a tube open at both ends has a fundamental frequency of 400 hz. what is the 2nd lowest standing wave frequency possible when one side o the tube is sealed?

Answer:

Group 18

Explanation:

Answer:

gold

Explanation:

gold is shinny and solid can conduct ele tricity ,maleabl

The given statement "swinging a tennis racket against a ball is an example of a third-class lever" is TRUE.

A third-class lever is a class of lever where the input force is located between the fulcrum and the load. The fulcrum is the pivot point of the lever. The load is the weight or resistance that is being moved, lifted, or carried.The following are some examples of third-class levers: Sweeping with a broom. Tennis racket. Field hockey stick. Butter knife, etc. Thus, we can say that swinging a tennis racket against a ball is an example of a third-class lever.

To know more about tennis racket visit:

https://brainly.com/question/11490587

#SPJ11

The new pressure of the gas is 2.5 p. The correct answer is option c.

According to Boyle's law "the pressure and volume of a gas are inversely proportional if the temperature is constant".

Therefore, from the above definition we can use the formula

P1V1 = P2V2,

Here P1 is the initial pressure,

V1 is the initial volume,

P2 is the final pressure, and

V2 is the final volume.

In this question,

the initial pressure is P,

the initial volume is \(50 cm^3\),

the final volume is \(20 cm^3\), and

Now we want to find the final pressure P2.

Therefore, we can simply write:

P × 50 = P2 × 20

Solving for P2, we will get:

P2 = P × (50/20) = 2.5 P

Therefore, the answer is (C) 2.5 P.

To know more about pressure refer to-

https://brainly.com/question/31525061

The density distributions (i) and (ii) can be sketched as functions of x for different times, providing insights into their behavior over time.

The flux of material (q) past any point x at any time t can be determined by multiplying the density gradient (∂rho/∂x) with the diffusion coefficient µ. This represents the flow of material per unit area perpendicular to the x-axis, indicating the rate of material transport.

To sketch the density distributions (i) and (ii), we can plot the density values as a function of x for various time values. For distribution (i), the density decreases with increasing distance from the origin, forming a bell-shaped curve that decreases over time.

The rate of decrease depends on the diffusion coefficient µ. For distribution (ii), the density linearly decreases with increasing distance from the origin and remains constant over time. These sketches provide visual representations of how the density of the material changes spatially and temporally.

To verify that the density distributions satisfy the diffusion equation, we need to compare the equations with the given distribution forms.

By taking the partial derivative of density with respect to time (∂rho/∂t) and the second partial derivative of density with respect to x (∂²rho/∂x²), we can confirm whether they are proportional to each other with a factor of µ. If the resulting equations match, it indicates that the distributions satisfy the diffusion equation.

The flux of material (q) past any point x at any time t is determined by multiplying the density gradient (∂rho/∂x) with the diffusion coefficient µ. This represents the rate at which material is flowing through a specific point in the x-direction.

It provides information about the amount of material passing through a given area per unit time, highlighting the transport properties of the material.

Learn more about density

brainly.com/question/15164682

#SPJ11

Answer:

The kinetic energy is 1200 J

Explanation:

The Principle of Conservation of energy states that "energy is neither created nor destroyed, it is transformed".

This means that energy can be transformed from one form to another, but the total amount of energy always remains constant, that is, the total energy is the same before and after each transformation.

The mechanical energy of a body or a physical system is the sum of its kinetic energy and the potential energy. According to the Principle of Conservation of Energy for mechanical energy, the total mechanical energy that a body possesses is constant at every instant of time.

Since mechanical energy is equal to the sum of kinetic energy and gravitational potential energy that a body possesses, the only way to stay constant is that:

Due to the Principle of Conservation of Energy you can say that the gravitational potential energy is converted to kinetic energy.  So Gravitational potential energy at the top = kinetic energy at the bottom

The kinetic energy is 1200 J

Answer:

Media literacy creates a conscious awareness, the ability to understand, analyze, the messages various media like the newspapers, the radio, that is for the consumer, and it also promotes how best media create information for production.

While information literacy and technology literacy differs from other literacy asked in the question above, as information literacy and technology could be used when describing getting information through adequate research and further dishing out this available information so as to effectively use the information with the aim to solve problems, create awareness, or educate, through technologies such as for example, email.

Lastly, media and information literacy differ in terms of use from the other two explained above, as media and information literacy describes discerning information credibility, accuracy, and objectivity of sources they come from, and it shows people how important it is to have credible information to make informed judgments and the ethical use of the information they consume.

In a monopoly, the firm has the ability to set the price for its product in the market. The point where a monopoly will set its price depends on various factors, including the demand for the product, the firm's costs, and its profit-maximizing objective.

To determine the price, a monopoly will typically aim to maximize its profits. This means setting the price at a level where the marginal revenue (MR) equals the marginal cost (MC). Marginal revenue represents the additional revenue generated by selling one additional unit of the product, while marginal cost represents the additional cost incurred to produce one additional unit.

