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
Irina18 [472]
3 years ago
14

A string is stretched between a fixed support and a pulley a distance 111 cm apart. The tension on the string is controlled by a

weight hanging from the string below the pulley. An electomechnical vibrator is used to vibrate the string at 120 Hz. When the weight is adjusted to 275 g, the string is found to oscillate in its third standing wave mode (three loops). What is the speed of wave propogation on the string in this mode?
Physics
1 answer:
kvv77 [185]3 years ago
3 0

Answer:

88.8 m/s= Speed of wave propagation in the required mode.(3 loops)

Explanation:

When there are 3 loops.  

the total length = L = 3 λ /2

⇒ λ  = 2 L / 3 = 2 ( 1.11 ) / 3 = 0.74 m

Velocity = v = f λ = (120)(0.74) = 88.8 m/s

You might be interested in
What is endurance? a). the ability to run faster b). a combination of balance and coordination c). how much you can stretch d).
Alex787 [66]

Answer:

D. the ability to exercise for longer periods of time

Explanation:

For example, when someone does endurance training, they are stretching their body's ability to do a certain exercise for longer times as opposed to increasing strength.

8 0
3 years ago
Two service technicians are discussing the best way to thread a rod. Technician A says they should use a tap and die set. Techni
Musya8 [376]

Answer:

Both technicians are right, to be able to make a threaded joint you need to use the external thread on one part of the rod using the tap and die set, and on the other side of the rod you need to have an internal thread using the thread repair insert kit

8 0
3 years ago
Which of the diagrams below illustrates sound waves generated by a siren
stepladder [879]

Diagram D. shows the sound waves generated by a siren

that is moving with constant speed to the left.

A sound wave is the sample of disturbance caused by the movement of strength journeying thru a medium because it propagates far away from the supply of the sound. Sound waves are created by using object vibrations and bring strain waves, for example, a ringing cellular phone.

Sound waves fall into three classes: longitudinal waves, mechanical waves, and strain waves. keep studying to find out what qualifies them as such. Longitudinal Sound Waves A longitudinal wave is a wave wherein the movement of the medium's debris is parallel to the course of the energy transport. Sound propagates via air or different mediums as a longitudinal wave, in which the mechanical vibration constituting the wave occurs along the direction of propagation of the wave.

Learn more about sound waves here:-brainly.com/question/1199084

#SPJ9

3 0
1 year ago
What is kinetic energy
mixas84 [53]
<span>(symbol K)</span><span> Energy that an object possesses because it is in motion. It is the energy given to an object to set it in motion; it depends on the mass (</span>m) of the object and its velocity (v<span>), according to the equation K = 1/2 </span>mv2<span>. On impact, it is converted into other forms of energy such as heat, sound and light.</span>
8 0
3 years ago
Gases in the first atmosphere came from
Darya [45]

Earth's original atmosphere was probably just hydrogen and helium, because these were the main gases in the dusty, gassy disk around the Sun from which the planets formed. The Earth and its atmosphere were very hot.

4 0
3 years ago
Other questions:
  • What is the primary energy that powers a car
    8·1 answer
  • The belief that race indicates certain traits and capacities and that one's own race is superior is called
    14·1 answer
  • For a satellite to be in a circular orbit 950 km above the surface of the earth, what orbital speed must it be given?
    12·1 answer
  • A general contractor drives 5 miles to the hardware store in 10 minutes. He shops for needed tools for 30 minutes, then drives t
    10·1 answer
  • In ice cap climates, the intense cold _____.
    6·2 answers
  • A vector has components Ax = 12.0 m and Ay= 5.00 m. What is the angle that vector A makes with the x-axis?a. 67.4ob. 32.6oc. 22.
    6·1 answer
  • Metric system please help me I don’t know how to do this
    5·1 answer
  • Polarizing windows, filters, etc. are often used to reduce the amount of light that enters the lens of a camera or into a room o
    8·1 answer
  • The diagram shows the electric field near conducting sphere a which of the following statements is correct
    15·1 answer
  • A runner begins a race from the starting line and accelerates to a speed of 8.9 m/s. If it takes the runner 3 seconds to reach h
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!