The magnitude, m, of an earthquake is represented by the equation m=23logee0 where e is the amount of energy released by the earthquake in joules and e0=104.4 is the assigned minimal measure released by an earthquake. which equation could be used to find the amount of energy released by an earthquake with a magnitude of 2.7?

Confined aquifers are surrounded by impenetrable rock, whereas unconfined are surrounded by penetrable rock- the one allows water in the other does not accept water unless an opening is opened.

Unconfined aquifers are those where the ground's rock is directly exposed at the surface and groundwater is continuously refilled, for instance by precipitation or snow melt. Thick deposits that surround an aquifer and keep it enclosed from the Earth's surface or other rocks are known as confined aquifers. A restricted aquifer is sometimes envisioned as an open-to-the-atmosphere water-bearing unit in the mountains that gets recharge from precipitation. The fine-grained sediments that enclose the water-bearing unit bury the laterally continuous water-bearing unit as it spreads into the valley. Unconfined aquifers are composed of sand, limestone, and gravel layers and are found underneath rivers and streams. Due to their considerably easier refill-ability and ability to maintain balance, unconfined aquifers would be more sustainable for irrigation.

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if a pizza radiates more energy than it absorbs, its temperature will decrease, hence option C is correct.

The temperature of a substance radiates energy without also absorbing it as it cools.

The amount of energy stored in a solid item reduces if it radiates more energy than it absorbs, which results in a fall in the object's temperature.

Therefore, the temperature of the pizza will decrease, if it radiates more energy than it absorbs, hence option C is correct.

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The impulse imparted on the ball is 18Kgm/s.

The force supplied on the ball is 5 Newton and the mass of the ball is 3 kg.

The ball is slow down from a speed of 9m/s to 3m/s.

The impulse imported on the ball can be given by the relation,

I = ∆P

Where,

P is the momentum of the ball.

So,

We can write,

I = M∆V

Where, M is the mass of the body and V is the speed.

I = 3(9-3)

I = 3×6

I = 18 Kgm/s.

So, the impulse on the ball is 18kgm/s.

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For a pure resistance when a nonzero ac source is applied  the power is Negative or Positive

In a purely resistive circuit, the power is never zero. Moreover, this is due to the instantaneous values of the current and voltage being always negative or positive. Also, the frequency of the purely resistive circuit's power cycle is double that of the current and voltage waves.

A purely resistive circuit is a circuit that has inductance so small that at its typical frequency, its reactance is insignificant as compared to its resistance. Furthermore, in a purely resistive circuit, the whole of the utilized voltage is consumed in overcoming the ohmic resistance of the circuit itself. Also, another name for a purely resistive circuit is a non-inductive circuit.A circuit that contains only a pure resistance (ohms) in an AC circuit is called a Purely Resistive AC Circuit.

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The change in internal energy for absorbing heat is 115J.

Total self-energy measurement is not possible. Its variation is measured and expressed as ΔU.

This variation depends on the transferred heat energy, light energy, or similar energy. You can also calculate the work done by the system or the work done on the system.

When a thermodynamic system transfers thermal energy to another system, the internal energies of the two systems change. Other state variables can also be changed.

When the structure of an atom or molecule changes, the internal chemical energy changes. In thermodynamics, the ideal gas concept is often used. This is an approximation of a real system used for educational purposes.

q=U+w

U=q-w

U=45-(-70)=115J

work for absorption is negative.

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Visible radiations are the electromagnetic radiation wavelength which is efficiently observed using ground based telescopes.

The electromagnetic waves we can for the most part see on the ground comprise of apparent light, which is challenging for the air to retain, close infrared beams, and a few electromagnetic waves. These frequency ranges are called air windows.

Noticeable light is a sort of electromagnetic radiation, which is sent in waves or particles at various frequencies and frequencies. This wide scope of frequencies is known as the electromagnetic range. That range is commonly separated into seven districts arranged by diminishing frequency and expanding energy and frequency.

A commonplace natural eye will answer frequencies from around 380 to around 750 nanometers. As far as recurrence, this compares to a band nearby 400-790 terahertz. These limits are not pointedly characterized and may differ per person. Under ideal circumstances these restrictions of human insight can stretch out to 310 nm (bright) and 1100 nm (close to infrared).

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The current rating of a fuse tells how much current the fuse will allow: True

Current rating is the maximum current that a fuse will carry for an indefinite period without too much deterioration of the fuse element. A wide range of power switching transistors are also available, with current rating up to several hundred amperes and voltage ratings well over 1000V.

