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
damaskus [11]
3 years ago
14

How does the speed of waves vary in different media? Radio waves are used to transmit verbal messages through space. Sound waves

are transferred by the compression of particles. The closer the particles are to one another, the faster the energy is transferred. I hear the train coming! I will hear the train through the air before I feel the vibration in the tracks. As a wave travels into a medium in which its speed increases, its wavelength would stay the same. The denser the medium, the slower the speed of a light wave.
Physics
1 answer:
ser-zykov [4K]3 years ago
8 0
Its the first one, second one, and last one.
You might be interested in
Earth's gravitational force just got three times stronger! What happens to your weight?
kicyunya [14]

Your "weight" is the name you give to that gravitational force.
So your question actually says:

           "Your weight just got three times stronger !
             What happens to your weight ?"

8 0
3 years ago
All of the following equations are statements of the ideal gas law except
elena55 [62]

Answer:

a. P = nRTV

Explanation:

The question is incomplete. Here is the complete question.

"All of the following equations are statements of the ideal gas law except a. P = nRTV b. PV/T = nR c. P/n = RT/v d. R = PV/nT"

Ideal gas equation is an equation that describes the nature of an ideal gas. The molecule of an ideal gas moves at a particular velocity depending on the temperature. This gases collides with one another elastically. The collision that an ideal gas experience is a perfectly elastic collision.

The ideal gas equation is expressed as shown:

PV = nRT where:

P is the pressure of the gas

V is the volume

n is the number of moles

R is the ideal gas constant

T is the temperature.

Based on the formula given for an ideal gas, it can be inferred that the equation. P = nRTV is not a statement of an ideal gas equation.

The remaining option will results to an ideal gas equation if they are cross multipled.

7 0
3 years ago
A block of mass 5 kg is descending with a constant velocity on an inclined plane at 30°. What is the value of the frictional for
sattari [20]

Answer:28.9N

Explanation:

F=UR R=mg R=5×10 R=50N

U=tan© U=Tan30 U=1/√(3)

F=UR F=1/√(3) ×50

F=28.9N

4 0
3 years ago
Determine the direction in which an electrical signal is carried in a typical multipolar neuron
choli [55]
The direction in which an electrical signal is carried in a typical multi-polar neuron is:
Dendrites, cell body, axon
Specialized projection of neurons are dendrites and axon. The central part of neuron is cell body. So, the electrical signal is carried in a direction that first dendrites carried the signal then it goes towards cell body and then to axon.
6 0
3 years ago
Is it possible for an object at rest to have forces acting upon it? Explain
daser333 [38]

Answer:

Yeah

Explanation:

I mean, how about gravity for example! When you draw a free-body diagram, you will almost always have to include gravity. How about normal force, or static friction? There are defintely forces at hand.

5 0
3 years ago
Other questions:
  • A swimmer is swimming to the left with a speed of 1.0 m/s when she starts to speed up with constant acceleration. The swimmer re
    9·1 answer
  • A state highway was constructed over wetlands. The state obtained a permit to fill the existing wetlands in accordance with the
    13·1 answer
  • 18)
    11·1 answer
  • Hi, I was wondering why do in real life we refer our weight as for example 54kg instead of 540N? When we know that weight is a f
    5·1 answer
  • 2. How can people know that they've learned?
    5·1 answer
  • Explain what happens when a ferromagnetic material is made into a permanent magnet.
    8·1 answer
  • Describe current in terms of charge and electrons.<br><br>PLEASE HELP I WILL GIVE BRAINLIEST​
    12·2 answers
  • When it is brought near a neutral object, a charged object can _________ a charge in a neutral object.A) induce, B) cancel,C) ne
    7·1 answer
  • A paper airplane has an acceleration of 5 m/s^2. If it is thrown from rest (0 m/s), how fast will it be going in 3 seconds?
    12·1 answer
  • What is the potential energy of a 150 kg diver standing on a diving board that is 10 m high?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!