Write a hypothesis based on observations and scientific principles.

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.

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

The earth exerts a gravitational force of 500 n on amy. what is amy’s mass in kg?