In a monopoly, the marginal revenue curve is downward sloping because the firm must lower the price to sell more units. The marginal cost curve, on the other hand, typically slopes upward as production increases due to diminishing returns.

The monopoly will set the price at the point where MR = MC. This is because at this price level, the additional revenue generated from selling one more unit is equal to the additional cost of producing that unit. By setting the price in this way, the monopoly can maximize its profits.

It's important to note that monopolies have market power and can charge prices higher than the marginal cost, leading to higher profits but potentially reduced consumer surplus and market efficiency.

To know more about Revenue visit-

brainly.com/question/14293132

#SPJ11

Answer: Chemical energy is the energy stored in bonds that is released when chemical reactions occur.

The graph of the relationship between amplitude and decibel level of sound is not a linear graph but a logarithmic graph.

It is known as the Sound Intensity Level graph, where the amplitude of the sound is plotted on the x-axis, and the decibel level of sound is plotted on the y-axis.

As the amplitude of the sound increases, the decibel level increases as well. The relationship is not directly proportional, as a small change in amplitude can result in a significant change in decibel level. For example, a sound with an amplitude of 1 Pa has a decibel level of 0 dB, whereas a sound with an amplitude of 10 Pa has a decibel level of 20 dB. This indicates that the decibel level is increasing exponentially with the increase in amplitude.

Moreover, the graph shows that the human ear has a limited range of hearing, which is between 0 dB and 140 dB. Beyond this range, sounds become too loud to hear or can cause damage to the ear. Therefore, it is important to monitor the decibel level of sound to protect our hearing.

Learn more about amplitude here:

https://brainly.com/question/8662436

#SPJ11

Answer:

If you haven’t read about the shark found swimming in and out of a segment of an undersea volcano, then you really need to get up to date.

Explanation:

Explanation:

Sound travels from the tour guide to the other of the canyon and then back, thus hearing the echo. The time of 2.0 s represents the time it takes the sound to make a round trip, therefore it takes 1.0 s for the tour guide's voice to reach the other side of the canyon. At 20°C, the speed of sound is 343 m/s therefore the width of the canyon is

\(x = vt = (343\:m/s)(1.0\:s) = 343\:m\)

The canyon in the given question is 340 m wide.

Echo is a reflection of sound that comes to the listener after the direct sound, but with a delay. The delay is inversely proportional to the separation between the source and the listener of the reflecting surface.

To hear the echo, the following conditions must be met:

There must be a minimum of 17 meters between the sound source and the reflecting surface, and there must be at least 0.1 seconds between the original sound and its echo.

Given parameters:

When a tour guide shouts across a canyon, her echo is heard 2.00 s later. That means, in two seconds the sound goes to other wall of canyon and reflected back.

At a temperature of 20 °C, velocity of sound is 340 m/s.

So, the wide is the canyon be = velocity of sound × time/2

= 340 m/s ×2 s/2s = 340 m.

Hence, the wide is the canyon be 340 m.

Learn more about echo here:

https://brainly.com/question/26833784

#SPJ2

The electromagnetic spectrum organizes electromagnetic waves based on their Frequency and Wavelength.

The range of all EM radiation types is referred to as the electromagnetic (EM) spectrum. The visible light from a bulb in your home and radio waves from a radio station are two such examples of electromagnetic radiation. Radiation is energy that moves and propagates as it does.

The electromagnetic spectrum is a collection of waves with shared qualities to electromagnetic waves. All electromagnetic waves are transverse waves, able to move through a vacuum, and travelling at exactly the same speed in a vacuum, which would be 300,000,000 times the speed of light.

Learn more about electromagnetic waves here:

brainly.com/question/1397850

#SPJ4

Answer:

The mineral's hardness is greater than 4 but less than 5.5 on the Mohs hardness scale.

The magnitude of the vector with components -14.0 units in the x-direction and 5 units in the y-direction can be calculated using the Pythagorean theorem.

The magnitude of a vector represents its length or size. In the xy plane, the magnitude of a vector with components in the x-direction (horizontal) and y-direction (vertical) can be found using the Pythagorean theorem. The theorem states that the square of the magnitude of a vector is equal to the sum of the squares of its components.

For the given vector with components -14.0 units in the x-direction and 5 units in the y-direction, we can calculate its magnitude as follows:

Magnitude = sqrt(\(14^{2} } +5^{2}\))

Magnitude = sqrt(196 + 25)

Magnitude = sqrt(221)

Magnitude ≈ 14.87 units

Therefore, the magnitude of the vector is approximately 14.87 units. This represents the length or size of the vector in the xy plane, taking into account its components in the x and y directions.

Learn more about vectors here: https://brainly.com/question/30122065

#SPJ11

Answer:

hi my Friend

check in this link https://youtu.be/ErFP7VmNbGk

Explanation:

Answer:

or...

You can choose the definition you like.

Hope this helps :)

Answer:

The tendency of a body at rest to stay at rest or of a body in motion to remain in motion .

