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
saw5 [17]
3 years ago
10

An old millstone, used for grinding grain in a gristmill, is a solid cylindrical wheel that can rotate about its central axle wi

th negligible friction. The radius of the wheel is 0.330 m. A constant tangential force of 200 N applied to its edge causes the wheel to have an angular acceleration of 0.936 rad/s2. (a) What is the moment of inertia of the wheel (in kg · m2)?
Physics
1 answer:
MAXImum [283]3 years ago
4 0

Answer:

The answer is I=70,513kgm^2

Explanation:

Here we will use the rotational mechanics equation T=Ia, where T is the Torque, I is the Moment of Inertia and a is the angular acceleration.

When we speak about Torque it´s basically a Tangencial Force applied over a cylindrical or circular edge. It causes a rotation. In this case, we will have that T=Ft*r, where Ft is the Tangencial Forge and r is the radius

Now we will find the Moment of Inertia this way:

Ft*r=I*a -> (Ft*r)/(a) = I

Replacing we get that I is:

I=(200N*0,33m)/(0,936rad/s^2)

Then I=70,513kgm^2

In case you need to find extra information, keep in mind the Moment of Inertia for a solid cylindrical wheel is:  

I=(1/2)*(m*r^2)

You might be interested in
After completing a career search, Patrick has decided that he wants to be a paralegal. Which two skills or abilities are importa
Aleks04 [339]
A and B you do not need creative thinking or math skills to be a paralegal
7 0
3 years ago
Read 2 more answers
Suppose a certain jet plane creates an intensity level of 124 dB at a distance of 5.01 m. What intensity level does it create on
Zolol [24]

Answer:71 dB

Explanation:

Given

sound Level \beta _1=124 dB

distance r_1=5.01 m

From sound Intensity

\beta =10dB\log (\frac{I_1}{I_0})

124=10dB\log (\frac{I_1}{I_0})

12.4=\log (\frac{I_1}{I_0})

I_1=(1\times 10^{-12})\times 10^{12.4}

I_1=2.51 W/m^2

we know Intensity I\propto ^\frac{1}{r^2}

I_1r_1^2=I_2r_2^2

I_2=I_1(\frac{r_1}{r_2})^2

I_2=2.51\cdot (\frac{5.01}{2.25\times 10^3})^2

I_2=1.24\times 10^{-5} W/m^2

Sound level corresponding to I_2

\beta _2=10\log (\frac{I_2}{I_0})

\beta _2=10\log (\frac{1.24\times 10^{-5}}{1\times 10^{-12}})

\beta _2=70.93\approx 71 dB

6 0
3 years ago
11. The primary job of the cell wall is to
hodyreva [135]

11. protect the cell and keep its shape.

12. chloroplast

3 0
3 years ago
Read 2 more answers
What do radio waves and microwaves have in Common?
DerKrebs [107]

What do radio waves and microwaves have in Common?

<u>A) Both are at the ideological the spectrum that has the lowest frequency. </u>

B) Both are at the spectrum that has the shortest wavelengths.

C) Both have higher frequencies than visible light.

3 0
3 years ago
Car is travelling 100 km/h west and comes to a stop in 3 min. what is the car's<br>acceleration?​
Mariulka [41]

Explanation:

acceleration equation is change in velocity/time

so 100/3 will be 33.3km

7 0
3 years ago
Other questions:
  • which equations represent the relationship between wavelength and frequency for a sound wave? check all that apply
    14·1 answer
  • What is pitch related to?
    8·1 answer
  • The equipotential surfaces surrounding a point charge are concentric spheres with the charge at the center. If the electric pote
    9·1 answer
  • The amount of heat needed
    5·1 answer
  • Two facing surfaces of two large parallel conducting plates separated by 8.5 cm have uniform surface charge densities such that
    7·1 answer
  • A wave with a period of three seconds travels at a speed of 12 m/s what is the wavelength of the wave
    8·1 answer
  • An electrical power plant manages to transfer 88 percent of the heat produced in the burning of fossil fuel to convert water to
    11·1 answer
  • When a person floating in swimming pool, they experience an upthrust. what causes this effect?​
    11·1 answer
  • The statement “Heavy objects fall faster than light objects” is an example of a(n) _______.
    10·1 answer
  • electricity flows back and forth in an lc circuit with a .33 f capacitor and a .1 h inductor. what is the angular frequency and
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!