The primary coiol of a transformer has 100 turns and its secondary coil has 400 turns if he ac voltage applied to the primary coil is 120v what voltage is present in tis secondary coil?

Answer:

Explanation:

4375J

Calculate the specific heat capacity of the lime juice.

The heat of fusion indicates the energy required to convert 1 g of solid to liquid at the same temperature. 250 x 332 Joules are required to melt 250 g of ice. For example, let's look at the energy required to melt 1 kg of ice at 0°C to produce 1 kg of water at 0°C.

For example, consider the energy required to melt 1 kg of ice at 0 °C to produce 1 kg of water at 0 °C. Using the temperature change equation and the water values ​​in Table 1, we find that Q = mLf = 1.0 kg,  334 kJ/kg = 334 kJ is the energy to melt 1 kilogram of ice. The specific heat capacity of lemonade is about the same as that of water c = 4186 J/kg°C.

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(a) The energy needed to melt the ice is 27200 J.

(b) The formula to calculate the energy gained by the melted ice is Q = mCΔT.

(c) The energy gained by the melted ice from lemonade is 2688 J.

(d) The lost energy by the lime juice is 29888 J.

(e) The specific heat capacity of the lime juice is 4.447 J/ g °C.

The mass of ice is 80 grams.

The temperature of lemonade decreases from 29 °C to 8 °C.

The mass of lemonade, M = 0.32 kg = 320 g

The specific latent heat of fusion of ice = 3.4 × 10⁵ J/kg

Specific heat capacity of water = 4.2 × 10³ J/kg °C

a) The heat energy required to melt 1 kg of ice = 3.4 × 10⁵ J

So, the heat energy to melt 1 gram of ice = 340 J

Therefore, the energy required to melt 80 grams of ice = 340 × 80 = 27200 J

b) The formula for the energy gained by the melted ice from the lemonade is:

Q = mCΔT

Where m is the mass, C is the specific heat capacity, and ΔT is the change in temperature.

c) The energy gained by the melting of ice at 0 °C, Q = mCΔT

Q = 80 × 4.2 × ( 8 °C - 0 °C)

Q = 2688 J

d) The energy lost by the lime juice is energy gained by ice and water.

Lost energy by lime juice = 27200 J + 2688 J = 29888 J

e) Let's say C' is the specific heat capacity of the lime juice.

Then,

Q = MC'ΔT

Q = 320 g × C' × ( 29 - 8 )

Q = 6720C'

In equilibrium,

Heat lost = heat gained

6720C' = 29888 J

C' = 4.447 J/ g °C

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Tomando en cuenta la Ley de Charles y la condiciones dentro del recipiente, tenemos las siguientes conclusiones con respecto al volumen del recipiente:

1) El volumen inicial del gas es 144.203 mililitros.

2) El volumen final del gas es 386.986 mililitros.

La Ley de Charles establece que el Volumen de un gas es directamente proporcional a su Temperatura, basados en este hecho, podemos resolver los problemas en cuestión mediante la siguiente relación matematica:

\(\frac{V_{1}}{T_{1}} = \frac{V_{2}}{T_{2}}\) (1)

Donde:

\(V_{1}\) - Volumen inicial, en mililitros.

\(V_{2}\) -  Volumen final, en mililitros.

\(T_{1}\) - Temperatura inicial, en Kelvin.

\(T_{2}\) - Temperatura final, en Kelvin.

1) Si sabemos que \(V_{2} = 150\,mL\), \(T_{2} = 388.15\,K\) and \(T_{1} = 373.15\,K\), entonces el volumen inicial del gas es:

\(V_{1} = \frac{T_{1}}{T_{2}}\times V_{2}\)

\(V_{1} = \frac{373.15\,K}{388.15\,K}\times 150\,mL\)

\(V_{1} = 144.203\,mL\)

El volumen inicial del gas es 144.203 mililitros.

