an athlete completes one round of a circular track of radius 'R' in 40 sec what will be his displacement at the end of 4 min

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

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.

The mantle is made up of which structural zones?