What is a so-called "hot Jupiter"?
A) a planet with a mass and composition similar to what we would expect if Jupiter were hotter
B) a planet with a mass similar to Jupiter but very close to the central star and therefore hot
C) a planet with a mass similar to Jupiter but composition similar to Mercury
D) a Jupiter mass planet orbiting a star that is more massive and hotter than the Sun
B
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The work performed as a function of time for a process is given by W = at3 where a = 2.4 J/s3. What is the instantaneous power output at t = 3.7 s?
A) 99 W B) 69 W C) 138 W D) 207 W
A light ray in air strikes a glass plate whose index of refraction is 1.42. Some of the light reflects off the surface of the plate, but most of it enters the glass
If the angle of refraction is one-half the angle of reflection, the angle of refraction is closest to which one of the following angles? A) 45° B) 43° C) 41° D) 39° E) 37°
What happens to the charge that leaves a battery in a complete circuit that includes a light bulb?
a. It goes to the light bulb and gets used up. b. It goes through the light bulb and returns to the other end of the battery. c. It accumulates at the farthest point from the bulb. d. It is lost as heat and light. e. It goes to the light bulb or other object and disperses throughout the system.
An electromagnetic wave with a peak magnetic field component of 1.59 × 10^?7 T has an associated peak electric field component of what value? (?0 = 4? × 10^?7 T?m/A, ?0 = 8.85 × 10^?12 C2/N?m2 and c = 3.00 × 10^8 m/s)
a. 2.10E–2 N/C b. 5.30E–9 N/C c. 4.77E+1 N/C d. 1.89E+8 N/C e. 5.99E–6 N/C