2) Si sabemos que \(T_{1} = 473.15\,K\), \(V_{1} = 350\,mL\) and \(T_{2} = 523.15\,K\), entonces el volumen final del gas es:

\(V_{2} = \frac{T_{2}}{T_{1}}\times V_{1}\)

\(V_{2} = \frac{523.15\,K}{473.15\,K}\cdot 350\,mL\)

\(V_{2} = 386.986\,mL\)

El volumen final del gas es 386.986 mililitros.

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A mirror reverses left and right but not up and down because it reflects light rays without changing the orientation of objects in relation to gravity, while our perception of left and right is influenced by our own point of view.

The phenomenon of a mirror reversing left and right but not up and down is a result of the way reflections occur.

When we look at an object in a mirror, the mirror reflects the light rays that enter our eyes. The mirror doesn't actually change the orientation of the object itself. However, our perception of the reflected image is influenced by how we interpret the direction of the reflection.

Left and right are relative orientations based on our own point of view. When we face a mirror, our left side appears on the mirror's right side, and our right side appears on the mirror's left side. This reversal occurs because the mirror reflects light rays in a way that preserves the angles at which they strike the mirror's surface.

On the other hand, up and down are absolute orientations in relation to gravity. Gravity pulls objects in a consistent downward direction, and the mirror does not alter the orientation of objects with respect to gravity. Therefore, the reflection in the mirror appears to maintain the same up-down orientation.

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Answer:

the weight of the astronaut on Earth is 1209.88 N

Explanation:

Given;

weight of the astronaut, W = 200 N

acceleration due to gravity on moon, g = 1.62 m/s²

Apply Newton's second law of motion to determine the mass of the astronaut;

F = ma = mg

m = F/g

m = 200 / 1.62

m = 123.457 kg

The weight of the astronaut on Earth is calculated as follows;

F = mg

where;

g is acceleration due to gravity on Earth = 9.8 m/s²

F = 123.457 x 9.8

F = 1209.88 N

Therefore, the weight of the astronaut on Earth is 1209.88 N

The time taken for the APUSH textbook to hit the ground is determined as 0.55 seconds.

The time of motion of an object is the time taken for the object to travel from its initial point to the final point.

The time taken for the APUSH textbook to hit the ground is calculated as follows;

t = √(2h/g)

where;

t = √(2 x 1.5/9.8)

t = 0.55 seconds

Thus, the time taken for the APUSH textbook to hit the ground is determined as 0.55 seconds.

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Given that a horizontal force of at least 200 N is required to start moving an 800 N crate initially at rest on a horizontal floor. We are to find the coefficient of a static friction.To find the coefficient of static friction, we need to make use of the following formula.

When the crate is at rest, the force of static friction acting on the crate is maximum and is given by: f_s = μ_s × NwhereN is the normal force and is equal in magnitude to the weight of the crate.N = mgwhere m is the mass of the crate and g is the acceleration due to gravity.Substituting the value of N in the equation for the force of static friction, we get:f_s = μ_s × mg.

Given that a horizontal force of at least 200 N is required to start moving the crate, the force of static friction acting on the crate is equal to 200 N. Thus, we have:f_s = 200 N = μ_s × mgSubstituting the values of f_s, m, and g, we get:200 N = μ_s × 800 N × 9.81 m/s² Simplifying.

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Answer:

0.5m/s^2

Explanation:

We can use the formula [ F = ma ] but solve for "a" since that is what we are looking for.

F = ma

F/m = a

We know the net force and mass so substitute those values and simplify.

500/1000 = 0.5m/s^2

Best of Luck!

≈ 0.47 m/s²

Hi there !

Acceleration formula

a = (v₂ - v₁)/t

a = (26.8m/s - 24.8m/s)/4.3s

= (2m/s)/4.3s

≈ 0.47 m/s²

Good luck !

This question involves the concepts of tension force and centripetal force.

The tension force in the rope is "3.4 N".

