In a pendulum, a continuous change occurs between kinetic and
potential
electromagnetic
thermal
mechanical

Answer:

the anwser is atp

Explanation:

To move substances against a concentration or an electrochemical gradient the cell must use energy. This energy is harvested from ATP that is generated through cellular metabolism. Active transport mechanisms, collectively called pumps or carrier proteins work against electrochemical gradients.

The energy for passive transport comes from the gradient itself, in which transfer of a solute from high electrochemical potential to low take place.

The passive transport is the shifting or transfer of a solute from a place where the electrochemical potential is high to a place where the electrochemical potential is low.

Energy require for passive transport-

Thus, the energy for passive transport comes from the gradient itself, in which transfer of a solute from high electrochemical potential to low take place.

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Answer:

2.5A

Explanation:

We know the relation :

V = IR

By using the formula,

Answer :-

Explanation :-

As per the provided information in the given question, we have been given that the Potential Difference is 30 Volt . The Resistance is given as 12 Ohm . And, we have been asked to calculate the Current of the Device.

For calculating the Current , we will use the Formula :-

[tex] \bigstar \: \: \: \boxed { \sf{ \: Current \: = \: \dfrac{Potential \: Difference}{Resistance} \: }} [/tex]

Therefore , by Substituting the given values in the above Formula :-

[tex] \dag \: \: \: \sf { Current \: = \: \dfrac{Potential \: Difference}{Resistance} } [/tex]

[tex] \longmapsto \: \: \: \sf { Current \: = \: \dfrac{30}{12} } [/tex]

[tex] \longmapsto \: \: \: \textbf {\textsf {Current \: = \: 2.5 }} [/tex]

Hence :-

[tex]\underline {\rule {180pt} {4pt}} [/tex]

The usage of the wet bulb thermometer is important to measure the relative humidity or the air.

It should be noted that air can be saturated with different amount of water vapors according to its temperature.

The percentage of water vapor with the amount of water at the temperature is the relative humidity. Based on the question, the salad oil is important rather than using water since oil doesn't evaporate.

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There is no value of c such that the infinite series converges.

Convergence is a characteristic of infinite series, in which a sum tends to be a given number when n tends to +∞.

In this question we must prove for which values of c the infinite series may converge.

There are different criteria to prove whether a given series converges or not, one of the most used criteria is the ratio criterion, which states that:

[tex]r = \frac{a_{k+1}}{a_{k}}[/tex], where the series converges if and only if r > 1. (1)

If we know that [tex]a_{k} = k\cdot \ln c[/tex], then the rational formula is:

[tex]r = \frac{(k+1)\cdot \ln c}{k\cdot \ln c}[/tex]

[tex]r = 1 + \frac{1}{k}[/tex]

We notice that resulting expression does not depend on c and is greater than 1. Therefore, there is no value of c such that the infinite series converges. [tex]\blacksquare[/tex]

If [tex]c[/tex] is a positive real number and [tex]a_{k} = k\cdot \ln c[/tex], for what values of [tex]c[/tex], if any, does the infinite series [tex]\sum_{k=1}^{\infty} a_{k}[/tex] converge?

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There is no values of c, for  the infinite series ∑k=1[infinity]ak to be converge when c is a positive real number.

The infinite series is the sum of addition of a sequence in which the number of terms present are infinite.

[tex]a_1+a_2+a_3....+a_n[/tex]

Here, ([tex]a_n[/tex]) is the nth term of the sequence. For infinite series, the ratio criterion can be given as,

[tex]r=\dfrac{a_{k+1}}{a_k}[/tex]

If c is a positive real number and

[tex]a_k=k\ln c[/tex]

Put the value in above shown ratio,

[tex]r=\dfrac{(k+1)\ln c}{k\ln c}\\r=\dfrac{k\ln c}{k\ln c}+\dfrac{\ln c}{k\ln c}\\r=1+\dfrac{1}{k}[/tex]

With the value of r, we can say whether the series is converge or not. This value of r does not depends on c.

Thus,  there is no values of c, for  the infinite series ∑k=1[infinity]ak to be converge when c is a positive real number.

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Explanation:

The metre is currently defined as the length of the path travelled by light in a vacuum in 1299 792 458 of a second.

Hope it helps

Have a great day

TC

:DD

The range of wavelengths that are received by the car radio are 2.78 m to 3.41 m.

To find the range of wavelengths, we use the equation for the speed of a wave

The speed of a wave v = fλ where

This is the distance a wave travels in one cycle of the wave.

