The secondary coil consists of 500 loops and has an output voltage of 1000 V. If the primary coil had only 25 loops, what was the voltage across the primary coil?

12.5 V

20 V

50 V

25,000 V

When two surfaces glide past one another, a force known as friction is created.Friction forces that oppose the motion of moving objects cause them to expend energy and slow down.

An object rolls on a surface, creating rolling friction. When two surfaces rub against one another, sliding friction occurs. The deformation of surfaces causes rolling friction. Because tiny surfaces connect, sliding friction occurs.

Therefore, When the child pushes themselves down the slides. As the child is in motion as they are sliding down.

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Answer:When the child pushes themselves down the slides.

Explanation: i think im not sure

Answer:

\(P.E=mgh \\ = 8kg \times 9.81m {s}^{ - 2} \times 10m = 784J\)

Answer:

B 85.8m/s

Explanation:

frequency(Hz) = 220

wavelength(m) = 0.39

formula for Speed of a wave

Speed = Wavelength x Frequency

speed = 0.39 × 220

speed = 85.8m/s

i hope this helped

Answer:  B. 85.8 m/s ✅

Explanation: The speed of a wave can be calculated using the equation:

Velocity = Frequency * Wavelength

Given that the frequency of the wave is 220 Hz and the wavelength is 0.39 m, we can plug these values into the equation:

Velocity = 220 Hz * 0.39 m

The speed of the wave is 85.8 m/s or approximately 309 km/h or 192 mi/h ✅

PLEASEEEE GIVE BRANLIEST

Answer:

the answer for this is Letter B

The same thing could reasonably be said about multicollinearity. Specifically, the reason for this is due to the violation of the assumption of independent predictors.

Let us understand what these terms mean:

In statistical analysis, multicollinearity is the high correlation among predictors in a regression model. It is problematic because of its adverse effects on the model, including making it difficult to determine the effect of an independent variable, coefficients becoming insensitive to small changes in the model, and reducing the reliability of the model.

In regression analysis, independent predictors are those variables that contribute to the prediction of the dependent variable or outcome, and their inclusion in the model improves the accuracy of the prediction of the model.

In a regression model, it is an assumption that predictors are independent, which means that the predictors have little to no correlation with each other. If this assumption is violated, it is known as multicollinearity.

Therefore, the same thing could reasonably be said about multicollinearity. Specifically, the reason for this is due to the violation of the assumption of independent predictors.

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Answer:

I'M SORRY I CAN'T SEE THE PICTURE BUT IT WILL MOST LIKELY BE THE DIFFERENCE BETWEEN THE NUMBERS

Explanation:

for instance if there was someone pushing a desk with a net force of 9 towards the right, the net force would come to a total of 9 since there is no one on the other side pushing the desk. Meaning the desk would go right. I'm sorry if this isn't what you needed D:

Answer: 93.8m/s²

Explanation:

The acceleration amplitude is given by,

aₓ = ω² * xₓ

where ω is the angular frequency and ω = 2πf

since there are 2π radians in one cycle,

acceleration can be given as

aₓ = (2π*8.90)² * ( 0.03)

∴aₓ = 93.8 m/s²

Answer:

The GPE, stored is 640 Joules

Explanation:

The given parameters are;

The given mass of the astronaut, m = 80 kg

The height of the top of the lunar lander to which the astronaut climbs, h = 5 m

The gravity strength on the moon, g = 1.6 N/kg

The Gravitational Potential Energy, GPE, stored is given according to the following equation;

GPE stored = m·g·h

Therefore, by substituting the known values, we have;

GPE Stored = 80 kg × 1.6 N/kg × 5 m = 640 Joules

The GPE, stored = 640 Joules.

Answer:

If the bicycle went down the hill, because if you are at the top of the hill, that is potential energy, when you start going down, it is turned into kinetic energy. Makes sense?

Explanation:

Answer:

Let No be initial no of atoms

N = N0 / 2      after 1 half-life

N = N0 / 4     after 2 half-lives

So after 2 half-lives 20 of the 80 atoms remain

Answer: Its nuclear fusion

Explanation:

Answer:

Pretty sure it's Radiation.

Answer:

frequency=1/time period

=1/16 seconds

=0.0625 Hz

Explanation:

S, P, D, and f are the four potential subshells in quantum mechanical theories. The angle momentum quantum number, l, is represented by these letters in numerical form.

A subshell is a group of states that make up a shell and are identified by the azimuthal quantum number, l. Subshells s, p, d, and f are represented by the values l = 0, 1, 2, and 3, respectively. The equation 2(2l + 1) states how many electrons can fit into a subshell at once.

