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.
Answer:
$32,000
Explanation:
Net advantage = Annual operating cost
Net advantage = [(Old machine - New machine)*10 life] - New machine cost + Old machine cost
Net advantage = [($320000 - $240000)*10] - $800000 + $32000
Net advantage = [($80000)*10 - $768,000
Net advantage = $800,000 - $768,000
Net advantage = $32,000
So, the net advantage of replacing the old machine is $32,000
Price of share is $12.2. Future dividend is therefore expected to grown by 4.5%. To find the rate of return i.e. K, we will do the following steps:
= 0.36(1.045)/12 = 0.03135+4.5 = 4.53135
Therefore, rate of return is 4.53%.
<u>Answer:</u> Option B The purchasing power of your salary increased between 2009 and 2018.
<u>Explanation:</u>
CPI is the acronym for Consumer Price Index. CPI measures the average change in price of the consumer products and services. This can also be called as inflation. The price level that prevails in the economy can be measured and also the purchasing power of the individuals can also be determined.
As in this case the CPI has increased denoting the inflation in the economy. The purchasing power has also increased due to the rise in the salary from 2009 to 2018.
Answer:
The correct answer to the following question is category specialist.
Explanation:
Here Bertone's office supplies can be said as category specialist stores, these are those discount stores which specializes in particular product category. That's why these stores are also called discount specialist stores. The reason why these stores are able to offer low prices is because they are using their buying power to negotiate the terms and conditions like getting the supply at low prices.
