Batteries involve the flow of electricity from one metal to another. what happens to these metals to cause the batteries to, eventually, stop working?

Ms. hidalgo opens the door to her classroom. her classroom is 60 degrees and the air outside is 80. predict what will happen using your knowledge of how heat flows.

There are two-speed cameras, one in an are where the speed limit is 30 km/h and another where the speed limit is 50 km/h. in which will there be a smaller time interval between the photographs? explain your answer.

The amount of potential energy possessed by an elevated object is equal to what?