the period of motion of an object-spring system is t = 0.570 s when an object of mass m = 212 g is attached to the spring. (a) find the frequency of motion in hertz.

It is correctly interpreted as the Gravitational redshift .

Albert Einstein evolved the overall concept of relativity from 1907 to 1915. the overall idea of relativity is also known as the principle of gravitation. in line with this principle, the gravitational pressure among two of our bodies absolutely depends on their hundreds and on the distance between two bodies.

He additionally observed that time and area are interlinked to each other and are known as space-time. Through the equation of the overall principle of relativity, he found that huge objects brought on a distortion in area-time. In 1915, Einstein derived the field equation associated with the curvature of spacetime with the electricity, mass, and any momentum inside it.

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The conservation of momentum and impulse are  the physics principle of the measure the force of the heart's contraction    

The momentum is defined as the product of the mass of the body by its speed. If we make the system isolated, the moment or quantity of movement must be conserved since there are external forces.

                P = mv

               Δp = p_f - p₀

Where p is the momentum, m and v the mass and velocity of the body

In this case we consider the body as an isolated system and if it is immobile, zero velocity, the initial momentum is zero

               p₀ = 0

When the heart pumps the room it goes out in one direction and the body recoils in the opposite direction, so the final momentum is

              p_f = m v₁ - (M-m) v₂

Where m is the amount of blood pumped, (M-m) the remaining mass of the body, v₁ and v₂ the velocity of the blood and the body

If the body is isolated, the momentum will be preserved

               p_f = p₀

               m v₁ - (M-m) v₂ = 0

               v₁ = \(\frac{M-m}{m} \ v_2\)

The To measure the force of the contraction of the heart we use that the impulse is equal to the variation of the momentum

                 I_ {avg} = F t = ΔP

                  F = \(\frac{\Delta p}{t}\)

Where t is the time and is measured with a stopwatch with the pulsations of each patient.

                  F = \(\frac{m \ v_1 - (M-m) \ v_2 }{t}\)

The construction of a system for the measurement must consist of spring or some means of oscillation and use the movement to measure the recoil speed of the patient which is small.

In conclusion, we use the conservation of momentum and impulse are the  physics principle of the measure the force of the heart's contraction    .

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The kinetic energy of the ball the instant it hits the floor is 100J.

Energy is a unit used to describe how much work a body can perform. It cannot be created or gotten rid of. Energy comes in a variety of forms, including thermal, electrical, nuclear, electrical fusion, and electrical. Energy has the capacity to take on different forms.

The ball's potential energy when it is on a shelf is 100 J.

The ball's potential energy from gravity begins to transform into kinetic energy as it begins to fall. Additionally, as the ball falls, its kinetic energy will rise and its potential energy will fall.

The ball's potential energy due to gravity is completely transformed into kinetic energy when it strikes the ground.

Therefore, the ball has 100 J of kinetic energy when it strikes the ground.

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Volcanism is more likely on a planet that has high internal temperatures.

Volcanism refers to the eruption of molten rock (magma) onto the surface of a planet or moon. It occurs when there is a sufficient amount of heat and pressure within the planet's interior to melt rocks and form magma chambers.

Option B states that a planet with high internal temperatures is more likely to experience volcanism. This is because high internal temperatures provide the necessary energy to melt rocks and generate magma. The heat can arise from various sources, such as radioactive decay of elements within the planet, residual heat from its formation, or ongoing geothermal activity.

Option A (being struck often by meteors and solar system debris) can potentially cause localized heating and trigger volcanic activity in specific regions, but it is not a general factor that determines the likelihood of volcanism on an entire planet.

Option C (not having an atmosphere or oceans) does not directly influence the occurrence of volcanism. While the presence of water can contribute to volcanic activity through processes like subduction and melting of the Earth's mantle, volcanism can still occur in the absence of oceans or an atmosphere.

Option D (being closer to the Sun) primarily affects the surface temperature of a planet but does not directly correlate with its internal heat and the likelihood of volcanism.

Therefore, option B, which states that a planet with high internal temperatures is more likely to have volcanism, is the most accurate choice.

