Light from a laser forms a 1.31-mm diameter spot on a wall. if the light intensity in the spot is what is the power output of the laser?

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

This is the number of complete movements of a wave per second.

Convection occurs when thermal energy is transferred by the movement of