An explosion occurs 275 m above an 867-m-thick ice sheet that lies over ocean water. if the air temperature is 27.00°c, how long does it take the sound to reach a research vessel 1 250 m below the ice? neglect any changes in the bulk modulus and density with temperature and depth. (use bice 5 9.2 3 109 pa.)

Was an early church leader as well as a philosopher of his day

Aman lives on the twelfth floor of an apartment building. every morning he takes the elevator down to the lobby and leaves the building. in the evening, he gets into the elevator, and, if there is someone else in the elevator -- or if it was raining that day -- he goes back to his floor directly. otherwise, he goes to the tenth floor and walks up two flights of stairs to his apartment.

What conclusion about early british history and literature can you draw based on the information presented in unsolved mysteries of history? in what way does this conclusion enhance or enrich your understanding of the arthurian legend and its origins