How fast does a 500.0 Hz sound wave travel in air if its wavelength is 0.68 m?
Answers
Hello,
QUESTION)✔ We have : λ = T x v ⇔ v = λ x f
v = 500 x 0,68 v = 340 m/sThe speed of this sound wave is therefore 340 m/s.
Related Questions
the main purpose of the turbine in a turbojet engine is to
Answers
Answer:
The main purpose of the turbine in the turbojet engine is to Drive the compressor.
Explanation:
A pendulum has a mass of 0.060 kg swinging at a small angle from a light string, with a period of 1.4 s. What is the length of the pendulum?
Answers
Answer:
0.5 m
Explanation:
From the question given above, the following data were obtained:
Mass (m) = 0.060 kg
Period (T) = 1.4 s
Lenght (L) =?
NOTE:
1. Acceleration due to gravity (g) = 10 m/s²
2. Pi (π) = 3.14
The length of the pendulum can be obtained as follow:
T = 2π√(L/g)
1.4 = 2 × 3.14 × √(L/10)
1.4 = 6.28 × √(L/10)
Divide both side by 6.28
1.4 / 6.28 = √(L/10)
Take the square of both side
(1.4 / 6.28)² = L/10
Cross multiply
L = 10 × (1.4 / 6.28)²
L = 0.5 m
Therefore, the length of the pendulum is 0.5 m
Answer:0.49
Explanation:
Khan academy
Can someone please help me and i will give brainliest if i can.
Answers
Answer:
Because 1 change in one factor can effect the other and that one can effect the other and so on and so on.
So, let's just say water were to stop flowing, how would the oceans take that? How would precipitation take it?
help pls this is for science
Answers
Answer:
It's a transverse wave.
The distance from Earth to the North Star is about 430 light-years. Which of the following statements describes why scientists use the light-year unit to measure distance in space?
A.) A light-year is very small and distance in space are very small
B.) A light-year unit is very small and the distance in space are very large
C.) A light-year unit is very large and distance in space are very small
D.) A light-year unit is very large and distance in space are very large
Answers
Answer:
D
Explanation:
D
Write forty million in scientific notation.
Answers
Answer: 4 x 106
That’s how you write forty million in scientific notation.
Answer:
40,000,000 ⇒ scientific notation
= 4 × [tex]10^{7}[/tex]
what type of galaxy tends to be the oldest? Explain.
Answers
Answer:
Elliptical galaxies, such as M87, are the oldest and roundest galaxies in the universe. Astronomers think these galaxies are formed in major mergers—dramatic collisions between galaxies that result in one massive galaxy being entirely consumed by another.
Explanation:
hope this helps...
have a good day...
2. You are stirring some soup on the stove and you notice that the metal spoon is getting hot.
What type of heat transfer?
Answers
Conduction is the process by which heat energy is transmitted through collisions between neighboring atoms or molecules.
Ana walks from 4 m to 200 cm. Which of the following statements is true about
her motion? Explain
distance = 2 hm
distance = 20 cm
distance = 2 cm
distance = 2.0 m
Answers
because 200cm = 2m
so 4m-2m=2m
what’s the equation for this
Answers
help me with this question plz
Answers
Answer:
Greatest position of the ball are z
What is the acceleration of a 5.9 kilogram bowling ball if a force of 11 N is applied to it?
Answers
Answer:
1.86 [tex]m/s^{2}[/tex]
Explanation:
Acceleration = [tex]\frac{Force}{mass}[/tex]
Force = 11N
Mass = 5.9 kg
∴ Acceleration = [tex]\frac{11}{5.9}[/tex]
= 1.86 [tex]m/s^{2}[/tex]
A car is driving along a road at a speed of 50 km/hr. How far will the car travel in 5 hours?
Answers
Answer:
I think it's 250
Explanation:
If the car is traveling 50 km/hr that means every hour, the car drives 50 km. So if you want to know how far it will go in 5 hours you do 50x5.
What confirms that the process of seafloor spreading is occurring?
Answers
The mountain ranges in the middle of the oceans
Sea floor spreading
The process by which new, oceanic crust forms along a mid ocean ridge and older crust moves away from the ridge. :)
what is jello tell me i know lets see if you know
Answers
A measure of the body's resting energy expenditure based on data that is collected four hours after eating or physical activity is called the _________?
Answers
i need help with 1-10
Answers
Answer:
1) C. Energy
2) A. Joule
3) D. Joule
4) B. Potential
5) A. Greater
6) C. Largest
7) A. Speed and mass
8) A. Kinetic
9) A. Kinetic
10) D. Height and mass
HERES THE ANSWER AND QUESTION
Check all that are solutions of the inequality.
