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
maria [59]
3 years ago
6

Will give brainliest if correct Please help

Physics
2 answers:
Mumz [18]3 years ago
5 0

Answer:

85.45

Divide 4,700/55

So C.

aivan3 [116]3 years ago
4 0

Answer:

C.85

Explanation:

Use the equation:

v= fλ ( v=wave speed, f= frequency, λ= wavelength)

4700= 55×λ

λ=4700÷55 =85.45 =85(approximately)

You might be interested in
Which option is an example of a physical property?
Kitty [74]
B. Density. I hope this helps!
8 0
3 years ago
Read 2 more answers
There is a filing cabinent that is 52 in. tall and 15 in. wide. The center of gravity of the cabinet is right at the center. To
erastova [34]

Answer:

16 degrees

Explanation:

The tipping point of the cabinet is sketched below.

5 0
2 years ago
When an object of mass m1 is hung on a vertical spring and set into vertical simple harmonic motion, its frequency is 12Hz. When
anzhelika [568]

Answer:

Explanation:

Given

When m_1 mass is attached to the spring its frequency is f_1=12\ Hz

when another mass m_2 is attached to m_1 , frequency changes to f_2=4\ Hz

frequency of spring mass system is given by

f=\frac{1}{2\pi }\sqrt{\frac{k}{m}}

for m_1

f_1=\frac{1}{2\pi }\sqrt{\frac{k}{m_1}}

12=\frac{1}{2\pi }\sqrt{\frac{k}{m_1}}-----1

for m_1 and m_2

f_2=\frac{1}{2\pi }\sqrt{\frac{k}{m_1+m_2}}

4=\frac{1}{2\pi }\sqrt{\frac{k}{m_1+m_2}}----2

divide 1 and 2

3=\sqrt{\frac{m_1+m_2}{m_1}}

squaring

9=1+\frac{m_2}{m_1}

\frac{m_2}{m_1}=8

   

8 0
3 years ago
Suppose we replace both hover pucks with pucks that are the same size as the originals but twice as massive. Otherwise, we keep
andrey2020 [161]

Answer:

w = w₀ / 2    the angular velocity is half the initial value.

Explanation:

We can analyze this exercise as if we added another disk to obtain a disk with twice the mass, for which if the system is two disks, the angular tidal wave is conserved

initial instant.

          L₀ = I₀ w₀

final moment

          L_f = I w

the moment is preserved

          L₀ = L_f

          I₀ w₀ = I w

the moment of inertia of a disk is

         I = ½ m R²

we substitute

          ½ m R² w₀ = ½ (2m) R² w

          w = w₀ / 2

for the case of a disk with twice the mass, the angular velocity is half the initial value.

4 0
3 years ago
What is the formula of kinetics?​
snow_lady [41]

Answer:

KE = 1/2 mv v^{2}

Explanation:

Sorry if this didn't helped you.

4 0
3 years ago
Other questions:
  • Two wires are stretched between two fixed supports and have the same length. One wire A there is a second-harmonic standing wave
    7·1 answer
  • Mechanical waves require a medium to transfer their energy. What are examples of mechanical waves
    14·2 answers
  • Match the author to their work. A Erwin Schrödinger B Albert Einstein C Niels Bohr D Max Plank E Louis de Broglie Developed the
    13·1 answer
  • Do y’all know the answers to them all the choices are at the drop down box.!!!
    6·2 answers
  • A wave has a wavelength of 5 meters and a frequency of 3 hertz. What is the speed of the wave?
    12·1 answer
  • A wheel of diameter 40.0 cm starts from rest and rotates with a constant angular acceleration of 3.00 rad/s^2. At the instant th
    6·1 answer
  • Which of the following would produce a star with the longest lifespan
    9·1 answer
  • Fill in the blank. When using a wrench if you double the length of the wrench (effort arm), you have ______ the required force t
    11·1 answer
  • Two difference between thrust and upthrust .
    8·1 answer
  • What is a Homonym for a type of cloak?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!