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
nirvana33 [79]
3 years ago
14

A Blu-ray disc is approximately 11 centimeters in diameter. The drive motor of a Blu-ray player is able to rotate up to 10,000 r

evolutions per minute. (a) Find the maximum angular speed (in radians per second) of a Blu-ray disc as it rotates
Physics
1 answer:
stepladder [879]3 years ago
8 0

Answer:

the maximum angular speed (in radians per second) of a Blu-ray disc as it rotates is 57.6 m/s

Explanation:

Given information:

diameter of the disc, d  = 11 cm, r = 5.5 cm = 0.055 m

angular speed ω = 10000 rev/min = (10000 rev/min)(2π rad/rev)(1/60 min/s)

                             = 1000π/3 rad/s

to calculate the maximum angular speed we can use the following formula

ω = v/r

v = ωr

  = (1000π/3)(0.055)

  = 57.6 m/s

You might be interested in
What is the velocity of an object that has a momentum of 4,000 kg-m/s and a mass of 115 kg? Round to the nearest hundredth.
julia-pushkina [17]
<h2>Answer: 34.78 m/s</h2>

Explanation:

The momentum p is given by the following equation:

p=m.V   (1)

Where:

m is the mass of the object

V is the velocity of the object

Finding the velocity from (1):

V=\frac{p}{m}   (2)

V=\frac{4000kg.m/s}{115kg}  

<u>Finally:</u>

V=34.78m/s >>>This is the velocity of the object

4 0
3 years ago
Read 2 more answers
If molecules in a substance move FASTER will the TEMPERATURE increase or decrease?
statuscvo [17]

The temperature will increase

4 0
4 years ago
How to make a paper airplane curve down and fly upside down?
Ainat [17]
Throw it sideways and try to make it spin around but it needs to be thrown high up then it should kinda glide down
8 0
3 years ago
Read 2 more answers
A 65.0-kg woman steps off a 10.0-m diving platform and drops straight down into the water. 1) If she reaches a depth of 3.20 m,
timurjin [86]

Answer:

F=2627.6N

Explanation:

The work done by this resistive force while traveling a distance <em>d</em> underwater would be:

W=F.d=-Fd

where the minus sign appears because the force is upwards and the displacement downwards.

This work is equal to the change of mechanical energy. At the diving plataform and underwater, when she stops moving, the woman has no kinetic energy, so all can be written in terms of her total change of gravitational potential energy:

W=\Delta E=U_f-U_i=mgh_f-mgh_i=mg(h_f-h_i)

Putting all together:

F=-\frac{W}{d}=-\frac{mg(h_f-h_i)}{d}=-\frac{(65kg)(9.8m/s^2)(-3.2m-10m)}{3.2m}=2627.6N

7 0
3 years ago
What is the metric unit of measuring the volume of liquids?
-Dominant- [34]
Litres or millilitres
6 0
3 years ago
Other questions:
  • Which of the following places would u expect to have the coldest climate?
    5·2 answers
  • How do consumers sometimes interact with producers?
    10·2 answers
  • A truck is traveling due north at 50 km/hr approaching a crossroad. On a perpendicular road a police car is traveling west towar
    7·1 answer
  • A machine does 1,500 joules of work in 30 seconds. What is the power of this machine?
    11·1 answer
  • when a light bulb is turned on electrical energy is transformed into two other types of energy. What are they and support your a
    13·1 answer
  • Positional and non positional different between​
    8·1 answer
  • A rocket experiences a constant force even as the amount of fuel in its fuel tanks decreases. what happens to the acceleration o
    12·2 answers
  • Mess up my notes please part 1
    9·2 answers
  • Suppose a standing wave created on a spring that is 10.5 m long has a speed of 14 m/s and a frequency of 2 Hz. How many nodes an
    9·1 answer
  • True or false: When your ear detects sound, there is an actual collision of particles from the sound wave that hit your ear drum
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!