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
ch4aika [34]
4 years ago
9

What is the wavelength of a 256-hertz sound

Physics
1 answer:
Rzqust [24]4 years ago
3 0
Sound at air in STP travels at 343 m/s.

We also know the formula v=f lambda where v is the velocity, f is the frequency and lambda is the wavelength.

Substituting in values to this, we get:

343 = 256 * lambda
lambda = 343/256
=1.34 3sf

Aaand upon doing this, I realise your textbook wants you to assume the speed of sound to be 330m/s, right then, well changing the value to 330, we get 1.29m

You might be interested in
A 0.1 kg toy contains a compressed spring. when the spring is released the toy fly 0.45 m upwards from ground level before falli
trapecia [35]

The speed of the toy when it hits the ground is 2.97 m/s.

The given parameters;

  • mass of the toy, m = 0.1 kg
  • the maximum height reached by the, h = 0.45 m

The speed of the toy before it hits the ground will be maximum. Apply the principle of conservation of mechanical energy to determine the maximum speed of the toy.

P.E = K.E

mgh_{max} = \frac{1}{2} mv_{max}^2\\\\gh_{max} = \frac{1}{2} v_{max}^2\\\\v_{max}^2= 2gh_{max}\\\\v_{max} = \sqrt{2gh_{max}}

Substitute the given values and solve the speed;

v_{max} = \sqrt{2\times 9.8 \times 0.45} \\\\v_{max} = 2.97 \ m/s

Thus, the speed of the toy when it hits the ground is 2.97 m/s.

Learn more here: brainly.com/question/7562874

7 0
3 years ago
if you're shopping for a rack switch, what component on the switch tells you it can be mounted to a rack?
Tatiana [17]

if you're shopping for a rack switch, the component on the switch that tells you it can be mounted to a rack is the:

  • Rack ears

<h3>What are rack ears?</h3>

Rack ears are L-shaped objects that can be used to hold a rack switch firmly to the support walls. Rack ears are often found at the front panel of the rack which is to be mounted.

When a person purchases a rack switch and finds the rack ears there, it is a signal that the item can be secured firmly to rails. Sometimes, the rack ears also appear as extensions.

Learn more about rack ears here:

brainly.com/question/13318148

#SPJ4

6 0
2 years ago
How much does the gravitational force of attraction change between two asteroids if the two asteroids drift three times closer t
Katen [24]

Answer:

Increase 9 times

Explanation:

We have Newton formula for attraction force between 2 objects with mass and a distance between them:

F_G = G\frac{M_1M_2}{R^2}

where G =6.67408 \times 10^{-11} m^3/kgs^2 is the gravitational constant. M_1, M_2 is the masses of the 2 objects. and R is the distance between them.

Since the force is inversely proportional to the distance squared, if it is reduced by 3 times, the gravitational force between them would increase by 3^2 = 9 times

6 0
3 years ago
When a planet orbits the Sun, the
Anna [14]
I’m not sure I think it’s A
6 0
3 years ago
Read 2 more answers
While i was jogging, i wad able to run 5 miles in thirty minutes. from this information, we can determine my?
Llana [10]
You can only determine the speed since the only info we know is how much you ran in how long of a time.
7 0
3 years ago
Read 2 more answers
Other questions:
  • A lamp hangs vertically from a cord in a descending elevator that decelerates at 1.4 m/s2. (a) If the tension in the cord is 91
    5·1 answer
  • Be sure to answer all parts. Without stratospheric ozone (O3), harmful solar radiation would cause gene alterations. Ozone forms
    13·1 answer
  • Which statement about matter is correct? A) In matter, molecules never stop moving. B) In the solid state, molecules stop moving
    8·2 answers
  • 1. How much heat energy is required to raise the temperature of a 5 kg aluminium bar
    14·1 answer
  • A box has sides of 10 cm, 8.2 cm, and 3.5 cm. What is its volume?
    6·1 answer
  • A grasshopper jumps a horizontal distance of 1.50 m from rest, with an initial velocity at a 43.0° angle with respect to the hor
    10·2 answers
  • PLEASE HELP 50 pts + brainliest. 3. A laser light travels from air (n=1) through water (n=1.33), and then a piece of glass (n=1.
    9·1 answer
  • You are building a uniform to protect workers from all types of nuclear radiation. If you use material that blocks _____ radiati
    5·1 answer
  • A gas cylinder holds 0.10 mol of O2 at 150 C and a pressure of 3.0 atm. The gas expands adiabatically until the pressure is halv
    12·1 answer
  • A wave oscillates 5.0 times a second and has a speed of 8.0 m/s .What is the frequency of this wave?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!