A transformer has a primary coil with 700 turns and a secondary coil with 350 turns. If the output voltage is 410 volts, what is the input voltage? *
a.)245,000 Volts
b.)205 Volts
c.)2 Volts
d.)820 Volts

An object weighs 40n in air, weighs 20n when submerged in water and 30n when submerged in a liquid of unknown density. what is the density of the liquid?

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?

Scientists follow specific processes in order to determine valid explanations and conclusions from observations. david observed strange lights in the sky above his home outside of roswell, new mexico. the only explanation that makes sense to him is that there are ufos in the area. what should david do next to verify his explanation?