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
marin [14]
2 years ago
11

A circular disk is rotating about a central axis with an angular velocity which is increasing at a constant rate. Point 1 on the

disk is located at a distance r1 from the center of the disk and point 2 on the disk is located at a distance r2 from the center of the disk. If r2 = 2r1, which of the following ratios is the largest? 1 and 2 refer to being at points 1 and 2 in the subscripts below, all values occurring at the same time.
a. ω2/ω1
b. α2/α1
c. ac2/ac1
d. All the ratios are 1 so none is larger.
Physics
1 answer:
antiseptic1488 [7]2 years ago
8 0

The largest ratio of the circular disk at the two points is ac2/ac1.

The given parameters:

  • Location of point 1 = r1
  • Location of point 2 = r2 = 2r1

<h3>What is angular speed?</h3>
  • The angular speed of an object is the rate of change of angular displacement of the object.

The angular speed of each disk is given as;

\omega = 2\pi N

where;

  • N is the number of revolutions

thus, the angular speed is independent of radius of the circular disk

ω2/ω1 = 1

the centripetal acceleration of each disk is calculated as follows;

a_c = \frac{v^2}{r} \\\\a_c_1 = \frac{v^2}{r_1} \\\\a_c_2 = \frac{v^2}{2r_1} \\\\\frac{a_c_2}{a_c_1} = \frac{2r_1}{v^2} \times \frac{v^2}{r_1} = 2

the angular  acceleration of the disk is calculated as follows;

\alpha = \frac{\omega }{t}

the angular acceleration is independent of the radius of the disk.

α2/α1 = 1

Thus, the largest ratio of the circular disk at the two points is ac2/ac1.

Learn more about centripetal acceleration here: brainly.com/question/79801

You might be interested in
What is the role of the sun in the formation of clouds??
klasskru [66]
Cloud Formation<span> Due to Surface Heating. Some </span>clouds<span>form due to the heating of the Earth's surface. First, the </span>Sun<span>heats the ground, which then heats the air. ... This extra water vapor begins to condense out of the air parcel in the form of liquid water droplets.</span>
4 0
3 years ago
What happens to the gravitational force between two objects when their distance is changed?
kykrilka [37]
If they become closer, it is increased, and if the objects become farther away is decreased.
7 0
3 years ago
Is it possible for an object that has a constant negative acceleration to change the direction in which it is moving? Explain wh
lozanna [386]
Yes! I think there are two ways you could go with this answer: 1) Acceleration is the change in velocity over time, it can be negative or positive. If you have an object that is already moving forwards in a straight line and give it a constant negative acceleration, it will slow down and then start going in reverse. 2)Velocity is a vector, meaning it has both magnitude and direction. In the example above, the acceleration is due to a change in magnitude, or speed (from +ve to -ve) but not a change in direction. Something that has constant speed but is changing direction is also accelerating (like something that is orbiting). You could use the earth as an example, which is constantly accelerating due to moving in a circle around the sun. At any time in the year you can say that in half a year's time the earth's direction will be reversed.
4 0
3 years ago
Do you believe in God (why or why not)?
masya89 [10]
Yes I believe in god.I believe in him because there is huge gaps in science that can not be solved. I also believe in him because I was also taught about him when I was little by family & my mom so I grew up learning about him which made my beliefs stronger of course.
3 0
3 years ago
Read 2 more answers
Give two reasons why circular water waves decrease in amplitude
Ronch [10]
1. friction between water molecules
2. the wave spreads out onto a larger and larger area, so per unit area, the energy of the wave goes down
3 0
3 years ago
Other questions:
  • A water heater warms 35 l of water from a temperature of 22.7 c to a temperature of 83.7
    10·1 answer
  • Do Number 8<br> Please respond fast<br> WILL MARK BRAINLIEST<br> (THIS INVOLVES INCLINED PLANES)
    12·1 answer
  • Light traveling through air strikes the surface of the four different materials below. which material reflects light but doesn't
    12·2 answers
  • The amount of usable energy from anaerobic respiration is less than the amount of useable energy from aerobic respiration becaus
    11·2 answers
  • When the course deviation indicator (CDI) needle is centered during an omnireceiver check using a VOR test signal (VOT), the omn
    11·1 answer
  • Select the correct answer.
    13·2 answers
  • A system gains 767 kJ of heat, resulting in a change in internal energy of the system equal to +151 kJ. How much work is done?
    10·1 answer
  • Need help pls. It is for acellus
    13·2 answers
  • Which situations might cause two observers (A and B) to measure different frequencies for the same vibrating object? Select the
    5·1 answer
  • 17. How long will it take for an object accelerating at a constant rate of 5 m/s to change its velocity from 0 to 6 m/s? (A) 0.6
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!