The current flowing through a 470 2 resistance is 4 A. Determine the energy dissipated in a time of 2h. Express your answer in both joules and in commercial units ​

Does heating a metal wire increase or decrease its electrical resistance? why?

Object a has a length of 3 cm, a width of 2 cm, and a height of 4 cm. object b is dropped into a graduated cylinder. it displaces 19 ml of water. the volume of object a is: a: greater than the volume of object b b: less than the volume of object b c: equal to the volume of object b

Is the vertical component of velocity ever zero?