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Complete question:

Volcanism is more likely on a planet that

A) is struck often by meteors and solar system debris.

B) has high internal temperatures.

C) doesn't have an atmosphere or oceans.

D) is closer to the Sun.

Since there is less friction in this situation, we can say that the end speed will be 12.8 m/s because the complete energy has been conserved.

English definition of frictionless: devoid of friction (= the force that prevents an object from moving through or across something): The the ends of the bones in the joints are covered by cartilage, which allows for almost frictionless movement.

The term "frictionless surface" refers to a surface type where the force acting on any object that makes it challenging for the object to slide is now almost zero or negligible, i.e., where there is no resistance between the surface and substance designed to allow the object to slide as well as move freely without any friction.

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Electric field is a physical field occupied by a charged particle on another particle in its surrounding. It is denoted by E. It is an invisible field.

a) Yes, an object with charge q experiences force from an electric field of intensity E. This force still acts even when the item is stationary because, as we can see, it is independent of the speed of the object.

b) No, the magnetic force produced by an object with charge q and speed v is equal to the magnetic force produced by an object with charge q and speed v in a magnetic field of intensity of B.

c) The electric force is still very strong. Point (a) shows that the electric force is still present and unaffected by the charge's speed.

d) The magnetic force F is no longer zero because the object is now moving at a specific speed v.

e) The answer is that the electric field does exert a force on the charges moving along the wire because it does so constantly to a charge.

f) Because a magnetic field always exerts a force on a moving charge, the charges flowing through the wire are being affected by the magnetic field. This is because the current in the wire is made up of charges travelling at a constant v.

g) Since an electric field exerts force and electrons have an electric charge, this argument makes sense. As a result, an electric charge and, by extension, an electron beam are always under the influence of an electric field.

h) The magnetic force is constant since the speed of the electrons in the beam is constant (v). V is not equal to zero, hence the magnetic field is not zero either.

As a result, an object with charge q experiences a force from an electric field of intensity E. This force still acts even when the item is stationary because, as we can see, it is independent of the speed of the object.

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Given that,

Volume of gas, V₁ = 200 mL

Initial temperature, T₁ = 27°C

Final temperature, T₂ = -33°C

To find,

New volume of the gas.

Solution,

Initial temperature, T₁ = 27°C = 300 K

Final temperature, T₂ = -33°C = 240 K

Let V₂ is the new volume.

The relation between volume and temperature is given by :

\(\dfrac{V_1}{T_1}=\dfrac{V_2}{T_2}\\\\V_2=\dfrac{V_1T_2}{T_1}\\\\=\dfrac{200\times 240}{300}\\\\=160\ mL\)

Hence, the volume will be 160 mL.

Answer:

2+ charge

Explanation:  The alkaline earth metals have two valence electrons in their highest-energy orbitals (ns2). They are smaller than the alkali metals of the same period, and therefore have higher ionization energies. In most cases, the alkaline earth metals are ionized to form a 2+ charge

Hope this helps, have a great day :)

The car was traveling at approximately 67.2 km/h when the brakes were first applied.

This can be determined by using the equation s = ut + 0.5at^2, where s is the distance traveled before the brakes are applied (60 m), u is the initial velocity (in km/h), a is the deceleration (20 m/s2) and t is the time taken to come to a stop.

Rearranging the equation to solve for u gives u = (2s/at)^(1/2), so the initial velocity is (2 x 60)/(20 x 1)^(1/2) = 67.2 km/h.

To further explore this topic, you could look into how the deceleration affects the stopping distance of the car. In particular, you could investigate how the deceleration affects the braking distance, which is the total distance the car travels before it comes to a complete stop.

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The amount of energy/work necessary to assemble two charges of 2.0 × 10⁻⁶ c at a distance of 2 cm is 90 J.

To calculate the necessary amount of work to assemble two different charges, we should use Coulomb's law formula:

  W = (kq₁q₂)/d²

where k is Coulomb's constant, q1 and q2 are the charges, and d is the distance between the charges.

From the question, we know that both q₁ and q₂ are 2.0 × 10⁻⁶ C; while the distance between the two is 2 cm or 0.02 m.