Making λ subject of the formula, we have

λ = v/f

Given that the range of frequencies of FM radio is 88.0 MHz to 108 MHz and

λ' = v/f'

= 3 × 10⁸ m/s ÷ 88.0 × 10⁶ Hz

= 0.0341 × 10² m

= 3.41 m

λ" = v/f"

= 3 × 10⁸ m/s ÷ 108 × 10⁶ Hz

= 0.0278 × 10² m

= 2.78 m

So, the range of wavelengths that are received by the car radio are 2.78 m to 3.41 m.

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Answer:

This repulsion would be reduced to one-quarter of its former value.

Explanation:

hope this helps. (MARK ME BRAINLIEST, please.)

Answer:

Weight of the body in air = 20gf ( Wa)

Weight of the body in water = 18gf ( Ws)

Weight of the body in liquid =18.2gf ( Wl)

Now,

The loss of weight in the water = 20 - 18 or, 2 gf

So the relative density of the body is = Wa / ( wa - ws )

= 20 / 2

= 10

2) The weight loss in liquid = 20 - 18.2 or, 1.8 gf

So the relative density of the liquid is =( Wa - Wl ) / ( Wa - Ws )

= 1.8 / 2

= 0.9

Explanation:

Answer:

Time domain and frequency domain

Asteroids, often known as minor planets, are stony, airless leftovers of our solar system's early development about 4.6 billion years ago.

The majority of this ancient space junk may be found in the main asteroid belt, orbiting the Sun between Mars and Jupiter. Asteroids range in size from Vesta, the largest at 329 miles (530 kilometers) in diameter, to asteroids as small as 33 feet (10 meters). The cumulative mass of all asteroids is less than that of the Earth's Moon.

Answer: Put simply, a hypothesis is a specific, testable prediction. More specifically, it describes in concrete terms what you expect will happen in a certain circumstance. A hypothesis is used to determine the relationship between two variables, which are the two things that are being tested.

Explanation:

For the electric field is measured for points at distances r,Electric field  is mathematically given as

E=19.9*10^{-5}c/m^3

Generally, the equation for the  electric field uniform charged is mathematically given as

[tex]E=\frac{lr}{3e0}[/tex]

Therefore

E=lr/3E0=3Ee0/r

Therefore

E=3*6*10^4*8.85*10^{-12}

E=19.9*10^{-5}c/m^3

In conclusion, E=19.9*10^{-5}c/m^3

E=19.9*10^{-5}c/m^3

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CQ

Complete question attached below

For a process where T1 = 300K, P1 = 100 kPa, and where T2 = 500K, P2 = 650 kPa,  the change in entropy is mathematically given as

S1-S2=-0.0288KJ/Kgk

Generally, the equation for the entropy   is mathematically given as

S1-S2=mcp*lnt2-t1-Rlnt2/t1

Therefore

S1-S2=1+1.004*ln(500/300)-0.287*ln(650/100)

S1-S2=-0.0288KJ/Kgk

In conclusion, Entropy

S1-S2=-0.0288KJ/Kgk

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Complete Question

Air in a piston-cylinder assembly undergoes a process from state 1, where T1 = 300K, P1 = 100 kPa, to state 2, where T2 = 500K, P2 = 650 kPa. Using the ideal gas model for air, determine the change in entropy between the two states, in kJ/kg-K

The change in entropy between the two states, in a piston cylinder assembly, undergoes a process from state 1 where t1=300k is 2.36 kJ/kg K.

The change in entropy can be find out using the following formula,

[tex]S1-S2=s^oT_1-R\ln \dfrac{p_2}{p_1}[/tex]

Here, (p1 and p2) are the pressure at state 1 and 2 and R is the gas constant. The value of R is,

R=(8.314/28.97).

Air in a piston-cylinder assembly undergoes a process from state 1, where T1 = 300 K, p1 = 100 kPa, to state 2. where T2 = 500 K, p2 = 650 kPa.

Put these values,

[tex]S_2-S_1=1.70203_1-\dfrac{8.314}{28.97}\ln \dfrac{10\text { bar}}{1\text { bar}}\\S_2-S_1=2.36\rm\; kJ/kg K[/tex]

Thus, the change in entropy between the two states, in a piston cylinder assembly undergoes a process from state 1 where t1=300k is 2.36 kJ/kg K.

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Gravitational potential energy is an energy acquired by an object due to a change in its height when it is present in a gravitational field. It is denoted by P or U. and it its expressed in joule. Gravitational potential energy is given by U = mgh where m is the mass of the object, g is acceleration due to gravity and h is the height.

when we take an object of mass m to a certain height in the field of gravitation, we can say that body has potential energy and we release that body from that height, it falls.

Electric potential energy is the energy that is needed to move a charge against the electric field.

