Which of the following features is not a feature of central dominant galaxies?
A) They are often spiral galaxies.
B) They often have multiple galactic nuclei near their centers.
C) They are thought to form by the merger of several smaller galaxies.
D) They're found in clusters of galaxies.
A
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A solid sphere, a solid cylinder, a spherical shell, and a hoop all have the same mass and radius. Each are rolling on a horizontal surface with the same center of mass speed, and then they roll up identical inclines. Which one goes the greatest distance up its incline?
a. the hoop b. the solid sphere c. the spherical shell d. the cylinder e. They all go the same distance up their inclines.
When water boils in Denver, Colorado (elevation 5,200 ft) is its temperature greater than, less than, or equal to the temperature of boiling water in Dallas, Texas (elevation 450 ft).
A. greater than B. less than C. equal to
A sunbather on the clear day is receiving about 500 watts of solar power
Indicate whether the statement is true or false
A certain speed boat weighs 4,900 N. It can accelerate from 0 to 20 m/s in 5 seconds. (a) What is the mass of the boat? (b) What is the acceleration? (c) How large is the net force acting on the boat?