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
Illusion [34]
3 years ago
9

A reasonable estimate of the moment of inertia of an ice skater spinning with her arms at her sides can be made by modeling most

of her body as a uniform cylinder. Suppose the skater has a mass of 64 kg . One eighth of that mass is in her arms, which are 60 cm long and 20 cm from the vertical axis about which she rotates. The rest of her mass is approximately in the form of a 20-cm-radius cylinder.
Mathematics
1 answer:
Firlakuza [10]3 years ago
3 0

Answer:

Step-by-step explanation:

Given data:

Mass of the one arm of the skater, m = (1/16) x 64 = 4 kg

Rest mass of the skater in the form of cylinder, M = (7 / 8) x 64 kg = 56 kg

Radius of the cylinder, R = 20 cm = 0.20 m

The parallel axis theorem:

You might be interested in
A carpenter started with a board that was 31 inches long. He cut 2 pieces that were each 3 inches long. He then cut 3 pieces tha
rosijanka [135]
One inch of board is left
if you subtract the two 3 inches pieces from the board
the further subtract the 24 inches from the three 8 inches pieces you get 31-30
7 0
3 years ago
timothy bought 12 of his cars to the babysitters. these toy cars represent 30% of his toy car collection. what is the total numb
omeli [17]

If 30% of his collection is 12 cars, then we can use the fraction

30/12=100/x

x=40

7 0
3 years ago
Karina pays $1.92 for pencil erasers. the erasers cost $0.08 each. how many erasers does she buy?
horrorfan [7]
1.92 / 0.08 = 24.....Karina bought 24 erasers
5 0
3 years ago
A scale drawing of a building is one foot to 1/4 inch. What is the actual length of the building if the scale drawing shows that
Rom4ik [11]
1\quad foot\quad :\quad \frac { 1 }{ 4 } \quad inch\\ \\ 4\quad \cdot \quad 1\quad foot\quad :\quad \frac { 1 }{ 4 } \quad inch\quad \cdot \quad 4\\ \\ 4\quad feet\quad :\quad 1\quad inch

This means that:

4\quad feet\quad :\quad 1\quad inch\\ \\ \frac { 27 }{ 2 } \cdot \quad 4\quad feet\quad :\quad \frac { 27 }{ 2 } \cdot \quad 1\quad inch\\ \\ \frac { 108 }{ 2 } \quad feet\quad :\quad \frac { 27 }{ 2 } \quad inches\\ \\ 54\quad feet\quad :\quad \frac { 27 }{ 2 } \quad inches\\ \\

13 + 1/2 inches is the same as 54 feet
4 0
3 years ago
Read 2 more answers
In this set of data, at what percentile is 10? At what percentile is 18? 10, 10, 10, 12, 14, 16, 16, 18, 18, 18​
zhenek [66]

Answer:

Step-by-step explanation:

8

8 0
3 years ago
Other questions:
  • The graph shows the temperature of ice cream in an ice chest during an overnight trip. What is the domain of this function? Grap
    12·1 answer
  • HELP I GOTTA PASS CLASS
    5·2 answers
  • 9 and a half plus three eighths
    5·2 answers
  • What are two different common denominators for 1/2 and 1/14
    8·1 answer
  • How can you represent the solutions of an inequality
    12·2 answers
  • Will give brainliest no files will report Select the correct answer.
    7·2 answers
  • Part C
    15·1 answer
  • Choose the Athat seems to be congruent to the given one.<br> ΔABD=Δ
    5·1 answer
  • What is the solution to the following system?
    5·1 answer
  • -18-16-14- 12-10-8-6Identify the inequality graphed on the number line.A)X-9&lt;3B)x+9&lt;3x-9 &lt;-3D)x +9&lt;-3
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!