That we do not get eclipses every new and full Moon is due to the ________ degree tilt of the Moon's orbit, relative to the ecliptic
Fill in the blank(s) with correct word
5.2 (or just 5)
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Five moles of an ideal gas expands isothermally at 100°C to five times its initial volume. Find the heat flow into the system
a. 2.5 × 10^4 J b. 1.1 × 10^4 J c. 6.7 × 10^3 J d. 2.9 × 10^3 J e. 7.0 × 10^2 J
For electrical safety,
a. electrical shocks caused by 1 A of current are of no concern. b. fuses or circuit breakers are wired in series in circuits. c. fuses larger than the rated value can be placed in a circuit. d. fuses and circuit breakers are wired in parallel in circuits.
Which statement about planetary rings is not true?
A) Saturn's rings formed along with its moons 4.6 billion years ago. B) All four jovian planets have rings. C) Individual ring particles orbit their planet in accord with Kepler's laws, so that particles closer in orbit faster than particles farther out. D) Rings are always located closer to a planet's surface than any large moons.
A typical "shooting star" during a meteor shower is caused by a ________ entering Earth's atmosphere.
A) boulder-size particle from an asteroid B) boulder-size particle from a comet C) pebble-size particle from an asteroid D) pebble-size particle from a comet E) microscopic particle of interstellar dust