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
maxonik [38]
3 years ago
5

A carousel - a horizontal rotating platform - of radius r is initially at rest, and then begins to accelerate constantly until i

t has reached angular velocity after 2 complete revolutions. What is the angular acceleration of the carousel during this time
Physics
1 answer:
OLga [1]3 years ago
7 0

Answer:

α = (ω²)/8π

Explanation:

The angular acceleration(α) of the carousel can be determined by using rotational kinematics:

ω² =ωo² + 2αθ

Let's make α the subject of this equation ;

ω² - ωo² = 2αθ

α = (ω² −ωo²)/2θ

Now, from the question, since initially at rest, thus, ωo = 0

Also,since 2 revolutions, thus, θ = 2 x 2π = 4π since one revolution is 2π

Plugging in the relevant values to get ;

α = (ω²)/2(4π)

α = (ω²)/8π

You might be interested in
Chemical formulawhat is the chemical formula ​
evablogger [386]

Answer:

??

Explanation:

what's the actual question

4 0
3 years ago
Read 2 more answers
Earth has a magnetic dipole moment of 8.0 × 1022 J/T. (a) What current would have to be produced in a single turn of wire extend
Lelechka [254]

Answer:

Answer is

A. I = 6.3×10^8 A

B. Yes

C. No

Refer below.

Explanation:

Refer to the picture for brief explanation.

7 0
3 years ago
Two wires are made of the same material and have the same length but different radii. They are joined end-to- end and a potentia
Radda [10]

Answer:

Current

I think The choose (B)

B. Electric current

6 0
2 years ago
The center of the Milky Way galaxy lies in the direction of the _constellation, aboutlight-years away.
Elza [17]

Answer:

Sagittarius

Explanation:

The center of the Milky Way galaxy lies in the direction of the Sagittarius constellation, about 26,000 light-years away.

5 0
3 years ago
Read 2 more answers
If someone ways 600 newtons and the shoes have an area of 300cm squared, what pressure does he exert on the ground?
lukranit [14]
Pressure = Force / Area

Put your data in front of yourself.

Force = 600 Newtons
Area = 300 cm^2

Firstly you need to convert the area into m^2 and you do this by diving 300 with 10000.

Now you use the formula:-
Pressure = 600/ 0.03
Which comes out to be 20,000 Pa.

Hope this helps!
4 0
3 years ago
Other questions:
  • The random thermal motion of molecules from a region of higher concentration to a region of lower concentration is called diffus
    8·1 answer
  • How can you find the net force if two forces act in opposite directions?
    13·1 answer
  • Why is soap solution a better cleansing agent than ordinary water?
    9·1 answer
  • The period of a simple pendulum in a grandfather clock on another planet is 1.80 s. What is the acceleration due to gravity (in
    7·1 answer
  • Which of the following best illustrates the role that gravity played in the formation of the solar system?
    7·1 answer
  • Which has a neutral charge?
    10·2 answers
  • A ball of 12 kg is attached to a string of 0.8 meter spun at 4
    11·1 answer
  • Which is the best description of biodiversity?
    7·2 answers
  • Here is the picture of an aircraft, with the forces working on it shown. Identify the force that corresponds to the question mar
    10·2 answers
  • A cobalt atom contains 27 protons, 32 neutrons, and 27 electrons. What is
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!