. Se tienen dos varillas, una de aluminio (∝=25 x 10^(-6) (°〖C)〗^(-1)) y otra de cobre (∝=16 x 10^(-6) (°C)^(-1)) de diferente longitud, tienen la misma área transversal, se le suministra a cada una cierta cantidad de calor hasta a que alcanzan la misma temperatura e igual longitud. La varilla de cobre debe ser

Amplitude is a measure of a waves a; speed b; distance c; energy d; frequency

In a system, when potential energy decreases, then entropy also decreases. true false

Aswimming pool whose volume is 10 comma 000 gal contains water that is 0.01% chlorine. starting at tequals0, city water containing 0.003% chlorine is pumped into the pool at a rate of 5 gal/min. the pool water flows out at the same rate. what is the percentage of chlorine in the pool after 1 hour? when will the pool water be 0.006% chlorine?