An instrument used to detect a static electric charge is called.

Answer:

NO

Explanation:

It is just impossible to know if someone is staring at you while they are standing behind you. UNLESS they turned around OR was able to see them though a mirror of some sort. :)

the color you see is The color reflected by the object. Hence option C is correct.

The visual sense of colour or colour is dependent on the electromagnetic spectrum. Colour perception is connected to an object's light absorption, reflection, emission spectra, and interference, even though colour is not an inherent characteristic of matter.

When two distinct media come together at an interface, a wavefront might reverse direction so that it returns to the first medium, which is known as reflection. The reflection of light, sound, and water waves are typical examples.

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Answer:

The gravitational potential energy of a squirrel is 53.312 J.

Explanation:

We have,

Mass of a squirrel is 0.68 kg

It is placed at a height of 8 m above the ground.

It is required to find the gravitational potential energy of a squirrel. It is possessed by an object due to its position. Its formula is given by :

\(E=mgh\\\\E=0.68\times 9.8\times 8\\\\E=53.312\ J\)

So, the gravitational potential energy of a squirrel is 53.312 J.

Answer:

true

Explanation:

Answer: Wave a the first answer is right

Brainliest.

Explanation:

We are given:

Initial velocity (u) = 0 m/s            [starting from rest]

Final velocity (v) = 10 m/s

Acceleration (a) = 2 m/s²

Time taken = t

Solving for time taken:

v = u + at             [first equation of motion]

10 = 0 + (2)(t)       [plugging the values]

10 = 2t

t = 5 seconds

You can arrange a stack of blocks so that the topmost block is not immediately over the table, yes. A stack like this is said to be overhanging.

To create an overhanging stack, the blocks need to be stacked in a way that distributes the weight in such a manner that the center of gravity remains over the lower blocks, even though the uppermost block may be protruding out over the edge. This requires careful consideration of the size, shape, and weight of each block in the stack, as well as the angle at which they are stacked.

One way to create an overhanging stack is by using tapered blocks, which are narrower at the top than they are at the bottom. By stacking these blocks in a slightly tilted position, with the wider bottom of each block positioned over the narrower top of the block below it, it is possible to create a stable overhanging stack.

Another way to create an overhanging stack is by using cantilevered blocks, which are designed to be supported at only one end. These blocks can be positioned so that one end is supported by the stack below, while the other end protrudes out over the edge of the table.

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Answer:

6, 3, 2, 5, 4, 1

Explanation:

Let's describe them from smallest to largest. In fact the size order is not exact as there are exceptions.

An asteroid is a rocky body which lies in the asteroid belt between Mars and Jupiter. They are typically quite small object. The largest asteroid Ceres has been reclassified as a dwarf planet.

A moon is typically a rocky body which is in orbit around a planet. Some moons such as our Moon are quite large and are typically bigger than asteroid. Some moons can actually be smaller than some asteroids.

A planet is a nearly spherical body which is in orbit around the Sun. Planets are larger than moons.

A star is what planets orbit around. It is the source of light and heat. Our Sun is a star which is many times bigger than all of the planets.

A solar system is a star and all of its planets, asteroids, comets and other bodies. It is significantly bigger than a star.

A galaxy, such as our Milky Way Galaxy, is a collection of solar systems orbiting around a central core. Most galaxies have a supermassive black hole at their centres.

Galaxies also form clusters which are large scale structures.

The universe is everything. It contains billions of galaxies.

Answer: That is not a question.

Explanation: It is a random jumble of letters. It also has no question mark.

First, we need to do a type conversion. Because the types of the two given quantities are different. One is in minutes. The other is in hours. A vehicle that travels \(45\) kilometers in an hour travels how many meters in a second?

A vehicle that travels \(12.5\) meters in a second travels how many meters in \(20\) minutes?

Answer:

When molecules, not just rubber molecules, but any molecules, form crystals, they give off heat. This is why the rubber band feels hot when its stretched. When you let go of the rubber band, the polymer molecules break out of those crystals. Whenever molecules break out of crystals, they absorb heat.

Explanation:

When a rubber band is stretched, its polymeric molecules, consisting of chains of many subunits, become elongated and aligned. This stretching process increases the entropy or disorder within the rubber band as it converts potential energy into kinetic energy.

