It is very cold, but otherwise comfortable. You breathe deeply. Although there is no oxygen, the air pressure is quite tolerable and seems almost Earth-like (because it is mostly nitrogen)
Your vista includes the breathtaking sights of an ocean of liquid methane and methane-snow-capped mountains (although the atmosphere is very smoggy, and the visibility is limited). Your solar day is about 16 Earth days long. A large, ringed object seems to hang in your sky, never rising or setting; however, it does go through phases from new to full and back to new again with the same 16-day period as the rising and setting of the Sun.
You are on Titan, a moon of Saturn. Saturn remains stationary in your sky because Titan rotates synchronously with its revolution about Saturn.
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A projectile's horizontal velocity component (ignoring air resistance)
a. does not change. b. changes most rapidly near the bottom of its trajectory. c. changes at a variable rate. d. changes at a constant rate.
A student has made the statement that the electric flux through one half of a Gaussian surface is always equal and opposite to the flux through the other half of the Gaussian surface. This is
a. never true. b. never false. c. true whenever enclosed charge is symmetrically located at a center point, or on a center line or centrally placed plane. d. true whenever no charge is enclosed within the Gaussian surface. e. true only when no charge is enclosed within the Gaussian surface.
Addition by 1. Components: Three vectors, src="https://sciemce.com/media/4/ppg__cp1pbb0313192044__f15g1q37g6.jpg" style="vertical-align: -5.0px;" />?-5.50 m2.50 m
A. 5.50 m
B. 13.0 m
C. 11.1 m
D. 7.00 m
E. 2.00 m
, 
, and 
, have the components shown in the table. What is the magnitude of the resultant of these three vectors??x componenty component
?3.50 m-4.50 m
?2.00 m0.00 m
A truck moving at 36 m/s passes a police car moving at 45 m/s in the opposite direction. If the frequency of the siren is 500 Hz relative to the police car, what is the frequency heard by an observer in the truck after the police car passes the truck? (The speed of sound in air is 343 m/s.)
a. 361 b. 636 c. 393 d. 396 e. 383