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
aksik [14]
3 years ago
11

A carousel has a radius of 1.70 m and a moment of inertia of 110 kg · m2. A girl of mass 44.0 kg is standing at the edge of the

carousel, which is rotating with an angular speed of 3.40 rad/s. Now the girl walks toward the center of the carousel and stops at a certain distance from the center d. The angular speed of the carousel is now 5.4 rad/s. How far from the center, in meters, did the girl stop?
Physics
1 answer:
bonufazy [111]3 years ago
8 0

Answer:

Explanation:

Initial moment of inertia of the carousel + girl

I₁ = 110 + 44 x 1.7²

= 110 + 127.16

= 237.16 kgm².

final moment of inertia of carousel + girl

I₂ = 110 + 44 x d²

applying law of conservation of angular momentum

I₁ ω₁ = I₂ω₂

ω₁ and ω₂ are angular velocities of the carousel before and after .

237.16 x 3.4 = (110 + 44 x d²)x 5.4

806.34 = 594 + 237.6 d²

237.6 d² = 212.34

d²= .8936

d = .9453 m

You might be interested in
What direction does the medium vibrate
slega [8]

a direction perpendicular to the direction of propagation of the wave, it is called a transverse wave.

7 0
3 years ago
Read 2 more answers
Flexibility is defined as A: bending too much and not reaching your goals because of it. B: changing your approach or trying a d
Alex_Xolod [135]
It’s definitely D: seeing all the options available to you and giving one a try
7 0
2 years ago
Read 2 more answers
During the fission reaction shown, how did the target nucleus change ?
Zarrin [17]

Answer:

A. The target nucleus split into two nuclei, each with fewer nucleons than the original.

Explanation:

5 0
3 years ago
If the temperature of the metal oxide and water solution is increased,this would most likely..
kiruha [24]
Chemical Reaction between metal oxide and water solution
7 0
3 years ago
Please help.. I'm desperate.
rosijanka [135]

Answer:

Newton's Second Law tells us that the more mass an object has, the more force is needed to move it. A larger rocket will need stronger forces (eg. more fuel) to make it accelerate. The space shuttles required seven pounds of fuel for every pound of payload they carry.

Explanation:

7 0
2 years ago
Other questions:
  • A hollow spherical shell with mass 2.00kg rolls without slipping down a slope that makes an angle of 40.0^\circ with the horizon
    13·2 answers
  • Q 24, 25, 26 i dont get them and need answers for it
    7·1 answer
  • The part of Earth's rocky outer layer that makes up the land masses is the
    5·1 answer
  • Consider two rocks with masses of 1 and 10 kilograms. What is the relation between their inertias? Between their masses? Between
    11·1 answer
  • If we want to describe work we must have
    8·1 answer
  • Sound is a type of mechanical wave and must have a medium through which to travel. Sound will move at different speeds when whic
    10·1 answer
  • Does wve travel faster through glass or air
    11·1 answer
  • With Christmas lights wired in series, if one light goes out, what happens to the rest?
    10·2 answers
  • The term for the bacterium that causes tuberculosis​
    12·1 answer
  • A mass is placed at the end of a spring. It has starting velocity of V & allowed to oscillate freely. If the mass has a star
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!