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
77julia77 [94]
3 years ago
6

A student in her physics lab measures the standing-wave modes of a tube. The lowest frequency that makes a resonance is 30 Hz. A

s the frequency is increased, the next resonance is at 90 Hz.
What will be the next resonance after this?
Physics
1 answer:
uranmaximum [27]3 years ago
6 0

Answer:

The next resonance will be 150 Hz.

Explanation:

The frequency of the sound produced by a tube, both open and closed, is directly proportional to the speed of propagation. Hence, to produce the different harmonics of a tube, the wave propagation speed must be increased.

The frequency of the sound produced by a tube, both open and closed, is inversely proportional to the length of the tube. The greater the length of the tube, the frequency is lower.

Frecuency of the standing sound wave modes in a open-closed tube is:

fₙ=n*f₁ where m is an integer and f₁ is the first frecuency (30 Hz)

The next resonance is at 90 Hz. This means that it occurs when n = 3:

f₃=3*30 Hz= 90 Hz

This means that the next resonance occurs when n = 5:

f₅=5*30 Hz= 150 Hz

<u><em>The next resonance will be 150 Hz.</em></u>

<u><em></em></u>

You might be interested in
A race car's velocity increases from +28 m/s to +36 m/s over a 2.0-s time interval. What is the car's
BigorU [14]

Answer:

4 m/s^{2}

Explanation:

Acceleration, a=\frac {v-u}{t}

Where v and u are the final and initial velocities of the race car respectively, t is the time taken for the race car to attain velocity of 36 m/s.

Substituting 36 m/s for v, 28 m/s for u and 2 s for t then

a=\frac {36 m/s-28 m/s}{2}=4 m/s^{2}

3 0
3 years ago
An Aichi D3A bomber, with mass of 3600 kg, departs from its aircraft carrier with a velocity of 85 m/s due east. What is the pla
Nataliya [291]

Answer:

306000 is the answer.......

7 0
3 years ago
The speed of a rocket just after being launched is 12 m / s.
drek231 [11]

This question involves the concepts of the equations of motion, kinetic energy, and potential energy.

a. The kinetic energy of the rocket at launch is "3.6 J".

b. maximum gravitational potential energy of the rocket is "3.6 J".

<h3>a. KINETIC ENERGY AT LAUNCH</h3>

The kinetic energy of the rocket at launch is given by the following formula:

K.E=\frac{1}{2} m v_i^2

where,

  • K.E = initial kinetic energy = ?
  • m = mass of rocket = 0.05 kg
  • v_i = initial speed = 12 m/s

Therefore,

K.E=\frac{1}{2}(0.05\ kg)(12\ m/s)^2

K.E = 3.6 J

<h3>b. MAXIMUM GRAVITATIONAL POTENTIAL ENERGY</h3>

First, we will use the third equation of motion to find the maximum height reached by rocket:

2gh=v_f^2-v_i^2

where,

  • g = -9.81 m/s²
  • h = maximum height = ?
  • vf = final speed  = 0 m/s

Therefore,

2(-9.81 m/s²)h = (0 m/s)² - (12 m/s)²

h = 7.34 m

Hence, the maximum gravitational potential energy will be:

P.E = mgh

P.E = (0.05 kg)(9.81 m/s²)(7.34 m)

P.E = 3.6 J

Learn more about the equations of motion here:

brainly.com/question/5955789

4 0
2 years ago
Which statement best compares these two waves
makvit [3.9K]
“Wave-B is every bit as invisible as Wave-A is.”
4 0
3 years ago
Which is the atomic number of zirconium? A.39 B.40 C.41 D.42
grandymaker [24]
B. The atomic number of zirconium is 40.
5 0
3 years ago
Read 2 more answers
Other questions:
  • 1 point
    6·1 answer
  • The motor driving a grinding wheel with a rotational inertia of 0.36 kg m2 is switched o? when the wheel has a rotational speed
    12·1 answer
  • In the situation shown below, the safe is 5 meters off the ground. How much rope is lying on the ground?
    13·1 answer
  • The amplitude of a sound is the A. frequency of the sound. B. magnitude of displacement of a sound pressure wave. C. psychologic
    9·2 answers
  • Heres a random question just for fun and out. of boredom ok so who started the nasa program? and why? what made him want to do t
    15·1 answer
  • Both a fire blanket and the spray from a fire extinguisher put out a fire by pressing down on the fire and pushing any oxygen aw
    13·2 answers
  • A certain humidifier operates by raising water to the boiling point and then evaporating it. Every minute 30 g of water at 20◦ C
    12·1 answer
  • A gust of wind pushes a beach ball with a force of 9 newtons. The ball rolls 10 meters in 3 seconds. What is the power of the wi
    8·2 answers
  • Which of the following concepts helps explain the modern technology used in 3D films?
    7·1 answer
  • Vz = 24 m/s , Vy = 39 m/s. Find the vector's direction.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!