One of the harmonic frequencies for a particular string under tension is 467.26 Hz. The next higher harmonic frequency is 474.92 Hz. What harmonic frequency is next higher after the harmonic frequency 84.26 Hz?

If the acceleration of gravity is 9.81 m / s², then the speed of the cat when it slid off the table would be 3.61 m /s.

There are three equations of motion given by  Newton,

v = u + at

S = ut + 1/2×a×t²

v² - u² = 2×a×s

As given in the problem if a stuntwoman jumps from a height of 98.5 m into an airbag below. If she struck the airbag at a speed of 40 m/s including the effects of air resistance,

By using the second equation of the motion,

S = ut + 1/2 × a × t²

1.1 = 0 + 0.5 × 9.8 × t²

t² = 1.1 / 4.9

t = 0.47  s

The speed of the cat =  1.7 / 0.47

                                   = 3.61 m /s

Thus, the speed of the cat when it slid off the table would be 3.61 m /s.

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a) To find the speed of the signal in water, we can use the equation:

Speed = Wavelength x Frequency

Where Wavelength is given as 1.5 mm and Frequency is given as 1 x 10^6 Hz.

Speed = 1.5 x 10^-3 m x 10^6 Hz = 1.5 x 10^3 m/s

So the speed of the signal in water is 1.5 x 10^3 m/s

b) To find the period in water, we can use the equation:

Period = 1 / Frequency

Where Frequency is given as 1 x 10^6 Hz

Period = 1 / (1 x 10^6) s = 1 x 10^-6 s = 1 microsecond

So the period of the signal in water is 1 microsecond

c) The speed of sound in air is approximately 343 m/s. Since the frequency of the signal remains constant and the speed of sound in air is different than the speed of sound in water, the wavelength of the signal will also be different. However, since the period is inversely proportional to the frequency and is independent of the medium, the period of the signal in air will be the same as in water, which is 1 microsecond.

Answer:

If the body temperature falls below this temperature then enzymes will work too slowly for body process to occur fast enough the keep the mammal alive.

Explanation:

The lowest energy of electron in an infinite well is 1.2*10^-33J.

To find the answer, we have to know more about the infinite well.

                  \(E_n=\frac{n^2h^2}{8mL^2}\)

                \(m=9.1*10^{-31}kg\\L=0.050*10^{-3}m\\h=6.63*10^{-34}Js\\n=1\)

                \(E_1=\frac{(6.63*10^{-34})^2}{8*9.1*10^{-31}*(0.050*10^{-3})}=1.2*10^{-33}J\)

Thus, we can conclude that, the lowest energy of electron in an infinite well is 1.2*10^-33J.

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When light travels in a certain medium and falls on the surface of another medium a part of it turns back in the same medium This phenomenon is called Reflection.

A wavefront may alter its course at an interface between two different media and return to the first medium, a phenomenon known as reflection. Common examples are the reflection of light, sound, and water waves.

Reflection of light refers to the occurrence where light strikes an item and bounces back off its surface. Examples: using a flat mirror to reflect. by a spherical mirror's reflection. There are essentially two types of reflection that apply to light. While diffuse reflection is caused by rough surfaces that tend to reflect light in all directions, specular reflection is described as light reflected off a smooth surface at a specific angle.

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Answer:

Answer in Observational evidence (b)

The evidence needed to formulate a hypothesis is observational evidence. From keen observations, we are formulating a scientific hypothesis.

Hypothesis is a plausible scientific statement which predicts a process or result of an experiment based on observations. Hypothesis can be made from well established scientific records also.

Some are formulating hypothesis based on some intuitions, while some others are formulated based on inductions or  deductions. An experiment starts from a clear cut hypothesis.

A hypothesis must be testable, falsifiable. A scientific hypothesis must be based on a strict observation and for a considerable time and the observations must support for the statement derived for the solution.

Hence, the evidence is needed for a or a hypothesis to be supported or not supported is observational evidence.

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The astronomer on duty going to have a bit of a problem satisfying her request after a white dwarf cools off it turns too bloodless and darkish to emit visible light.

