Via the Rotation Curve Method, We Can Estimate the Mass

question 128

Multiple Choice

Via the rotation curve method, we can estimate the mass of galaxies like M31 from

• A)Doppler shifts of material at the edge of its disk and computing P = 2πr/v.
• B)the distances of the Doppler shift points from its center.
• C)Doppler shifts of material at the edge of its disk and computing P = 2πr/v and the distances of the Doppler shift points from its center.
• D)It is impossible to estimate the mass of M31.

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Basic, involuntary motor responses triggered by specific stimuli that are present from birth.

Sensorimotor Substage

The phases within the first stage of Piaget's theory of cognitive development, characterized by the development of sensory and motor abilities in infants.

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