What is Jupiter's Great Red Spot?
A) the place where reddish particles from Io impact Jupiter's surface
B) a hurricane that comes and goes on Jupiter
C) a large mountain peak poking up above the clouds
D) a long-lived, high-pressure storm
E) the place where Jupiter's aurora is most visible
D
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Two steel spheres are made of the same material and have the same diameter, but one is solid and the other is hollow. If their temperature is increased by the same amount,
A) the solid sphere becomes bigger than the hollow one. B) the hollow sphere becomes bigger than the solid one. C) the two spheres remain of equal size. D) the solid sphere becomes heavier and the hollow one becomes lighter. E) the solid sphere becomes lighter and the hollow one becomes heavier.
Suppose an astronomer proposed to build a major observatory on the campus of your school. Would it make a good observing site? Explain why or why not
What will be an ideal response?
What is a characteristic of all terrestrial planets? a. They all have water
b. They all have a rocky surface. c. They all have a thick atmosphere. d. They all have weather patterns. e. They all have a very geologically active surface.
Photoelectric Effect: Light with a frequency of 8.70 × 1014 Hz is incident on a metal that has a work function of 2.80 eV. What is the maximum kinetic energy that a photoelectron ejected in this process can have? (1 eV = 1.60 × 10-19 J, h = 6.626 × 10-34 J ? s)
A. 8.7 × 10-19 J B. 3.1 × 10-19 J C. 1.3 × 10-19 J D. 2.4 × 10-19 J E. 4.5 × 10-19 J