Explain the difference between mass and weight.

What will be an ideal response?


Mass is a fundamental property but weight is actually a force (mass times acceleration). The mass of something does not change; the weight does. Your mass on earth is the same as your mass on the moon, but your weight is different because the acceleration due to gravity is different.

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Maintaining a(n) ____ power factor provides a more efficient operation.

A. low B. high C. zero D. negative

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Which of the following is characterized by smooth round bodies that are not segmented?

a. Protozoa c. Nematodes b. Fungi d. Earthworms

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Some bottom rollers will be double flanged because:

a. they will have less rolling resistance b. they can contact the track pads on side slopes c. they will last longer d. they can help guide the track better

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How often should ladder service testing be performed?

a. annually b. quarterly c. monthly d. semi-annually

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