What occurs on the surface of the Sun during a solar cycle minimum?
a. decreased temperature of the photosphere
b. reversal in rotation of the Sun
c. little to no solar wind
d. little to no sunspot activity
e. partial dissipation of the corona
d
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_____ is the site of most of the star formation in the Milky Way Galaxy
A) The disk component B) The spherical component C) The central bulge D) A large halo
Pressure is
A) proportional to both force and area. B) proportional to force and inversely proportional to area. C) inversely proportional to force and proportional to area. D) inversely proportional to both force and area. E) proportional only to area.
Which of these relate most to the loudness of sound?
A) wavelength. B) frequency. C) speed. D) amplitude. E) all of the above
A stream of electrons passes through a velocity filter where the crossed magnetic and electric fields are 0.020 T and 5.00 × 10^4 V/m, respectively. Find the kinetic energy (in electron volts) of the electrons passing through the filter. [1 eV = 1.60 × 10^?19 J]