The radiation era lasted for only the first few billion years of the Big Bang
Indicate whether the statement is true or false
FALSE
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Which of the following statements about the disk of the Milky Way is generally true?
A) The typical age of disk stars is greater than that of halo stars. B) Disk stars are all younger than 5 billion years. C) Disk stars have a higher proportion of heavy elements, on average, than halo stars. D) Disk stars orbit around the Galactic center in orbits of random inclination and direction. E) The diameter of the disk is about 1 million times its thickness.
The force in member FE of the plane truss below is approximately:
(A) 21.5 kN
(B) 22.2 kN
(C) 3.9 kN
(D) 4.7 kN
Is it feasible to construct an air-filled parallel-plate capacitor that has its two plates separated by 0.10 mm and has a capacitance of 1.0 F? Why or why not?
A certain ideal gas has a molar specific heat at constant volume 7R/2. What is its molar specific heat at constant pressure?
A) 5R/2 B) 3R/2 C) 8R D) 9R/2 E) 6R