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
natka813 [3]
3 years ago
13

What do you understand by upthrust Force​

Physics
1 answer:
Sedaia [141]3 years ago
7 0

Answer:

hope you like it

Explanation:

An object that is partly, or completely, submerged experiences a greater pressure on its bottom surface than on its top surface. This causes a resultant force upwards. This force is called upthrust . The upthrust force is equal in size to the weight of the fluid displaced by the object.

Buoyancy or upthrust, is an upward force exerted by a fluid that opposes the weight of an immersed object.It is the force that pushes an object up. The upthrust, or buoyancy, keeps ships afloat. The upthrust, or buoyancy, keeps swimmers on top of the water.

You might be interested in
Find the approximate kinetic energy of a circular wheel of radius r and mass M that is rotating about its center at 2 cycles/s.
alukav5142 [94]

Answer:

8M(r\pi)^2

Explanation:

First we convert 2 cycles/s to angular velocity knowing that each circle has an angle of 2π

\omega = 2 * 2\pi = 4\pi rad/s

Then we calculate the moment of inertia of the cylindrical shell, assuming there's no mass inside the wheel (only at the rim):

I = mr^2 = Mr^2

So the kinetic energy of this is

E_k = I\omega^2/2 = Mr^2*(4\pi)^2/2 = 8M(r\pi)^2

6 0
3 years ago
A disk drive plugged into a 120V outlet operates on a voltage of 12V . The transformer that powers the disk drive has 125 turns
Serga [27]

Answer:

(A-) Number of turns in secondary coil will be<u> less than 125.</u>

(B-) EXPLAIN- The voltage is to be lowered.<u> The voltage will be reduced from 120 to 9 volts.</u> As a result, a<u> step down transformer </u>will be used, indicating that the secondary coil's number of turns would be less than 125.

(C-)<u> The number of turns on the secondary coil is 12.5</u>

<u></u>

Explanation:

  • STEP DOWN TRANSFORMER - A step-down transformer transforms high voltage (HV) and low current from the transformer's primary side to low voltage (LV) and high current on the secondary side. A phase down transformer is the opposite of this.

In electrical networks and transmission lines, a step-down transformer can be used in a number of ways.

<u>Step down transformer formula-</u>

                  V_s=\frac{N_s\times V_p}{N_p}

We are given with the -

Primary voltage V_p = 120V

Secondary voltage Vs=12V

Number of primary turns N_p=125

  • <u>To calculate the number of turns on the secondary coil -</u>

       Since , the transformer ratio is given as -

                   \frac{N_s}{N_p} =\frac{V_s}{V_p}

So, the number of turns on the secondary coil is - N_s=N_p\times\frac{V_p}{V_s}

            Putting , the given values -:

                125\times\frac{12}{120}

         =   12.5

<u>Therefore , the number of turns on secondary coil is 12.5 .</u>

6 0
3 years ago
What is the main reason why many nuclear power plants are located near bodies of water?
nasty-shy [4]
The answer is: To have easy access to a coolant for the reactor.
Hope this helps!:)
~Scarlett
4 0
3 years ago
Read 2 more answers
a student weighs 1200N they are standing in an elevator that is moving downwards at a constant speed of
baherus [9]

Answer:

<em>Elevator That Is Moving Downwards At A Constant Speed Of 4.9 M/S. What Is The Magnitude Of The Net Force Acing On The Student?</em>

<em>This problem has been solved!</em>

<em>This problem has been solved!See the answer</em>

<em>This problem has been solved!See the answerA student weighs 1200N. They are standing in an elevator that is moving downwards at a constant speed of </em><em>4.9 m/s. What is the magnitude of the net force acing on the student?</em>

6 0
2 years ago
Read 2 more answers
What would be the best way for her to do this?
andrew-mc [135]
Need more info plz :)


5 0
3 years ago
Other questions:
  • A ball is dropped from a height of 16 feet. Each time it drops h feet, it rebounds 0.81h feet. Find the total distance traveled
    6·1 answer
  • A police car waits in hiding slightly off the highway. A speeding car is spotted by the police car doing 40 m/s. At the instant
    11·1 answer
  • Question 4 of 10 (1 point) Jump to Question: Choose the word that best completes this sentence. A personal fall arrest system is
    10·2 answers
  • Una persona pesa 700 N al nivel del mar. ¿Cuándo sube a un avión a 10000 m de altura pesará más, igual o menos?
    5·1 answer
  • A student watches a video about forces.
    6·1 answer
  • Where do oils come from?<br><br> Bacteria<br> Plants<br> Fungi<br> Animals
    8·1 answer
  • A book that weighs 5 newtons is sitting on a table 1.5 meters above the floor. How much gravitational potential energy does the
    13·1 answer
  • What yall noticed about this picture please help me out ​
    11·1 answer
  • Please fill in the blanks. The words are: qualitative date, quantitative date, bar graph, circle graph, and line graph. Please n
    15·2 answers
  • A converging lens with a focal length of 4.0 cm is to the left of a second identical lens. When a feather is placed 12 cm to the
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!