The circular routes that electrons take in an atom's shells as they circle its nucleus. (In line with the Bohr Model). The primary quantum number, n, serves as a representation of the shells. Additionally, each shell is divided once more into many subshells.

Four subshells are present: s, p, d, and f.

For instance, the first shell has just one sub-shell, which is s.

There are two sub-shells in the second shell: s and p.There are three sub-shells in the third shell: s, p, and d.The remaining shells are made up of all four subshells: s, p, d, and f.

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A contact with the ball by another player on the same team after a teammate has made initial contact with the ball is called a double hit in volleyball.

A spike is a powerful and aggressive attack in volleyball, designed to score a point by hitting the ball with force and precision over the net and into the opponent's court.

When a player on a team makes contact with the ball, the next player on the same team must not touch the ball consecutively without an opponent's touch in between. If this happens, it is called a double hit or illegal hit, and the opposing team is awarded a point. However, there are certain exceptions, such as if the two consecutive touches are made by different parts of the same player's body or if the ball is touched by two players simultaneously.

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Answer:

Using a Compass to Identify Magnet North Pole

Watch carefully at where the compass needle points. The point that normally points to the north pole of Earth should point to one end of the magnet. That end is actually the South pole of the magnet

Explanation:

Hope it help you

Plz mark my answer brainliest✍️✍️

Answer:

A

Explanation:

Height h(t): The height of the ball can be determined using the equation h(t) = h0 + v0t + (1/2)at^2, where h0 is the initial height. In this case, h0 is 4.1 m. h(t) = 4.1 + 53t - (1/2)(9.8)t^2The velocity equation shows that the ball's velocity decreases over time due to the acceleration of gravity.

To solve for the velocity v(t) and height h(t) of the ball t seconds after it is thrown, we can use the equations of motion.

Velocity v(t): The velocity of the ball can be determined using the equation v(t) = v0 + at, where v0 is the initial velocity and a is the acceleration. In this case, the initial velocity v0 is 53 m/s and the acceleration a is -9.8 m/s^2 (negative sign indicates the downward direction due to gravity).

v(t) = 53 - 9.8t

Height h(t): The height of the ball can be determined using the equation h(t) = h0 + v0t + (1/2)at^2, where h0 is the initial height. In this case, h0 is 4.1 m.

h(t) = 4.1 + 53t - (1/2)(9.8)t^2

These equations provide the velocity and height of the ball at any given time t after it is thrown. The velocity equation shows that the ball's velocity decreases over time due to the acceleration of gravity. The height equation represents the trajectory of the ball, taking into account its initial height, initial velocity, and the effects of gravity.

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Therefore, Weber is the unit of magnetic flux. Magnetic flux density (B) is measured in tesla (T). option 1

The SI unit for magnetic flux is Weber. Magnetic flux is a measure of the amount of magnetic field passing through a given area. It is expressed in Weber (Wb) which is the SI unit of magnetic flux.

The magnetic flux passing through a surface is given by the formula

ϕ = B.A

where B is the magnetic field and A is the area of the surface.

A magnetic field of one Tesla (1 T) passing through an area of 1 m2 perpendicular to it produces a flux of 1 Wb.

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Answer:

The handels are plastic because plastic is not a conductor of heat. This way, the plastic prevents u from getting burnt/hurt.

Explanation:

:)

Answer:

because the stove is hot and it's made out of metal so if they made the handles metal you could not even have use pots , they put plastic handles because they don't want us to get burned

In order to form a hypothesis that would illustrate the relationship between mass and kinetic energy, we first need to understand what kinetic energy and mass are and how they are related. Kinetic energy is the energy that an object possesses due to its motion, and is given by the formula KE = 0.5mv², where m is the mass of the object and v is its velocity. Mass, on the other hand, is a measure of the amount of matter in an object.

The relationship between mass and kinetic energy is direct, meaning that as mass increases, so does kinetic energy, provided that velocity remains constant. Similarly, if velocity increases, then kinetic energy will increase as well, provided that mass remains constant.

The hypothesis that illustrates this relationship can be stated as follows:If the mass of an object is increased, then the kinetic energy of the object will also increase, because kinetic energy is directly proportional to mass, assuming velocity remains constant.In other words, if the mass of an object is doubled, then its kinetic energy will also double, assuming that its velocity remains constant. This hypothesis can be tested through experiments that involve measuring the kinetic energy of objects with different masses, but with the same velocity.

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If the mass of an object increases, then its kinetic energy will increase proportionally because mass and kinetic energy have a linear relationship when graphed.

Answer: tbh I think it’s C I did research and says similar about it

Explanation:

The best data about the surface topography of Venus has come from various missions and instruments sent by different space agencies. The first spacecraft to provide information about Venus was NASA's Mariner 2, which made a flyby in 1962.