The energy required for this deformation comes from the work done by the person stretching the rubber band.

As the rubber band is stretched repeatedly, the internal molecular friction generates heat. The kinetic energy from the rapid realignment of the polymer chains is converted into thermal energy, causing the rubber band to feel warm. This phenomenon is known as hysteresis heating, a result of the viscoelastic nature of rubber materials.

Viscoelastic materials exhibit both viscous and elastic properties when undergoing deformation. The elastic component allows the rubber band to return to its original shape after being stretched, while the viscous component dissipates some of the applied energy as heat, resisting the rapid change in shape.

In summary, when a rubber band is repeatedly stretched, its polymeric molecules experience an increase in entropy due to the conversion of potential energy into kinetic energy. This, combined with the viscoelastic properties of the material, generates internal molecular friction, ultimately causing the rubber band to warm up through a process known as hysteresis heating.

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The definition of success for the MyMagic platform will depend on the specific goals, objectives, and expectations set by its stakeholders, whether they are the platform owners, users, or investors. By considering factors such as user adoption, functionality, business impact, customer satisfaction, and innovation, one can make a comprehensive assessment of whether the MyMagic platform can be deemed successful in its intended context.

Determining whether the MyMagic platform can be considered a success requires evaluating various factors and understanding the definition of success in this context. The success of a platform is multifaceted and can be assessed based on several key criteria.

1. User Adoption and Engagement: The level of user adoption and engagement is a critical factor in assessing the success of a platform. It is important to evaluate whether the MyMagic platform has attracted a significant user base and if users actively engage with the platform's features and services. Metrics such as the number of registered users, active users, and user feedback can provide insights into the platform's popularity and success.

2. Functionality and Performance: The platform's functionality and performance play a crucial role in determining its success. Assessing whether the MyMagic platform delivers on its promises and meets user expectations is essential. Factors to consider include the reliability, ease of use, availability of desired features, and overall user experience. If the platform consistently performs well and offers the functionalities users seek, it contributes to its success.

3. Business Impact: The success of the MyMagic platform can also be evaluated based on its impact on the business that operates it. Factors such as revenue generation, cost savings, market penetration, and market share can indicate the platform's success from a business perspective. If the platform has achieved its intended financial and market objectives, it can be considered successful.

4. Customer Satisfaction: Ensuring customer satisfaction is crucial for platform success. This includes understanding whether the MyMagic platform meets customer needs, provides value, and offers a positive experience. Customer feedback, reviews, and retention rates can provide insights into customer satisfaction levels. High customer satisfaction indicates that the platform is meeting its goals and is successful in delivering value to its users.

5. Innovation and Competitive Advantage: The MyMagic platform's success can be evaluated by its ability to introduce innovative features or services that differentiate it from competitors. Assessing whether the platform has a unique selling proposition, sustainable competitive advantage, or has disrupted the market positively can indicate its success in driving innovation and staying ahead of the competition.

Ultimately, the definition of success for the MyMagic platform will depend on the specific goals, objectives, and expectations set by its stakeholders, whether they are the platform owners, users, or investors. By considering factors such as user adoption, functionality, business impact, customer satisfaction, and innovation, one can make a comprehensive assessment of whether the MyMagic platform can be deemed successful in its intended context.

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Answer:

MKS stands for Meter, Kilogram and second. In this system of unit mass is given in Kilogram, length in meter and time in second. ... CGS system stands for Centimeter- Gram- Second system. In CGS system, length is measured in centimeters mass is measured in grams and time is in seconds.

The nose cone of a rocket can affect its flight in two primary ways: aerodynamic efficiency and stability.

Aerodynamic Efficiency: The shape of the nose cone plays a crucial role in reducing aerodynamic drag, which is the resistance that a rocket experiences as it moves through the atmosphere. A well-designed nose cone is streamlined and tapered, allowing the rocket to move through the air with minimal drag. By reducing drag, the rocket can achieve higher speeds and improve its overall efficiency. The nose cone's shape is typically designed to minimize shockwaves and pressure build-up, ensuring smooth airflow over the rocket's surface.

