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2 years ago

if you help then I will thank u by sooo much I will give tons of points but the answer has to be right.

Engineering

2 answers:

romanna [79]2 years ago

8 0

Answer:

The first one A, " These are lines of equal air pressure".

Explanation:

emmainna [20.7K]2 years ago

8 0

Answer: A
Isobars are lines on a weather map joining together places of equal atmospheric pressure.

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A manufacturer makes two types of drinking straws: one with a square cross-sectional shape, and the other type the typical round

Harlamova29_29 [7]

Answer:

$\frac{Q_{square}}{Q_{circle}} = 0.785$

Explanation:

given data

types of drinking straws

square cross-sectional shape
round shape

solution

we know that both perimeter of the cross section are equal

so we can say that

perimeter of square = perimeter of circle

4 × S = π × D

here S is length and D is diameter

S = $\frac{\pi D}{4}$ ....................1

and

ratio of flow rate through the square and circle is here

$\frac{Q_{square}}{Q_{circle}} = \frac{AV^2}{AV^2}$

$\frac{Q_{square}}{Q_{circle}} = \frac{S^2}{\frac{\pi D^2}{4}}$

$\frac{Q_{square}}{Q_{circle}} = \frac{(\frac{\pi D}{4})^2}{\frac{\pi D^2}{4}}$

$\frac{Q_{square}}{Q_{circle}} = \frac{\pi }{4}$

$\frac{Q_{square}}{Q_{circle}} = 0.785$

4 0

3 years ago

Is santa real or nah is santa real or nah

Elena L [17]

Answer:

nah

Explanation:

3 0

2 years ago

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When watching your weight, you want to snack smart. To do that, you want a snack that is going to __________.

andreev551 [17]

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2 years ago

Dear sir i want to ask something about the solution of my question?

Eva8 [605]

No you may not ask the question

3 0

2 years ago

The Clausius inequality expresses which of the following laws? i. Law of Conservation of Mass ii. Law of Conservation of Energy

DanielleElmas [232]

Answer:

(iv) second law of thermodynamics

Explanation:

The Clausius inequality expresses the second law of thermodynamics it applies to the real engine cycle.It is defined as the cycle integral of change in entropy of a reversible system is zero. It is nothing but mathematical form of second law of thermodynamics . It also states that for irreversible process the cyclic integral of change in entropy is less than zero

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3 years ago