What is the specific hear of a subatance if 6240 cal are required to raise the temperature of a 500 g sample by 69 C? 0.018cal/goC

0.18cal/goC

0.54cal/goC

1.18cal/goC

How much energy moves onto the next level, in an energy pyramid

Sulfuric acid (a component of acid rain) reacts with limestone (calcium carbonate) to produce calcium sulfate and carbon dioxide. this damages buildings and statues made of limestone. which solution of sulfuric acid will damage these structures more quickly? a. 0.001% b. 0.005% c. 0.010% d. 0.015%

Aradio signal from a gps satellite take only about 0.067 seconds to reach a gps reciever. if the speed of light is about 300,000km/s, then approximately how far away is the reciever from from the satellite?