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Serga [27]
3 years ago
5

1. The inlet section of a vacuum cleaner is a rectangle, 1 in by 5 in. The blower is able to provide suction at 25 cubic feet pe

r minute. (a) What is the average velocity at the inlet, in m/s
Physics
2 answers:
adoni [48]3 years ago
7 0

Answer:

average velocity at the inlet = 3.66 m/s

Explanation:

given data

discharge Q =  25 ft³ /min = \frac{25}{60}  = 0.417 ft³  

vacuum cleaner = 1 in by 5 in = \frac{1}{12} \ by\   \frac{5}{12}   ft

solution

we know discharge that is express as

Q = Area × Velocity   .............1

put here value and we will get  average velocity at the inlet

average velocity at the inlet = \frac{0.417}{\frac{1}{12} \frac{5}{12} }  

average velocity at the inlet = 3.66 m/s

Reil [10]3 years ago
3 0

Answer:

The average velocity at the inlet is 3.66 m/s.

Explanation:

Given that,

Width = 1 in

Length = 5 in

Flow rate = 25 feet³/m

We need to calculate the average velocity at the inlet

Using formula of velocity at the inlet

v_{in}=\dfrac{Q}{A_{in}}

Where, Q = flow rate

A = area

Put the value into the formula

v_{in}=\dfrac{\dfrac{25}{60}}{\dfrac{1}{12}\times\dfrac{5}{12}}

v_{in}=12\ ft/s

v_{in}=12\times0.3048

v_{in}=3.66\ m/s

Hence, The average velocity at the inlet is 3.66 m/s.

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Listed as follows are eight technical accounting terms introduced in this chapter. Realization principle Credit Time period prin
Katen [24]

Answer:

1) Accounting period (2) Accounting cycle (3) None (4) Net income (5) Realisation principle (6) Credit (7) Matching principle (8) Expenses

Explanation:

Accounting period : This is the period of time in which the preparation of income statement must covered. The business community and users of finnancial statements require that the business be divided into accounting period (yearly or quarterly ) so that the position of the business can be measured over those period.

Accounting cycle : This shows the sequence of account that must be prepared in order to record, classify, and summarize accounting information. The cycle starts with the recording of the transaction, jounalizing the transaction, posting the transaction to the ledger, preparation of trial balance from the ledger in order to check the arithmetical accuracy of entries in the ledger, and the preparation of financial statement from the trial balance.

Net income : This is used for the recording of operations of the business to determine the profitability of the business. When there is an increase in owners equity resulting from profitable operations it is known as Net income.

Realization principle : This principle established the rule for the periodic recognition of revenue as soon as it is capable of objective measurement, and the value of asset received or receivable in exchange is reasonably certain. It is possible to recognize revenue at a variety of points.

Credit : This is used to show the decrease in asset or increase in liability or owners equity account.

Matching principle : This principle states that expenses and revenue should be assigned to their correct accounting period. It states that all expenses earned during the financial period either paid for or unpaid and all income earned either received or not received must be recorded and treated in that financial period.

Expenses: This is the amount of money spent in the performance of business activities, example of these is the cost of goods and services used up in the process of generating revenue for the business.

8 0
3 years ago
A snow ball is thrown upward at a speed of 27 m/s. How high is the snow ball 3.5 seconds later? Also, how fast is it moving at t
JulijaS [17]

Answer:

Dy = 111.66 [m]

t  = 3.5 [s]

Explanation:

To solve this problem we must use the equations of kinematics.

v_{f} = v_{o} - (g*t)\\

where:

Vf = final velocity [m/s]

Vo = initial velocity = 27 [m/s]

g = gravity acceleration = 9.81 [m/s²]

t = time = 3.5 [s]

Note: The negative sign of the equation means that the gravity acceleration goes in opposite direction

Vf = 27 - (9,81*3,5)

Vf = - 7.33 [m/s] (this negative sign indicates that at this moment the snowball is going downwards)

To find how high the snowball was we must use the following equation:

Dy=v_{o} *t+\frac{1}{2}*g*t

Dy = (27*3.5) + (0.5*9.81*3.5)

Dy = 94.5 + (17.16)

Dy = 111.66 [m]

5 0
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Answer:

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Also it can be determined by simple computer test If you rotate your glasses sideways while looking at a computer monitor through polarized glasses, portions of your screen will become blank or go dark. The same also applicable to LCD display screens such as the ones on a gas pump.

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What is the test for whether or not a moving object is in equilibrium?
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It is in equilibrium if its velocity is not changing.

3 0
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devlian [24]

The answer is "the product of the object's moment of inertia and the object's angular velocity.

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