1. A boat is floating on the water.
One of the forces acting on the boat is the weight. This is the force of the Earth on the boat.
a
State the other force in this interaction pair.
(1 mark)

The ksp (solubility product constant) in CaCO₃ solubility (formula weight 100.1) is 0.0095 g in 1800 ml = 2.8 x 10⁻⁹ (option A)

The equilibrium constant for a saturated solution of an ionic chemical at a specific temperature is known as the solubility product constant (Ksp). We need to know the compound's molar solubility in order to determine the Ksp.

m = 0.0095 g

Mr = 100 g/mol

V =  1800 ml.

M = (m/Mr) x (1000/V)

= (0.0095 / 100) x (1000 / 1800)

= 5.2 x 10⁻⁵

Ksp CaCO₃ ⇒ Ca²⁺ + CO₃²⁻

Ksp CaCO₃ = s²

Ksp CaCO₃ = (5.2 x 10⁻⁵)²

= 2.8 x 10⁻⁹

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To calculate the elasticity of demand using the mid-point method, we can use the formula:

Elasticity of Demand = (Percentage change in quantity demanded) / (Percentage change in price)

First, let's calculate the percentage change in quantity demanded:

Change in quantity demanded = \( Q_2 - Q_1 \) = \( 0 - 100 \) = -100

Average quantity demanded = \( (Q_1 + Q_2) / 2 \) = \( (100 + 0) / 2 \) = 50

Percentage change in quantity demanded = (Change in quantity demanded / Average quantity demanded) * 100

Percentage change in quantity demanded = (-100 / 50) * 100 = -200%

Next, let's calculate the percentage change in price:

Change in price = \( P_2 - P_1 \) = \( 9 - 7 \) = 2

Average price = \( (P_1 + P_2) / 2 \) = \( (7 + 9) / 2 \) = 8

Percentage change in price = (Change in price / Average price) * 100

Percentage change in price = (2 / 8) * 100 = 25%

Now we can calculate the elasticity of demand:

Elasticity of Demand = (Percentage change in quantity demanded) / (Percentage change in price)

Elasticity of Demand = (-200% / 25%) = -8

The elasticity coefficient of -8 means that the demand for wheat bread is highly elastic. This means that a change in price will result in a proportionately larger change in quantity demanded. In this case, a 1% increase in price would lead to an 8% decrease in quantity demanded. Similarly, a 1% decrease in price would result in an 8% increase in quantity demanded.

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A suitcase's kinetic frictiοn cοefficient with the grοund is 0.272. the required wοrk is 2164 J.

A fοrce acting between surfaces that are mοving is knοwn as kinetic frictiοn. A fοrce is applied in the οppοsite directiοn οf a bοdy's mοvement οn the surface. The kinetic frictiοn cοefficient between the twο materials will determine the fοrce's magnitude.

The relative speed at which the surfaces in cοntact are mοving is nοt a factοr in determining the amοunt οf kinetic frictiοn. Kinetic frictiοn is different frοm οther frictiοn-like phenοmena like air resistance and viscοus fοrce in this way.

Evaluating:

let the distance is d

Using wοrk energy theοrem:

wοrk dοne = u × m × g ×h

642 = 0.272 × 71.5 × 9.8 × d

d = 3.37 m

the suitcase can be pushed a distance οf 3.37 m fοr the wοrk dοne

wοrk needed = change in kinetic energy

wοrk needed = 0.5 × 73 × 7.7²

wοrk needed =  2164 J

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To find the center of mass of an irregular shape using

String- for hanging at the center

• A small mass - hung from the string

• A stand-holding up the string

• A pencil pinpointing the center

• A straight-edge- Identify the middle

Generally, a point indicates the mean location of the matter in a body or system.

In conclusion, the center of mass also indicates a point at which the body is most balanced under gravity.

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Inducing magnetic properties on a substance means you are aligning the electrons to spin in the same direction, 2nd option.

The magnetic intensity is the magnetic field produced solely by the electric current flowing in a solenoid. The magnetic property of a material is induced by an external magnetic field. When a material is exposed to an external magnetic field, it becomes magnetized.

A strong magnetic field is produced when the majority of electrons in an atom spin in the same direction. The magnetic field's direction is determined by the direction of electron spin.

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If two cars meet on a narrow grade and they cannot pass, the right-of-way should be yielded to (B) The car going uphill.

In the situation that two vehicles met on a winding mountain road that is only wide enough for one vehicle to go at a time, the driver of the vehicle that is driving downhill is required to give way to the driver of the vehicle that is traveling upwards. If it is more convenient for the car going uphill to locate a larger space or turnout, then the vehicle going downhill should pull over far enough to make room for the other vehicle to pass through.

