the bar moves the instance after the switch is closed, assuming the force of gravity is directed into the paper, what is the height the bar goes to?

A change in temperature frequently causes substances to change phases. Most substances are solid at low temperatures; as the temperature rises, they become liquid; and at still greater temperatures, they become gaseous.

Melting is the conversion of a solid into a liquid (an older term that you may see sometimes is fusion). Solidification is the process where a liquid turns into a solid. The melting point, or the temperature at which a pure substance begins to melt, is a property of that substance. A solid must expend energy to become a liquid. A specific quantity of energy is required by every pure substance in order to transform from a solid to a liquid. This amount is known as the substance's enthalpy of fusion (or heat of fusion).

The complete question is- The diagram shows how states of matter can change when energy is either added or removed.

System before change

System after change

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00000

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00000

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All of these statements below are true EXCEPT

Energy was added to the matter causing the particle movement to increase.

The matter changed states which is a physical change.

The particles in the matter before the change had more energy than after the change.

The particles in the matter before the change had less energy than after the change.

the diagram is attached below.

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The answer is False. A polarized material does not need to have a nonzero net electric charge. Polarization occurs when the positive and negative charges within a material are displaced relative to each other, creating an electric dipole moment.

This can happen in materials such as dielectrics or insulators, which do not conduct electricity. The net electric charge of a polarized material can still be zero, as the overall positive and negative charges remain balanced, but the charges are spatially separated. Polarization plays an important role in phenomena such as capacitance, dielectric constant, and polarization-induced electric fields.

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Answer:

Actually the formulae is S=(u+v/2)t

.TO explain,from average velocity=distance /time

and average velocity is u+v/2

hence using the formular

Average velocity=distance/time

distance will be=average velocity ×time

so S=(u+v/2)t

Given data:

1) Runner jogged 40 m at a slow pace for 40 sec.

2) Stopped for 40 sec.

3) Again funs for 60 m in 20 sec.

sis i love the eren season 1-2-3-4 but the eren season 5?....... i just :')

Answer:

Explanation:

Aaron yogurt supremacy

Answer:

It is destroyed in subduction zones. A Geologic process in which a tectonic plate made of dense lithospheric material melts or falls below a plate made of less-dense lithosphere at a convergent plate boundary

Explanation:

Hope this helps (:

The downtown is 5 miles far away, if the car travels at 10 miles / hour for 0.5 hours.

v = d / t

v = Velocity

d = Distance

t = Time

v = 10 mi / hr

t = 0.5 hr

d = v * t

d = 10 * 0.5

d = 5 mi

Velocity of the car is the rate of change of position of the car. In simple words it can be said as velocity is used to calculate the distance covered in a given amount of time.

Therefore, the downtown is 5 miles far.

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The expected chain length (number of repeating units per chain) that would be formed in the experiment, assuming all initiators initiate chains and all monomers add onto the chains can be calculated using the following formula.

Expected chain length = (Number of moles of monomers used/Number of moles of initiators used) + 1Where,+ 1 denotes the length of the initiator's unit and is added to the average number of monomer units. Hence, it indicates the length of the polymer's first unit.The number of moles of monomers used can be determined as follows

The number of moles of initiators used can be determined as follows:Number of moles of initiators = (Mass of initiators used/Molecular weight of initiators)Example:If the mass of monomers used is 0.05 g and the molecular weight of monomers is 100 g/mol, then the number of moles of monomers used

= (0.05/100) mol

= 5 × 10⁻⁴ molIf the mass of initiators used is 0.01 g and the molecular weight of initiators is 200 g/mol

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There will be a 90-degree phase difference between the first and second waves approximately 0.006014 seconds after sending the second wave.

To calculate the time when there is a 90-degree phase difference between the two waves, we need to determine the time it takes for their phases to differ by 90 degrees.

