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UNO [17]
1 year ago
10

Please help me with this rotation and linear motion problem

Physics
1 answer:
kirill115 [55]1 year ago
5 0

The initial angular velocity of the wheel would be 15.5 rad/s

<h3>What is Velocity?</h3>

The total displacement covered by any object per unit of time is known as velocity. It depends on the magnitude as well as the direction of the moving object. The unit of velocity is meter/second.

The relation between the linear velocity and the angular velocity

V= ωr

as given the initial  linear velocity is 8.22 m/s

the radius of the wheel is 0.530 m

By substituting the value of the linear velocity and the radius

8.22 = 0.530ω

ω = 8.22/0.530

ω = 15.5 rad/s

Thus, the initial angular velocity of the wheel comes out to be  15.5 rad/s

Learn more about Velocity from here

brainly.com/question/18084516

#SPJ1

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dexar [7]
Because they are mentally trying to extinguish the negative things in their lives and focus on the positive things
5 0
3 years ago
If you run a complete loop around an outdoor track of length 400 m in 100 s, find your(a) average velocity and (b) average speed
laila [671]

Answer:

a) 0 m/s

b) 4 m/s

Explanation:

The average velocity would end up being 0 because it is displacement over time and the displacement here is 0. However, speed is total distance over time which here is 400/100 so it is 4.

5 0
3 years ago
The rectangular region of the xy plane shown has nonuniform surface charge density σ = σ0 (1+ y b), where σ0 is a constant. Find
sergiy2304 [10]

Answer:

This is net charge on the surface  is  Q = σ₀ x (y + 2by²)

Explanation:

The surface charge density is defined as the amount of charge Q per unit area A

       σ = dq / dA

       dq = σ dA

Since the surface is a rectangular region we use an xy coordinate system so the area difference  

      dA = dxdy

      dq = σ dx dy

 We replace, evaluate the integral

        ∫ dq = ∫ σ₀ (1 + yb) dxdy

realizamos laintegral de dx

        Q -0 =σ₀ ∫ (1 + yb) (x-0)   dy

Where we evaluate We must recognize that the charge Q must be zero by the time X = 0 and Y = 0. At the starting point Q = 0 for x = 0

 

We perform the other integral (dy)

        Q = σ₀ x (y + 2y² b)

Evaluated between Y = 0 and Y = y

      Q = σ₀ x (y + 2by²)

This is net charge on the surface

8 0
3 years ago
a certain machine changes a large input force into a smaller output force. how will the machine affect the distance over which t
nasty-shy [4]
For the answer to the question above, if your question is a lever with a pivot and which sounds more likely ...then I would say from the principle of moments: F1*d1=F2*d2 

<span>given F1=high and F2=low ---> d1 must be low and d2 high for the equations to be balanced. </span>

<span>So the answer is simply: Inversely</span>
4 0
3 years ago
What is the potential energy of a 2.3g penny that is held at the top of the cn tower (553m)?
SpyIntel [72]

Answer:

12.46 joules

Explanation:

The formula of potential energy is:

\displaystyle{E_p = mgh}

where m is mass, g is gravitational force (9.8 m/s^2) and h is height.

  • Mass is given to be 2.3 grams.
  • Gravitational Force is defined as 9.8 m/s^2.
  • Height is given as 553 meters.

However, mass must be in kilograms (kg) unit so we will be converting the gram to kilogram:

We know that a gram equals to 0.001 kg so 2.3 grams will equal to 2.3 * 0.001 = 0.0023 kg.

Therefore, substitute known information in the formula of potential energy:

\displaystyle{E_p = 0.0023 \times 9.8 \times 553}\\\\\displaystyle{E_p = 12.46 \ \, \sf{Joules}}

Therefore, the potential energy is 12.46 joules.

6 0
2 years ago
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