The NGC (New General Catalog) is a compilation started by Herschel, and lists galaxies and other astronomical objects.
Answer the following statement true (T) or false (F)
True
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The most abundant component of the atmospheres of Uranus and Neptune is
A) hydrogen. B) helium. C) methane. D) ammonia. E) nitrogen.
Planet Zero has a mass of 5.0 × 1023 kg and a radius of 2.0 × 106 m. A space probe is launched vertically from the surface of Zero with an initial speed of 4.0 km/s. What is the speed of the probe when it is 3.0 × 106 m from Zero's center?
A. 3.0 km/s B. 2.2 km/s C. 1.6 km/s D. 3.7 km/s E. 5.9 km/s
A solar heating system has a 25.0% conversion efficiency; the solar radiation incident on the panels is 1000 W/m2 . What is the increase in temperature of 40.0-kg of water in a 1.00-h period by a 4.00 m2 area collector? (cw = 4186 J/kg • °C)
a. 14.3°C c. 28.7°C b. 21.5°C d. 44.3°C
The power consumed by the light bulb is __________
Fill in the blank(s) with correct word