The phase of a wave can be calculated using the formula:

φ = 2πft + θ

Where:

φ is the phase in radians

f is the frequency of the wave

t is the time in seconds

θ is the initial phase in radians

For the first wave with a frequency of 200 Hz and an initial phase of 60 degrees (converted to radians):

φ1 = 2π(200)t + 60°

For the second wave with a frequency of 180 Hz and an initial phase of 30 degrees (converted to radians):

φ2 = 2π(180)(t + 1.2) + 30°

To find the time when there is a 90-degree phase difference, we can set the difference in phases equal to 90 degrees (converted to radians):

φ2 - φ1 = 90°

Converting to radians:

2π(180)(t + 1.2) + 30° - (2π(200)t + 60°) = 90°

Simplifying the equation:

2π(180)(t + 1.2) + 30° - 2π(200)t - 60° = 90°

Rearranging terms:

2π(180)(t + 1.2) - 2π(200)t = 120°

Simplifying further:

2π(180)(t + 1.2 - 200t) = 120°

2π(180)(1.2 - 199t) = 120°

Solving for t:

1.2 - 199t = 120° / (2π(180))

1.2 - 199t = 0.003296... (approximately)

-199t = 0.003296 - 1.2

-199t = -1.196704...

t = (-1.196704...) / -199

t ≈ 0.006014... seconds

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Answer:

The correct option is;

d) All of the above

Explanation:

a) In an electric circuit through which electric current flows, it is due to the electric charges which can be the negatively charged electrons or the positively charged protons

b) Voltage is the potential difference that results in current flowing through the circuit, therefore, the voltage is applied across the circuit through which current flows

c) The voltage which is the electric potential difference is the change in potential energy in joules of a given system due to the movement of a test charge (in Coulombs) between points in the electric field, ΔE, divided by the value of the test charge, 'q'

V = ΔE/q

Therefore, all of the above are correct.

Answer:

a) Alpha rays because an alpha ray involves a Helium nucleus - with an atomic number of two and a mass number of 4

Beta rays would be next which involve an electron which is thousands of times less massive than an alpha ray

The maximum time constant for this component is: 0.974 m/sec

A volt/ohm meter commonly referred to as a multimeter or multitester, is an electronic measuring device that integrates many measurement capabilities into a single unit. A standard multimeter could include capabilities to measure voltage, current, and resistance, among other things.

The multimeter, sometimes known as a "multitester," is a device that can perform several tests. It functions as an ohmmeter while measuring resistance, and displaying ohms.

Given that,

DC resistance ,

L = 100 mh

R = 102.6 Ω

Now, time constant, T = L/R

or, T = (100/ 102.6) m/sec

or, T = 0.974 m/sec

Thus, change of current will occur but this is very less because of the temperature difference.

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Answer:

The maximum magnitude of their resultant is 14 units, and the minimum is 2 units

Explanation:

Resultant Vectors

When two or more vectors are added or subtracted, the resultant vector can be found by considering their magnitudes and directions.

Two vectors applied to the same point can produce a result that can vary from being completely collaborative or completely opposite.

If two vectors act in a collaborative form, their magnitudes are added and the result has the maximum possible magnitude. If they act in opposite directions, the result has the minimum possible magnitude.

Thus, being 6 and 8 units the magnitudes of the vectors, the maximum magnitude of their resultant is 14 units, and the minimum is 2 units.

Las diferencia de potencial indica el valor de la fuerza o potencial eléctrico entre dos puntos, lo cual permite llevar electricidad a diferentes areas.

La diferencia de potencial indica la fuerza ejercida por una corriente eléctrica entre dos puntos equidistantes.

La diferencia de potencial se mide en Volts, es decir, en voltaje (V), el cual indica la fuerza de la energía eléctrica que se puede transmitir entre dos puntos.

La diferencia de potencial nos permite tener energía en una vivienda o en una industria, como asi tambien usar un artefacto que requiera de electricidad para funcionar.

