Sound travels fastest in _____.

Answers

Answer 1

Answer:

Answer:

Sound travels fastest in solids

Explanation:

Sound is a type of mechanical waves. Mechanical waves are produced by the oscillations of the particles in the medium the wave is travelling through.

The speed of a mechanical wave depends on the density of the medium: the higher the density, the higher the speed. This is because in a medium with higher density, atoms/molecules are closer together, so they collide more frequently and therefore the wave can be transmitted faster and more efficiently.

Since solids have higher density than liquids and gases, this also means that mechanical waves (so, sound as well) travel faster in solids than liquids or gases.

Answer 2

Answer: Sound travels fastest in solids,than liquids, and faster in liquids, than in gases.

Related Questions

Calculate the accleration of a 25-Kg object that moved with force of 300 N
Atoms have no electric charge because theyA. Have an equal number of charged and non charged particles.B. Have neutrons in their nuclei.C. Have an equal number of electrons and protons D. Have an equal number of neutrons and protons
How do streams flow?
Streams of electrically charged particles flowing at high speeds from the sun make up the
What makes an inductor/capacitor different from other passive circuit elements? a) Inductors store energy in a magnetic field, while capacitors store energy in an electric field. b) Inductors resist changes in current, while capacitors resist changes in voltage. c) Inductors are used in AC circuits, while capacitors are used in DC circuits. d) Inductors are always connected in series, while capacitors are always connected in parallel.

As a diligent physics student, you carry out physics experiments at every opportunity. At this opportunity, you carry a 1.05 m 1.05 m long rod as you jog at 3.27 m/s 3.27 m/s , holding the rod perpendicular to your direction of motion. What is the strength of the magnetic field that is perpendicular to both the rod and your direction of motion and that induces an EMF of 0.275 mV 0.275 mV across the rod? Express the answer in milliteslas.

Answers

Answer:

The strength of the magnetic field is 0.08 mT

Explanation:

Given:

Length of rod $l = 1.05$ m

Velocity of rod $v = 3.27$ $(m)/(s)$

Induced emf $\epsilon = 0.275 * 10^(-3)$ V

According to the faraday's law

We know that the induced emf of rod is given by,

$\epsilon = Blv$

Where $B =$ magnetic field

For finding the magnetic field,

$B = (\epsilon )/(lv)$

$B = (0.275 * 10^(-3) )/(1.05 * 3.27)$

$B = 0.08 * 10^(-3)$

$B = 0.08$ mT

Therefore, the strength of the magnetic field is 0.08 mT

Temperature and silica content determine the of magma.

Answers

I think the correct answer is that they can determine the viscosity of the magma. The viscosity of a magma is largely controlled by the temperature, composition and the gas content. Also, silica content can define a magma type. It is said that higher silica content magma has a higher viscosity than those with lower silica content.

A force is applied to a 30-kg object, resulting in an acceleration of 15 m/s. What is the force being applied to the object?

Answers

The sum of all forces applied to the object = (mass) x (acceleration)

The sum of all forces applied to the object = (30) x (15)

= 450 newtons, in the direction of the acceleration.

From Second Newton's Law:

F=a*m
a= $15 (m)/( s^(2) )$
m=30kg

F= $15 (m)/( s^(2) )$ *30kg=450N

A ping pong ball rolls off a 5.Om high table and lands on the floor, 3.0maway from the table. How long is the ball in the air?

Answers

Answer:

The ball was 1.01 seconds in the air

Explanation:

Horizontal Motion

When an object is thrown horizontally with a speed v from a height h, the range or maximum horizontal distance traveled by the object can be calculated as follows:

$\displaystyle d=v\cdot\sqrt{\frac {2h}{g}}$

If we know the value of d and h, we can solve the equation for v:

$\displaystyle v=d\cdot\sqrt{\frac {g}{2h}}$

Since the horizontal speed is constant, we can calculate the time the ball was in the air by using the equation:

$\displaystyle t=(d)/(v)$

The ping pong ball rolls from a height of h=5 m and lands on the floor a distance of d= 3 m away from the table. Calculate the speed:

$\displaystyle v=3\cdot\sqrt{\frac {9.8}{2\cdot 5}}$

$\displaystyle v=3\cdot\sqrt{\frac {9.8}{10}}$

Calculating:

$v=2.97\ m/s$

Now calculate the time:

$\displaystyle t=(3)/(2.97)$

$t=1.01\ sec$

The ball was 1.01 seconds in the air

Note: The time does not depend on the distance d at all. If we borrow the equation from free-fall motion, the time can be calculated with:

$\displaystyle t=\sqrt{\frac {2h}{g}}=\sqrt{\frac {10}{9.8}}=1.01\ sec$

In 1911, Ernest Rutherford and his assistants Geiger and Marsden conducted an experiment in which they scattered alpha particles (nuclei of helium atoms) from thin sheets of gold. An alpha particle, having charge 2e and mass 6.64 10-27 kg, is a product of certain radioactive decays. The results of the experiment led Rutherford to the idea that most of an atom's mass is in a very small nucleus, with electrons in orbit around it. Assume an alpha particle, initially very far from a stationary gold nucleus, is fired with a velocity of 1.50 107 m/s directly toward the nucleus (charge 79e). What is the smallest distance between the alpha particle and the nucleus before the alpha particle reverses direction?

Answers

Answer:

Explanation:

We shall apply conservation of mechanical energy

kinetic energy of alpha particle is converted into electric potential energy.

1/2 mv² = k q₁q₂/d , d is closest distance

d = 2kq₁q₂ / mv²

= 2 x 9 x 10⁹ x 79e x 2e / 4mv²

= 1422 x2x (1.6 x 10⁻¹⁹)² x 10⁹ /4x 1.67 x 10⁻²⁷ x (1.5 x 10⁷)²

= 3640.32 x 10⁻²⁹ /2x 3.7575 x 10⁻¹³

= 484.4 x 10⁻¹⁶

=48.4 x 10⁻¹⁵ m

What is the function of law

Answers

There are many functions and purposes of law, but here are some of the most important ones:
establishing standards, maintaining order, resolving disputes, and protecting liberties and rights.

Other Questions

The Coriolis effect is the result of which of the following? A. winds spinning off the equator B. the rotation of the earth on its axis C. the different air movements north and south of the equator D. the friction that slows down winds near the earth’s surface

Which of the following describes the measure of current? a. The quality of the charge flow b.The rate at which charge flows c. The ability for something to have a charge flow d.The potential for a charge to flow

The big bang theory is one of the most accepted theories on the origin of the universe because of scientific evidence, such as _____.

What kind of friction exists between solid objects moving in water?