Which of the following is always true about a 1.2-solar mass white dwarf compared to a 1.0 solar mass white dwarf?
A) The more massive white dwarf has a larger radius.
B) The more massive white dwarf has a smaller radius.
C) The more massive white dwarf has a higher surface temperature.
D) The more massive white dwarf has a lower surface temperature.
E) The more massive white dwarf is supported by neutron degeneracy pressure, rather than electron degeneracy pressure.
B) The more massive white dwarf has a smaller radius.
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Volcanic activity on Venus is thought to be:
A) more frequent, but less violent than volcanic activity on Earth. B) more frequent and more violent than volcanic activity on Earth. C) less frequent, but more violent than volcanic activity on Earth. D) less frequent and less violent than volcanic activity on Earth. E) the same as volcanic activity on Earth.
On a sphere, the interior angles of a triangle add up to ________ 180 degrees
Fill in the blank(s) with correct word
A 4.0-kg block slides down a 35° incline at a constant speed when a 16-N force is applied acting up and parallel to the incline. What is the coefficient of kinetic friction between the block and the surface of the incline?
a. 0.20 b. 0.23 c. 0.26 d. 0.33 e. 0.41
When a 20-V emf is placed across two resistors in series, a current of 2.0 A is present in each of the resistors. When the same emf is placed across the same two resistors in parallel, the current through the emf is 10 A. What is the magnitude of the greater of the two resistances?
a. 7.2 W b. 7.6 W c. 6.9 W d. 8.0 W e. 2.8 W