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4 years ago

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A sealed, rigid vessel of 2 m3 contains a saturated mixture of liquid and vapor R-134a at 10C. If it is heated to 50 C, the liqu

id phase disappears. Find the pressure at 50 C and the initial mass of the liquid.

1 answer:

Iteru [2.4K]4 years ago

8 0

Answer: 93.30kg

Explanation:

in the attachment

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Illinois furniture , Inc produces all types of coffee furniture the executive secretary is a chair that has been designed using

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This question is incomplete, the complete question is;

Illinois furniture , Inc produces all types of office furniture. The "Executive Secretary" is a chair that has been designed using ergonomics to provide comfort during long work hours the chair sells for $130. There are 480 minutes available during the day and the average daily demand has been 50 chairs. There are eight tasks.

TASK PERFORMANCE TIME( MIN ) TASK MUST FOLLOW TASK LISTED

A 4 ---------

B 7 ----------

C 6 A,B

D 5 C

E 6 D

F 7 E

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1) What is the cycle time for operation?

2) What is the theoretical minimum number of workstation?

Answer:

1) the cycle time for operation is 9.6 min

2) the theoretical minimum number of workstation is 5

Explanation:

Given the data in the question;

production time per day = 480 minutes

average daily demand = 50

Given the data in the question;

1) cycle time for operation

this is simply referred to as the total time for the process from start to finish.

cycle time = production time per day / units demand per day

we substitute

cycle time = 480 min / 50

cycle time = 9.6 min

Therefore, the cycle time for operation is 9.6 min

2) theoretical minimum number of workstation.

theoretical minimum number of workstation = total task time / cycle time

Total task time = ( 4 + 7 + 6 + 5 + 6 + 7 + 8 + 6 ) = 49 min

∴ theoretical minimum number of workstation = 49 min / 9.6 min

theoretical minimum number of workstation = 5.104 ≈ 5

Therefore, the theoretical minimum number of workstation is 5

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Answer:

Saturation current

Isi = 6.91 * 10^-17 A

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Explanation:

Complete question is as follows;

Problem 6.3: In a particular technology, a small BJT operating at vBE = 28VT conducts a collector current of 100

µA. What is the corresponding saturation current?

For a transistor in the same technology but with an emitter junction that is 32 times larger, what is the saturation

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What current will this (second) transistor conduct at vBE = 28VT ?

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