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
rodikova [14]
3 years ago
5

Through which medium would sound travel the fastest, water, a steel bar, or nitrogen gas explain

Physics
1 answer:
777dan777 [17]3 years ago
3 0
It would travel faster through a steel bar, because sound waves travel by vibrating molecules in a medium. In solids, these molecules are spaced closer together, causing sound to travel faster through it. so that means the second fastest medium is liquid and the slowest is gas
You might be interested in
A spherical shell is rolling without slipping at constant speed on a level floor. What percentage of the shell's total kinetic e
IgorC [24]

Answer:

41.667 per cent of the total kinetic energy is translational kinetic energy.

Explanation:

As the spherical shell is rolling without slipping at constant speed, the system can be considered as conservative due to the absence of non-conservative forces (i.e. drag, friction) and energy equation can be expressed only by the Principle of Energy Conservation, whose total energy is equal to the sum of rotational and translational kinetic energies. That is to say:

E = K_{t} + K_{r}

Where:

E - Total energy, measured in joules.

K_{r} - Rotational kinetic energy, measured in joules.

K_{t} - Translational kinetic energy, measured in joules.

The spherical shell can be considered as a rigid body, since there is no information of any deformation due to the motion. Then, rotational and translational components of kinetic energy are described by the following equations:

Rotational kinetic energy

K_{r} = \frac{1}{2}\cdot I_{g}\cdot \omega^{2}

Translational kinetic energy

K_{t} = \frac{1}{2}\cdot m \cdot R^{2}\cdot \omega^{2}

Where:

I_{g} - Moment of inertia of the spherical shell with respect to its center of mass, measured in kg\cdot m^{2}.

\omega - Angular speed of the spherical shell, measured in radians per second.

R - Radius of the spherical shell, measured in meters.

After replacing each component and simplifying algebraically, the total energy of the spherical shell is equal to:

E = \frac{1}{2}\cdot (I_{g} + m\cdot R^{2})\cdot \omega^{2}

In addition, the moment of inertia of a spherical shell is equal to:

I_{g} = \frac{2}{3}\cdot m\cdot R^{2}

Then, total energy is reduced to this expression:

E = \frac{5}{6}\cdot m \cdot R^{2}\cdot \omega^{2}

The fraction of the total kinetic energy that is translational in percentage is given by the following expression:

\%K_{t} = \frac{K_{t}}{E}\times 100\,\%

\%K_{t} = \frac{\frac{1}{2}\cdot m \cdot R^{2}\cdot \omega^{2} }{\frac{5}{6}\cdot m \cdot R^{2}\cdot \omega^{2} } \times 100\,\%

\%K_{t} = \frac{5}{12}\times 100\,\%

\%K_{t} = 41.667\,\%

41.667 per cent of the total kinetic energy is translational kinetic energy.

7 0
3 years ago
What happen as waves travel and objects in their path move?
Cerrena [4.2K]
Do you mean when objects move as a direct result of the passing wave? Waves have energy and constitute a force, just like wind. Therefore that force is able to move objects in its path.

3 0
3 years ago
You want a special device to keep coffee warm what type of electromagnetic waves would be useful
fredd [130]
Microwaves at the specific frequency where vibrates water molecules

Or

Infrared waves is the other name for heat
8 0
3 years ago
Two capacitors are connected in series and the combination is charged to 120V. There's 90.0V across one capacitor, whose capacit
IgorC [24]

Answer:

0.84μF

Explanation:

Charge is same through both the capacitors since they are in series. Total voltage is the sum of the voltages of the individual capacitors.. So voltage across the 2nd capacitor is 120- 90 =30 V.

Charge across first capacitor is Q = C₁V₁ = 90 x0.28 = 25.2μC

Therefore capacitance of 2nd capacitor =

C₂ = Q÷V₂ = 25.2÷30 = 0.84 μF

                                                     

4 0
3 years ago
Hi can someon help me how to answer this?<br> Btw I'm from Philippines
arlik [135]

Answer:

Test 1

1.True

2.True

3.True

4.False

5.True

6.True

7.False

8.True

9.True

10.True

yung iba nasa pic

4 0
2 years ago
Other questions:
  • Which correctly ranks, from fastest to slowest, the time it will take one wavelength to pass a certain point?
    6·2 answers
  • Interactive LearningWare 8.1 reviews the approach that is necessary for solving problems such as this one. A motorcyclist is tra
    12·1 answer
  • Jesse wants to know how well a particular brand of car wax protects his car from dirt. What is the independent variable ?
    7·1 answer
  • You must raise the weight to a height of 10 meters. You cannot do it! Thinking back to what you have learned in science class, y
    15·2 answers
  • Belly-flop Bernie dives from atop a tall flagpole into a swimming pool below. His potential energy at the top is 7000 J (relativ
    15·1 answer
  • The amount of work done to produce a sound determines which property of sound waves? A. amplitude B. frequency C. pitch D. wavel
    7·2 answers
  • To build muscle you must do what ?
    11·2 answers
  • Compared to a blue star in the same local cluster, the surface temperature of a red star is a) greater. b) the same. c) lower. d
    12·1 answer
  • WILL give brainliest!!!!
    7·1 answer
  • Power is measured in unit of Joules per second or
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!