The Milky Way galaxy is part of
a. the Virgo cluster.
b. the Large Magellanic Cloud.
c. the Small Magellanic Cloud.
d. the Local Group.
e. a rich cluster.
D
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Determine the molar analysis of standard air (79% N2, 20% O2, and 1% argon, by volume) with 100 ppm of radon gas at 101 kPa, 20ºC.
What will be an ideal response?
Mass on a Spring: An object attached to an ideal spring oscillates with an angular frequency of 2.81 rad/s. The object has a maximum displacement at t = 0.00 s of 0.232 m. If the force constant (spring constant) is 29.8 N/m, what is the potential energy stored in the mass-spring system when t = 1.42 s?
A. 0.350 J B. 0.256 J C. 0.329 J D. 0.399 J
When heat and pressure are applied to a sedimentary rock it turns into
A) a metamorphic rock B) a meteorite C) another sedimentary rock D) an igneous rock
A Hooke's law spring is compressed 12.0 cm from equilibrium, and the potential energy stored is 36.0 J. What compression (as measured from equilibrium) would result in 100 J being stored in this case?
a. 20.0 cm c. 13.6 cm b. 14.1 cm d. The correct answer is not given.