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krok68 [10]
3 years ago
7

The pointer of the vibration measuring instrument is observed to move between the 0.1 and0.3 marks on the vertical scale, when s

ubject to a displacement alternating at a frequency of100 rad/s. What would the excursion be if the forcing frequency were doubled
Mathematics
1 answer:
Norma-Jean [14]3 years ago
8 0

Answer:

Step-by-step explanation:

Given points moves b/w 0.1 of 0.3 marks Hence amplitude is 0.2

Also , frequency (w) = 100 rad/s.

Natural frequency (wn) = √K/m

K = 20 N/mm x 1000mm/1m = 20000N/M

W = 1000mm/1m = 20,000N/M

FormulaX = FolK/1 - (w/wn)²

0.2 = b/20000/1 - (100/50)²

Given forcing frequency was doubled, W1 = 2 x 100=200rad/s

X1 =b/20,000/1 - (200/20)²

0.2/11 = 1 - (200/50)²/1 - (100/50)² = 0.2/11 = -15^5– 3

X1 = 0.04

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Which country and currency are to be chosen?

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In other words, the task at hand is to convert $15.29 which is the cost of t-shirt to the Denmark Krone whose exchange is Denmark Krone 6.3394

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$1=Denmark Krone 6.3394

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Note that even if exchange rate was rounded to 4 decimal places, it is expected based on norm or industry practice that the final amount in Denmark Krone be rounded to 2 decimal places, in other words, the shirt at the airport gift shop whose cost $15.29 is Denmark Krone 96.93  in Denmark

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3 years ago
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2. Calculate your total variable costs for the summer at each price. a. 35 lawns per weekx 12 weeks x $24.25 variable cost = b.
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Answer:

Total variable costs for the summer at each price:

a. = $10,185

b. = $5,820

c. = $1,455

Step-by-step explanation:

a. 35 lawns per week x 12 weeks x $24.25 variable cost

= 35 * 12 * $24.25

= $10,185

b. 20 lawns per week x 12 weeks x $24.25 variable cost

= 20 * 12 * $24.25

= $5,820

c. 5 lawns per week x 12 weeks x $24.25 variable cost

= 5 * 12 * $24.25

= $1,455

d. The variable cost, as can be seen from above, changes based on the volume of activity or production.  The number of lawns influenced the cost, since the other indexes are the same in each case.

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Answer:

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