R=a+b where R' a and b are non zero vectors .if R=a=b the angle btw R. and a is .?​​

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

Aperson touches a large chunk of ice with their hand and remarks, “this is making me cold.” explain what this person is feeling. is the ice transferring “cold” to the person? is there a heat transfer occurring? explain.

In an experiment, a die is rolled continually until a 6 appears, at which point the experiment stops. what is the sample space of this experiment. let en denote the even that n rolls are necessary to complete the experiment. what points of the sample space are contained in en? describe the event (∪ ∞ n=1en) c .