However, it was the Soviet Venera missions that provided the most detailed information about the planet's surface in the 1970s and 1980s. The Venera probes used radar to map the surface, revealing that Venus has vast volcanic plains, impact craters, and mountain ranges. Later missions, such as NASA's Magellan spacecraft in the 1990s, provided even more detailed maps of Venus' surface topography using advanced radar imaging techniques.

With these missions, scientists have been able to study the geology and morphology of Venus, including its thick atmosphere, which has made it difficult to observe the surface with visible light. Overall, the data collected from these missions has greatly improved our understanding of Venus and its unique topography.

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The ΔV is negative, it indicates that the volume of the system has decreased. So, the change in the volume of the system is approximately -0.0096 m³, and it is a decrease.

To solve this problem, we will use the first law of thermodynamics and the given information. The first law of thermodynamics states that:
ΔU = Q - W
where ΔU is the change in internal energy, Q is the heat added to the system, and W is the work done by the system. We are given that:
Q = 2780 J (system gains 2780 J of heat)
ΔU = 3990 J (internal energy increases by 3990 J)
We need to find the work done by the system (W). Since the process occurs at a constant pressure, we can use the formula:
W = P * ΔV
where P is the constant pressure and ΔV is the change in volume. We are given that:
P = 1.26 * 10^5 Pa
Now, let's plug this information into the first law of thermodynamics and solve for W:
3990 J = 2780 J - W
W = -1210 J
Since the work done by the system is negative, it means the system is doing work on the surroundings. Now we can use this value of W to find the change in volume:
-1210 J = (1.26 * 10^5 Pa) * ΔV
Now, solve for ΔV:
ΔV = (-1210 J) / (1.26 * 10^5 Pa)
ΔV ≈ -0.0096 m³
Since ΔV is negative, it indicates that the volume of the system has decreased. So, the change in the volume of the system is approximately -0.0096 m³, and it is a decrease.

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Kieran had a greater average speed than Jevon. Let us go into more detail in the explanation below. To compare the average speeds of Kieran and Jevon, we need to find out the speed of each person.

We can use the formula speed = distance/time. Kieran ran 8 laps in 18 minutes, which means he ran 8/18 = 0.44 laps per minute. To find out Kieran's speed, we need to multiply this by the length of one lap. If we assume that the length of one lap is 400 meters, then Kieran's speed is:0.44 laps per minute × 400 meters per lap = 176 meters per minute Jevon ran 6 laps of the track, but we don't know how long it took him.

Therefore, we can't calculate his speed directly. However, we can still compare his speed to Kieran's by using ratios. If we assume that Jevon ran the same length of track as Kieran, then we can write the following equation: Kieran's speed/Jevon's speed = Jevon's time/Kieran's time.

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The :Gene, chromosomes, and nucleus is the cell components are are most involved in determining an organisms traits.

As it relates to genetics, a trait is a unique quality about a person. Genes, environmental influences, or a combination of both can influence traits. Qualitative traits, like eye color, can also be quantitative (such as height or blood pressure).

Your traits, which are features or characteristics that you inherit from your parents, are determined by the information carried by your genes (say: trates). In the human body, each cell has between 25,000 and 35,000 genes.

A trait is a unique attribute, propensity, or characteristic that someone, something, or both have. In those early months, many of our personality traits are formed. Humans are creative beings. Synonyms: trait, quality, feature, attribute additional words for characteristic

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Answer:

2) same size, same distance away from the mirror

Explanation:

The image formed by a plane mirror has the same size and it is at the same distance of the object. It is also reversed from left to right. So, the size and position of an image formed by a plane mirror are

2) same size, the same distance away from the mirror

The true statement about the equation of respiration is:

The mass of the reactants is the same as the mass of the products; option C.

Respiration is the process by which living organisms break down large molecules such as glucose into smaller molecules such a carbon dioxide and water to release energy in the form of ATP.

Respiration are of two types in living organisms:

The equation of aerobic respiration is given below:

In the given equation above, glucose reacts i the presence of oxygen is broken down into carbon dioxide and water and energy is released.

According to the law of conservation of mass, the mass of reactants is equal to the mass of the products.

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Note that the complete question is given below:

Respiration describes the process that living cells use to release energy by combining sugar and oxygen. The primary chemical changes that happen during respiration are shown in the equation below.

C₆H₁₂O₆ + 6 O₂ → 6 CO₂ + 6 H₂O + energy

Which statement correctly compares the reactants and products of the equation?

Which statement correctly compares the reactants and products of the equation?

A.

The mass of the reactants is less than the mass of the products.

B.

The mass of the reactants is greater than the mass of the products.

C.

The mass of the reactants is the same as the mass of the products.

D.

The number of reactant molecules is greater than the number of products.