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2 years ago

Why does the pressure go down when the velocity of a fluid increase? Please help asap!

1 answer:

7 0

Answer:It is the conversion of one form of energy to another. If a fluid flow is restricted, the velocity of the fluid reduces, thereby the kinetic energy decreases and the equivalent amount of energy is increased as the pressure energy, which therefore increases the point pressure of the fluid.

Step-by-step explanation:

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A rectangular auditorium seats 2142 people. The number of seats in each row exceeds the number of rows by 9. Find the number of

maxonik [38]

9514 1404 393

Answer:

Step-by-step explanation:

Let s represent the number of seats in a row. Then the number of rows is (s-9) and the total number of seats is ...

s(s-9) = 2142

s² -9s +4.5² = 2142 +4.5² . . . . . complete the square

(s -4.5) = √2162.25 . . . . . . . . take the positive square root

s = 4.5 +46.5 = 51 . . . . . . . add 4.5

The number of seats in each row is 51.

6 0

3 years ago

10. The boys and girls in Mrs. Hall's class are collecting cans for the food drive. The

s344n2d4d5 [400]

Answer:

hope it helps you

this is my answers

6 0

3 years ago

A retail store offers all television sets at 80%, or , of their original price if the customer buys a store membership for $100.

gregori [183]

Answer:

C. The expression is y = 1200x + 100 , and the cost is $1,300.

Step-by-step explanation:

Given :

Let y be the total cost and x be the number of TVs
Membership costs $100
If applied, TV costs 80% of original price

Solving :

y = 1200x + 100 [given x = 1]
y = 1200 + 100
y = 1300
Total cost is $1300

6 0

2 years ago

What is the length of Line segment M N? 58 cm 75 cm 88 cm 116 cm.

fiasKO [112]

Midline theorem states that the cuts along the midline of a triangle creates a segment that is parallel to the base and half of the base.. The length of the line segment MN is 58 cm. Thus the option A is the correct option.

Given information-

The figure for the given problem is attached below.

In the given figure,

$AM=MB$

Thus the M is the midpoint of the line segment AB.

In the given figure,

$BN=NC$

Thus the N is the midpoint of the line segment BC.

<h3>Midline theorem</h3>

Midline theorem states that the cuts along the midline of a triangle creates a segment that is parallel to the base and half of the base.

Thus the length of the line segment MN can be given as,

$MN=\dfrac{1}{2} \times AC\\
$