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
Alla [95]
2 years ago
14

A spool is on a horizontal surface (with friction) and pulled to the right with a thread attached to the center of the spool, so

that the spool rolls without slipping. the spool has a mass of m, moment of inertia i, and a radius of r
SAT
1 answer:
IceJOKER [234]2 years ago
8 0

The relationship between the magnitude of the force of tension and the force of friction is; Ff = (r/R)Ft

<h3>What is Rotational Acceleration?</h3>

We are given;

mass of spool = M

Radius = R

moment of inertia = I.

Now, the spool is not moving and as such;

r < R which means there is net torque = 0

Thus;

Ff × R = Ft × r

>> Ff = (r/R)Ft

Finally, the angular acceleration is expressed as;

α = a/R

Read more about Rotational Acceleration at: brainly.com/question/16968864

You might be interested in
NOBODY CAN SOLVE CORRECTLY:
iris [78.8K]

Answer:

Slope: 4/3

A (15,12)   B (6,0)

Explanation:

The y-intercept would be (0,-8)

8 0
4 years ago
What are examples of associates degrees
postnew [5]

Answer:

graphic design, food service, management, medical assisting and automotive technology

3 0
3 years ago
Read 2 more answers
the height of a bottle rocket, in meters, is given by the function s(t)=−9t2+103t+403. find the average velocity of the bottle r
zaharov [31]

The average velocity of the bottle rocket are two given time intervals is 30 m/s and 20 m/s respectively, while the instantaneous velocity at 4.5 seconds is 22 m/s.

The given parameters;

  • s(t) = -9t² + 103t + 403
  • time interval (4.499, 4.5), and (4.5, 4.501)

The average velocity of the bottle rocket over the intervals is calculated as follows;

when the interval = [<em>4.499, 4.5</em>]

s(4.499)= -9(4.499)^2  + 103(4.499) + 403 = 684.22 \ m\\\\s(4.5) =  -9(4.5)^2  + 103(4.5) + 403 = 684.25 \ m

v = \frac{\Delta \ s}{\Delta \ t} = \frac{684.25 - 684.22}{4.5 - 4.499} = 30 \ m/s

when the interval = [<em>4.5, 4.501</em>]

s(4.5) = -9(4.5)^2 + 103(4.5) + 403 = 684.25 \ m\\\\s(4.501) = -9(4.501)^2 + 103(4.501) + 403 =684.27 \ m\\\\v= \frac{684.27 - 684.25}{4.501-4.5} \\\\v = 20 \ m/s

The instantaneous velocity of the bottle rocket at time t=4.5;

v = \frac{d \ s(t)}{dt} = -18t + 103\\\\v(4.5) = -18(4.5) + 103\\\\v(4.5) = 22 \ m/s

Thus, the average velocity of the bottle rocket are two given time intervals is 30 m/s and 20 m/s respectively, while the instantaneous velocity at 4.5 seconds is 22 m/s.

Learn more here: brainly.com/question/25009886

7 0
2 years ago
What is the area of triangle abc? 2. 5 square units 3 square units 3. 5 square units 4 square units
Bogdan [553]

Answer:

A=hbb

     ---

      2  

Explanation:

6 0
3 years ago
How many perfect squares less than 500 are divisible by 8
madreJ [45]

Answer:

There are 5 numbers

Explanation:

First, the number must be a whole number and divisible by 4.

20^2 is 400.

And there are 4, 8, 12, 16 ,20; 5 number divisible by 4.

23^2 is already 529.

The next number divisible by 4 is 24 which is over 500.

So there are 5 numbers. They are 16, 64, 144, 256, 400.

4 0
3 years ago
Other questions:
  • Soon Yi loves to bake, and she is making flaky pastry. Soon Yi starts with a layer of dough 222 millimeters (\text{mm})(mm)left
    10·2 answers
  • Birşey diyeceğim burda herkes yabancımi? Türkler yokmu?​
    13·2 answers
  • Translate this phrase into an algebraic expression. 43 decreased by twice Carlos's height Use the variable c to represent Carlos
    14·1 answer
  • Hi 123-123+123+123=????
    12·2 answers
  • How should dishes/equipment be stored after having in the sanitizer solution?
    6·1 answer
  • When must a system of linear equations be solved algebraically.
    5·1 answer
  • Which statement best summarizes the passage the outcasts of poker flat.
    6·1 answer
  • What is the magnitude and direction of the force exerted on a 3. 50.
    10·1 answer
  • Why would you expect sugar to dissolve faster in hot tea than in iced tea
    6·1 answer
  • A manufacturer of potato chips would like to know whether its bag filling machine works correctly at the 426 gram setting. Based
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!