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
ruslelena [56]
2 years ago
7

Find the frequency of a wave with the wavelength 3.5 m and the speed is 50 m/s. ​

Physics
1 answer:
Andru [333]2 years ago
7 0

Answer:

8.57 Hz

Explanation:

From the question given above, the following data were obtained:

Wavelength (λ) = 3.5 m

Velocity (v) = 30 m/s

Frequency (f) =?

The velocity, wavelength and frequency of a wave are related according to the equation:

Velocity = wavelength × frequency

v = λ × f

With the above formula, we can simply obtain the frequency of the wave as follow:

Wavelength (λ) = 3.5 m

Velocity (v) = 30 m/s

Frequency (f) =?

v = λ × f

30 = 3.5 × f

Divide both side by 3.5

f = 30 / 3.5

f = 8.57 Hz

Thus, the frequency of the wave is 8.57 Hz

You might be interested in
g Doppler Radar gathers information about precipitation by sending out pulses of ______ energy that is reflected back by the pre
allsm [11]

Answer:

Doppler Radar gathers information about precipitation by sending out pulses of ___Radio wave___ energy

7 0
3 years ago
The nucleus of an atom is composed of unchanged particles as well as of the following
Ivan
I suppose that you wanted write "uncharged". The particles without electrical charge present in the nucleus are called neutrons.
7 0
3 years ago
Which portion of the electromagnetic spectrum is used in a microscope?
erik [133]
Answer is C.
 
Optical microscope involves passing visible light transmitted through or reflected from the sample through a single or multiple lenses to allow a magnified view of the sample.

8 0
3 years ago
A rifle bullet with mass 8.00g strikes and embeds itself in a block with mass 0.992kg that rests on a frictionless, horizontal s
mafiozo [28]

Answer:

block velocity   v = 0.09186 = 9.18 10⁻² m/s  and speed bollet   v₀ = 11.5 m / s

Explanation:

We will solve this problem using the concepts of the moment, let's try a system formed by the two bodies, the bullet and the block; In this system all scaffolds during the crash are internal, consequently, the moment is preserved.

Let's write the moment in two moments before the crash and after the crash, let's call the mass of the bullet (m) and the mass of the Block (M)

Before the crash

     p₀ = m v₀ + 0

After the crash

   p_{f} = (m + M) v

    p₀ = p_{f}

    m v₀ = (m + M) v                    (1)

Now let's lock after the two bodies are joined, in this case the mechanical energy is conserved, write it in two moments after the crash and when you have the maximum compression of the spring

Initial

    Em₀ = K = ½ m v2

Final

    E m_{f}= Ke = ½ k x2

   Emo = E m_{f}

   ½ m v² = ½ k x²

   v² = k/m  x²

Let's look for the spring constant (k), with Hook's law

   F = -k x

   k = -F / x

   k = - 0.75 / -0.25

   k = 3 N / m

Let's calculate the speed

  v = √(k/m)   x

  v = √ (3/8.00)   0.15

  v = 0.09186 = 9.18 10⁻² m/s

This is the spped of  the  block  plus bullet rsystem right after the crash

We substitute calculate in equation  (1)

   m v₀ = (m + M) v

  v₀ = v (m + M) / m

  v₀ = 0.09186 (0.008 + 0.992) /0.008

  v₀ = 11.5 m / s

6 0
3 years ago
Momentum depends on what two factors
IrinaVladis [17]

mass and velocity

Explanation:

Momentum depends on two important factors which are the mass and velocity of a body.

  Momentum = mass x velocity

  • Momentum can be defined as the product of mass and velocity.
  • It is a vector quantity that has both magnitude and directions.
  • Momentum is a very important quantity in physics as it shows the impact of a force on another.
  • The unit is Kgm/s²
  • It is the same as impulse.

learn more:

Momentum brainly.com/question/2990238

#learnwithBrainly

3 0
3 years ago
Other questions:
  • Two students are on a balcony 19.1 m above the street. One student throws a ball, b1, vertically downward at 13.9 m/s. At the sa
    14·1 answer
  • What is the speed of a wave with a frequency of 0.2 Hz and a wavelength of 100 meters?
    13·2 answers
  • A 1,300 kg wrecking ball hits the building at 1.07 m/s2.
    11·2 answers
  • Write an Hypothesis whether land or water heats faster
    11·1 answer
  • A 0.12-kg softball is moving at 6 m/s when it is hit by a bat, causing it to reverse direction and have a speed of 14 m/s. what
    7·1 answer
  • Using the picture below, what is the displacement of the triangle?
    11·1 answer
  • Help I’ll cash app you $5 if you get it right!
    6·2 answers
  • The pressure in car tires is often measured in pounds per square inch (lb/in.2lb/in.2), with the recommended pressure being in t
    12·1 answer
  • An aircraft on its take-off run has a steady acceleration of 3 m/s2.
    11·1 answer
  • If you know what a JW is LET ME KNOW and it is a type of ppl
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!