What is the uncertainty in determining the momentum of an electron if the speed of the electron is 6000 m/s within an accuracy of 0.004%?
A) 1.09 × 10-31 kg?m/s
B) 1.31 × 10-31 kg?m/s
C) 2.19 × 10-31 kg?m/s
D) 3.21 × 10-31 kg?m/s
E) 4.38 × 10-31 kg?m/s
C
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Which moon is rich in organic molecules but too cold to support chemical evolution?
a. Europa b. Titan c. Enceladus d. Io e. Ganymede
Which of the following statements about our Sun is not true?
A) The Sun's diameter is about 5 times that of Earth. B) The Sun is a star. C) The Sun contains more than 98% of all the mass in our solar system. D) The Sun is made mostly of hydrogen and helium.
Which of the following observatories is most likely to discover a black hole in a binary system?
A) an x-ray observatory in space B) the Hubble Space Telescope C) an infrared observatory in space D) a radio telescope array on the ground
An empty spice bottle has an inner volume of 1.31 × 10^-4 m3 . It has a mass of 112 g when filled with air, and it displaces 1.63 × 10^-4 m3 of water when fully submerged. What volume of mercury (rHg = 13.6 × 10^3 kg/m3) must be added to the empty bottle so that it will just submerge?
a. 3.75 cm3 b. 12.0 cm3 c. 101 cm3 d. 147 cm3 e. 237 cm3