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
ioda
3 years ago
6

A CD has to rotate under the readout-laser with a constant linear velocity of 1.25 m/s. If the laser is at a position 3.7 cm fro

m the center of the disk, what are the revolutions per minute (rpms) of the disk?
Physics
1 answer:
Savatey [412]3 years ago
8 0

Answer:N=322.53 rpm

Explanation:

Given

Linear velocity (v)=1.25 m/s

Position from center is 3.7 cm

we know

v=\omega \times r

1.25\times 100=\omega \times 3.7

\omega =\frac{125}{3.7}=33.78

and \frac{2\pi N}{60}=\omega

N=\frac{\omega \times 60}{2\pi }

N=\frac{33.78\times 60}{2\pi }

N=322.53 rpm

You might be interested in
Mixing chemicals in a cold pack creates a reaction that:
MatroZZZ [7]
Honestly i don’t know but I’d just guess if I were you
7 0
3 years ago
Read 2 more answers
How does the function of the parts of the system contribute to its function as a whole
oksano4ka [1.4K]
Answer and explanation: Just as the organs in an organ system work together to accomplish their task, so the different organ systems also cooperate to keep the body running. For example, the respiratory system and the circulatory system work closely together to deliver oxygen to cells and to get rid of the carbon dioxide the cells produce.
4 0
2 years ago
The number of waves that pass a given point in a second is___.
Kisachek [45]

Answer:

Frequency

Explanation:

The frequency ( ) of a wave is the number of waves passing a point in a certain time.

5 0
3 years ago
T or f :static electricity constantly flows in the same direction
Kazeer [188]

Answer:

False

because I got that question and I gotted right

6 0
3 years ago
How much does it cost to install led lights in car?
Goryan [66]
<span>about $137.00 (plug n play) http://store.racer-union.com try this web site they are the cheapest by about 100 dollars.</span>
3 0
3 years ago
Read 2 more answers
Other questions:
  • Please help me with this homework
    10·2 answers
  • Water absorbs and releases large amount of energy before changing temperature, a characteristic known as
    10·1 answer
  • A train is travelling at speed of 20m/s. Brakes are applied so as to produce a uniform acceleration of -0.5m/s2. find how far th
    9·1 answer
  • What is the best approximate value for the elastic potential energy (EPE) of the spring elongated by 3.0 meters?
    8·1 answer
  • You watch a distant lady driving nails into her front porch at a regular rate of 2 strokes per second. You hear the sound of the
    13·1 answer
  • Jesse watches the Moon rise around 6:00 PM. When will the Moon most likely set?
    14·2 answers
  • The most common type of mirage is an illusion that light from faraway objects seem to be reflected by a pool of water that is no
    10·1 answer
  • 2. A person lifts 200kg seven times over the course of 11.8s. If they displaced the weight 2.2m up each time, how much power did
    11·1 answer
  • The image formed by the pinhole camera is smaller than that of the object <br> true or false
    13·1 answer
  • What is the mass of the rock?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!