So option B is the correct option.

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No, the sun cannot explain global warming. Global warming is a phenomenon in which the temperature of the Earth's surface and atmosphere is rising continuously due to human activities such as deforestation, burning of fossil fuels, and industrialization.

This increase in temperature cannot be explained only by an increase in solar radiation.There are several factors which contribute to global warming, including greenhouse gases such as carbon dioxide, methane, and water vapor. These gases trap heat in the Earth's atmosphere, which causes the planet's temperature to rise. The sun's radiation does contribute to global warming, but it is not the main cause.

i) To calculate the increase in solar radiation that would cause the Earth to warm up by 1 K, we can use the following formula:ΔS = ΔT / αWhere ΔS is the increase in solar constant, ΔT is the increase in temperature, and α is the Earth's albedo (reflectivity).α = 0.30 is the standard value used for the Earth's albedo.ΔS = ΔT / αΔS = 1 K / 0.30ΔS = 3.33 W/m2So, to explain the increase in temperature of 1 K over the last hundred years, the solar constant would need to increase by 3.33 W/m2.

ii) The observed fluctuation of the solar constant over the past 400 years has been around 0.1% to 0.2%. This is much smaller than the 3.33 W/m2 required to explain the increase in temperature of 1 K over the last hundred years. Therefore, it is unlikely that the sun is the main cause of global warming.

The sun cannot explain global warming. While the sun's radiation does contribute to global warming, it is not the main cause. The main cause of global warming is human activities, particularly the burning of fossil fuels, which release large amounts of greenhouse gases into the atmosphere.

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The average acceleration is 2.33 m/s². the total distance traveled is 1.5 meters, and the total time taken is 0.84 seconds. The average velocity of the object during this period of motion is approximately 1.79 m/s.

The average acceleration of the object can be calculated by dividing the change in velocity by the distance traveled. In this case, the object started from rest and reached an instantaneous velocity of 3.5 m/s over a distance of 1.5 m. The change in velocity is 3.5 m/s - 0 m/s = 3.5 m/s. Therefore, the average acceleration is 3.5 m/s divided by 1.5 m, which equals 2.33 m/s².

distance = (initial velocity × time) + (0.5 × acceleration × time²). Given that the initial velocity is 0 m/s, the distance is 1.5 m, and the average acceleration is 2.33 m/s², we can solve for time. Rearranging the equation, we have 1.5 m = 0.5 × 2.33 m/s² × time². Solving for time, we find that it took approximately 0.84 seconds for the object to travel 1.5 meters. In this case, the total distance traveled is 1.5 meters, and the total time taken is 0.84 seconds. Therefore, the average velocity is 1.5 m divided by 0.84 s, which equals approximately 1.79 m/s.

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Material from the early solar system that was never transformed into a planet is now left over in space. After the planets formed, particles collided and created space debris.

Radiation pressure from the sun and the powerful solar wind both helped to expel the gas from the solar nebula. By the end of the Heavy Bombardment period, part of the residual debris had been removed from the nebula. The nebular hypothesis is the theory of planetary creation that is most widely accepted. According to this theory, the Solar System was created 4.6 billion years ago as a result of the gravitational collapse of a massive molecular cloud that stretched across several light-years.

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Nuclear fission is used by all nuclear power plants, and uranium atoms are typically used in nuclear power plants.In nuclear fission, an neutron splits an atom of uranium by slamming against it; two neutrons are created in the process.

A U-235 nucleus immediately splits in half after taking in an additional neutron.Fission is the term for this action (see diagram below).A split U-235 nucleus releases two to three neutrons each time it divides.As a result, starting a chain reaction is possible.

Continuous fission was achieved as more neutrons are successively emitted.Fission-generated neutrons have tremendous energy and move very swiftly.The procedure of moderation is used in most reactors to slow down these so-called rapid neutrons because they do not promote fission as effectively as slower-moving ones do.

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The acceleration on the 5kg block is 1.088m/s^2

Data;

To solve this question, we just need to use Newton's second law of motion which states that "the time rate of change of the momentum of a body is equal in both magnitude and direction to the force imposed on it."

\(F_n_e_t = M_t_o_t_a_l * a\\F = ma\\F_n_e_t = mg\\\)

But then the force on both sides will be

\(mg = ma\\5g - 4g= (4+5) a\\(5-4)g = 9a\\g = 9a\\a = \frac{g}{9} \\a = \frac{9.80}{9} \\a = 1.088 m/s^2\)

The acceleration on the 5kg block is 1.088m/s^2

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Answer:charge

Explanation:

So the electric current is a flow of electric charge

Answer: Lol “USE CORRECT UNITS!” I GOT YOU BABES: 9/3=3 current is 3 amperes.