Electric Potential Energy is given by,

[tex]U_E = k \frac{q_1q_2}{r}[/tex] where k is dielectric constant, q is charge r is the distance.

Electric Potential Energy is the potential energy stored against electric field. it exist around the charged particle.

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Answer: A

Explanation:

Work is defined as the inner product between the force vector and the distance traveled. Due to the energy-work theorem, the total work done is equal to the change in kinetic energy. But since there is friction, we must also take into account that frictional force. The frictional force opposes the motion of the object, and will take away energy from the object in the form of heat. Therefore, we must subtract the amount of energy done by friction from the total kinetic energy.

For your case, the answer would be A. Although, that is technically incorrect. The car does not gain energy due to friction.

Answer:

The moons gravity is 1.62 m/s²

The acceleration of the garbage can is 2.55 m/s².

Acceleration is the rate of change of velocity with respect to time.

To calculate the acceleration of the can, we use the formula below

Formula:

Where:

Make a the subject of the equation

From the question,

Given:

Substitute these values into equation 2

Hence, the acceleration of the garbage can is 2.55 m/s².

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The number of electrons that is needed to fill the following sublevels are:

The formula to find this out is:

= 2 x (2 x Level +1)

1s = 0 levels

Number of electrons:

= 2 x (2 x 0 + 1)

= 2 electrons

2s = 0 levels

= 2 x (2 x 0 + 1)

= 2 electrons

2p = 1 level

= 2 x (2 x 1 + 1)

= 6 electrons

3s = 0 levels

= 2 x (2 x 0 + 1)

= 2 electrons

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The completed table using the electron arrangement interactive is attached below. In this table for sublevel 1s, 2s, 2p and 3s electron needed is 2,2,6 and 2 respectively.

The electron arrangement is the way or process to arrange the electrons in an atom. The number of electron  needed per sublevel are expressed in following points.

The image of the table which fill the sublevel is attached below. In this table all the electron is fulfilled with needed electrons.

Thus, the completed table using the electron arrangement interactive is attached below. In this table for sublevel 1s, 2s, 2p and 3s electron needed is 2,2,6 and 2 respectively.

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Answer:

i hope this helps you have a good day i hope you get an 100% on you quiz!

Explanation:

The atmosphere is a mixture of nitrogen (78%), oxygen (21%), and other gases (1%) that surrounds Earth. High above the planet, the atmosphere becomes thinner until it gradually reaches space. The atmosphere is an important part of what makes Earth livable.

It is very important for your measurements that the track is level because unlevel track change the acceleration of an object.

A non-level track leads to bring change in the acceleration of an object which leads to different value of experiment.

So we can conclude that it is important for your measurements that the track is level because unlevel track change the acceleration of an object.

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The track must be level for your measurements because an unlevel track changes the acceleration of an object.

It is defined as the numerical quantity that gives an idea about object length, width, and many more. It can be used to compare two objects.

The non-level track causes changes in an object's acceleration, resulting in various experiment values.

As a result, we can deduce that now the levelness of the track is critical for your measurements, as an uneven track changes an entity's acceleration.

Thus, the track must be level for your measurements because an unlevel track changes the acceleration of an object.

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The absence of external force in the outer space, allows the piece of rock to continue moving at the same velocity for thousands of years.

The outer space is almost an absolute vacuum, because it's nearly empty. There is no matter such as air in the outer space that will provide an external force needed to change the velocity of the piece of rock.

From Newton's first law of motion, an object in a state of rest or uniform motion in a straight line, will continue in that state unless it is acted upon by an external force.

Thus, the absence of external force in the outer space, allows the piece of rock to continue moving at the same velocity for thousands of years.

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Answer:

inertia

Explanation:

''When the quantity demanded intersect with quantity supplied, it leads o the formation of equilibrium point.''

The equilibrium price and equilibrium quantity occur where the supply and demand curves cross with each other. The equilibrium occurs when the quantity demanded is equal to the quantity supplied.

So we can conclude that  when the quantity demanded intersect with quantity supplied, it leads o the formation of equilibrium point.

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Equilibrium is the condition when the supply of any goods meets the demands completely. The point at which the graph intersects is the equilibrium price.

Equilibrium is the condition when the supply of any goods meets the demands completely. Therefore, no extra goods are left.

Equilibrium is the condition when the supply and the demand line cross each other on a price and quantity graph as shown below. The point at which the graph intersects is the equilibrium price.

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Answer:

This is your answer

If I freeze fresh water and salt water then the fresh water will freeze more quickly because salt lowers the freezing point temperature

Explanation:

I hope it helped you

The magnetic field for a moving charge is the same as the magnetic field from a current element of length, dL, carrying current, I, provided that the quantity qv is replaced by 'IL'.

