Which of the following is most unlikely to be found on Titan?
A) lakes of liquid water in the warmer equatorial regions
B) lakes of liquid methane ethane
C) rain or snow consisting of methane or ethane droplets or ice crystals
D) volcanic outgassing of methane and other gases
A) lakes of liquid water in the warmer equatorial regions
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Suppose that the Sun—Earth distance were 10 AU instead of 1 AU. Then the energy of sunlight received per square meter on Earth each second would be ________ it is today.
A) 10 times as great as B) about the same as C) 1/100 as much as D) 100 times as great as E) 1/10 as much as
Ripples in the Cosmic Microwave Background correspond to
A) matter density fluctuations. B) temperature fluctuations. C) energy fluctuations. D) fluctuations in both matter and radiation. E) imperfections in measurement techniques or equipment.
When a car goes around a banked circular curve at the proper speed for the banking angle, what force cause it to follow the circular path?
A) the normal force exerted by the road on the car perpendicular to the road's surface B) the friction force exerted by the road on the car C) the force that Earth exerts on the car D) No force causes the car to do this because the car is traveling at constant speed and therefore has no acceleration.
Clocks on fast-moving spaceship shizzing past Earth appear to run slow when viewed from
A) inside the spaceship. B) Earth. C) Both of these. D) Neither of these.