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Answer:

Solar technologies convert sunlight into electrical energy either through photovoltaic (PV) panels or through mirrors that concentrate solar radiation. This energy can be used to generate electricity or be stored in batteries or thermal storage.

Simpler terms:

The two main forms of solar energy transformation technologies are photovoltaic (electricity) and thermal (heat).

Answer:

Electrical energy to kinetic energy

Explanation:

The transformation that occurs when turning on a fan is electrical energy to kinetic energy.

The force exerted by the rain on the patch is 0.231 N.

The force exerted by the raindrops on the patch can be found using the formula; F = m × v

where F will be the force, m will be the mass of each raindrop, and v is velocity of each raindrop.

The mass of each raindrop is given as 1.1 grams, which can be converted to kilograms by dividing by 1000;

m = 1.1 g / 1000 = 0.0011 kg

The velocity of each raindrop is given as 6 m/s.

Now, we need to determine the number of raindrops that strike the patch in one second. If the patch is receiving 35 raindrops per second, then the number of raindrops that strike the patch in one second is also 35.

Therefore, the total force exerted by the rain on the patch is;

F = m × v × n

where n will be the number of raindrops per second.

Plugging in the values, we get;

F = 0.0011 kg × 6 m/s × 35

F = 0.231 N

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Answer:

Heat

Explanation:

Because chemical energy is stored, it is a form of potential energy. When a chemical reaction takes place, the stored chemical energy is released. Heat is often produced as a by-product of a chemical reaction – this is called an exothermic reaction.

Hope this helped.

Explanation:

Answer Should be B.

Its in Form of Heat.

When the net force of a moving object suddenly becomes zero and remains zero, the object will continue at a constant velocity without any changes in its speed or direction.

The correct answer is option C.

When the net force of a moving object suddenly becomes zero and remains zero, the object will continue at a constant velocity. This is described by Newton's first law of motion, also known as the law of inertia.

According to Newton's first law, an object in motion will continue moving at a constant velocity in a straight line unless acted upon by an external force. In this case, when the net force becomes zero, there are no external forces acting on the object to change its motion.

If the object was initially moving at a constant velocity, it will continue moving at that same velocity. If it was accelerating or decelerating before the net force became zero, it will maintain its current velocity without any further changes.

The reason for this behavior is that the object has no force acting on it to cause an acceleration or deceleration. Therefore, it will not experience any change in its speed or direction.

Therefore, from the given options the correct one is option C.

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The temperature at which water freezes is the same as the temperature at which it turns into ice.

This temperature is commonly referred to as the freezing point of water. At this point, water becomes solid and changes into ice because water molecules have lost their kinetic energy, and their vibrations decrease to the point where they solidify into a crystalline structure.

The freezing point of water is an essential characteristic as it is the temperature at which water undergoes the physical change of state from a liquid to a solid. The freezing point of water is 0°C or 32°F, at standard pressure (1 atm). When the water cools down below the freezing threshold, it begins to solidify.

Therefore, At this point, water molecules form a crystalline structure and become ice.

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Answer:

Explanation:

Formula

d = r * t

r = rate

t = time

d = distance

Givens

d = ?

r = 121 km/hr

t = 3 hours 20 minutes. The units have to be the same. If one part of the time is in hours, then both should be in hours..

20 / 60 = 1/3 of an hour

t = 3 1/3 hours = 10/3 hours.

Solution

d = 121 km / hour * 10/3 hours

d = 1210 /3

d = 403.33 km

The distance travelled is 403.33 km

If the temperature of the dielectric material between the plates of a parallel-plate capacitor increases, the capacitance of the capacitor increases.

Given data ,

Temperature causes the dielectric material's permittivity to rise. The permittivity, which measures a material's capacity to store electrical energy in an electric field, is inversely correlated with a capacitor's capacitance.

