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
vlada-n [284]
2 years ago
6

A wave travels at 330m/s^-1. the wavelength is found to be 2.4m.

Physics
1 answer:
sveta [45]2 years ago
7 0

Answer: frequency 137.5

Time period 0.01sec

Explanation:

You might be interested in
An ice skater spins at 2.5 rev/s when his arms are extended. He draws his arms in and spins at 10.0 rev/s. By what factor does h
Rainbow [258]

Answer:

The moment of inertia decreased by a factor of 4

Explanation:

Given;

initial angular velocity of the ice skater, ω₁ = 2.5 rev/s

final angular velocity of the  ice skater, ω₂ = 10.0 rev/s

During this process we assume that angular momentum is conserved;

I₁ω₁ = I₂ω₂

Where;

I₁ is the initial moment of inertia

I₂ is the final moment of inertia

I_2 = \frac{I_1 \omega_1}{\omega_2} = \frac{I_1*2.5}{10} \\\\I_2 = 0.25I_1 = \frac{1}{4}I_1

Therefore, the moment of inertia decreased by a factor of 4

4 0
2 years ago
Which of the following statements is/are true? Check all that apply. Check all that apply. The total mechanical energy of a syst
Taya2010 [7]

Answer:

1) True, 2) True, 3) False, 4) False, 5) False

Explanation:

1) True. Dissipative energy cannot be recovered, in general it is a form of heat

2) True. The dissipation can be by radiation, heat

3) False. Mechanical energy is divided into K and U but not in equal parts

4) False. When there are dissipative interactions, part of the mechanical energy is set in the form of heat, so its value decreases

5) False. Mechanical energy is the sum of those two energies

8 0
2 years ago
The long tube that moves food from the mouth to the stomach is called the __________.
AnnyKZ [126]
A the esophaguses!!!!!
3 0
3 years ago
What is the wavelength of a 2.50-kilohertz sound
Alexxx [7]
The formula v=fλ can be used here.

326=2500*λ

Note the 2500 as 2.5kHz is 2.5 thousand Hz.

λ = 326/2500
= 0.1304m = 0.130m
3 0
3 years ago
Why are hypothesis valuable even if it is not supported by data.
KengaRu [80]
A hypothesis proposes a mechanism of change that can be tested. If the results indicate the hypothesized mechanism is not the one in operation it narrows the field and we know more. A falsified hypothesis tested by a well designed experiment still provides real evidence about the world. 

<span>It was once thought that maggots spontaneously arose from carrion. This was tested and falsified providing evidence this was not how new generations of flies appeared. This still left the question of how flies generated new life to be explored. One falsified hypothesis does not block further research into the question.

</span><span>Even a failed hypothesis can increase scientific knowledge if done correctly. By knowing this hypothesis is not how something works, you save time for future scientists and can now use your effort in other investigations. That is the real value of hypothesis that are not supported by evidence.</span>
8 0
3 years ago
Read 2 more answers
Other questions:
  • An observation of the red shift of galaxies suggests that the universe is ______ a.. expanding.. b.. contracting.. c.. reversing
    7·2 answers
  • (4 points) What region is indicated by the shaded region in the figure to the right?
    7·1 answer
  • Most asteroids lie between the orbits of
    12·2 answers
  • 4748.36242611007 round to the nearest tenth
    9·2 answers
  • What is the kinetic energy of a 1130 kg truck that is moving with a velocity of 40 m/s?
    5·1 answer
  • What is the purpose of using significant figures? How does it relate to accuracy, precision, resolution, and uncertainty?
    8·1 answer
  • Which statements describe the energy in a food web? Select three options.
    12·1 answer
  • I'd like some help in these two questions please, thankyou so much. have a great day! stay safe and stay happy. (there are two p
    10·1 answer
  • The revolution of the earth around the sun demonstrate what motion?​
    8·1 answer
  • which of the glass lenses above, when placed in air, will cause rays of light (parallel to the central axis) to converge?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!