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
Sergeeva-Olga [200]
3 years ago
8

A vinyl record is played by rotating the record so that an approximately circular groove in the vinyl slides under a stylus. Bum

ps in the groove run into the stylus, causing it to oscillate. The equipment converts those oscillations to electrical signals and then to sound. Suppose that a record turns at the rate of 33 1 3 rev/min, the groove being played is at a radius of 10.0 cm, and the bumps in the groove are uniformly separated by 1.75 mm. At what rate (hits per second) do the bumps hit the stylus?
Physics
1 answer:
AleksandrR [38]3 years ago
8 0

Answer:

Hits per second=199 hit/s

Explanation:

#Given the angular velocity, \omega=33\frac{1}{3} rev/min , radius of the record r=0.1m and the distance between any two successive bumps on the groove as d=1.75mm.

The linear speed of the record in meters per second is:

v=\omega r=33\frac{1}{3}\times\frac{2\pi}{60}\times 10\times 10^{_2}\\\\=0.3843m/s\\

#From v above, if the bumps are uniformly separated by 1m, then the rate at which they hit the stylus is:

Hits/second=v/d    \ \ \ \ d=1.75mm\\\\=0.3483/0.000175\\\\=199.0385714\approx 199

Hence the bumps hit the stylus at around 199hit/s

You might be interested in
. According to Piaget’s stages of cognitive development, the child does not differentiate between self and other objects. The ch
daser333 [38]
Iouhkpuvivgpgpcpg. Bigot octyou coyote
4 0
3 years ago
Read 2 more answers
Atoms in a molecule are bonded together by sharing gaining or losing_
leva [86]
Atoms and I molecule are bonded together by sharing gaining or losing electrons
5 0
3 years ago
A uniformly charged rod (length = 2.0 m, charge per unit length = 3.0 nC/m) is bent to form a semicircle. What is the magnitude
Yuki888 [10]

Answer:

The magnitude of the electric field at the center of the circle is 85 N/C

The correct option is b. 85 N/C

Explanation:

Please see the attachments below

8 0
3 years ago
10 turns of wire are closely wound around a pencil as shown in the figure. when measured using a scale as shown, the length of t
Mila [183]

Answer:

a. The thickness of the wire is 2.5 mm.

b. The wire is 0.25 cm thick.

Explanation:

Number of turns of the wire = 10

The length of total turns = 25 mm

a. The thickness of the wire can be determined by;

thickness of the wire = \frac{length of total turns}{number of turns}

                           = \frac{25}{10}

                           = 2.5 mm

Therefore, the wire is 2.5 mm thick.

b. To determine the thickness of the wire in centimetre;

10 mm = 1 cm

So that,

2.5 mm = x

x  = \frac{2.5}{10}

   = 0.25 cm

The wire is 0.25 cm thick.

8 0
3 years ago
Which scientist continued the work of another while studying the elliptical path of planets? Name both scientists. Kepler advanc
Korolek [52]
This question is so vague as to render it useless.

I suspect the answer they're looking for is Kepler advanced Copernicus's work as is stated. but the way science works is that anyone who has contributed will have their work built on. for example, Newton advanced Kepler's work on the elliptical path of planets as Einstein advanced Newton's work.
3 0
4 years ago
Read 2 more answers
Other questions:
  • 7. Which of the following accurately describes junction diodes? A. In a forward-biased setup, large numbers of charge carriers w
    14·1 answer
  • What did the greeks call the mineral they found and why?
    6·1 answer
  • Sentences How to calculate the orbital period
    10·1 answer
  • What happens to light when it enters a lens?
    14·2 answers
  • A 250 kg motorcycle starts at rest at a stoplight. When the light turns green the motorcycle accelerates to 20 m/s in 4 seconds.
    12·1 answer
  • Kiran runs along a straight road of length 150 m. After
    15·1 answer
  • The refractive index of glass is 1.52
    13·1 answer
  • Two polarizing sheets have their transmission axes crossed so that no light is transmitted. A third sheet is inserted so that it
    11·1 answer
  • A car accelerates uniformly from 18km per hour to 36km per hour in 10 seconds . Calculate the acceleration in km/h^2
    5·2 answers
  • There are different kinds of muscles in the human body. Each muscle is formed from a group of cells that works together. The mai
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!