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
solmaris [256]
3 years ago
5

A 1-m-tall barrel is closed on top except for a thin pipe extending 4.2 m up from the top. When the barrel is filled with water

up to the base of the pipe (1 m deep) the water pressure on the bottom of the barrel is 10 kPa. What is the pressure on the bottom when water is added to fill the pipe to its top?
Physics
1 answer:
Dmitry_Shevchenko [17]3 years ago
4 0

Answer:

P = 52 kPa

Explanation:

Hidrostatic pressure is defined as the product of the height of liquid (h) by its specific weight (ρ) and by the acceleration of gravity (g).

In the first scenario, the atmospheric pressure is:

10,000 = \rho g h_{1}\\10,000 = \rho g*1\\\rho g = 10,000

In the second scenario, h = 4.2 + 1 m. Therefore, the pressure at the bottom of the barrel is:

P= \rho g h_{2}\\P= 10,000*5.2\\P=52,000\\P=52kPa

The pressure on the bottom when water is added to fill the pipe to its top is 52 kPa.

You might be interested in
The nucleus of some isotopes will spontaneously undergo nuclear decay. These isotopes are said to be radioactive. What causes th
Dmitry_Shevchenko [17]

Answer:

Here, he is able both to share his own suffering and—in a way that Mammy cannot—insist on his love for Laila. Babi's dream for leaving Afghanistan is, ironically, based in his love for the country—a love he thinks can be better kept alive by continuing to celebrate its culture and cuisine abroad.JThe nucleus of some isotopes will spontaneously undergo nuclear decay. These isotopes are said to be radioactive. What causes the nucleus of an isotope to be radioactive?

The electric force and nuclear forces are in opposition to each other

Nuclear forces disintegrate protons

There are too many electrons in its orbitals

The electric force causes electrons to be released

(please help i genuinely cant find out why)Babi had wanted Laila and Tariq to understand their country's living, breathing heritage—a heritage quite apart from the violence and turmoil of the national wars. The Buddhas, testimony to an ancient community of monks that lived in caves within the cliffs, symbolize the cultural richness of this national heritageAs an unstable atom tries to reach a stable form, energy and matter are released from the nucleus. This spontaneous change in the nucleus is called radioactive decay. When there is a change in the nucleus and one element changes into another, it is called transmutation.Carbon-14 is unstable and undergoes radioactive decay with a half-life of about 5,730 years (meaning that half of the material will be gone after 5,730 years). This decay means the amount of carbon-14 in an object serves as a clock, showing the object's age in a process called “carbon dating.”Nuclear decay occurs when the nucleus of an atom is unstable and spontaneously emits energy in the form of radiation. The result is that the nucleus changes into the nucleus of one or more other elements. These daughter nuclei have a lower mass and are more stable (lower in energy) than the parent nucleus.

7 0
2 years ago
How are energy, work ang power related?
jolli1 [7]

Answer:

Work is the change in energy and power is the rate of doing work.

5 0
3 years ago
Low-pressure areas tend to ____ before occluding and ____ after occluding
alexgriva [62]

Out of the following given choices;

a. decelerate; accelerate

b. accelerate; decelerate

c. stop; accelerate

d. decelerate; stop

<span>The answer is B.  This is because the cold front usually rotates around the warm front as cold air mass coverage in the low-pressure system. This causes the cold air mass to accelerate to catch up with the warm front. When an occluded front ( that is the boundary that separates the older cool air mass already in place from new incoming cold air mass), that the system decelerates. </span>






4 0
4 years ago
Cell with structures labeled A, B, and C
sveticcg [70]
The answer is A. :)
6 0
3 years ago
Read 2 more answers
At this output power, how long would it take an 89 kg cyclist (including the mass of his bike) to climb the famed 1100-m-high al
Artemon [7]
<span>In general the route that follows the 1100-m-high alpe d'huez mountain stage takes anywhere from four to six hours in athletes from around the world. A beginner would probably take 8 hours or so. World records were recently broken with a time just under three hours. The most friction for cyclist is the competition itself.</span>
7 0
3 years ago
Other questions:
  • What are the components of vector A if its magnitude is 70 m/s and makes an angle of 51.7° with the +x-axis?
    13·1 answer
  • What problems would we have if Pascal had failed to give the Pascal's law? Write some points.
    11·2 answers
  • Can someone help me plz<br>it's a glass bell jar and to vacuum pump
    13·1 answer
  • Two parallel plates have equal but opposite charges on their surface. The plates are separated by a finite distance.
    10·1 answer
  • Why does your hair stand up when you go down a slide?
    6·1 answer
  • Earth revolves on its own axis. true false
    7·2 answers
  • A toy airplane is flying at a speed of 6 m/s with an acceleration of 0.3 m/s2.
    9·1 answer
  • Which approach would be the most interested in studying Phineas Gage
    8·1 answer
  • is the outer electron in potassium more or less strongly attracted to the positive nucleus than the outer electron in sodium is?
    6·1 answer
  • 6. How much heat is absorbed by a persons hand if 100 grams of liquid water at 100°C is poured on his hand? (Assume the final te
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!