In an electric motor, the rotating coil of wires wrapped around an iron core is a (n)

brush

transformer

commutator

armature

What is the purpose of the Climate Friendly Farming Project?

The Electromagnetic Spectrum consists of many different waves. What is the order of these ways from lowest to highest frequency?

For water vapor to turn back i to a liquid what do you do to it's temperature

How much energy is required to raise the temperature of 11.4 grams of gaseous helium from 24.2 °C to 38.3 °C?

two identical spheres carry charges of + 0.6 coulomb and - 0.2 coulomb, respectively. if these spheres touch, the resulting charge on the first sphere will be

On the Celsius scale what temperature does water boil

Suppose that, while lying on a beach near the equator of a far-off planet watching the sun set over a calm ocean, you start a stopwatch just as the top of the sun disappears. you then stand, elevating your eyes by a height h = 1.

A night lamp uses a 30 W bulb. If it is left on continuously for 8 hours, how much energy will it use?

If a drag racer wins the final round of her race by going an average speed of 92.5 m/s in 4.5 seconds, what distance did she cover

An airplane flies due west (i. e. in the-X direction) between two airports. For one-quarter of the distance it travels at 650.0 km/h and the rest at 750.0 km/h. What is the average velocity (not speed) of the airplane?