Contrast a hypernova and a type II supernova
What will be an ideal response?
A more massive star collapses to a black hole in a hypernova, with bi-polar jets of gamma rays. In a less massive type II event, only a neutron star is left.
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Refracting Telescope: The angular magnification of a refracting telescope is 40. When the object and final image are both at infinity, the distance between the eyepiece and the objective is 143.5 cm. The telescope is used to view a distant radio tower. The real image of the tower, formed by the objective, is 6.0 mm in height. The focal point of the eyepiece is positioned at the real image. What is the angle subtended by the final image of the tower?
A. 0.15 rad B. 0.17 rad C. 0.19 rad D. 0.21 rad E. 0.23 rad
An atom of sodium has an atomic number of 11 and a mass of 23 . How many neutrons does it have?
a. 11 b. 12 c. 23 d. 34 e. 35
Molecular Bonds: In general, which of the following is usually the strongest bond?
A. hydrogen bond B. van der Waals bond C. ionic bond
What surprise about the extent of Jupiter's magnetosphere came from Voyager 2 data?
What will be an ideal response?