Explanation:

Given what we know we can confirm that a suspect who fakes intellectual disability in order to explain his innocence in a murder is malingering.

This is the action of pretending to be ill in some way in order to avoid a certain responsibility. In this case, the suspect is malingering in order to avoid the consequences of their actions.

Therefore, we can confirm that a suspect who fakes intellectual disability in order to explain his innocence in a murder is malingering.

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Answer:

true

Explanation:

hope it helps

Answer:On a bicycle trail, the city is painting arrows like the one shown below:

Explanation:Upper pointing arrow with height of 11 and length of 9. Rectangular base of arrow has length of 7 and height of 8. All units are in centimeters.

(a) The equilibrium temperature of the system is 0°C.

(b) There is no unmelted ice when the system reaches equilibrium.

The three ice cubes have a total mass of 3 * 111.0 g = 333 g. The water has a mass of 0.840 kg = 840 g. The specific heat capacity of water is 4.184 J/g°C. The latent heat of fusion of water is 333.55 J/g.

When the ice cubes are added to the water, the ice cubes will absorb heat from the water until they reach 0°C. Once the ice cubes reach 0°C, they will begin to melt. The heat required to melt the ice cubes will come from the water.

The water will continue to lose heat until all of the ice cubes have melted. The total heat required to melt the ice cubes is:

Q = m * Lf

Q = 333 g * 333.55 J/g

Q = 111,476 J

The total heat lost by the water is:

Q = m * c * ΔT

Q = 840 g * 4.184 J/g°C * (21.0°C - 0°C)

Q = 75,056 J

Since the heat lost by the water is equal to the heat required to melt the ice cubes, the equilibrium temperature of the system is 0°C. At 0°C, the water will be in equilibrium with the ice. There will be no unmelted ice when the system reaches equilibrium.

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Answer:

Option A

Explanation:

Nonverbal communications are ambiguous because some times the face expressions (non verbal signals – Sad face or sitting alone gesture of Alejandro) and the verbal signals (communication between Roark and Alejandro) do not match or contradict each other. Some people prefer to believe on their interpretations of the nonverbal  signals as compared to that of the verbal signals

Hence, option A is correct.

The force = 1.334 x 10⁴ N

Gravity is a force that arises because of the attraction between objects with mass.  

The magnitude of this attraction is proportional to the mass of the object.  

The greater the mass of the object, the greater the gravitational force  

Relationships can both be stated in  

Newton's Gravity Law:  

\(\rm F=G.\dfrac{m_1.m_2}{r^2}\)

with F = gravitational force,  N

G = gravitational constant,  6.67 x 10⁻¹¹ Nm²/kg²

m1, m2 = mass of object,  kg

r = distance between two objects.  m

m₁= 1 kg

m₂=2 x 10²⁰ kg

r = 1 x 10³ m

The force acting on the smaller object=The force acting on the larger object(Newton's Third Law)

\(\tt F=6.67\times 10^{-11}\dfrac{1\times 2.10^{20}}{(1\times 10^3)^2}\\\\F=1.334\times 10^4~N\)

When a diesel cycle and Otto cycle work at the same compression ratio, the ideal cycle with the lowest thermal efficiency is  Otto cycle because the area shown in the P-V  graph for the same ratio is more than diesel cycle.

In an engine cylinder the ratio of maximum and minimum volume of the combustion chamber and cylinder is termed as compression ratio.

Hence, When a diesel cycle and Otto cycle work at the same compression ratio, the ideal cycle with the lowest thermal efficiency is  Otto cycle because the area shown in the P-V  graph for the same ratio is more than diesel cycle.

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The platy or sheet-like form that foliated rocks develop serves as a representation of the direction of pressure application. A few examples of rocks with foliated metamorphosed tectonic plates are slate, sandstone, and granite.

Foliated metamorphic rock must grow in a directed force or shear stress environment. When pressure is applied to a parent rock during recrystallization, the platy or extended minerals inside the parent rock become aligned or foliated. The platy and paper structure that foliated rocks take on is a representation of the direction in which pressure is applied. Tectonic plates that were foliated during metamorphism produced the rock types slate, schist, and gneiss. The many different types of foliated metamorphic rocks are classified by grade or quantity of metamorphic rocks, and the type includes slate, phyllite, schist, and gneiss.

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The platy or sheet-like form that foliated rocks develop serves as a representation of the direction of pressure application. A few examples of rocks with foliated metamorphosed tectonic plates are slate, sandstone, and granite.