Stability: The nose cone also contributes to the rocket's stability during flight. Stability is essential to maintain control and prevent the rocket from veering off course or experiencing undesirable oscillations. The nose cone's position and shape affect the distribution of the rocket's center of gravity (CG) and center of pressure (CP). The CG represents the average location of the rocket's mass, while the CP is the point where the aerodynamic forces acting on the rocket are considered to be concentrated. For stable flight, the CP must be located behind the CG. The nose cone can be designed to provide stability by contributing mass towards the front of the rocket, shifting the CG forward, or by incorporating fins or other stabilizing features.

In summary, the nose cone of a rocket influences its flight by reducing aerodynamic drag and improving efficiency, as well as contributing to stability by affecting the rocket's center of gravity and center of pressure.

The magnitude of the velocity of the eagle is 69km/hr.

Given that,

Now the magnitude of the velocity of the eagle is

We know that

Momentum = Mass × velocity

345 = 5 × velocity

So, the velocity is 69 km/hr.

Therefore we can conclude that the magnitude of the velocity of the eagle is 69km/hr.

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Answer:

option B is correct

Explanation:

neutralization is the reaction between acid and base to produce water and salt therefore option B is correct

The potential energy is highest on a marble roller coaster at the highest point of the track.

The potential energy of an object is directly related to its height and its position relative to the reference point. In the case of a marble roller coaster, as the marble climbs up the track, it gains potential energy due to its increased height.

At the highest point of the roller coaster track, the marble reaches its maximum elevation, and thus, its potential energy is at its highest point.

As the marble moves downhill from the highest point, its potential energy decreases and is converted into kinetic energy, which is the energy of motion.

At the bottom of the track, where the marble reaches its lowest point, the potential energy is at its minimum because the height is at its lowest and the marble has converted most of its potential energy into kinetic energy.

The potential energy is highest on a marble roller coaster at the highest point of the track. This is where the marble reaches its maximum elevation and has the greatest amount of potential energy due to its height. As the marble moves downhill, its potential energy decreases and is converted into kinetic energy.

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Answer:

distance is a scalar quantity, it only has a magnitude, not direction

displacement is a vector quantity, it has both magnitude and direction

for example, 20m North -------> is a vector quantity, it shows direction

20m -----------> is a scalar quantity, it has not direction

Explanation:

A horizontal tube consists of a 7.0-cm diameter pipe that narrows to a 2.0-cm-diameter throat. In the pipe, the water pressure is twice atmospheric pressure and the water flows with a speed of 0.40 m/s.

The continuity equation relates the speed of a fluid to its cross-sectional area and the flow rate, and it is as follows:A1V1 = A2V2Where, A1 and A2 are the cross-sectional areas of the pipe and throat, respectively; V1 is the speed of water in the pipe, and V2 is the speed of water in the throat. The following equation may be derived from Bernoulli's equation:P1 + 1/2ρV1² = P2 + 1/2ρV2²Where, P1 is the pressure in the pipe, P2 is the pressure in the throat, and ρ is the density of the fluid. Bernoulli's equation applies to any incompressible fluid flowing through a pipe at a steady state Since the water is in turbulent flow at the throat, the assumption is that all of the pressure energy in the fluid is converted to kinetic energy. This occurs when the kinetic energy of water molecules is larger than the pressure energy in the fluid, resulting in turbulent flow.

The pressure in the throat can then be computed by equating the kinetic energy of water molecules in the throat to the pressure energy in the fluid at that location.ρV22/2 = P2where ρ is the density of water, and V2 is the velocity of water in the throat Substitute the value in the equation:ρ = 1000 kg/m³V2 = A1V1/A2 = π/4d₁²V1/A2 = (π/4 × 0.07² × 0.4)/ (π/4 × 0.02²) = 1.96 m/sP2 = ρV22/2 = 1000 × 1.962/2 = 1960  the pressure in the throat is 1960 Pa, assuming that the water's speed at that point is large enough that the water there is in turbulent flow.

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Part A - The apparent displacement of the mark is 4 cm.

The refractive index of a material, n = real depth, D/apparent depth, L.

