Observations have shown that when the mass of the central black hole is large, then
A) the mass of the halo and disk of the host galaxy is also large.
B) the host galaxy is eventually completely consumed by the black hole.
C) the galaxy is always a spiral galaxy.
D) the mass of the bulge of the host galaxy is also large.
D) the mass of the bulge of the host galaxy is also large.
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A 5.0-kg block is attached to an ideal massless spring whose spring constant is 125 N/m. The block is pulled from its equilibrium position at x = 0.00 m to a position at x = +0.687 m and is released from rest
The block then executes lightly damped oscillation along the x-axis, and the damping force is proportional to the velocity. When the block first returns to x = 0.00 m, its x component of velocity is -2.0 m/s and its x component of acceleration is +5.6 m/s2. (a) What is the magnitude of the acceleration of the block upon release at x = +0.687 m. (b) Find the damping constant b.
For the principle quantum number n = 5, what is the greatest number of values the spin quantum number can have?
A. 5 B. 25 C. 11 D. 2 E. 4
A small piece of debris that burns up in the atmosphere is called a
A) meteor B) meteorite C) asteroid D) meteoroid
Given 10 kWh of electricity and assuming no losses, how much work, in joules, could be done?