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
frosja888 [35]
3 years ago
13

A disk of a radius 50 cm rotates at a constant rate of 100 rpm. What distance in meters will a point on the outside rim travel d

uring 30 seconds of rotation? ​ ​
Physics
1 answer:
Dmitry [639]3 years ago
6 0

Answer:

the distance in meters traveled by a point outside the rim is 157.1 m

Explanation:

Given;

radius of the disk, r = 50 cm = 0.5 m

angular speed of the disk, ω = 100 rpm

time of motion, t = 30 s

The distance in meters traveled by a point outside the rim is calculated as follows;

\theta = \omega t\\\\\theta = (100 \frac{rev}{\min}  \times \frac{2\pi \ rad}{1 \ rev} \times \frac{1\min}{60 s} ) \times (30 s)\\\\\theta = 100 \pi \ rad\\\\d = \theta r\\\\d = 100\pi  \ \times \ 0.5m\\\\d = 50 \pi \ m = 157.1 \ m

Therefore, the distance in meters traveled by a point outside the rim is 157.1 m

You might be interested in
A car's horn produces a constant frequency of 350 Hz as it passes by Suzy. What is the best estimate of the
Arada [10]

Answer:

330 Hz

Explanation:

edg2020

8 0
3 years ago
Read 2 more answers
The thermal energy of a container of helium gas is halved. what happens to the temperature in kelvin
xxTIMURxx [149]
Thermal energy quantifies the amount of heat present in the body and is calculated through the equation,

   H = mcpdT

where H is the heat, m is the mass, cp is the specific heat, and dT is the temperature difference. If all things are constant, and the thermal energy is halved then, dT should also be reduced to half. 
5 0
3 years ago
What does the column that an element is in tell you?​
Mumz [18]

Answer:

The column number tells us the amount of valence electron the element has

8 0
3 years ago
Is a truck braking to avoid an accident moving at constant
frutty [35]

Answer:

its not moving at a constant velocity because it is slowing down

Explanation:

3 0
2 years ago
Read 2 more answers
Which wind blows 30 latitude in both hemisphere almost to the equator
andriy [413]
Trade winds
Hope it help
7 0
2 years ago
Other questions:
  • What is the possible consequence of the following scenario? Because of high unemployment rates in the country of Lavernia, emplo
    7·1 answer
  • A car accelerates uniformly in a straight line
    10·1 answer
  • Are 50% of psychologists clinicians?
    8·1 answer
  • An automobile tire having a temperature of 3.4 ◦C (a cold tire on a cold day) is filled to a gauge pressure of 24 lb/in2 . What
    9·2 answers
  • Why did friction make it difficult to discover newtons first law of motion
    5·2 answers
  • Two workers are sliding 490 kg crate across the floor. One worker pushes forward on the crate with a force of 410 N while the ot
    10·2 answers
  • A motorcycle (mass of cycle plus rider = 2x 10^2 kg) is traveling at a steady speed of 20 m/s.?The force of air resistance actin
    11·1 answer
  • 11. All objects gain or release heat at the same rate. *
    15·1 answer
  • EX 6-1 A ball is twirled on a 0.870 - m-long string with a constant speed of 3.36 m / s . Calculate the acceleration of the ball
    9·1 answer
  • A closed curve encircles several conductors. The line integral around this curve is (image attached below)
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!