Plug these values into the formula:

  W = (9.0× 10⁹ Nm²/C)(2.0 × 10⁻⁶ C)(2.0 × 10⁻⁶ C)/(0.02)² m

      = 90 J

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Answer:

B. Use oxygen to convert a fuel to heat and light energy.

What is combustion?

Combustion is a chemical process in which a substance reacts rapidly with oxygen and gives off heat. The original substance is called the fuel, and the source of oxygen is called the oxidizer.

The fuel can be a solid, liquid, or gas, although for airplane propulsion the fuel is usually a liquid.

For example, charcoal is combining with oxygen.

Combustion is commonly called burning, and the substance that burns is usually referred to as fuel.

To summarize,

For combustion to occur three things must be present:

As a result of combustion, exhausts are created and heat is released. You can control or stop the combustion process by controlling the amount of the fuel available, the amount of oxygen available, or the source of heat.

Therefore,

Combustion is when you use oxygen to convert a fuel to heat and light energy.

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Main AnswerThe fraction of the block submerged can be calculated as follows;Let Vblock be the volume of the block, and let Vdisp be the volume of the block that is displaced by the liquid.Using Archimedes principle, we can find the fraction, VdispVblock, of the block submerged as follows:VdispVblock=density of the objectdensity of the liquid...Equation (1)

ExplanationWe are given the density of the object and the density of the liquid. We know that the volume of the liquid displaced is equal to the volume of the object that is submerged in the liquid.We can use the following equation to find the volume of the block that is submerged in the liquid:Volume of the block submerged = Vblock x VdispVblock...Equation (2)Since the density of the object is 0.8 g/cm3, and the density of the liquid is 2.7 g/cm3, we can find the fraction, VdispVblock, of the block submerged by substituting the values in equation

(1).Therefore;VdispVblock=0.8 g/cm32.7 g/cm3=0.296...Substituting this value in equation (2), we can find the volume of the block submerged:Volume of the block submerged = Vblock x 0.296...We can also write this as:Vdisp = Vblock x 0.296...Now, we know that the volume of the liquid displaced is equal to the volume of the block that is submerged in the liquid. Therefore, we can write:Vdisp = Vsubmerged = Vblock x 0.296...Hence, the fraction of the block submerged is 0.296 or 29.6%. Therefore, the main answer is as follows;The fraction, VdispVblock, of the block submerged is 0.296 or 29.6%.

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Answer:

334 pennies

Explanation:

100+100+100=300

3.00$

+0.34

their is 324 pinnies in 3.24 and 334 pinnies in 3.34

A. The estimate for the age of the universe based on the provided data is approximately 0.01386 gigayears (Gyr).

B. Using Hubble's constant to determine the age of the universe tends to overestimate the actual age.

A. To compute an estimate for the age of the universe using the provided data, we can utilize the Hubble constant, \(\rm \( H \)\), which relates the velocity and distance of objects in the universe.

The Hubble constant is defined as \(\( H = \frac{v}{d} \)\), where \(\( v \)\) represents the velocity and \(\( d \)\) represents the distance.

In this case, we are given the mean value of the Hubble constant, \(\rm \( \bar{H} = 72.1861 \)\), which is the sample mean from measurements of 36 Type Ia supernovae.

The age of the universe, \(\( t \)\), can be estimated using the reciprocal of the Hubble constant:

\(\rm \[ t = \frac{1}{\bar{H}} \]\)

Substituting the given value, we have:

\(\[ t = \frac{1}{72.1861} \]\)

Now we can calculate the result:

\(\rm \[ t \approx 0.01386 \, \text{Gyr} \]\)

Therefore, the estimate for the age of the universe based on the provided data is approximately 0.01386 gigayears (Gyr).

B. Using Hubble's constant to determine the age of the universe tends to overestimate the actual age. This is due to the method assuming a linear expansion of the universe, while in reality, the expansion is accelerating, leading to a faster current rate of expansion.

Consequently, the estimated age obtained using Hubble's constant represents the maximum possible age rather than the actual age of the universe.

