What does the constellation Cygnus consist of?
A) All the bright stars that lie inside the illustration of a swan on star maps.
B) All of the stars and other objects that lie inside the agreed upon boundary lines.
C) The stars inside of the Summer Triangle.
D) About 9 stars connected by two imaginary lines.
E) The star Deneb.
Ans: B) All of the stars and other objects that lie inside the agreed upon boundary lines.
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Earth's magnetic field is a direct result of its rapid rotation and its molten metallic core
a. True b. False Indicate whether the statement is true or false
The discovery of the cosmic microwave background was important because
A) its detection was a major advance in microwave testing. B) it was experimental verification of a prediction from the Big Bang theory. C) it showed the universe must be closed, with more than the critical density here. D) it established a firm center of the universe. E) it proved that astronomy at radio wavelengths was possible.
An apple weighing 3 newtons hangs, motionless, from a tree branch. Newton's law of force pairs says that forces always come in pairs. One force acting on the apple is the apple's weight
What is the other force that forms a force pair with the weight? A) The apple pulling upward on Earth. B) The apple pulling downward on the branch. C) Earth pulling downward on the apple. D) The branch pulling upward on the apple.
The relationship of wave speed, wavelength, and frequency is given by ______________
Fill in the blank(s) with correct word