The vertical displacement of a string is given by y(x,t) = (6.00 mm) cos[(3.25 m-1)x – (7.22 s-1)t]. What is the period of the wave?
A) 7.22 s
B) 1.93 s
C) 0.870 s
D) 0.308 s
E) 0.139 s
C
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These diagrams represent four possible models for the universe. Which model presumes the existence of some type of dark energy in the universe?
A) accelerating universe B) coasting universe C) critical universe D) recollapsing universe E) All four models assume the existence of dark energy.
The main energy source that drives a supernova explosion is ____
a. a shock wave from the collapse of the iron core b. a blast of gravitational waves emanating from the creation of a neutron star c. a burst of neutrinos generated in the core collapse d. energy from the radioactive decay of heavy elements e. fusion of the remaining hydrogen in the star through a chain reaction
______________ will give you information on the surface temperature of the star after you obtain the wavelength of maximum emission from the ________________ spectra
Fill in the blank(s) with correct word
Pluto was named after the Roman god of the dark underworld, and also for ________
Fill in the blank(s) with correct word