Combining a star's proper motion and its distance allows us to determine its transverse velocity
Indicate whether the statement is true or false
TRUE
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The modification of the standard Big Bang theory is known as the
a. cosmic model. b. Hubble-Leavitt model. c. inflationary model. d. Hertzsprung-Russell model.
If the composition of the atmosphere changed so that less terrestrial radiation was allowed to escape, the Earth would experience
A) higher average temperatures. B) lower average temperatures. C) greater atmospheric pressure and higher temperatures. D) no change in pressure or temperature.
An hour of right ascension corresponds to 60 degrees in the sky
Indicate whether the statement is true or false
What does an electroscope do?
a. Measures the amount and sign of the charge of a given object. b. Takes on the opposite charge to an object brought in contact with it. c. Detects if an object is charged. d. Charges nearby objects. e. Responds only to negatively charged objects.