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ki77a [65]
3 years ago
9

Hằng số phổ biến chất khí

Engineering
1 answer:
drek231 [11]3 years ago
7 0

Answer:

Business activities may broadly be classified into two categories namely (A) Industry and (B) Commerce. Industry involves production of goods and services whereas commerce is concerned with the distribution of goods and services.

Explanation:

hope helps

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Three parallel three-phase loads are supplied from a 480V (line-line RMS), 60 Hz three-phase supply. The loads are as follows: L
Travka [436]

Answer:

The total system active power P = P_1 + P_2 + P_3 = 34.91 KW

Explanation:

Load 1: Active power P_1 = 20 HP = 14.91kW;

Reactive power Q1 = P tan(\phi)

                               = 14.91\times tan(cos^{-}0.8) = 11.18 kvar


Load 2: Active power P_2 = 20 kW;

Reactive power Q2 = 0 since the load is purely resistive.

Load 3: Active power P_3 = 0 due to purely capacitiveload

           Reactive power Q_3 = -20 Var

a) since all three loads are connected in parallel therefore

    The total system active power P = P_1 + P_2 + P_3 = 34.91 KW

Total system reactive power Q = Q_1 + Q_2 + Q_3 = 11.18 + 0 -20 = -8.82 kVar

Since Q = 0, the power factor is unity.

Supply current per phase is given by

I = \frac{P}{\sqrt{3}V_{L}}

= \frac{34910}{\sqrt{3}\times 480} = 41.99 A

5 0
3 years ago
4 grams of a saturated liquid are converted to a saturated vapor by being heated in a weighted piston–cylinder device arranged t
antiseptic1488 [7]

Answer:T2= 351.6k

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4 years ago
What do the cells and tissues of the endocrine system release to help maintain homeostasis in the body?
kaheart [24]
Glands. hope this helps!!
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3 years ago
if you’re disassembling a master cylinder and the front piston assembly is stuck in the master cylinder you can
lianna [129]

Answer:

Put water in the cylinder then push the piston inward

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When water is put it displaces all the air making it possible for the piston to be pulled easier and without distraction

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Describe how you might use the concept of parts presentation to help a classroom full of children complete a craft project. Disc
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Encouraging your preschooler’s creative play

For your preschooler, time, materials and space to be creative are very important.

Preschoolers like to be spontaneous in their creative play, so it’s good to follow your child’s lead. But there’ll also be times when your child wants you to be more involved in her creative activities. By being actively involved, you can develop your child’s skills and understanding.

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