What is a "hypernova," and how do they produce observable gamma ray bursts?
What will be an ideal response?
A star more massive than 20 solar masses can exhaust its nuclear fuel and collapse directly into a black hole. Models show that if the star is rotating rapidly, the conservation of angular momentum would increase that spin during the collapse. This would slow the equatorial portions of the star, allowing the poles of the star to collapse more quickly.
The difference in collapse would focus beams of intense radiation and ejected gas along the axis of rotation. If the beams were pointed at Earth, a powerful gamma-ray burst would be detected. This particular scenario of GRB creation is termed a "hypernova.".
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A(n) ____________________ uses a mirror as its objective
Fill in the blank(s) with correct word
Young's Modulus: A 50-kg bucket of concrete is suspended from a steel wire that is 1.0 mm in diameter 1.0 mm and 11.2 m long. What distance will the wire stretch? Young's modulus for steel is 2.0 × 1011 Pa.
Fill in the blank(s) with the appropriate word(s).
Explain why the early Earth did not form with water, and how it gained it later in its formation
What will be an ideal response?
A non-uniform meter stick is found to balance on a knife edge at the 60-cm mark. Where is the center of gravity of the meter stick?
A. at the 40-cm mark B. at the 45-cm mark C. at the 50-cm mark D. at the 55-cm mark E. at a position not given