In this scenario, the centripetal force shall be acting as the tension force of the rope. Because in order for the puck to move in a circular path, the tension force in the rope must be equal to the centripetal force.

\(Tension\ Force = Centripetal\ Force\\F = \frac{mv^2}{r}\)

where,

F = tension force = ?

m = mass of puck = 170 g = 0.17 kg

r = radius of path = length of rope = 65 cm = 0.65 m

v = linear speed of puck = r(angular speed) = (0.65 m)(53 rpm)\((\frac{2\pi\ rad}{1\ rev})(\frac{1\ min}{60\ s})\)

v = 3.61 m/s

Therefore,

\(F = \frac{(0.17\ kg)(3.61\ m/s)^2}{0.65\ m}\)

F = 3.4 N

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The attached picture shows the centripetal force.

Answer:

50*5=250KG*M/S

Explanation:

P=M*V

MOMENTUM FORMULA

Answer:

The answer choice is C because La Nina Is the cooled part of the sea while El Nino is the warmed part of the sea.

Explanation:

You don't need to thank me... : )

The main difference between a white-dwarf supernova and a massive-star supernova is the absence/presence of hydrogen lines in the spectrum.

A white-dwarf supernova occurs when a white dwarf star accumulates enough mass from a companion star to surpass the Chandrasekhar limit and undergoes a thermonuclear explosion. This explosion results in a lack of hydrogen lines in the spectrum due to the absence of hydrogen in the white dwarf's composition.

On the other hand, a massive-star supernova occurs when a massive star exhausts its fuel and undergoes a core-collapse explosion. This explosion results in the presence of hydrogen lines in the spectrum due to the abundance of hydrogen in the star's composition.

Additionally, massive-star supernovae often have a higher luminosity and longer duration than white-dwarf supernovae. Observationally, astronomers can differentiate between the two types of supernovae by analyzing the spectrum of the explosion and looking for the presence or absence of hydrogen lines.

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Answer:

c

Explanation:

i just did the test

The energy of the molecules in the ground increases in the given case when the temperature increases.

• The heat of the Earth is released in both conduction and convection in Yellowstone Park.  

• Conduction takes place when the transferring of heat takes place from something hot to something cold.  

• On the other hand, convection takes place when the transferring of heat takes place by the movement of hot gases or liquids like water, air, or magma to a cooler region.  

• The same phenomenon takes place underneath the Yellowstone. The convection of the molten rock in the magma chamber underneath transfers heat via the caldera of Yellowstone.  

• Near the surface of the ground, the convection of heat water results in the hot springs and geysers in the park.  

Thus, when the temperature increases, the energy of the molecules in the ground also increases resulting in the formation of geysers. The correct answer is option c.

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Answer:

Its the third quarter or waning quarter

  Hope this helps :3

It is believed that the universe will continue to expand forever due to the dominance of dark energy. The recessional speed V of a galaxy a distance r from us is determined only by the matter that lies inside a sphere of radius r centered on us.

To determine whether the universe will continue to expand forever, we need to consider the concept of the critical density and the escape speed from a sphere of matter.

The critical density (ρc) is the density required for the universe to be flat, meaning that the expansion rate is just right to balance the gravitational pull of matter. If the actual density (ρ) of the universe is less than the critical density, the universe will expand forever.

Now, let's consider the escape speed (Ve) from a sphere of matter with mass (m) and radius (r), centered on us. The escape speed is the minimum speed needed for an object to escape the gravitational pull of the sphere and move away indefinitely. The escape speed is given by the formula:

Ve = √(2GM/r)

Where G is the gravitational constant.

If we assume that the recessional speed (v) of a galaxy at a distance (r) from us is determined solely by the mass (m) inside a sphere of radius (r) centered on us, we can compare the escape speed (Ve) to the recessional speed (v) to understand the future expansion of the universe.

If V is greater than or equal to Ve for all galaxies at different distances, it means that the recessional speed is sufficient to overcome the gravitational pull and the universe will expand forever.

