This graph shows a gravitational wave signal recorded by the gravitational wave detectors (called LIGO) in two locations. What do models indicate was the cause of this signal?
A) the merger of two black holes in a distant galaxy
B) a supernova in a distant galaxy
C) the sudden explosion of an entire galaxy
D) an x-ray burst on the surface of a neutron star
A) the merger of two black holes in a distant galaxy
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A nearsighted person has a far point of 18 cm. What power contact lenses will allow this person to comfortably see distant objects clearly?
A) +5.6 diopters B) -5.6 diopters C) +0.056 diopters D) -0.056 diopters
According to the theory of relativity, the speed of light is absolute (meaning that everyone always measures it to have the same value)
Indicate whether the statement is true or false
The three types of plate boundaries are called convergent, divergent, and ______________ boundaries
a. strike b. slip c. transform d. none of these
A feather and a coin will have equal accelerations when falling in a vacuum because
A) their velocities are the same. B) the force of gravity is the same for each in a vacuum. C) the force of gravity does not act in a vacuum. D) the ratio of both the feather's and coin's weight to mass is the same. E) none of the above