Abook on a 2 meter high shelf has 20 joules of potential energy. what is the mass of this book ?

Which of the following represents an upright image? a. -do b. +m c. -m d. +do

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

Calculate the amount of heat produced when 18000 coulombs of charge is transferred in one hour through a potential difference of 50v