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
jekas [21]
3 years ago
11

12) Water flows through a horizontal pipe of cross-sectional area 10.0 cm2 at a pressure of 0.250 atm with a flow rate is 1.00 L

/s. At a valve, the effective cross-sectional area of the pipe is reduced to 5.00 cm2. What is the pressure at the valve? The density of water is 1000 kg/m3, and treat it as an ideal incompressible fluid

Physics
1 answer:
masha68 [24]3 years ago
5 0

Answer:

The pressure after passing the valve is 23,8 [Kpa] ( 0,234 atm) and the pressure drop is about 1,53 [Kpa]

Explanation:

We need to use the formula of bernoulli, in the attached image we can see the fluid throw the pipe, we also can calculate the velocity inside the pipe using the flow rate and the cross sectional area.

For this case, we don't use the elevation difference and therefore those terms can be cancelled.

When the area has reduced the velocity of the fluid is increased but there is a drop pressure through the valve.

You might be interested in
What is the periodic symbol for magnesium
Nookie1986 [14]
The periodic sign of magnesium is ------> mg
 
6 0
3 years ago
Read 2 more answers
Which of the following is characteristic of proficient catching?
uysha [10]

Answer:

The correct answer is option D i.e. A and C

Explanation:

The correct answer is option D i.e. A and C

for proficient catching player must

- learn to absorbed the ball force

- moves the hang according to ball direction to hold the ball

- to catch ball at high height move the finger at higher position

- to catch ball at low height move the finger at lower position

5 0
2 years ago
A vertical spring stretches 4.0 cm when a 12-g object is hung from it. The object is replaced with a block of mass 28 g that osc
marin [14]

Answer:

Time period of the osculation will be 0.0671 sec  

Explanation:

It is given a vertical spring is stretched by 4 cm

So change in length of the spring x = 4 cm = 0.04 m

Mass which is hung from it m = 12 gram = 0.012 kg

Sprig force will be equal to weight of the mass

So kx=mg

k\times 0.04=0.012\times 9.8

k = 244.7 N/m

Now new mass is m = 28 gram = 0.028 kg

So time period with new mass will be

T=2\pi \sqrt{\frac{m}{k}}

=2\times 3.14 \sqrt{\frac{0.028}{244.7}}=0.0671sec

4 0
2 years ago
a block of wood of density 0.8 gram per centimetre cube has a volume of 60 cm3 the mass of block will be...?​
Tamiku [17]
Density =mass/Volume

0.8=mass/60
Mass=0.8*60
Mass=48g
4 0
2 years ago
What is an output force?
Vinil7 [7]
The answer would be D

5 0
3 years ago
Read 2 more answers
Other questions:
  • A ball weighing 1 lb is attached to a string 2 feet long and is whirled in a vertical circle at a constant speed of 10 ft/sec.
    14·1 answer
  • Fault block mountains form when large blocks of crust are and tilted along normal faults
    6·1 answer
  • You are heating a beaker of a chemical solution of an open flame. All of the following procedures must be followed a expect
    11·1 answer
  • Why do all objects hit with the same velocity (ignoring air resistance) if dropped from the same height?
    10·2 answers
  • An 8.00 g bullet is fired into a 250 g block that is initially at rest at the edge of a table of 1.00 m height. The bullet remai
    12·1 answer
  • Ian throws a ball straight up into the air at a speed of 10 m/s. what is the ball's speed at the highest point?
    15·1 answer
  • How do you find the instantaneous velocity on a position-time graph?
    6·1 answer
  • Hey please help Hey please help Hey please help Hey please help Hey please help
    9·1 answer
  • An ion is an atom that has
    11·1 answer
  • the atomic number of uranium-235 is 92, its half-life is 704 million years, and the radioactive decay of 1 kg of 235u releases 6
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!