Question
Asked Nov 27, 2019
1 views

A duck is floating on a lake with 28% of its volume beneath the water. What is the average density of the duck?

check_circle

Expert Answer

Step 1

Density of water = 1000 kg/m3

Duck’s volume submerged in water = 28%

= 28% of V
V
sub
duck
V (0.28) xV
duck
sub
help_outline

Image Transcriptionclose

= 28% of V V sub duck V (0.28) xV duck sub

fullscreen
Step 2

Concept used:

To float any object, the buoyant force acting on that object should be equal to the weight of that object.

An object will float only and only if weight of replaced fluid is equal to the weight of the object.

Step 3

to calculate the approximate density of fluid, the sum of...

ΣF-0
B-W 0
PwaterXg x bPck gxVek 0
sub
duck
Pwaterg V
P auc'kXgxVk
=PauckgxV
sub
duck
duck
= 1000x (0.28)Vdaek
Pebue'kV
duck
=1000 x 0.28
P auc'k
kg
Pauck = 280
help_outline

Image Transcriptionclose

ΣF-0 B-W 0 PwaterXg x bPck gxVek 0 sub duck Pwaterg V P auc'kXgxVk =PauckgxV sub duck duck = 1000x (0.28)Vdaek Pebue'kV duck =1000 x 0.28 P auc'k kg Pauck = 280

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Science

Physics

Related Physics Q&A

Find answers to questions asked by student like you

Show more Q&A add
question_answer

Q: is elongation equal to change of the scale reading in the first picture? it looks wrong, because bas...

A: Given:

question_answer

Q: Area of an Ellipse In class we used A = Tab for the Area of an ellipse with 2. a semimajor axis a an...

A: Let the area of an ellipse is denoted by A.Derive the equation of an ellipse by the given parametric...

question_answer

Q: Can you solve B, C, and D and show steps please? Also, brief explanations if possible, thanks.

A: The velocity of the particle as function of time is

question_answer

Q: An ideal gas is confined to a container whose volume is fixed. If the container holds n moles of gas...

A: Write the expression for ideal gas equation.

question_answer

Q: A sample of water (2 Hydrogens and one oxygen in each molecule)  has a mass of 10.0 grams. What is t...

A: Write the expression for number of molecules

question_answer

Q: As shown below, a metal rod of length L = 10 cm is being pulled along horizontal, frictionless, cond...

A: Given,

question_answer

Q: Presbyopia is the tendency to gradually become far-sighted (hyperopic) as you age. If you have norma...

A: Since focal length of the lens is not given, solving the given problem in terms of focal length.

question_answer

Q: A 131.0-N bird feeder is supported by three cables as shown in the figure below. Find the tension in...

A: The free body diagram is shown below.

question_answer

Q: Inside a vacuum tube, an electron is in the presence of a uniform electric field with a magnitude of...

A: (a) The magnitude of the acceleration of the electron is