What unit is used to measure force and how is it defined?

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.

Amira pulls a 3 pound wagon 4 feet. how much work has she done?

If y gets smaller as x gets bigger and y have an relationship?