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
Allisa [31]
3 years ago
12

An electric buzzer is activated, then sealed inside a glass chamber. When all of the air is pumped out of the chamber, how is th

e sound from the buzzer affected?
Physics
1 answer:
Aleksandr-060686 [28]3 years ago
4 0
The sound is increased because sound waves are in fact mech. waves which means the  that they can't travel through empty space and thus need a medium to travel through
You might be interested in
On a cold winters day if you left a cup of water sitting outside it could freeze heat is transferred out of the water describe t
valkas [14]
The water molecules would slow down, and as they slow down, the heat created from their movement would cease.
4 0
3 years ago
Sound waves travel fastest through a A) gas. B) liquid. C) solid. D) vacuum.
earnstyle [38]

Sound waves travel faster through <em>solids</em> than they do through gases or liquids.  <em>(C)  </em>They don't travel through vacuum at all.

Example:

Speed of sound in normal air . . . around 340 m/s

Speed of sound in water . . . around 1,480 m/s

Speed of sound in iron . . . around 5,120 m/s

3 0
3 years ago
Read 2 more answers
A helicopter blade spins at exactly 110 revolutions per minute. Its tip is 4.50 m from the center of rotation. (a) Calculate th
NeX [460]

Answer:

(a). The average speed is 51.83 m/s.

(b). The average velocity over one revolution is zero.

Explanation:

Given that,

Angular velocity = 110 rev/m

Radius = 4.50 m

(a). We need to calculate the average speed

Using formula of average speed

v=r\omega

v = 4.50\times110\times\dfrac{2\pi}{60}

v=51.83\ m/s

(b). The average velocity over one revolution is zero because the net displacement is zero in one revolution.

Hence, (a). The average speed is 51.83 m/s.

(b). The average velocity over one revolution is zero.

8 0
2 years ago
An object of mass 6.00 kg falls with an aceleration of 8.00 m/s2. The magnitude of air resitance must be ____ N
allsm [11]
Using Newton's Second Law, we can find the air resistance. We know the net force is equal to mass times acceleration.F_{net} = m*a = (6.00kg)(8.00 \frac{m}{s^2}) = 48N &#10;&#10;F_{g} - F_{d} = 48N&#10;&#10;48N = (6.00kg)(9.81m/s^2) - F_{d} &#10;&#10;F_{d} = 10.86N


7 0
3 years ago
An object is located 70 cm from a concave mirror with a focal length of 15 cm. What is the image
Stels [109]

(a) The distance of the image formed by the concave mirror is 19.1 cm.

(b) The image formed is diminished and real.

<h3>Image distance </h3>

The distance of the image formed by the concave mirror is calculated as follows;

1/f = 1/v + 1/u

1/v = 1/f - 1/u

1/v = 1/15 - 1/70

1/v = 0.05238

v = 1/0.05238

v = 19.1 cm

The image distance is smaller than object distance, thus the image formed is diminished and real.

Learn more about concave mirror here: brainly.com/question/13164847

#SPJ1

5 0
1 year ago
Other questions:
  • A string is wrapped around a pulley with a radius of 2.0 cm. The pulley is initially at rest. A constant force of 50 N is applie
    7·1 answer
  • Your teacher has given each lab group four liquids. Each liquid has been tinted using food coloring. Your teacher has asked you
    10·2 answers
  • How volcanoes are made summary
    15·1 answer
  • Objects 1 and 2 attract each other with a electrostatic force
    15·2 answers
  • The space around a charge or a pole in which a force is experienced is called a:
    8·1 answer
  • Newspapers often talk about an energy crisis-about running out of certain energy sources in the not-so-distant future. About whi
    13·1 answer
  • A bowling ball weighing 71.7 N is attached to the ceiling by a rope of length 3.73 m . The ball is pulled to one side and releas
    9·1 answer
  • WHAT ARE THREE TECHNICAL ADVANCEMENTS
    14·1 answer
  • How much force is required to accelerate a 12 kg mass at m 5 m/s
    13·1 answer
  • How do you find the net force of 225 N
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!