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Your question is incomplete, but most probably your full question was,

Supernova data from Freedman et al. Supernova ID Velocity (km/sec) 9065.00 12012.00 15055.00 16687.00 9801.00 4124.00 13707.00 7880.00 22426.00 7765.00 4227.00 30253.00 18212.00 5935.00 10696.00 13518.00 17371.00 12871.00 5434.00 23646.00 26318.00 18997.00 21190.00 15567.00 15002.00 8604.00 14764.00 5424.00 7241.00 8691.00 4847.00 10715.00 14634.00 6673.00 9024.00 10446.00 Distance (Mpc) 134.70 158.90 198.60 238.90 117.10 56.00 183.90 121.50 274.60 102.10 58.00 467.00 262.20 88.60 151.40 202.50 235.90 176.80 77.90 309.50 391.50 280.10 303.40 236.10 215.40 119.70 202.30 71.80 96.70 127.80 66.80 149.90 185.60 82.40 136.00 132.70 H; (km/sec/Mpc) 67.30 75.60 75.80 69.80 83.70 73.70 74.50 64.80 81.60 76.10 72.80 64.70 69.40 67.00 70.60 66.70 73.60 72.70 69.70 76.30 67.20 67.80 69.80 65.90 69.60 71.90 72.90 75.60 74.90 68.00 72.50 71.50 78.80 Ô i 2.30 3.10 2.80 2.80 3.40 2.90 3.10 2.20 3.40 2.70 2.40 2.40 2.90 2.10 2.40 2.30 2.60 2.60 2.40 2.60 3.10 2.80 2.40 2.10 2.40 2.90 2.70 3.10 2.60 2.70 2.50 2.60 2.70 2.80 2.50 2.70 80.90 66.30 78.70 Table 1: Velocity and distance measurements for 36 type la supernovae.

Data from Freedman, Wendy L., et al. “Final results from the Hubble Space Telescope key project to measure the Hubble constant.” The Astrophysical Journal 553.1 (2001): 47. 3. The following parts have you apply and interpret your results.

(a) Compute an estimate for the age of the universe from the data provided.

(b) Do you expect this is an underestimate, an overestimate, or neither? Explain why in 1-2 sentences.

The correct option among the answer choice given above which reflects the use of chunking to remember items to pack for a trip is:

Making a list of items to pack organized by where each item is in your room

Option c is the correct answer

A trip simply refers to a relatively short journey. It is called traveling when there is movement from one place to another usually to a long distant location

So therefore, the correct option among the answer choice given above which reflects the use of chunking to remember items to pack for a trip is:

Making a list of items to pack organized by where each item is in your room

Option c is the correct answer

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Answer:

C

Explanation:

Answer:

THEY HAVE THE SAME VOLTAGE

The conducting device that produces a large current in order to generate a strong magnetic field is called an electromagnet. This device often uses a capacitor to help regulate the flow of electricity and enhance the strength of the magnetic field.

A conducting device that produces a large current in order to generate a strong magnetic field is called an electromagnet (option d). An electromagnet is a type of magnet in which the magnetic field is produced by an electric current.

The magnetic field disappears when the current is turned off. A capacitor is used to store an electric charge, while a battery, resistor, and transformer have different functions in electrical circuits.

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Answer:

Yes, in case of uniform velocity

Explanation:

This is the case of uniform velocity. If a body covers equal displacement in equal intervals of time, then the velocity of a body is said to be ‘Uniform Velocity’. It meas that the velocity of a body remains constant during the motion and it does not change.

Since, acceleration is defined as the rate of change of velocity.

Therefore, if there is no change in velocity or in other words the change in velocity is zero, then the acceleration is also zero.

a = ΔV/t = 0/t

a = 0 m/s²

So, the acceleration of the body is 0 m/s², but it has a uniform velocity

Hence, it is possible for an object that, object with zero acceleration have velocity, which is the case case of uniform velocity.

Answer: .86

Explanation:

The axial resistance of an axon is calculated using the formula R = ρL/A, where ρ is the resistivity, L is the length, and A is the cross-sectional area. In this case, the axial resistance is 11.28 MΩ.

