Which state of matter is associated with the very highest of temperatures?
a. liquid
b. plasma
c. gas
d. solid
b
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The maria on Ganymede were formed by
A) gravitational interactions with Callisto and Europa. B) plate tectonics. C) basalt erupting onto the surface. D) sulfur spewed from volcanoes. E) water erupting and spreading over the surface.
An object 4.0 cm in height is placed 8.0 cm in front of a concave mirror with a focal length of 10.0 cm. What is the position of its image in relation to the mirror and what are its characteristics?
A) 40.0 cm on the other side of mirror, real, 6.0 times bigger B) 10.0 cm on the other side of mirror, virtual, 10.0 times bigger C) 18.0 cm on the same side of mirror, virtual, 2.25 times bigger D) 10.0 cm on the same side of mirror, real, 6.0 times bigger E) 40.0 cm on the other side of mirror, virtual, 5.0 times bigger
A 20.0 kg hollow cylinder (I = 
) has a diameter of 50.0 cm. The cylinder is rolling down a hill with a velocity of 5.00 m/s. The rotational kinetic energy of the rolling cylinder is
A. 225 J. B. 200 J. C. 175 J. D. 150 J. E. 250 J.
Elements heavier than Iron (like Gold) are formed:
A: during Type Ia supernova explosions B: during Type II supernova explosions C: during the deaths of massive stars D: both A and C E: both B and C