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
Mkey [24]
3 years ago
6

The graph shows a wave that oscillates with a frequency of 60 Hz. Based on the information given in the diagram, what is the spe

ed of the wave?

Physics
1 answer:
Snezhnost [94]3 years ago
5 0

Answer:

900 cm/s or 9 m/s.

Explanation:

Data obtained from the question include the following:

Length (L) = 30 cm

frequency (f) = 60 Hz

Velocity (v) =.?

Next, we shall determine the wavelength (λ).

This is illustrated below:

Since the wave have 4 node, the wavelength of the wave will be:

λ = 2L/4

Length (L) = 30 cm

wavelength (λ) =.?

λ = 2L/4

λ = 2×30/4

λ = 60/4

λ = 15 cm

Therefore, the wavelength (λ) is 15 cm

Now, we can obtain the speed of the wave as follow:

wavelength (λ) = 15 cm

frequency (f) = 60 Hz

Velocity (v) =.?

v = λf

v = 15 × 60

v = 900 cm/s

Thus, converting 900 cm/s to m/s

We have:

100 cm/s = 1 m/s

900 cm/s = 900/100 = 9 m/s

Therefore, the speed of the wave is 900 cm/s or 9 m/s.

You might be interested in
An object of mass 30 kg is falling in air and experiences a force due to air resistance of 50 newtons. Determine the net force a
KengaRu [80]

Explanation:

Draw a free body diagram.  There are two forces: weight force pulling down and air resistance pushing up.

Sum the forces in the y direction:

∑F = 50 N − (30 kg) (10 m/s²)

∑F = -250 N

3 0
3 years ago
The weights of soy patties sold by a diner are normally distributed. A random sample of 15 patties yields a mean weight of 3.8 o
shepuryov [24]

Complete Question

The weights of soy patties sold by a diner are normally distributed. A random sample of 15 patties yields a mean weight of 3.8 ounces with a sample standard deviation of 0.5 ounces. At the 0.05 level of significance,perform a hypothesis test to see if the true mean weight is  less than 4 ounce.

Answer:

Yes the true mean weight is less than 4 ounce

Explanation:

  From the question we are told that

     The random sample is n = 15

       The mean weight is \= x = 3.8\  ounce

        The standard deviation is  \sigma = 0.5 \ ounce

         The  level of significance is  \alpha  = 0.05

       

So

   The  null hypothesis is  H_o : \mu \ge 4

     The alternative hypothesis is H_a : \mu < 4

Generally the critical value which a bench mark to ascertain whether the null hypothesis is  true or false is mathematically represented as

            t_{0.05} = 1.79

This value is  obtained from  the critical value table

Generally the test statistics is mathematically represented as

                Test \ Statistics (ST)  = \frac{\= x - \mu }{\frac{\sigma}{\sqrt{n} }  }

           =>  ST = \frac{3.8 -4 }{\frac{0.5}{\sqrt{20} } }

                ST = - 1.79

So since ST is less than t_{0.05}  then the null hypothesis would be rejected and the alternative hypothesis would be accepted so

  Thus the true mean weight is less than 4

4 0
3 years ago
Which model best represents a pattern
olasank [31]
Where is the options ?
3 0
2 years ago
Read 2 more answers
PLEASE HELP WILL GIVE BRAINLIEST!
Igoryamba

C. FM radio waves is the answer.

6 0
3 years ago
We measure the loudness of sound in decibels.<br> a. True<br> b. False
Tatiana [17]

Answer: The correct answer is True.

Explanation:

Loudness of sound is referred to how soft or loud a sound is for the listener.

This term is measured in a unit known as decibels referred to as dB.

This unit is used to measure the relative intensity of sounds on a scale from zero to 100 dB.

More the value of decibels, it will be uncomfortable for a person to hear that sound.

So Yes, the loudness of sound is measured in decibels.

7 0
3 years ago
Other questions:
  • Summarize how psychology is considered a science.
    8·2 answers
  • Any object that just fits into your visual field has this angular size. Do all objects that you see this this angular size have
    13·1 answer
  • Jade and her roommate Jari commute to work each morning, traveling west on I-10. One morning Jade left for work at 6:45 A.M., bu
    15·1 answer
  • Playing catch with a friend in a moving train. When you toss the ball in the direction the train is moving, how does the speed o
    12·2 answers
  • A 7.0 kg mass is lifted 4.0 m above the ground. Find the change in gravitational energy.
    15·1 answer
  • Need help on these questions
    8·1 answer
  • El periodo de oscilación de un péndulo es de 4 segundo calcular el valor de la frecuencia​
    12·1 answer
  • Calculate magnitude and direction of the force between a 1.4 X 10 -3 C charge and a 9.1 X 10 -4 charge when they are separated b
    14·1 answer
  • PLEASE HELP!!! PLEASE HELP!!!
    15·1 answer
  • A 10 g dime and a 200 g gold coin are dropped from the Empire State Building in
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!