The resistance along the axon is calculated using the following formula:

R = ρL/A

where:

R is the resistance in ohms

ρ is the resistivity in ohms per meter

L is the length in meters

A is the cross-sectional area in meters squared

In this case, we have:

ρ = 1.6 x 107 Ω.m

L = 0.5 mm = 0.0005 m

A = πr² = π(5 x 10-6)² = 7.854 x 10-13 m²

Therefore, the resistance is:

R = ρL/A = (1.6 x 107 Ω.m)(0.0005 m) / (7.854 x 10-13 m²) = 11.28 MΩ

Therefore, the axial resistance of the axon is 11.28 MΩ.

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At an atomic level, electrostatics is responsible for most of the physical phenomena that we encounter in our everyday life. Every object we see around us, such as chairs, buildings, and people, are made up of atoms, and every atom has electrons that are negatively charged, protons that are positively charged, and neutrons that have no charge.

Electrostatics is the study of electric charges at rest and of the forces and fields associated with these charges. Electrons are held in atoms by the attraction of the positive nucleus for the negative charge of the electrons. This attraction is known as electrostatic force. The protons in the nucleus are also held together by electrostatic forces, which are much stronger than those that bind electrons to the nucleus.
The forces between charged objects are governed by Coulomb's Law. This law states that the force between two charged objects is proportional to the product of their charges and inversely proportional to the square of the distance between them. If the charges have the same sign, the force is repulsive; if they have opposite signs, the force is attractive.
Electrostatic forces play an important role in many physical phenomena, such as the attraction of dust particles to a TV screen, and the Van de Graaff generator, which uses electrostatic forces to build up very high voltages.

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The minimum constant acceleration that the aircraft requires to airborne is 2.58 m/s². The result is obtained by using the equation in uniformly accelerated motion.

A uniformly accelerated straight motion is a motion of an object moving with acceleration or deceleration in a straight line.

The equations apply in horizontal dimension are

v₁ = v₀ + at

v₁² = v₀² + 2ax

x = v₀t + ½ at²

Where

An aircraft has a liftoff speed of 117 km/h.

Find the minimum constant acceleration of the aircraft to be airborne after a takeoff run of 205 m!

The aircraft moves from rest. It means v₀ = 0.

We change the unit of speed to m/s.

v₁ = 117 km/h

v₁ = 117 × 1000 × 1/3600 m/s

v₁ = 32.5 m/s

The minimum acceleration can be calculated using one of the equations above.

v₁² = v₀² + 2ax

(32.5)² = 0 + 2a(205)

(32.5)² = 410a

a = 1056.25/410

a = 2.58 m/s²

Hence, the aircraft requires a minimum acceleration of 2.58 m/s² to airborne after taking off.

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Answer:

\(16.25^{\circ}\)

Explanation:

R = Horizontal range of projectile = 75 m

v = Velocity of projectile = 37 m/s

g = Acceleration due to gravity = \(9.81\ \text{m/s}^2\)

Horizontal range is given by

\(R=\dfrac{v^2\sin2\theta}{g}\\\Rightarrow \theta=\dfrac{\sin^{-1}\dfrac{Rg}{v^2}}{2}\\\Rightarrow \theta=\dfrac{\sin^{-1}\dfrac{75\times 9.81}{37^2}}{2}\\\Rightarrow \theta=16.25^{\circ}\)

The angle at which the arrow is to be released is \(16.25^{\circ}\).

Answer:

(1) the total momentum is 275 kgm/s

(2) The momentum of each ball changes, and the total momentum stays the same.

(3) The mass of the second object is 3.5 kg

Explanation:

(1) In a closed system the total momentum is constant, it never changes.

For the given momentums, the total momentum is given as;

Total momentum = 110 kgm/s + 65 kgm/s + 100 kgm/s = 275 kgm/s

(2) Given;

Initial momentum of the ball at rest, P = mv

where;

m is mass of the ball = 1 kg

v is velocity of the ball = 0 (at rest)

P = 1 x 0 = 0

Initial momentum of the ball in motion = 24 kgm/s

The total momentum of the system = 0 + 24 kgm/s = 24 kgm/s

Thus, the total momentum of the system remains the same while the momentum of each ball changes after collision, because the ball at rest had zero momentum at initial but changed to 24kgm/s after collision.

