Answer:it is electric current
Explanation:
Answer:
Explanation:
Given
mass of hot metal 
specific heat 
mass of water 
Temperature pf water 
Final Temperature 
let
be the temperature of hot metal ball
Heat lost by heat metal bolt is gained by water in calorimeter
Heat lost by hot metal bolt 

Heat gained by water 





B)H+ and e- i hope this helps you<span />
Answer:
Magnetic field lines can be drawn by moving a small compass from point to point around a magnet. At each point, draw a short line in the direction of the compass needle. Joining the points together reveals the path of the magnetic field lines.
Explanation: