1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ruslelena [56]
3 years ago
15

A pin fin of uniform cross-sectional area is fabricated of an aluminum alloy (k = 160W m-1 K-1 ). The fin diameter is D = 4 mm,

and the fin is exposed to convective conditions characterized by h = 220W m-2 K-1 . It is reported that the fin efficiency is ?f = 0.65. Account for convection heat transfer at the fin tip.
Questions: (a) What is the length of the fin, L?

(b) What is the fin effectiveness ?f?

Engineering
1 answer:
disa [49]3 years ago
4 0

Answer: (a) 36.18mm

(b) 23.52

Explanation: see attachment

You might be interested in
Which bulb has the lowest total cost of operation? (a) Incandescent (b) Fluorescent (c) LED
Finger [1]

Answer: LED have the lowest cost of operation.

Explanation:

If we ignore the initial procurement cost of the items the operational cost of any device consuming electricity is given by

Cost=Energy\times cost/unit

Among the three item's LED consumes the lowest power to give the same level of brightness as compared to the other 2 item's thus LED's shall have the lowest operational cost.

6 0
3 years ago
Which one is suitable for industries petrol engine or diesel engine and why?
klio [65]

Answer:

diesel engine

Explanation:

because diesel is stronger than petrol

3 0
3 years ago
Read 2 more answers
Which principle of the software engineering code of ethics has gilbert violated?.
Yuki888 [10]

Answer:

Judgement

Explanation:

Gilbert is required by the Judgement Principle to "disclose those conflicts of interest that cannot reasonably be avoided or escaped." Since Gilbert professionally believes that the software meets specifications, secures documents, and satisfies user requirements, it is not clear if he violated any principle. However, he could have informed his client of his interest in the software and also presented other software packages of different companies from which the client could make its independent choice.

7 0
2 years ago
11. When selecting a route for a long trip, you should
mamaluj [8]

Answer:

b

Explanation:

i think do kill me if im wrong

6 0
3 years ago
Read 2 more answers
List two ways you can make an informal survey
solniwko [45]

The two ways you can use to make an informal survey are:

  • make field observations
  • interview people using informal unstructured techniques

<h3>What are informal surveys?</h3>

In informal surveys can be regarded as a type of survey that can be made by the researcher by going to the field themselves and this can be done by using different methods or ways.

For instance, the researcher can go out to interview people that can give the data that is needed about the research such as informally asking them questions,  unstructured techniques can also be used to solve critical issues.

learn more about survey at: brainly.com/question/6947486

#SPJ9

8 0
1 year ago
Read 2 more answers
Other questions:
  • The 30-kg gear is subjected to a force of P=(20t)N where t is in seconds. Determine the angular velocity of the gear at t=4s sta
    9·1 answer
  • Show how am MDP with a reward function R(s, a, s’) can be transformed into a different MDP with reward function R(s, a), such th
    15·1 answer
  • What is a two stroke engine and what is a four stroke engine, please keep the definitions as simple as can be and please explain
    8·2 answers
  • What is the main purpose of the alternator?
    13·1 answer
  • Water is pumped from a lower reservoir to a higher reservoir by a pump that provides 20 kW of shaft power. The free surface of t
    14·1 answer
  • One of the best ways to find a vacuum leak on a speed-density fuel-injection system is to read the intake air controller (LAC) c
    12·2 answers
  • Which of the following is correct oil viscosity for hybrid electric vehicle?
    10·1 answer
  • What substance do humans give to livestock to help them stay healthy?
    5·1 answer
  • I need help to convert 23.5 million nanometers to millimeters
    15·2 answers
  • Which of the following can cause a flopping sound at the front of the engine
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!