The diagram below shows a cell phone inside a glass jar that is sealed and connected to a vacuum pump. The vacuum pump is turned on and removes the air from inside the jar. Which of the following statements explains what happens when someone calls the cell phone?

To protect all four receptacles on a branch circuit that surrounds a swimming pool, you would install which of the following configurations? a. gfci feed-through receptacle at the end of the load's circuit b. gfci-terminated receptacle at the beginning of the load's circuit c. gfci feed-through receptacle at the beginning of the load's circuit and the other receptacles connected to the load side of that receptacle d. gfci-terminated receptacle at each end of the load's circuit

If steel is more dense that lake water, why can a boat float

Looking at this barometer, is the air pressure high or low? what type of weather would you expect? high, bad low, bad high, good low, good