Pioneer 10 was able to escape the solar system by
A) having a sufficient escape velocity at launch.
B) "bouncing off" Jupiter like a tennis ball bouncing off an approaching tennis racket.
C) refueling via solar cells.
D) nuclear-powered sustained thrust.
Answer: B
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The hole for a bolt in a brass plate has a diameter of 1.200 cm at 20°C. What is the diameter of the hole when the plate is heated to 220°C? The coefficient of linear thermal expansion for brass is 19 × 10-6/°C
(Express your answer to 4 significant figures.) A) 1.205 cm B) 1.125 cm C) 1.195 cm D) 1.200 cm E) 1.210 cm
A probe in space continues in its motion due to
A) very low friction. B) its own inertia. C) it seeking a continued state of motion. D) none of the above
What is the wavelength of the line in the Balmer series of hydrogen that is comprised of transitions from the n = 5 to the n = 2 level? (R = 1.097 × 10^7 m?1 and 1 nm = 10?9 m)
a. 304 nm b. 434 nm c. 476 nm d. 95 nm e. 333 nm
A body in a room at 300 K is heated to 3,000 K. The wavelength of the most intense EM radiation emitted by the body at 3,000 K is the wavelength of the most intense EM radiation at 300 K
a. 0.0001 times b. 0.1 times c. the same as d. 10 times e. 10,000 times