-1.2
0
-1.4
Negative 1 and one-third
-1.25
-1
THE ANSWER IS A,B,F
Answers
Answer:
agree
Explanation:
Answer:
THE ANSWER IS A,B,F
Explanation:
Ball A is projected vertically upwards at a velocity of 16m.s-¹ fron the ground. ignore the effects of air friction. use the ground as zero reference. a) calculate the time taken by ball A to return to the ground. b) draw a velocity time graph for ball A
Answers
Answer: 3.26 s
Explanation:
Given
The ball is projected upward with a velocity [tex]u=16\ m/s[/tex]
Using the equation of motion
[tex]s=ut+\frac{1}{2}at^2[/tex]
Here, displacement is zero as the ball returns to its initial position
[tex]\Rightarrow 0=16\times t-0.5\times g\times t^2\\\Rightarrow t(16-0.5\times 9.8\times t)=0\\\text{i.e.}\ t=\dfrac{16}{4.9}=3.26\ s[/tex]
the velocity of the ball at any instant is given by
[tex]v=u+at\\v=16-9.8t[/tex]
What causes the apparent colors of the objects we see?
Answers
Answer: The human eye and brain transform light into color. Allowing us to see them.
Explanation: Light receptors within the eye turn light into color. The color that is reflected off of an object, is what we see. Hope this helps.
The apparent colors of the objects we see causes due to reflection of the light which they absorb and emit.
What is reflection?Reflection is the change in direction of a wavefront which occurs at an interface present between the two different media so that the wavefront of the wave returns into the medium from which it has been originated. Common examples of reflection include the reflection of light, sound wave and water waves.
The color of an object is the wavelengths of light waves that it reflects. The reflection is determined by the arrangement of electrons in the atoms of that substance which will absorb and re-emit photons of particular energy levels according to the quantum laws.
Learn more about Reflection here:
https://brainly.com/question/30270479
#SPJ6
Nuclear energy is released during____.
SELECT ALL THAT
1. Chemical reactions
2. Fission
3. Radioactive decay
4. Breakup of molecular bonds
5. Induced splitting of atoms
Answers
Answer: fission and radioactive decay
And induced splitting of atoms
Explanation:
Kelly sits on a rock in a field. Which of the following examples correctly name force pairs? Select all that apply.
А
Kelly pushes on the rock, and the rock pushes on Earth.
B
Earth pulls on Kelly, and Kelly pulls on Earth.
с
The rock pushes on Earth, and Earth pulls on the rock
D
Kelly pushes on the rock, and the rock pushes on Kelly.
Answers
Answer:
A
Explanation:
A toy cart with a weight of 10N moves with a constant velocity of 2 m/s to the right on a horizontal table. According to Newton's Laws of Motion, which of the following statements is correct?
a
The table exerts a force of 10N upward on the toy cart.
b
The toy cart exerts a force of 10N upward on the toy table.
c
The toy cart exerts a force of 2N downward on the table.
d
The toy cart exerts a force of 2N to the right on the table.
Answers
Answer:
Its A ik cuz i just studied it when i was answering this question...
Explanation:
have a good day!
You travel 200 m in 120minutes. What is your speed in miles per hour?
Answers
Answer:
100
Explanation:
60 minutes is an hour and there are 120 minutes so there are 2 hours. You divide 200 m by 2 and you get 100.
6. Ella holds an ice cream cone in her hand. She soon notices that her hand begins
to feel cold. What is different about the particles that make up her hand?
A They are getting larger.
B They are gaining average energy.
C They are moving slower on average.
D They are joining together.
Answers
Answer:
C
Explanation:
the ice cream is transferring the coldness into her hand and slowing down the particles. hot means they move faster, cold is to slow down
What type of collision conserves total system kinetic energy?
Answers
Answer: Elastic collision
Explanation:
In an elastic collision there is no loss of kinetic energy as a result of the collision
Define discrimination and write a sentence using the word.
Define discrimination and write a sentence using the word.
Answers
Answer:
discrimination: prejudice towards a person/group based on their race, sex, age, and/or sexual orientation
Explanation:
People of color face discrimination because of the color of their skin.
Answer:
Discrimination is treatment or consideration of, or making a distinction of or against a person or thing based on the group, class or category to which that person is perceived to belong or rather.
A 4kg object has a momentum of 12 kg*m/s, what is the objects velocity?
Answers
Answer:
3m/s
Explanation:
momentum=mass x velocity
to find velocity...
we change subjects and make velocity the subject,thus , velocity=momentum/mass
v=12/4 =3m/s.
A marble is thrown horizontally with a speed of 15.0 m/s from the top of a building. When it strikes the ground, the marble has a velocity that makes an angle of 65.0° with the horizontal. From what height above the ground the marble was thrown. How far from the base of the building, did the marble land?
Answers
I used this formula to get the formula for Vy:
v^2=vi^2+2(a)(x)
And got
Vy=square root (19.6 h)
Then I used that and put it in this formula:
tan(65) =Vy/Vx
tan(65) = square root (19.6 h)/15.0
Then I rearranged it to:
h=[(15.0)(tan65)]/19.6
h=52.79 m
How many significant digits are in the number 0.010?
Answers
explanation:
Trailing zeros after a decimal point count if preceded by a non-zero value. Example: 0.01 one significant figure, 0.010 two significant figures, 0.0100 three significant figures.