On some early automobiles both headlights failed when one bulb burned out. The headlights were likely connected in
A) parallel.
B) perpendicular.
C) series.
D) haste.
Answer: C
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What mission landed on Titan in early 2005?
A) Galileo's probe B) Huygens C) New Horizons D) Rover Spirit E) Cassini orbiter
Kepler's Third Law of planetary motion states that
A) the further a planet is from the Sun, the faster it moves in its orbit B) an imaginary line joining the Sun and planet sweeps out equal areas in equal times C) the further a planet is from the Sun, the slower it moves in its orbit D) the orbits of planets are ellipses
The rear window in a car is approximately a rectangle, 2.1 m wide and 0.45 m high. The inside rearview mirror is 0.55 m from the driver's eyes, and 1.70 m from the rear window.
a) What is the minimum length for the rearview mirror if the driver is to be able to see the entire width and height of the rear window in the mirror without moving her head? b) What is the minimum height for the rearview mirror if the driver is to be able to see the entire width and height of the rear window in the mirror without moving her head?
The intensity at a distance of 6.0 m from a source that is radiating equally in all directions is 6.0 × 10-10 W/m2. What is the power emitted by the source?
A) 2.1 × 10-8 W B) 2.7 × 10-7 W C) 2.1 × 10-6 W D) 2.7 × 10-5 W