An interaction between a large and a small elliptical galaxy that results in a large spiral and a small elliptical galaxy takes:

A) several thousand years.
B) several hundred thousand years.
C) several million years.
D) several hundred million years.
E) several billion years.


D

Physics & Space Science

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A tiny particle with charge + 5.0 ?C is initially moving at 55 m/s. It is then accelerated through a potential difference of 500 V. How much kinetic energy does this particle gain during the period of acceleration?

A) 1.0 × 104 J B) 2.5 × 10-3 J C) 100 J D) 2500 J

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Magenta light is a mixture of

A) red and blue light. B) red and cyan light. C) red and yellow light. D) yellow and green light. E) none of the above

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Wave velocity is inversely proportional to

a. period. b. wavelength. c. amplitude. d. all of these.

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Laser light of 589 nm wavelength is shown through parallel slits forming a series of maxima on a screen 4.20 m away. If the distance between the central maximum and the first order maximum is 1.67 cm, what is the slit separation?

a.
b.
c.
d.
e.

Physics & Space Science