The molecules in the dielectric material start to vibrate more vigorously as their temperature rises, which raises the substance's polarizability. The term "polarizability" refers to the ease with which an electric field may shift electrons in a material, and it is correlated with the permittivity of the substance.

Hence , as the polarizability and permittivity of the dielectric material increase with temperature, the capacitance of the capacitor increases as well.

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Answer:

El castigo de Juan fue justo y a la vez injusto.

Explanation:

Adjetivos opuestos: justo - injusto

La oración significa que el que castigo era merecido, sin embargo, puede ser algo exagerado por lo tanto algo injusto. Describiendo la situación con adjetivos con significado opuesto al mismo tiempo, mediante un conector de simultaneidad que es y a la vez.

Answer:

The answers to your questions are given below

Explanation:

A. Definition of momentum.

Momentum of an object can be defined as the product of the mass of the object and its velocity. Mathematically, it expreessed as:

Momentum = mass x Velocity

From the above equation, we can derive the SI unit of momentum as follow:

Mass is measured in Kilogram (Kg)

Velocity is measured in meter per second (ms¯¹).

Momentum = mass x Velocity

Momentum = Kg x ms¯¹

Momentum = Kg•ms¯¹

Therefore, the SI unit of momentum is Kg•ms¯¹.

Bi. Determination of the force of the body from O to A.

Mass (m) = 5 kg

Velocity (v) = 40 ms¯¹

Time (t) = 2 secs.

Force (F) =?

Next, we shall determine the acceleration of the body.

Acceleration (a) = Velocity (v) /Time (t)

a = v /t

Velocity (v) = 40 ms¯¹

Time (t) = 2 secs.

Acceleration (a) =.?

a = v/t

a = 40/2

a = 20 ms¯²

Now, we can obtain the force as follow:

Mass (m) = 5 kg

Acceleration (a) = 20 ms¯²

Force (F) =?

Force (F) = mass (m) x Acceleration (a)

F = ma

F = 5 x 20

F = 100 N

Therefore, the force of the body from O to A is 100 N.

Bii. Determination of the force of the body from B to C.

Mass (m) = 5 kg

Velocity (v) = 40 ms¯¹

Time (t) = 10 – 6 = 4 secs.

Force (F) =?

Next, we shall determine the acceleration of the body.

Acceleration (a) = Velocity (v) /Time (t)

a = v /t

Velocity (v) = 40 ms¯¹

Time (t) = 4 secs.

Acceleration (a) =.?

a = v/t

a = 40/4

a = 10 ms¯²

Now, we can obtain the force as follow:

Mass (m) = 5 kg

Acceleration (a) = 10 ms¯²

Force (F) =?

Force (F) = mass (m) x Acceleration (a)

F = ma

F = 5 x 10

F = 50 N

Therefore, the force of the body from B to C is 50 N.

Higher high water
Lower high water
Higher low water
Lower low water

In a mixed-tide system, the water levels exhibit two high tides and two low tides within a tidal cycle. The ranking of the water levels according to height is as follows:

Higher high water: This is the highest water level observed during the tidal cycle. It occurs when the gravitational forces of the Moon and the Sun align to produce a stronger tidal bulge. It typically happens around the time of a new moon or a full moon.

Lower high water: This is the second-highest water level observed during the tidal cycle. It occurs when the gravitational forces of the Moon and the Sun are not aligned, resulting in a weaker tidal bulge. It typically happens around the time of the first quarter and third quarter moon phases.

Higher low water: This is the higher of the two low water levels observed during the tidal cycle. It occurs when the gravitational forces of the Moon and the Sun produce a weaker tidal trough. It typically happens between the two high tides.

Lower low water: This is the lowest water level observed during the tidal cycle. It occurs when the gravitational forces of the Moon and the Sun are not aligned, resulting in a stronger tidal trough. It typically happens between the higher low water and the next high tide.

The ranking of water levels in a mixed-tide system, from highest to lowest, is: higher high water, lower high water, higher low water, lower low water

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