On the other hand, if V is less than Ve for any galaxy at a particular distance, it means that the recessional speed is not enough to escape the gravitational pull, indicating that the universe would eventually stop expanding and possibly collapse under its own gravity.

However, it's important to note that in reality, the expansion of the universe is influenced by factors beyond the matter inside a given sphere, such as dark energy. Dark energy is thought to be responsible for the accelerated expansion of the universe. Therefore, while the assumption of considering matter within a sphere can provide some insights, it doesn't capture the full picture of the universe's fate.

Based on current scientific understanding and observations, it is believed that the universe will continue to expand forever due to the dominance of dark energy.

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Answer:

4. y = 2.38333t - 26.55 is the answer.

The motion of the Soyuz capsule after it breaks free of the ISS but before the panicked astronaut retrieves it can be described as an initial state of zero velocity and a free-fall motion caused by gravity.

When the Soyuz capsule breaks free of the ISS, it has an initial velocity of zero relative to the ISS. Since there is no air resistance in space, the only force acting on the capsule is gravity, which causes it to fall towards the Earth. The motion of the capsule can be described as a free-fall motion until some other force, such as atmospheric drag, slows it down or stops it.

The rotational inertia of the assembly decreases by 14.9% when the innermost particle is removed and 49.2% when the outermost particle is removed.

The rotational inertia of an assembly is calculated by the sum of each particle's moment of inertia, which is calculated by its mass multiplied by the square of its distance from the axis of rotation. When one particle is removed from the assembly, the rotational inertia decreases by a percentage equal to the amount of mass removed multiplied by the square of the distance of that particle from the axis of rotation.

For the innermost particle, since it is closest to the axis of rotation, its removal will cause the greatest decrease in rotational inertia. The percentage decrease in rotational inertia when the innermost particle is removed would be 33% x (0.0121 kg x (3.045 cm)2) / (0.0363 kg x (6.09 cm)2) = 14.9%.

For the outermost particle, since it is farthest from the axis of rotation, its removal will cause the smallest decrease in rotational inertia. The percentage decrease in rotational inertia when the outermost particle is removed would be 33% x (0.0121 kg x (9.135 cm)2) / (0.0363 kg x (6.09 cm)2) = 49.2%.

In summary, the rotational inertia of the assembly decreases by 14.9% when the innermost particle is removed and 49.2% when the outermost particle is removed.

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The volume that 1L of gas will occupy at 37°C and a constant pressure is 0.8L. Details about volume can be found below.

The volume of a gas can be calculated using the Charles law equation as follows:

V1/T1 = V2/T2

Where;

1/310 = V2/248

248 = 310V2

V2 = 248 ÷ 310

V2 = 0.8L

Therefore, the volume that 1L of gas will occupy at 37°C and a constant pressure is 0.8L.

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The statement that explains why James, who operates an apple orchard that sells a very rare type of gourmet apple, would probably choose not to participate in contract production is because he independently grows a unique product, he is already locked in to the best price of the market (option A).

Contract manufacturing or production occurs when a small business hires another company to produce its products.

This enables small business individuals to begin selling their products without obtaining the large amount of capital necessary to build and run a factory.

However, according to this question, James is a business individual who operates an apple orchard that sells a very rare type of gourmet apple.

Therefore, James would not need to participate in contract production because he independently grows a unique product, he is already locked in to the best price of the market.

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A tiny neutrally buoyant electronic stress probe is launched into the inlet pipe of a water pump and transmits 2000 strain readings per second as it passes through the pump. This is a lagrangian measurement.

Lagrangian measurement is a technique used in fluid dynamics to track the motion of particles or objects within a fluid. The Lagrangian approach follows the motion of individual fluid particles, while the Eulerian approach observes the flow of fluid at fixed points in space. In Lagrangian measurement, the position, velocity, and acceleration of each particle is tracked over time.

