mass of a hydrogen atom is 1.67 × 10-27 kg, and the Boltzmann constant is 1.38 × 10-23 J/K.
A. 1.01 × 102 K B. 1.01 × 104 K C. 1.01 × 106 K D. 1.01 × 108 K
What is proper motion? How is it related to transverse velocity?
What will be an ideal response?
The crustal surface varies in
A) composition, density, and thickness. B) isostasy, density, and rock competence. C) thickness—the oceanic crust is thinner than the continental crust. D) density—the oceanic crust is heavier than the continental crust.
The lunar highlands appear brighter than the mare, because these highlands are due to meteor impact that completely avoided the mare
Indicate whether the statement is true or false