10 pointss In order to see people through a window, the light waves from outside must be through the window.

a. transmitting
b. refracting
c. absorbing
d. reflecting

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.

Individuals who live below the poverty line get seriously ill more often than those who do not what could be the hidden variable in this situation?

Two point charges are on the y axis. a 3.90-µc charge is located at y = 1.25 cm, and a -2.4-µc charge is located at y = −1.80 cm. (a) find the total electric potential at the origin. v (b) find the total electric potential at the point whose coordinates are (1.50 cm, 0). v