According to astronomers, The fate of the left-over center relies upon its mass. If the left-over middle is about 1. four to 5 instances the mass of our solar, it'll crumble right into a neutron big name. If the middle is bigger, it's going to crumble right into a black hollow.

The growth and contraction of pulsating variables may be measured with the aid of using the Doppler effect. The traces inside the spectrum shift in the direction of the blue because the floor of the megastar moves in the direction of us after which shifts to pink as the floor shrinks again. Gold is uncommon in the course of the Universe as it's a tremendously hefty atom, such as seventy-nine protons and 118 neutrons.

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Answer:

The best explanation is that the first person is grounded to the earth, and his/her body either draws up negative charges from the earth, or tend to conducts negative charges to the earth, depending on the charge on the balloon.

Explanation:

The earth is an infinite store for charges. In the first case where the second person brings a negatively charged balloon towards the first person, the negative charges on the balloon induces the first person's body to tend to attract the negative charges on the balloon through the first person's body to the positive charges within the earth. In the second case when again a positively charged balloon is brought near the first person's hair, the positive charges on the balloon induce the first person's body into drawing up negative charges from within the earth. This charges, and their opposite induced charges, create an attractive force between the hair strands and the balloons.

According to the given statement Therefore, as the wavelength of a wave decreased, its frequency increased.

The colour of light is defined by its wavelength, and the frequency of sound is controlled by its wavelength. The visual spectrum of light has wavelengths between about 700 nm (red) to 400 nm (violet). The span of acoustic signal frequencies is roughly 17 mm to 17 m.

By measuring the distance between any two identical locations on adjacent waves, the wavelength can always be found. When determining the wavelength of a longitudinal wave, the distance from one compression to the next or from one rarefaction to the next is measured.

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The gravitational force of Earth on the satellite, given that the satellite is launched into orbit 30000 km above sea level is 1.63×10³ N

The gravitaional force between two objects can be obtained by using the following formula:

F = GM₁M₂ / r²

Where

The following data were obtained from he question:

The gravitaional force can be obtained as shown below:

F = GM₁M₂ / r²

F = (6.673×10¯¹¹ × 5.4×10³ × 6.0×10²⁴) / (36400000)²

F = 1.63×10³ N

Thus, the gravitational force is 1.63×10³ N

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Answer: Acceleration is 0.25m/s^2

Explanation:

Answer:

Ionic.

Explanation:

To know the the correct answer to the question given above, let us define the terms covalent and ionic.

Covalent is the term used to characterise a compound which is formed by sharing of electrons between the atoms involved. Thus, the compound formed is called covalent compound.

Ionic is the term used to characterise a compound formed when there is a transfer of electron(s) from the metallic atom to the non-metallic atom. The compound formed is called ionic compound.

Considering the question given above, since the calcium atom transfer electron(s) to the carbon atom, it means the compound is an ionic compound.

In many applications, it is essential to regulate or step down voltage levels for safe and efficient operation of electronic components within the circuit.

a. True. Real circuits often use voltage regulators to reduce a voltage to a smaller value, which is necessary for proper functioning of many electronic components. The statement "Real circuits frequently have a need to reduce a voltage to a smaller value" is True. In many applications, it is essential to regulate or step down voltage levels for safe and efficient operation of electronic components within the circuit. The statement "Real circuits frequently have a need to reduce a voltage to a smaller value" is True.

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Acid rain is the result of pollutants being released into the air

Acid rain is defined as rain or any other type of precipitation that is unusually acidic, which means it contains a lot of hydrogen ions. Acid rain has a pH level that is lower than this and typically ranges from 4-5. Most water, including drinking water, has a neutral pH that exists between 6.5 and 8.5.

When gases like sulphur dioxide and nitrogen oxides are released into the atmosphere, a chemical reaction takes place that eventually results in acid rain. These substances have the capacity to ascend to extremely high altitudes in the atmosphere, where they combine and interact with oxygen, water, and other chemicals to create acid rain, a type of ozone-depleting haze.

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The brightness of bulb A will not be affected, but the brightness of bulbs B and D will become brighter.

In the given circuit, the bulbs B, C, and D are connected in series, whereas bulb A is connected in parallel.

All parts of a series circuit are wired together end to end to create a single path for current flow.

