a piece of copper weighing 300g is heated to 100°c and is then quickly transferred into a copper calorimeter of mass 10g containing 100g of liquid with unknown specific heat capacity. if the final temperature of the mixture is 40°c calculate the specific heat capacity of the liquid (room temparature is 10°c) (specific heat capacity of copper is 400jkg/1​

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

Awave that is traveling fast can be said to have a high a. frequency b. speed c. wavelength d. amplitude e. period f. none of these