Physics, 03.12.2021 06:20 cailynrachael

A 4600 kg helicopter accelerates upward at 2.0 m/s squared by the upward life (Fa) exerted by the air on the propellers. Assume that there is no air resistance. Calculate the net force of helicopter using Newton's 2nd Law.
Calculate the helicopter's weight?
Calculate the lift-force (Fa) exerted by the air on the propellers
Please I need the answers

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nec chapter 5 contains

c. information on special occupancy areas

nec chapter 6 covers

a. special equipment

which of the following rules contain the words shall or shall not and must be adhered to?

b. mandatory rules

which of the following rules identify actions that are allowed but not required and typically cover options or alternative methods?

c. optional rules

which of the following serves as the introduction to the nec and provides an overview of the book?

a. nec article 90

organizations that test products for safety are

c. nrtls

the nec is published by the

a national fire protection association

the nec is divided into

b. 9 chapters

the nec provides informative annexes for

c. informational materials and examples

two terms from nec article 100 that trainees should become familiar with are

b. labeled and listed

explanation:

Answer from: Quest

the higher the current the higher the mag field around it the higher the influence on the compass

Answer from: Quest

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and here is the information for the technology of geothermal energy:

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-resources of geothermal energy range from the shallow ground to hot water and hot rock found a few miles beneath the earth's surface, and down even deeper to the extremely high temperatures of molten rock called magma

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-a geothermal heat pump system consists of a heat pump, an air delivery system (ductwork), and a heat exchanger-a system of pipes buried in the shallow ground near the building

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-the heat removed from the indoor air during the summer can also be used to provide a free source of hot water

Answer from: Quest

Ithink it’s cancer risk

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A 4600 kg helicopter accelerates upward at 2.0 m/s squared by the upward life (Fa) exerted by the ai...