The momentum of each ball changes, and the total momentum stays the same.

3.

mass of first object m₁ = 1.5 kg

common velocity of both objects after collision, v = 50 m/s

total momentum of the system, P = 250 kgm/s

let the mass of the second object = m₂

v(m₁ + m₂) = P

v(m₁ + m₂) = 250

50(1.5 + m₂) = 250

1.5 + m₂ = 250 / 50

1.5 + m₂ = 5

m₂ = 5 - 1.5

m₂ = 3.5 kg

Answer:

Quick check: D, A, C, D, C

Explanation:

Answer: (C) +1

Explanation:

Neutrons have no charge, so we can ignore them in this problem. Protons have a 1+ charge, and electrons have a 1- charge. So, the total charge is 10(+1) + 9(-1) = +1.

The mass and energy of the wood before burning would be equal to the energy and matter of the ash, soot, heat and light after burning.

The law of conservation of energy states that energy can neither be created nor destroyed but can be transformed from one form to another.

While burning of wood, the chemical energy in the wood is released as heat because of the chemical reaction of wood and oxygen.

This type of chemical reaction is called combustion and it requires oxygen. Combustion converts the stored chemical energy in the wood into heat and light energy.

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The intermolecular forces present in water include hydrogen bonding and dipole-dipole interactions.

Water is a polar molecule, meaning it has a positive and a negative end due to an uneven distribution of electron density. This polarity gives rise to intermolecular forces that hold water molecules together.

One of the intermolecular forces present in water is hydrogen bonding. Hydrogen bonding occurs when a hydrogen atom, which is covalently bonded to an electronegative atom (in this case, oxygen), is attracted to another electronegative atom (such as oxygen or nitrogen) in a different molecule. In water, the oxygen atom of one water molecule forms a hydrogen bond with a hydrogen atom of a neighboring water molecule. Hydrogen bonding is a strong intermolecular force and contributes to many of the unique properties of water, such as its high boiling point and surface tension.

In addition to hydrogen bonding, water also exhibits dipole-dipole interactions. Dipole-dipole interactions occur between the positive end of one polar molecule and the negative end of another polar molecule. In water, the positive hydrogen end of one water molecule is attracted to the negative oxygen end of a neighboring water molecule. These dipole-dipole interactions are weaker than hydrogen bonds but still contribute to the overall intermolecular forces present in water.

Other intermolecular forces, such as ion-dipole interactions and London dispersion forces, are not as significant in water compared to hydrogen bonding and dipole-dipole interactions. Ion-dipole interactions occur between an ion and the charged end of a polar molecule, while London dispersion forces arise from temporary fluctuations in electron distribution. While these forces may exist in other substances, they play a relatively minor role in the intermolecular forces of water.

In conclusion, the intermolecular forces present in water are primarily hydrogen bonding and dipole-dipole interactions. These forces contribute to the unique properties and behavior of water as a liquid.

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Answer:Each method of dating has constraints around its use and effectiveness. Not all methods are well-suited for each situation – and sometimes it is just not possible to use a particular dating method.

Examples of some of the constraints of using a dating method include:

the size of the sample

the type of sample

contamination of the sample

the type of associated geo-archaeological materials

the need to minimise destructive testing

the chronologies involved

Explanation:

The exact charge of the other piece is -3C.

Since the object had a charge of -6 C, the total charge of the two pieces must still be -6 C after breaking. If one piece has a charge of -3 C, then the other piece must have a charge of -6 C - (-3 C) = -6 + 3 = -3 C.

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Answer:

Velocity

Explanation:

Objects in motion usually have a speed which is scalar or velocity which is a vector.

A scalar quantity is one with magnitude but has no directional attribute.

A vector quantity is one with both magnitude and directional attribute.

Speed is a scalar quantity that describes the magnitude of motion a body accrues.

Velocity is a vector quantity that describes both the magnitude of motion and the direction of motion in a body.