A spinning neutron star has been observed at the center of a
A) planetary nebula.
B) supernova remnant.
C) red supergiant.
D) protostar.
B
You might also like to view...
Potassium-40 decays into daughter isotopes with a half-life of _____
A) 1.25 billion years B) 1.5 billion years C) 1.75 billion years D) 2 billion years
Resistance and Resistivity: A 1.0-m length of nichrome wire has a radius of 0.50 mm and a resistivity of 1.0 × 10-6 ? ? m. When this wire carries a current of 0.50 A, what is the voltage across its ends?
A. 0.0030 V B. 0.32 V C. 0.64 V D. 1.6 V
The surface temperature of the Sun can be measured using ________.
A. Bode's rule B. the Doppler shift C. Wien's law D. Kepler's third law
A charged particle is injected into a uniform magnetic field such that its velocity vector is perpendicular to the magnetic field lines. Ignoring the particle's weight, the particle will
A) follow a spiral path. B) follow a circular path. C) move in a straight line. D) move along a parabolic path.