Explanation:

Inertia is the tendency of objects to remain in motion or to stay at rest unless acted upon by an outside force.

The dimensions of the original rectangle are 18 units by 9 units.

Let the width of the original rectangle be w.

Since the length is twice the width, the length is 2w.

The new length is 2w + 5, and the new width is w - 3.

The new perimeter is 52, so:

2(2w + 5) + 2(w - 3) = 525w + 4 + 2w - 6

                                = 52

Simplifying and solving for w:

7w - 2 = 52w

          = 9

The width of the original rectangle is 9 units.

Since the length is twice the width, the length is 2(9) = 18 units.

Learn more about perimeter from :

https://brainly.com/question/1616151

#SPJ11

Answer:

a) true

Explanation:

True, the depth of the troposphere over Ecuatorian regions is about 18 kilometers and 17 kilometers in the middle latitudes, whereas it is just 6 kilometers over the polar regions.  

Answer:

To the Left

Explanation:

Answer:

A is red

B is violet

Explanation:

A has a high penetration power hence greatest frequency and short wavelength in accordance to the diagram above.

The color with greatest frequency is red.

B has the least penetration power as it is greatly refracted in accordance to the diagram which shows that it has least frequency and high wavelength.

The color of least frequency is violet.

Answer:

The answer for this question is

D

The distance to the Andromeda Galaxy was measured by Edwin Hubble in the 1920s.

Hubble utilized the observations of Cepheid variable stars, which have a known relationship between their period of variability and their intrinsic brightness. By comparing the apparent brightness of these stars in Andromeda to their known intrinsic brightness, Hubble was able to estimate the distance to Andromeda.

His measurements revealed that Andromeda was much farther away than previously thought, at a distance of over a million light-years. This groundbreaking finding revolutionized our understanding of the cosmos, demonstrating that Andromeda was not a mere nebula within our own galaxy but a separate galaxy in its own right.

Hubble's work laid the foundation for the concept of an expanding universe and paved the way for future advancements in our knowledge of the cosmos.

To know more about the Andromeda Galaxy refer here :

https://brainly.com/question/31882371#

#SPJ11

The impulse-momentum relationship is directly related to Newton's second law. Newton's second law states that the force acting on an object is equal to its mass multiplied by its acceleration (f=ma). The impulse-momentum relationship tells us that an object is equal to the force applied to it multiplied by the time it was applied (Δp=Ft).

we get F=Δp/Δt, which is the same as f=ma=mΔv/Δt. Therefore, the impulse-momentum relationship is a direct consequence of Newton's second law. relationship between impulse-momentum and Newton's Second Law. The impulse-momentum relationship is directly related to Newton's Second Law, which states that the force acting on an object is equal to the mass of the object multiplied by its acceleration (F = ma).

Impulse is defined as the change in momentum of an object, and it is calculated as the product of force and the time interval over which the force is applied (Impulse = Ft). Momentum, We can start by rewriting Newton's Second Law using the formula for acceleration (a = Δv/Δt), where Δv is the change in velocity and Δt is the change in time. This gives us:
F = m(Δv/Δt)
Next, multiply both sides by Δt:
FΔt = mΔv
This equation now represents the impulse-momentum relationship:
Impulse (FΔt) = change in momentum (mΔv)

So, the impulse-momentum relationship is directly related to Newton's Second Law, as it demonstrates that the impulse applied to an object is equal to the change in its momentum.

To know more about Newton's second law:- https://brainly.com/question/13447525

#SPJ11

The plantaris works by flexing the knee and ankle joints sporadically. about the foot's position, the central nervous system.

There are numerous ways in which the plantaris tendon might hurt. First, when the plantaris tendon is overworked or overloaded, it might experience tendonitis or tendinopathy. Second, it's hypothesized that the plantaris can chafe and compress on the Achilles tendon, injuring it.

Function. The plantaris functions to plantar flex the knee joint and ankle joint sporadically. The central nervous system may receive proprioceptive feedback information about the location of the foot from the plantaris muscle.

To know more about Plantaris visit:

https://brainly.com/question/29610354

#SPJ4

Answer:

The correct option is D

Explanation:

This question can be better understood when discussed using the Newton's first law of motion which states that an object would continue to move with a uniform speed (in a straight line) unless acted upon by an external force. What happens here (in the question) is that the bike rider would have continued moving at a constant speed (to the right) if not for the opposing force of the wind that acted against her (to the left). This wind/force would cause her speed to reduce or slow down (as posited by the law).

When compared to each other, radio waves are produced by the movement of negatively-charged electrons whereas gamma rays are produced in nuclear reactions.

The back-and-forth movement of negatively charged electrons inside an antenna produces radio waves.

Radio waves have the longest wavelengths of all the waves in the electromagnetic spectrum. Radio waves are typically found at frequencies of 300 gigahertz and below.

On the other hand, nuclear explosions, lightning, and radioactive decay generate gamma rays.

Learn more about radio waves and gamma rays at: https://brainly.com/question/1687295

#SPJ1