Se deja caer una pelota de basquetbol desde la parte más alta de un edificio, la pelota choca con el piso al cabo de 2.5 s, luego desde el mismo lugar se deja caer una pelota de béisbol, determine: a) ¿Qué altura tiene el edificio?
b) ¿Cuánto tiempo tarda en llegar la pelota de béisbol al suelo?
c) ¿La velocidad final de la pelota de béisbol al llegar al suelo?

Amachinist needs to remove a tight fitting pin of material a from a hole in a block made of material b. the machinist heats both the pin and the block to the same high temperature and removes the pin easily. what statement relates the coefficient of thermal expansion of material a to that of material b? a) the situation is not possible, heating block b will shrink the hole in the material as the material expands with increasing temperatureb) material b has the same coefficient of expansion as does material ac) material b has a negative coefficient of expansion and a has a positive coefficient of expansiond) material a has a greater coefficient of expansion than does material be) material b has a greate

Suppose that a comet that was seen in 563 a.d. by chinese astronomers was spotted again in year 1951. assume the time between observations is the period of the comet and take its eccentricity as 0.986. what are (a) the semimajor axis of the comet's orbit and (b) its greatest distance from the sun?

Determine the age of a fossil if it had only one eighth of its original carbon-14 content remaining?