Noting the main sequence turnoff mass in a star cluster allows you to determine its
A) radial velocity.
B) number of stars.
C) distance.
D) total mass.
E) age.
E
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Which force binds together protons and neutrons in a nucleus?
A) strong force B) gravity C) electromagnetic force D) weak force
The sum of the forces exerted on an object of interest is 125 N. As a result, the object accelerates with an acceleration of 24.0 m/s2. The mass of the object is
A) 3000 kg. B) 2880 kg. C) 144 kg. D) 0.200 kg. E) 5.21 kg.
A trapeze artist, with swing, weighs 700 N; he is being held to one side by his partner so that the swing ropes make an angle of 30.0° with the vertical. In such a condition of static equilibrium what is the tension in the rope?
a. 924 N c. 808 N b. 404 N d. 233 N
Define the following terms, as they pertain to website planning: goals, objectives, target audience, and purpose statement.
What will be an ideal response?