Jupiter and the other jovian planets may have formed significantly closer to the Sun than their current orbits
Indicate whether the statement is true or false
FALSE
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In the unified model of active galactic nuclei, the broad line region in an active galactic nucleus is
a. composed of clouds of gas and stars moving at very high orbital velocities near a supermassive black hole. b. composed of a super massive black hole surrounded with empty space c. responsible for producing the bright continuous radiation from within the event horizon. d. responsible for the narrow absorption lines seen in Type 2 Seyfert galaxies. e. located far from the core beyond the disk of stars of the galaxy
Photoelectric Effect: What is the longest wavelength of light that can cause photoelectron emission from a metal that has a work function of 2.20 eV? (1 eV = 1.60 × 10-19 J, c = 3.00 × 108 m/s, h = 6.626 × 10-34 J ? s)
A. 417 nm B. 257 nm C. 344 nm D. 565 nm E. 610 nm
A supertanker filled with oil has a total mass of 6.1 × 10^8 kg. If the dimensions of the ship are those of a rectangular box 300 meters long, 80 meters wide, and 40 meters high, determine how far the bottom of the ship is below sea level. (?sea = 1020 kg/m3.)
a. 10 m b. 15 m c. 20 m d. 25 m e. 30 m
The pupil of a person's eye changes from a diameter of 3.5 mm to 1.5 mm as the illumination is increased. By what factor does the minimum angle of resolution change?
A) 0.43 B) 2.3 C) 0.65 D) 2.0