Write an expression for the x-component of the frictional force the cube experiences, Ff, in terms of the given variables and variables available in the palette.

Which statement correctly describes a step-up transformer? a. it increases the amount of electric energy available. b. it increases the voltage of an electric current. c. it changes direct current into alternating current. d. it has more loops of wire in its primary coil.

Why is it important always to use horizontal bars in unit fractions when performing unit conversions?

The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is as it changes into other forms of energy.