The white-hot sparks from a 4th-of-July-type sparkler that strike your skin transfer

A) little energy to you in spite of their high temperature.
B) little energy to you due to their low temperature.
C) much energy, but at a low temperature.
D) none of the above


Answer: A

Physics & Space Science

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The graph above shows 4 models for how the average distance between galaxies could change with time, from the past (left) to now (middle) to the future (right-hand side). The graph also shows real data, based on white dwarf supernovae. Which model predicts that galaxies had the largest separations in the past?

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When a liquid boils and changes to a gas, it is said to have undergone a change of ________

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Which of the following statements DOES NOT show fundamentally how other realms of physics are interconnected to research in cosmology and astronomy?

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