Gamma rays have a small
A) wavelength.
B) energy.
C) frequency.
D) mass.
A) wavelength.
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The star Wolf 1061 has a parallax of 2.34 arcseconds, while the star Ross 652 has a parallax of 1.70 arcseconds. What can you correctly conclude?
A) Both stars are outside the Milky Way galaxy. B) Wolf 1061 must have a larger proper motion than Ross 652. C) Ross 652 must have a larger proper motion than Wolf 1061. D) Ross 652 is closer to Earth than Wolf 1061. E) Wolf 1061 is closer to Earth than Ross 652.
Determine the resonant frequency of the circuit.
A. 159 Hz B. 32 Hz C. 5 Hz D. 500 Hz E. 79.5 Hz
The average distance from Earth to the Sun is
a. 1 ly. b. 1 million km. c. 1 million miles. d. 1 billion km. e. 1 AU.
A +20-nC point charge is placed on the x axis at x = 2.0 m, and a ?25-nC point charge is placed on the y axis at y = ?3.0 m. What is the direction of the electric field at the origin?
a. 209° b. 61° c. 29° d. 241° e. 151°