So, n = D/L

Since the refractive index of the triangular glass prism is 1.5, n = 1.5. Also, the triangular glass prism is 12 cm thick and placed on a mark on a piece of paper resting on a horizontal bench. So, the real depth of the mark on the piece of paper through the triangular prism is D = 12 cm and its apparent depth is L.

Since n = D/L,

making L, subject of the formula, we have

L = D/n

Substituting the values of the variables into the equation, we have

L = D/n

L = 12 cm/1.5

L = 8 cm

so, the apparent depth of the mark is 8 cm.

So, the apparent displacement of the mark is d = D - L = 12 cm - 8 cm = 4 cm

Thus the apparent displacement of the mark is 4 cm.

Part B - The refractive index of water, n = 1.33.

The refractive index of a material, n = real depth, D/apparent depth, L.

So, n = D/L

Since the depth of water in the jar is 24 cm, the real depth, D = 24 cm.

Also, the bottom of the jar appears to be raised by 6 cm. So, the apparent depth, L = 24 cm - 6 cm = 18 cm

Since n = D/L, the refractive index of water n = D/L

Substituting the values of the variables into the equation, we have

n = D/L

= 24 cm/18 cm

= 1.33

So, the refractive index of water, n = 1.33.

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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:

ROYGBIV or Roy G. Biv is an acronym for the sequence of hues commonly described as making up a rainbow: red, orange, yellow, green, blue, indigo and violet. The initialism is sometimes referred to in reverse order, as VIBGYOR.

Answer:

Its either B or A

Explanation:

Answer:

I am really sorry but I can't understand the question.

Can you translate the question to English?

Explanation:

The ball must be thrown down with a velocity of 14 meters per second in order to bounce 10 meters higher than its original level, neglecting any energy losses in striking the ground.

To determine the speed at which a ball must be thrown down to bounce 10 meters higher than its original level, we can use the principle of conservation of energy. Neglecting energy losses due to air resistance and assuming an idealized situation, we can equate the potential energy gained during the bounce to the kinetic energy of the ball before it hits the ground.

The potential energy gained by the ball during the bounce is equal to the gravitational potential energy at the new height, which can be calculated as mgh.

where

m = mass of the ball,

g = acceleration due to gravity (approximately 9.8 m/s²)

h = height gained (10 meters in this case).

The kinetic energy of the ball just before it hits the ground is given by (1/2)mv²,

where

v = velocity of the ball.

Equating these two energies, we have:

mgh = (1/2)mv²

Canceling out the mass (m) from both sides of the equation, we get:

gh = (1/2)v²

Simplifying further, we have:

v = √(2gh)

Substituting the values of g (9.8 m/s²) and h (10 meters), we can calculate the velocity (v):

v = √(2 * 9.8 * 10) ≈ √(196) ≈ 14 m/s

Therefore, the ball must be thrown down with a velocity of approximately 14 meters per second in order to bounce 10 meters higher than its original level, neglecting any energy losses in striking the ground.

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1c 2c 3a 4a 5d

Explanation:

I just know.

ur welcome.

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To determine the mass of granite, we must first understand the definition of density. Density is defined as the amount of matter present in a substance per unit volume.

We use the formula: density = mass/volume to calculate the mass of a substance given its density and volume. To calculate the mass of 54.3 m³ of granite, we use the following steps:

Given Density of granite = 2700 kg/m³Given volume of granite = 54.3 m³Let us substitute the values in the formula of density:density = mass/volume Solving for mass, we get:mass = density × volume Substitute the given values of density and volume into the formula:mass = 2700 kg/m³ × 54.3 m³

The m³ unit in the volume cancels out, leaving us with kg as the unit for mass.

We then solve the equation to get the mass:mass = 146,610 kg

Therefore, the mass of 54.3 m³ of granite is 146,610 kg.

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Answer:

Force = 3 Newton

Explanation:

Given the following data;

Mass = 200 g to kilograms = 200/1000 = 0.2 kg

Acceleration = 15 m/s²

To find the force;

Force = mass * acceleration

Force = 0.2 * 15

Force = 3 Newton

Answer: Executive Order on Protecting American Monuments, Memorials, and Statues against our country are public monuments, memorials, and statues.

Explanation: learned it last week