Answer:
when 2nd graders ask what 8 x 6 is
Explanation:
Answer:
C is the correct option.
Explanation:
Mass remains the same on Moon as it was on Earth but the weight differs on Moon because of gravity is less on the Moon than on Earth.
DC motors are usually seen in applications where the motor speed needs to be externally controlled. AC motors work best in applications where power performance is sought for extended periods of time. All DC motors are single phase, but AC motors can be single phase or three phase.
AC and DC motors use the same principle of using an armature winding and magnetic field except with DC motors, the armature rotates while the magnetic field doesn’t rotate. In AC motors the armature does not rotate and the magnetic field continuously rotates.
In some applications today, DC electric motors are replaced by combining an AC electric motor with an electronic speed controller, known as variable frequency drives. DC electric motors are replaced with an AC electric motor and an electronic speed controller because it is a more economical and less expensive solution.
DC electric motors have many moving parts that are expensive to replace, and DC electric motor repair is usually more expensive than using a new AC electric motor with an electronic controller.
In our experience, combining an AC motor and drive proves to be the most cost effective solution for mostapplications. When servicing our customers in the field, we often recommend looking at the SMVector Series Variable Frequency Drive in combination with a three phase AC motor.
Perennial plants are plants that have a live cycle of more than two years or can live for more than two years while annual crops are crop that only last for one years and are replanted every year. Perennial plants are mostly trees while annual plants are mostly crops.
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Audio formats such as mp3, ogg vorbis, and AAC have good sound quality even though they use Lossy compression.
This refers to the compression of data in which some parts of that information is lost in the process. After that, when you compress it again, that data returns to its normal state.