You find yourself in a maelstrom, whipped by winds gusting at 10,000 km/hr, rising and falling in convective currents

On the rare occasions when you can assess your surroundings, you notice a horizon that seems to go on "forever" (or, at least, much farther than the horizon on Earth), and no solid surface anywhere. You get a glimpse of several large moons. The Sun races through your sky, requiring only about 5 hours to rise nearly due east, cross the meridian at an altitude of about 55° in the north, and then set due west.


You are in the Great Red Spot on Jupiter. This immense storm is found at a latitude of about 35°S on Jupiter. To understand the motion of the Sun through the sky, recall that, because Jupiter has only a very slight axis tilt (3°), the celestial equator and the ecliptic are nearly coincident.

Physics & Space Science

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Why did the era of nucleosynthesis end?

A) Too many heavy elements were produced. B) Neutrinos carried off too much energy. C) The temperature of the universe became too low. D) The density of the universe became too low.

Physics & Space Science

A kid slides down an icy (frictionless) hill starting from rest. At the top his gravitational potential energy is 500 J.Suppose after reaching the bottom he then continues sliding up another icy slope on the other side of the valley. When he finally comes to a stop he will have reached a height

a. equal to the height he started from on the other hill. b. less than the height he started from on the other hill. c. more than the height he started from on the other hill. d. none of the above

Physics & Space Science

A 0.50-kg mass is attached to a spring of spring constant 20 N/m along a horizontal, frictionless surface. The object oscillates in simple harmonic motion and has a speed of 1.5 m/s at the equilibrium position

(a) What is the amplitude of vibration? (b) At what location are the kinetic energy and the potential energy the same?

Physics & Space Science

What is the composition of the lunar regolith?

A. olivine and silicon dioxide B. silicon dioxide and anorthosite C. anorthosite and basalt D. basalt and olivine

Physics & Space Science