Which of the following statements about circumpolar stars is true at all latitudes?
A) They are the stars close to the north celestial pole.
B) They always remain above your horizon.
C) They make relatively small circles, traveling clockwise around the north celestial pole.
D) Like all other stars, they rise in the east and set in the west.
E) You cannot see them from the Southern Hemisphere.
B
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The nuclide at the top of the "relative stability of nucleus versus mass number" curve is
a. iron-56. b. uranium-235. c. uranium-238. d. helium-4.
Which of the following is (are) conserved in an isolated system?
1.the kinetic energy alone 2.the potential energy alone 3.both the potential energy and the kinetic energy 4.the sum of the kinetic energy and the potential energy
Consider an AC series circuit containing a coil, capacitor, and resistor. Doubling the frequency will change the inductive reactance by what factor?
a. 1.0 c. 1/2 b. 1.41 d. 2.0
Gamma radiation is characterized by greater ability to penetrate materials than alpha or beta
What will be an ideal response?