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
Nimfa-mama [501]
3 years ago
8

A Ping-Pong ball has a mass of 2.3 g and a terminal speed of 9.2 m/s. The drag force is of the form bv2 What is the value of b?

Physics
1 answer:
Bingel [31]3 years ago
8 0
Drag force is a force that resist the motion of a certain body through a fluid like air or water. This can be calculated through the equation,
                                    D = 0.5Cρv²
where D is drag, C is the drag coefficient, ρ is the density and v is the velocity. The value therefore of b in the item above is,
                                        b = 0.5Cρ
You might be interested in
Explain how orbital motion develops.
Whitepunk [10]
<h2>Hello!</h2>

Orbital motions are the result of the balance between the forward motion (its direction will be related to a reference point) of a body in space (like planets, moons) and big size (and mass) body.

The gravity pulls the small size body to the big one, as result, the speed of the small body and the gravity of the big size body creates a perfect balance, describing what we call an orbit.

The small size body is always trying to move forward while the gravity of the big size one attracts it when the balance is perfect, it creates an endless cycle (orbit)

If the balance is not perfect, for example, if the speed of the small size body is too high, the body will continue its forward movement and there will not be an orbit. On the opposite side, if the big body size is too big, the gravity will attract it completely and crash.

Have a nice day!

6 0
3 years ago
Rank these graphs on the basis of the angular acceleration of the object. Rank positive angular accelerations as larger than neg
Gemiola [76]

As soon as I saw the beginning of the question, I knew that
when I opened it and read the rest, there would be no graphs
to rank.  I was not disappointed.


3 0
3 years ago
A satellite orbiting the moon very near the surface has a period of110 min. What is free-fall acceleration on the surface of the
Norma-Jean [14]

Answer:

1.54 m/s²

Explanation:

The free-fall acceleration is calculated as

g = w²r

Where w is the angular velocity of the satellite and r is the radius of the moon.

The angular velocity can be calculated as

w=\frac{2\pi}{T}

Where T is the period, so

T = 110 min = 110 x 60 s = 6600 s

Then,

w=\frac{2\pi}{6600\text{ s}}=9.52\times10^{-4}\text{ rad/s}

Finally, the radius of the moon is r = 1.7 x 10⁶ m, so the free-fall acceleration is

\begin{gathered} g=w^2r \\ g=(9.52\times10^{-4})^2(1.7\times10^6) \\ g=1.54\text{ m/s}^2 \end{gathered}

Therefore, the answer is 1.54 m/s²

5 0
1 year ago
The lower part of the walls of a house near the floor appear dump and begin to to peel off a few years after construction ,why a
kramer

Because of moisture-laden walls, climatic circumstances, Paints of lower grade the lowest portion of a house's walls near the floor seem cheap and start to peel off a few years after completion.  

<h3 /><h3>How can one minimize that risk?</h3>

we can minimize this risk by

  • Avoid getting water on the painted surfaces.
  • Control the surrounding surfaces' condensation and humidity.
  • Before painting, give the surfaces a thorough cleaning.
  • Only paint freshly cleaned surfaces.
  • Defend against heat and sunshine on the covered surfaces.
  • Pick the appropriate primer and paint.
  • Use effective painting techniques.
  • Away from the coated surfaces, keep corrosive materials.

To know more about painting techniques visit:

brainly.com/question/12699401

#SPJ4

3 0
2 years ago
How does artificial transmutation differ from nuclear decay
Yuki888 [10]

Explanation:

In both cases the conversion of one chemical element into another is obtained, modifying the number of protons in the nucleus. The difference is that artificial transmutation needs an outside cause, since an outside particle reacts with the nucleus, while in nuclear  decay not cause outside is needed.

6 0
3 years ago
Other questions:
  • What is the force of gravity on an object known as?
    14·1 answer
  • A runner completes a 10 km run in about 45 minutes. What was the runner’s speed in km/h?
    10·1 answer
  • Hooowwww dooo I doooo thiiiissss?!?!
    8·1 answer
  • The slope of a position-time graph can be used to find the moving object’s
    15·1 answer
  • HELP PLEASE!
    7·2 answers
  • A heavy rope, 60 ft long, weighs 0.7 lb/ft and hangs over the edge of a building 130 ft high. (let x be the distance in feet bel
    8·1 answer
  • ⦁ Consider an atom. Which contributes most to the mass of the atom?
    7·1 answer
  • Nikolas had an idea that he could use the compressed carbon dioxide in a fire extinguisher to propel him on his skateboard.
    5·2 answers
  • 4. What is the period of the microwaves in the above question?
    8·1 answer
  • Against the park ranger's advice, a visitor at a national park throws a stone horizontally off the edge of a 83 m high cliff and
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!