Current understanding holds that a galaxy's type (spiral, elliptical, or irregular)
A) may either be the result of conditions in the protogalactic cloud that formed it or the result of later interactions with other galaxies.
B) is always determined by the angular momentum of the protogalactic cloud that formed it.
C) is always determined by whether the galaxy is located in a cluster where collisions are likely or outside a cluster where collisions are less likely.
D) may either be a result of the mass of the protogalactic cloud that formed it or the result of the heavy element abundance in that cloud.
A) may either be the result of conditions in the protogalactic cloud that formed it or the result of later interactions with other galaxies.
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A bubble having a diameter of 1.00 cm is released from the bottom of a swimming pool where the depth is 5.00 m. What will the diameter of the bubble be when it reaches the surface? The temperature of the water at the surface is 20.0°C, whereas it is 15.0°C at the bottom. (The density of water is 1.00 × 10^3 kg/m3.)
a. 1.05 cm b. 1.15 cm c. 1.45 cm d. 1.65 cm e. 1.35 cm
How can some mergers activate spirals, and others destroy them?
What will be an ideal response?
At a location that is 3.00 m from wave source A and 4.20 m from wave source B, destructive interference occurs. Source A and source B are coherent and in phase
What is the maximum wavelength of the waves? A) 0.60 m B) 1.20 m C) 12.6 m D) 1.40 m E) 2.40 m
The ecliptic passes through the zodiac
a. True b. False Indicate whether the statement is true or false