If Venus had the same atmosphere as the Earth, it would
A) only be slightly warmer
B) be at exactly the same temperature
C) be very much warmer
D) be slightly colder
A
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Which of the following is true of the orbits of all the planets in our solar system?
a. They all orbit at the same speed. b. They are all made out of gas. c. They all orbit the Sun in the same direction. d. They have many different orbital inclinations.
Although Saturn and Jupiter have similar compositions their outer appearances are different because
A. Saturn's cooler temperatures allow for the formation of a hazy layer of ammonia clouds that surrounds the planet. B. Saturn has more water molecules throughout its atmosphere giving it a uniform appearance. C. Saturn's smaller size means it has a weaker gravitational field and thus less dramatic atmospheric effects. D. Saturn's magnetic field is weaker than Jupiter's magnetic field.
According to Kepler's Third law a planet's orbital period is directly proportional to the cube of its:
a.semi-major axis b. focus c. ellipse d. circumference
What size capacitor should be placed in series with a 30-? resistor and a 40-mH inductive coil if the resonant frequency of the circuit is to be 1.0 kHz?
A) 3.3 µF B) 0.63 µF C) 6.0 µF D) 4.5 µF E) 2.0 µF