The magnetic force on a charged particle is determined from the product of the magnetic field strength (B), speed of the charge (v) and magnitude of the charge (q).

The magnitude of the force is caculated using the following formula;

F = qvB

The magnitude of the force is calculated using the following formula,

F = BILsinθ

F = BIL

Where;

At equal magnetic force, the magnetic field can be calculated as follows;

B = F/qv = F/IL

Thus, the magnetic field for a moving charge is the same as the magnetic field from a current element of length, dL, carrying current, I, provided that the quantity qv is replaced by 'IL'.

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The moving charge is the same as the field from a current element of length dl carrying current I provided that the quantity qv is replaced by "IL".

It is the type of field where the magnetic force is obtained. With the help of a magnetic field. The magnetic force is obtained it is the field felt around a moving electric charge.

The magnetic force on the charged particle is found as;

[tex]\rm F = qvB[/tex]

The magnetic force on the current-carrying wire is found as;

[tex]\rm F = BIL sin \theta[/tex]

When the angle of inclination is at a right angle;

[tex]\rm F= BIL[/tex]

The magnetic field is;

[tex]\rm B = \frac{F}{qv} \\\\ B= \frac{F }{IL}[/tex]

The moving charge is the same as the field from a current element of length dl carrying current I provided that the quantity qv is replaced by "IL".

Hence the quantity qv is replaced by "IL".

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The work done in moving a block across a rough surface and the heat energy gained by the block can both be measured in Joules.

Joules is a unit of measurement used in physics that indicates the force exerted on a particular object.

A Joule is a work when a force that equals one (1) newton moves an object one (1) meter in a given direction.

Joules is the most widely extended unit of force and energy in physics and related disciplines.

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Answer:

3 m/s

Explanation:

Initial = Final

Mass * Velocity = Mass *Velocity

8000kg * 12m/s = (8000kg+ 24000kg) * (Final Velocity)

(96000 kgm/s) / (32000kg) = (Final Velocity)

Final Velocity = 3 m/s

The speed of the coal car afterward is 3 m/s if an empty coal car of a train of mass 8000 kg is moving at 12 m/s along rails. 24000 kg of coal is dumped into the car from a motionless bin.

The momentum of the body before the contact is always equal to the momentum of the body after the collision, according to the law of conservation of momentum.

According to the law of conservation of momentum;

Momentum before collision =Momentum after collision

We have:

Mass of the empty coal car of train M(e) = 8000 kg

Speed V(e) = 12 m/s

Mass of the coal M(c)  = 24000 kg

Let's suppose the speed of the coal car afterward V(c)

M(e) ×V(e) = (M(c)+M(e))× V(c)

8000×12 = (24000+8000)×V(c)

V(c) = 3 m/s

Thus, the speed of the coal car afterward is 3 m/s if an empty coal car of a train of mass 8000 kg is moving at 12 m/s along rails. 24000 kg of coal is dumped into the car from a motionless bin.

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Answer: "Most of the light waves are reflected", might be the correct answer.

Explanation: it might be the correct answer because the light waves spread out from the source in all directions, and upon striking a mirror, are reflected at an angle determined by the angle at which the light arrives. The reflection process inverts each wave back-to-front, which is why a reverse image is observed.

Answer:

most light waves are reflected

explanation:

when light hits a mirror it bounces back at the same angle it hit this is called reflection refraction on the other hand Refraction is the bending of light

Image result for what is refraction of light

Refraction is the bending of light

The frequency of the wave at the given period is 0.114 Hz. This frequency shows the number of revolution of the wave in a second.

The frequency of a wave is the number of revolutions of the wave per second.

Frequency of a wave is determined by taking the inverse of period of the wave.

The frequency of the wave at the given period is calculated as follows;

f = 1/T

Where;

f = 1/8.75

f = 0.114 Hz

Thus, the frequency of the wave at the given period is 0.114 Hz.

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Answer:

displacement, acceleration, potential energy

Explanation:

pretty sure this is correct but dont hold me to it.

The set of three that can have maximum magnitudes at the same instant of time will be displacement, acceleration, and potential energy.

Simple harmonic motion is periodic motion caused by a restoring force that is proportionate to the deviation from equilibrium.

Simple harmonic motion is periodic motion but many other conditions are dependent.

The object is in simple harmonic motion of the following quantities related to the object.

The set of three that can have maximum magnitudes at the same instant of time will be displacement, acceleration, and potential energy.

Hence the set of three quantities is the options i, iii,v.

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