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
umka21 [38]
3 years ago
8

an object weighs 40N in air , weighs 20N when submerged jn water and 30N submerged in a liquid of unknown density .what is the d

ensity of the liquid?​
Social Studies
1 answer:
Viefleur [7K]3 years ago
6 0

Answer:

502.51 kg/m^3

Explanation:

Upthrust on object in water is 40 - 20 = 20 N

Upthrust is equal to the buoyancy forces given as

B = pgv

p is density of water 1000 kg/m^3

g = acceleration due to gravity 9.81 m/s^2

v is the volume of liquid displaced.

Therefore

B = 1000 x 9.81 x v

20 = 9810v

v = 2.038x10^-3 m^3

For Upthrust in unknown liquid, we have 40 - 30 = 10 N

Bouyancy force for the liquid will be

B = P x 9.81 x 2.038x10^-3

NB- the same volume of fluid will be displaced i.e 2.038x10^-3 m^3

Equating we have

10 = P x 9.81 x 2.038x10^-3

10 = 0.0199p

p = 10/0.0199 = 502.51 kg/m^3

You might be interested in
Dialouge between two friends about social problems and evils<br>​
Jobisdone [24]

We found that friends from different class backgrounds spent less time together, talked less often and got into more arguments, compared to friends from the same class background.

Socio-economic status plays a contrasting role explaining interethnic friendships. Stronger preferences for cultural similarity leads to fewer interethnic friendships. Higher perceived opportunities results in more interethnic friendships. SES negatively relates to opportunities for natives, positively for minorities.

Friends bring more happiness into our lives than virtually anything else. Friendships have a huge impact on your mental health and happiness. Good friends relieve stress, provide comfort and joy, and prevent loneliness and isolation. Developing close friendships can also have a powerful impact on your physical health.

Social anxiety disorder (social phobia) is what is called

If you're feeling degraded or mistreated by your friend, you are in a negative relationship that can damage your self-esteem and mental health. Malicious Behavior. If your friend speaks to you or calls you names with the intent to hurt your feelings, you are experiencing a bad friendship.

I hope this helped you Miss..

4 0
2 years ago
Please help. Is there anyway i can focus during online school with like 5 children screaming near me. I've tried going to my roo
MariettaO [177]

Answer:

Maybe you could try to ask them to please be quiet because you are doing school. If you've already tried that..maybe ask a parent or adult to ask them to be quiet. Or maybe you could go some where else to do your school..like a different room or a friends or starbucks.

Explanation:

Just trying to help! :)

5 0
3 years ago
Read 2 more answers
Thyroid peroxidase autoantibodies are most sensitive for detecting which thyroid disorder?
EleoNora [17]

The determination of TPO antibody stages is the most sensitive take a look at for detecting autoimmune thyroid disease (eg, Hashimoto thyroiditis, idiopathic myxedema, and Graves sickness) and detectable concentrations of anti-TPO antibodies are determined in most sufferers with these issues.

The thyroid peroxidase antibodies check is in most cases used to help diagnose and display autoimmune situations related to the thyroid gland, such as Hashimoto's thyroiditis and Graves disease.

The blood take look at for TSH, that's the most touchy marker of your thyroid reputation, is used as a biochemical marker to ensure that your thyroid hormone replacement is adequate. it's miles encouraged that sufferers on thyroid hormone alternative ought to keep their TSH inside the reference variety.

Learn more about thyroid here: brainly.com/question/14135655

#SPJ4

4 0
1 year ago
In 150 words, describe the powers of federal and state agencies
allsm [11]

Federal and State agencies put into practice the laws that legislatures pass. This is important as most laws define the broad strokes of what is hoped to be accomplished. So, agencies then step in and fill in the games. They have the authority to think creatively when filling in the gaps but they are also unelected.

So, federal and state agencies exist as unelected executors of law, with all that that encompasses from filling in gaps to determining and applying sanctions.

5 0
3 years ago
The other friend states that hypnosis is simply your "belief" that you are in a trance, but you are not really in an alternate f
Tpy6a [65]

Answer:Role theory

Explanation: Role theory is a belief that you are in a trance. Is when a person is acting a role of a

hypnotized person,while in a real sense, the person is not in an alternate form of consciousness.

7 0
3 years ago
Read 2 more answers
Other questions:
  • Consider these two statements: 1) the patterns of physiological responses differ among the emotions; 2) however, people are not
    7·1 answer
  • How did Muslims under the "rightly guided" caliphs treat conquered people?
    6·1 answer
  • The internet has taken some of the unpredictability and randomness out of human interactions. how might this be a bad thing?
    14·1 answer
  • If we accept that every person has a conscience, then we must also accept that everyone ______.
    12·2 answers
  • 1. Include the name and citation for the case.
    10·1 answer
  • A town on the Gulf Coast is battered by a massive hurricane that destroys most of its productive resources. The community’s prod
    11·1 answer
  • Which country bears the year 2018​
    12·1 answer
  • Please give me an explanation! I will be giving out brainliest! No copying off of the internet! Does anyone know about the Silk
    5·1 answer
  • FIVE strands of colonial growth.
    10·1 answer
  • In the late 1700s many pioneers started moving into the Ohio valley what impact did this white movement have on the Native Ameri
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!