A series circuit of incandescent bulbs would have reduced brightness and increased life when a bulb is added. When a bulb is removed from the series combination, the brightness of the other bulbs will increase. Each bulb acts as a resistor reducing the current through each bulb. In a series circuit, when one bulb burns out, it acts as an open switch, and all bulbs go out.

The given question is incomplete as there is no given circuit diagram.

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To construct an open rectangular box with maximum volume, the dimensions should be such that the length, width, and height are equal.

To find the dimensions that result in a box of maximum volume, we need to consider the relationship between the dimensions and the volume of the box. Let's assume the length of the box is L, the width is W, and the height is H. Since the box is open, it does not have a top surface.

The volume of a rectangular box is given by the formula V = L * W * H. However, in this case, we have a constraint that the material used to construct the box has a fixed amount, so the total surface area of the box must be constant. The surface area of an open rectangular box is given by A = 2LW + LH + WH.

To find the dimensions that maximize the volume, we need to find the critical points of the volume function. By applying the constraint of constant surface area, we can express one of the dimensions in terms of the other two using the surface area formula. Substituting this expression into the volume formula, we obtain a function that depends on two variables. Taking the derivative of this function and setting it to zero, we can solve for the critical points.

By solving the equations, we find that the dimensions resulting in a box of maximum volume are when the length, width, and height are all equal. In other words, the box is a cube. This is because a cube maximizes the volume within the given constraints, as any deviation from equal dimensions would result in a smaller volume.

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Answer:

https://brainly.com/question/24997963 this will help you. You need to sq rt the added values then divide a+b by the square value. Keeping anything thats negative negative if negative is answer and set to = cos theta. then convert from cos theta = 1 cos will = 0. But if cos theta = decimal then ensure its positive number and that's your answer. Formula a+b/ sqrt a+b

Explanation:

Answer:

5,760

Explanation:

1 minute is equal to 60 seconds. so you will multiply 60 times 96. and that equals 5,760

Answer:

The "distance" is the answer to the question,

Explanation:

Answer:

792J

Explanation:

Use the formula Force × Distance

With 110 newtons being the force and 7.2 meters being the distance

Which gives 792 and work us measured in joules therefore its joules

Work done is the dot product of force and displacement. The work done on the box to push across the surface for 7.2 m by applying a force of 110 N is 792 J.

Force is an external agent acting on a body tp change it from the state of motion or rest.  Force is a vector quantity thus, it is characterized by a magnitude and direction.

When force acting on a body results in displacement of the body, it is said to be work done on the body. The work done on the body is the product of force and displacement.

W = F d.

Given the force acting on the box = 110 N

 displacement d = 7.2 m

Work done w = 110 N × 7.2 m

                       = 792 J.

Therefore, the work done on the box is 792 J.

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Greater in size than that of the second star is the first star. If Chaya looks at the information for two stars. They are both the same hue, yet the first star is brighter overall than the second.

A star's absolute magnitude, M, is the magnitude it would have if it were situated 10 parsecs away from Earth. Astronomers might compare the true (intrinsic) brightness of various stars by taking into account stars at a given distance.

More powerful (or greater wattage) stars will glow brighter than less powerful ones (lower wattage). Nevertheless, that because a star appears brighter doesn't always imply it is. The brilliance of a star is also influenced by how close to us it is. An thing seems darker the further it is away.

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The basic function of a transformer is to convert one level of electrical voltage or current to another level. Therefore, the correct answer is C, low voltage to high or vice versa.

Transformers are used extensively in electrical power systems to step up the voltage for transmission and step down the voltage for distribution. They operate on the principle of electromagnetic induction and have no moving parts, making them highly efficient and reliable. Transformers can be found in many applications such as power supplies, audio systems, and medical equipment. They play a critical role in modern technology by allowing the efficient transmission and distribution of electricity.
The basic function of a transformer is involved in the conversion process C: low voltage to high voltage or vice versa. Transformers are crucial in power transmission and distribution systems, as they are used to step up or step down voltage levels according to the requirements, allowing efficient transfer of electrical energy. It's important to note that transformers only work with alternating current (AC) and do not convert mechanical energy to electrical, electrical energy to mechanical, or alternating current to direct current.

