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podryga [215]
3 years ago
8

Explain the relationships among speed, frequency, and the number of poles in a three-phase induction motor

Business
1 answer:
Triss [41]3 years ago
5 0

The synchronous speed (rpm) equals 60 times the frequency divided by the number of pole pairs. For 50Hz, a two-pole motor will have a synchronous speed of 3000 rpm, a four-pole motor of 1500 rpm.

The actual speed is a few percent lower due to the slip of the asynchronous motor.


The slip increases with the torque, typical values are 5–10%. The rated speed for a four-pole motor at 50Hz will thus be something like 1360 rpm. At no-load, the slip is very small.
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Economic activities whose location does not rely on factors such as the location of raw materials, transportation costs, and lar
algol13

Answer:

The correct answer is: Footloose Activities.

Explanation:

Footloose Activities are those that do not change in costs regardless of the location where they are performed. In the corporate world, Footloose Industries are usually those that have almost fixed manufacturing costs anywhere around the world and include computer chips production, for instance.

6 0
3 years ago
Kent Manufacturing produces a product that sells for $64.00 and has variable costs of $35.00 per unit. Fixed costs are $348,000.
DedPeter [7]

Answer:

The contribution margin per unit is $33.50

Explanation:

The contribution margin per unit in the case when the machine is purchased is shown below:

= Selling price per unit - variable cost per unit

= $64 - ($35 - $4.50)

= $64 - $30.50

=  $33.50

hence, the contribution margin per unit is $33.50 and the same is to be considered

We simply applied the above formula

7 0
3 years ago
On December 31, Cruise Company has 18,000 units of an inventory item, which cost $46 per unit when purchased on June 15. The sel
Maksim231197 [3]

Answer:

the inventory be reported at on the December 31 balance sheet is $828,000

Explanation:

Here the inventory should be recorded at lower of cost or net realizable value

Since the cost per unit is $46

And, the net realizable value is $48

So, the lowest cost per unit is $46

Now the ending inventory reported is

= 18,000 units × $46 per unit

= $828,000

hence, the inventory be reported at on the December 31 balance sheet is $828,000

6 0
2 years ago
Suppose workers in Freecia can produce two bushels of rice with the same amount of effort it takes them to produce one memory ch
Reika [66]

Answer:

Freecia has a comparative advantage in producing memory chips

Explanation:

Comparative advantage occurs when a company has an advantage over the other through the production of certain goods at a cheaper rate.

Looking at the given example , let us assume that the cost of producing a bushel of rice is $10 and memory chips is $10

Warmia produces two bushels of rice at $70 and a memory chip at $70(ratio 2:1) 1/3*70= 23.3

Freecia produces five bushels of rice at $70 and two memory chips at $7

(Ratio 5:2). 2/7*70=14

We can see that the cost of producing memory chips is cheaper fo Freecia

8 0
3 years ago
During its 2021 fiscal year, Jacobsen corporation reported before tax income of 620,000
mixer [17]

Income before tax is the income that is before it has been taxed or before applying deduction.

<u>Explanation:</u>

An individual or organization's salary before taxes and deductions is before tax income for that company, organisation or for a single individual.

For singular pay, it is determined as the person's wages or pay, venture and resource gratefulness, and the sum produced using some other wellspring of pay. In an organization, it is determined as incomes less costs.

6 0
3 years ago
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