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
Lilit [14]
3 years ago
13

Un lector de DVD, la velocidad de giro es de 5400 rpm. determina el valor velocidad angular en rad/s,la frecuencia y el periodo

si se sabe que w=2pi f
Physics
1 answer:
zubka84 [21]3 years ago
3 0

Responder:

A) ω = 565.56 rad / seg

B) f = 90Hz

C) 0.011111s

Explicación:

Dado que:

Velocidad = 5400 rpm (revolución por minuto)

La velocidad angular (ω) = 2πf

Donde f = frecuencia

ω = 5400 rev / minuto

1 minuto = 60 segundos

2πrad = I revolución

Por lo tanto,

ω = 5400 * (rev / min) * (1 min / 60s) * (2πrad / 1 rev)

ω = (5400 * 2πrad) / 60 s

ω = 10800πrad / 60 s

ω = 180πrad / seg

ω = 565.56 rad / seg

SI)

Dado que :

ω = 2πf

donde f = frecuencia, ω = velocidad angular en rad / s

f = ω / 2π

f = 565.56 / 2π

f = 90.011669

f = 90 Hz

C) Periodo (T)

Recordar T = 1 / f

Por lo tanto,

T = 1/90

T = 0.0111111s

You might be interested in
Potential energy results from the ______or position of an object.
Burka [1]

Answer:

Mass

Explanation:

8 0
2 years ago
A certain electromagnetic wave traveling in seawater was observed to have an amplitude of 98.02 (V/m) at a depth of 10 m, and an
maksim [4K]

Answer:

The  value is   \alpha =  0.002 Np/m

Explanation:

From the question we are told that

  The first amplitude of the wave is  E_{max}1 =  98.02 \  V/m

  The first  depth  is  D_1 =  10 \  m

   The second amplitude is  E_{max}2 =  81.87 \  (V/m)

   The second depth is D_2 = 100 \ m

Generally from the spatial wave equation we have

   v(x) =  Ae^{-\alpha d}cos(\beta x  + \phi_o)

=>       \frac{v(x)}{v(x)} =\frac{  Ae^{-\alpha d}cos(\beta x  + \phi_o)}{ Ae^{-\alpha d}cos(\beta x  + \phi_o)}

So considering the ratio of the equation for the  two depth

\frac{A}{A_S}  =  \frac{e^{-D_1 \alpha }}{e^{-D_2 \alpha }}

=>   \frac{98.02}{81.87}  =  \frac{e^{-10 \alpha }}{e^{-100 \alpha }}

=>   \alpha  =  \frac{0.18}{90}

=>    \alpha =  0.002 Np/m

       

4 0
3 years ago
Using the graph predict how many paper clipsa 7.5 v battery would pick up for both the 25 coil electromagnet and the 50 coil ele
enyata [817]

The graph between the strength of the magnet(number of paper clips picked) and battery is approximately a straight line.

For 25 coil, with increase of 1.5 V battery voltage, the electromagnet picks about 5 more clips. So, for a 7.5 V battery, it would pick about 30 paper clips.

For 50 coil, with increase of 1.5 V battery voltage, the electromagnet picks about 15 more clips. So, for a 7.5 V battery, it would pick about 30 paper clips.

3 0
3 years ago
Which statement best describes the direction of the buoyant force on any object?
poizon [28]

The buoyant force on any object acts in the direction opposite to the force of gravity.  <em>(A)</em>

5 0
3 years ago
Read 2 more answers
Bronco the skydiver, whose mass is 100 kg experiences 200 N of air resistance. What is the acceleration of his fall? Show Work
bekas [8.4K]

Explanation:

air resistance (f) =mg

200=100g

g=200/100

g=2m/s^2

5 0
2 years ago
Other questions:
  • Identify properties of a human body system
    12·1 answer
  • What Type of relationship exists between the Temperature of a Star and the Wavelength of a Star?
    9·2 answers
  • Which of the following is not true about a good streching routines
    9·1 answer
  • Computer programs like spreadsheets can be used to help organize and analyze data. True or false
    6·2 answers
  • Explain why the output work for any machine cant be greater than the input work
    9·1 answer
  • Which is not standing in the way of astronomers getting a good view of distant stars? A. some stars are too far away for our tel
    13·1 answer
  • A rocket moves through outer space at 11,000 m/s. At this rate, how much time would be required to travel the distance from Eart
    10·1 answer
  • Which of the following electromagnets is the strongest? Why?​
    6·1 answer
  • Distance vs. displacement
    13·1 answer
  • According to one of the laws of thermodynamics, energy cannot be what?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!