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Answer:That only applies to highly polished surfaces, eg mirrors.

If you take a high quality laser (ie with low divergence) and aim it at a wall, you can see the spot where the laser beam reaches the wall from anywhere with a direct line-of-sight to the spot where the laser beam reaches the wall. This due to micro imperfections on the surface of the wall. At a microscopic level, the wall surface is very rough and pointing in all directions.

As to why, a beam of light bounces of a highly polished surface, I can only surmise that it is essentially due to kinematics, ie the only force opposing the light beam is normal to the surface, hence there no forces along the reflective surface. Since there are no forces along the reflective surface, the speed component of light along the reflective surface remains unchanged. However, on the plane perpendicular to the reflective surface the, the light photons bounce off at the same speed at which the hit the reflective surface because the mass of the reflective surface is much much much larger than the mass of the photons, which means that the reflective surface won’t move at all. Since conservation of momentum requires that momentum after the collision be the same as the momentum before the collision then the only way for that to happen is if the velocity of the photon perpendicular to the reflective surface is of exactly the same magnitude but in the opposite direction. Vector resolution of the speed component of the reflected beam means that the angle of reflection must be the same as the angle of incidence.

Explanation:

When calculating work done by forces, the work of an internal force does not have to be considered because internal forces act in equal but opposite collinear pairs.

Internal forces are forces that act between different parts of the same object or system. These forces can cause deformation or changes in the shape of the object, but they do not contribute to the net work done on the object as a whole. This is because internal forces occur in equal but opposite pairs, meaning that the work done by one internal force is canceled out by the work done by its counterpart. As a result, when calculating the work done by external forces on an object or system, the work of internal forces is not considered since they do not contribute to the overall net work. The focus is on the external forces that interact with the object or system from its surroundings. Therefore, option B) the forces act in equal but opposite collinear pairs is the correct explanation for why the work of internal forces does not have to be considered.

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The first equivalence point, the pH is 0.154, and at the second equivalence point, the pH is also 0.154.

The pb values for the dibasic base b indicate the pH at two different points in the titration process. pb1=2.10 corresponds to the first equivalence point, while pb2=7.65 corresponds to the second equivalence point. To calculate the pH at each of these points, we need to understand the titration process.

In this case, we are titrating a 0.70 M(aq) solution of base b with 0.70 M HCl(aq). The base b is dibasic, which means it can accept two protons (H+) per molecule. The HCl is a strong acid, so it will dissociate completely in water, releasing H+ ions.

At the first equivalence point, the number of moles of base b is equal to the number of moles of H+ ions. This means that half of the base has been neutralized. To calculate the pH at this point, we can use the equation pH = -log[H+]. Since the concentration of H+ ions is 0.70 M, the pH at the first equivalence point is -log(0.70) = 0.154.

At the second equivalence point, all of the base has been neutralized. This means that the concentration of H+ ions is determined solely by the HCl solution. Again, we can use the equation pH = -log[H+]. Since the concentration of H+ ions is still 0.70 M, the pH at the second equivalence point is -log(0.70) = 0.154.

In summary, at the first equivalence point, the pH is 0.154, and at the second equivalence point, the pH is also 0.154.

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The amount of magnetic energy he amount of magnetic energy stored in a solenoid depends on  in a solenoid depends on its dimensions and the strength of the magnetic field within it.

To calculate it, we need additional information such as the number of turns in the solenoid, the current flowing through it, and its inductance. Without these details, it's not possible to provide an exact value. However, the magnetic energy in a solenoid is generally given by the formula: U = (1/2) * L * I^2, where U is the magnetic energy, L is the inductance, and I is the current.

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Answer:

D

Explanation:

i did that yesterday and your welcome homie b

Answer:

head of water or mouth

Explanation:

Answer:

The beginning of a river is called the source.

Explanation:

I got this correct on oddyseyware

Answer:

the catcher and outfielder

Explanation:

Answer: The catcher and the player at first base are the only players permitted to wear mitts rather than gloves. So, the answer would be 3.

Explanation: I had this on a quiz and got it right.

Hope this helps!