Foliated metamorphic rock must grow in a directed force or shear stress environment. When pressure is applied to a parent rock during recrystallization, the platy or extended minerals inside the parent rock become aligned or foliated.

The platy and paper structure that foliated rocks take on is a representation of the direction in which pressure is applied. Tectonic plates that were foliated during metamorphism produced the rock types slate, schist, and gneiss. The many different types of foliated metamorphic rocks are classified by grade or quantity of metamorphic rocks, and the type includes slate, phyllite, schist, and gneiss.

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As an energy source, wind is abundant, widely distributed, and renewable. The word you were looking for to complete the sentence is "renewable."

Wind energy is considered a renewable energy source because it is derived from the natural movement of air caused by solar radiation and the Earth's rotation. Wind is constantly generated and replenished by natural processes, making it an ongoing and sustainable source of energy. Unlike fossil fuels, which are finite and non-renewable, wind energy can be harnessed indefinitely without depleting the Earth's resources.

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Answer:

Interpersonal skills

Explanation:

Answer:

The right answer is interpersonal skills

Explanation:

give the other person brainliest they deserve it

nesecitabas ayuda hace 1 hora, todavia la nesecitas?

The completed equation for the process of nuclear fusion is \(^{226}{88}Ra\)  →  \(^{222}{86}Rn\) + \(^{4}_{2}He\).

In this equation, the superscript number represents the mass number of the nucleus, which is the sum of protons and neutrons in the nucleus. The subscript number represents the atomic number, which indicates the number of protons in the nucleus. In the given equation, the initial nucleus is \(^{226}{88}Ra\), which stands for radium-226.

Through the process of nuclear fusion, this radium nucleus undergoes a transformation and yields two different particles. The first product is \(^{222}{86}Rn\), which represents radon-222, and the second product is \(^{4}_{2}He\), which represents helium-4.

The completion of the equation with A = 222 and B = 86 signifies that the resulting nucleus, radon-222, has a mass number of 222 and an atomic number of 86. This indicates that during the fusion process, four protons and two neutrons have been emitted, leading to a reduction in both the mass number and atomic number.

Nuclear fusion is a process in which atomic nuclei combine to form a heavier nucleus, releasing a significant amount of energy. It is a fundamental process that powers stars, including our Sun. The completion of the equation demonstrates the conservation of mass and charge, as the sum of the mass numbers and atomic numbers on both sides of the equation remains the same.

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Answer:

2000 m/s

Explanation:

The speed of a wave is it's frequency * wavelength. In this case, the frequency is 0.25 Hz (waves per second) and the wavelength is 8000m. So the speed of the wave will be 0.25Hz * 8000m which is 2000 meters per second.

A tsunami when hits north California, its speed will be 2000m/s.

The tsunami caused by the movement of tectonic plates at the sea or ocean floor or due to large volcanic activities . These are high energy waves that can destroy everything.

Speed was the pace as well as the direction of an object's movement, whereas speed would be the time rate whereby an object is traveling along a path. In other words, velocity is just a vector, whereas speed would be a scalar value.

In the question, given data is ,

frequency (n) = 0.25 Hz.

Wavelength (λ) = 8000msince

speed of wave  (v) = n.λ

on putting values.    

v = 0.25×8000 =2000m/s

Hence, the speed of the wave is 2000m/s.

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The Earth has a gravitational force that attracts objects with mass towards it. This force acts on the mtc student and pulls his body down. It is true.

Force is an invisible push or pull that acts upon an object. It is a vector quantity, meaning it has both magnitude and direction. Force can be generated by the interaction of two objects, or by the action of a single object on itself. Common examples of force include gravity, friction, and magnetism. Force is an essential part of the scientific study of motion, and is used to describe the relationship between an object’s motion and the amount of energy it possesses. Force can be measured using a variety of instruments, such as a spring scale or a force sensor.

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A white dwarf remains stable in size due to electron degeneracy pressure, which prevents its atoms from collapsing further despite the absence of nuclear fusion reactions.

A white dwarf is a remnant of a low to medium mass star that has exhausted its nuclear fuel and undergone gravitational collapse. As the star's core collapses, its electrons become tightly packed together, leading to electron degeneracy pressure that opposes further compression. This results in a stable size for the white dwarf, where the inward force of gravity is balanced by the outward force of electron degeneracy pressure. Since there are no nuclear fusion reactions to generate heat, the white dwarf eventually cools and dims over time, becoming a cold black dwarf.

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Answer:

3. There would be no sound.

Explanation:

Sound is produced by vibrations that travel through a medium, most commonly through air.

If there is no matter to vibrate (such as in the vacuum of space) then there's no way for a sound wave to be produced.

Thus the answer is option 3. There would be no sound.