A step-down transformer has 1027 turns on the side which draws from a high voltage line (2201 V). How many turns does it need on the low voltage side to supply a house with current at 120 V?

6. Oxygen has an atomic number of 8. What can you conclude from this fact? a. An atom of oxygen weighs 8 grams. b. An atom of oxygen has 4 protons and 4 electrons. c. An atom of oxygen has 8 positrons. d. An atom of oxygen has 8 protons.

There would be a change in the day and night cycle on earth if there was a change in the?

1. Sobre a queda-livre, assinale V para verdadeiro e F para falso A. () As acelerações dos corpos em queda-livre, dependem das massas dos corpos B.

What formula relates mass volume and density?

Which of the following best explains why snow predictions by meteorologists are sometimes incorrect? A. Weather data are misinterpreted. B. Weather instruments are extremely precise. C.

Consider two rocks with masses of 1 and ten kilograms. What is the relation between their inertia's? Between their masses? Between their weights on earth?

If a cart of 4 kg mass has a force of 8 newtons exerted on it, what is its acceleration?

Why does the liquid thermometer work?

What energy do electrons have when they are farther away from the nucleus?

200 525000 lololo Boat A is 10 km north of a port. Boat B is 5 km east of the same port. Boat A sails in a straight line towards boat B. Work out the bearing on which boat A sails.