Which of the following statements is true of a bipolar flow?
A) It represents jets flowing in opposite directions away from a central object.
B) It is similar to that of laminar and transient flows.
C) It is not associated with Herbig-Haro objects.
D) It is not associated with the asymptotic giant branch stars.
A
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What are electrons a type of?
A.) Proton. B.) Quark. C.) Neutron. D.) Neutrino. E.) Lepton.
The prediction of special relativity that moving clocks run slow is
a. time dilation. b. length contraction. c. the equivalence of mass and energy. d. the principle of relativity. e. none of the above.
A scuba diver has his lungs filled to half capacity (3 liters) when 10 m below the surface. If the diver holds his breath while quietly rising to the surface, what will the volume of the lungs be (in liters) at the surface? Assume the temperature is the same at all depths. (The density of water is 1.0 × 10^3 kg/m3.)
a. 5.9 b. 4.5 c. 6.4 d. 3.9 e. 3.1
A 160 lb person has a mass of 160/32 = 5 slugs. A 160 lb person steps into an elevator and stands on a bathroom scale. Determine the scale reading for the given scenarios. The elevator cable breaks
a. 150 lb c. 170 lb b. 160 lb d. none of the above