Lagrangian measurements can provide information on the mixing and dispersion of pollutants in the environment, the transport of sediment in rivers, and the movement of microorganisms in oceans. Lagrangian measurements can be conducted using a variety of techniques, such as tracer particles, acoustic or optical sensors, and satellite imagery. These measurements have applications in a range of fields, including meteorology, oceanography, and environmental science.

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Answer:

We know that:

Distance between Odysseus and Penelope = 50m

Speed of Odysseus = So = 4m/s

Speed of Penelope = Sp = 6m/s.

Now we want to find the equation of motion for Odysseus.

First, let's find the amount of time that he is moving, we know that when he meets with Penelope, he will stop moving.

Now they weel meet each other when the total distance traveled by both of them is equal to 50m.

Then, recalling that:

Distance = Time*speed.

50m = 4m/s*t + 6m/s*t = 10m/s*t

t = 50m/10m/s = 5s

They will move for 5 seconds.

Now we can write the movement equation for Odysseus as:

p(t) = 4m/s*t + p0 for (0s ≤ t ≤ 5s)

Where p0 is the initial position of Odysseus, and because we can put our coordinate axis where we want, we can define p0 = 0m.

Then the position of Odysseus is:

P(t) = 4m/s*t                    if 0s ≤ t ≤ 5s

P(t) = 4m/s*5s = 20m     if t > 5s.

The second piece says that for t larger than 5 seconds, he will not move (at least for a given amount of time)

Answer:

An inactive or sedentary way of life. All of these terms, which you have certainly heard before, refer to a lifestyle that involves a lot of sitting and lying down and little to no activity. People are engaging in sedentary activities for an increasing amount of time both in the United States and abroad.

Explanation:

Brainliest pls

The 2 springs should be connected in parallel so that the spring Constant for the combination is 1 Twice that of a single Spring.

How does Hooke's law work?

In accordance with Hooke's law, a principle of elasticity, for relatively minor deformations of an object, the displacement or size of the deformation is directly proportional to the deforming force or load

A system of two parallel springs connected in accordance with Hooke's Law is equivalent to a single Hookean spring with a spring constant of k. The formula that applies to capacitors linked in parallel in an electrical circuit can be used to determine the value of k.

If spring 1 and 2 have spring constants k1 and k2 respectively,

k is k1+k2

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The acceleration of the string is 4.3 m/s2.

We regard the positive direction for the vertical motion of mass m1 to be downward and the positive direction for the motion of mass m2 on the incline to be to the right and parallel to the incline.

There are only two ways to accelerate: changing your speed or changing your direction, or changing both. This is because velocity is both a speed and a direction.

Changing the speed at which an object is travelling is what acceleration is all about. A substance is not accelerating if its velocity is not changing. The information on the right depicts an object that is speeding as it moves northward.

Therefore, The acceleration of the string is 4.3 m/s2.

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.

During the constant-speed ascent of a box pulled up by a man with negligible air resistance, the work performed by conservative forces on the box is zero, and the net work performed on the box is also zero.

When the box is raised at a constant speed, the force applied by the man pulling the rope is equal in magnitude but opposite in direction to the gravitational force acting on the box. Since the box moves with constant speed, the net force acting on it is zero.

The work done by a force is given by the product of the force and the displacement of the object in the direction of the force. In this case, the displacement is upward, while the gravitational force and the force applied by the man are in the opposite direction. Therefore, the work performed by the conservative forces, which include the gravitational force, is zero.

Similarly, since the box moves with constant speed, there is no change in its kinetic energy, and hence the work performed by non-conservative forces, such as friction, is also zero. Thus, both statements a and b are true. The net work performed on the box is zero because the work done by the conservative forces cancels out the work done by the non-conservative forces.

Overall, the work-energy theorem states that the work done on an object is equal to its change in kinetic energy. In this case, as the box moves with constant speed, there is no change in kinetic energy, so the net work performed on the box is zero.

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