Thus we know that  fuses are designed for the limiting of current of specified level Like 5A, 10A..., etc.

If current reaches above that limit fuse blow out.

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For a material with a long half-life, the rate of decay is lower. The positively charged protons would typically reject one another due to electrostatic repulsions, but the strong nuclear force, an incredibly potent but extremely localized attractive force between nucleons, prevents this from happening and keeps the nucleus together.

What is beta decay ?

In an alpha decay, the atomic number is lowered by two. A beta decay results in a rise of one in the atomic number. Protons can stay together in a nucleus despite the fact that their charges repel one another because of this phenomenon, which is greater at very close ranges than electrostatic repulsion. The ratio of neutrons to protons is the main determinant of stability. Atoms with an imbalance of neutrons, either too many or too few, are unstable.

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The net force on the person before the air bag deploys is 5782 N Backwards.

Given :

Mass of the passenger, m = 59 kg

Velocity of the car at impact, u = 14 m/s

Final velocity of the car after impact, v = 0

Distance moved as the front of the car crumples, s = 1 m

First, calculate the acceleration of the car at impact :

v² = u² + 2as

0² = 14² + (2 x 1)a

0 = 196 + 2a

2a = -196

a = -196 / 2

a = -98 m/s²

The net force on the person :

F = ma

F = 59(-98)

F = -5782 N backwards

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The voltage in the primary is directly proportional to the turns in the primary winding.The voltage in the secondary is directly proportional to the turns in the secondary.The increase in the turns in the primary will decreases the ratio.

A transformer is a passive device that converts the voltage level either from high to low or low to high. The  that converts the high voltage power to low voltage power is called a step-down transformer and the one that converts low to high voltage is called a step-up transformer.

Given:

Vs=72 (no of turns in secondary coil)

Vp= 610 (no of turns in primary coil)

Hence,

Vp > Vs

Its a step down tranformer.

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The internal energy in substances is called intrinsic energy. It is the sum total of all energy possessed by constituting particles of a substance. This is represented by the symbol U.

Particles in a substance are in continuous motion. Kinetic energy is associated with them due to this motion of particles. Internal energy is directly linked with temperature. With the rise in temperature, kinetic energy due to motion of particles increases and hence total internal energy increases.

Internal energy is kinetic energy in particles, electrical energy of atoms, and energy stored in bonds.

It is given by the formula

ΔU = q + W

Here,

U = the change in internal energy.

q i= the heat

W = the mechanical work.

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When electrons move from a trajectory with a low energy level to a higher energy level, it absorbs energy called excitation.

At a certain stationary level electrons only have a certain level of energy anyway. The level of such energy is formulated.

[tex]E_{n} =\frac{-13.6z^{2} }{n^{2} } eV[/tex]

where Z  denotes an atomic normor, and n denotes a particular shell or a certain quantum number of an electron's stationary trajectory.

2s is on second  layer, so n = 2 and Z for Na is 11

Based on thus formula, energy for 2s electron is 1223 because we need higher energy to move from based layer than others

the distance from the subject to the second lens final image is 4.8106 m

The solution to this kind of issue is that the item in the second (right) lens is the intermediate picture in the first (left) lens. Then, starting with the notation from reference 1, where (+uN is the object distance from the lens N and (+vN is the image distance from the lens N), we have:

u1 = 1.8 m; f1 = 0.98 m; sep = 0.78 m; f2 = -3.4 m; v2 = TBD

Solving,

v1 = 1/(1/f1-1/u1) = 2.127 m

u2 = sep-v1 = -1.347 m

v2 = 1/(1/f2-1/u2) = 2.23064 m

Final Image location relative to object = v2+sep+u1 = 4.8106 m Magnification = v1v2/(u1u2) = -1.9561

A lens is a transmissive optical device that, via the use of refraction, concentrates or disperses a light beam. A compound lens is made up of numerous simple lenses (elements), typically organized along a common axis, whereas a simple lens is made up of a single transparent piece of material. Lenses are created by grinding and polishing or molding materials like glass or plastic into the correct form. A prism only refracts light without concentrating, whereas a lens can concentrate light to create a picture. The term "lens" also refers to devices that focus or disperse waves and radiation other than visible light, such as explosive, microwave, and electron lenses.

Telescopes, binoculars, and cameras are just a few examples of image devices that use lenses.

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Placed on another gel containing SDS, and electric current is again applied. in this second step is Proteins with similar isoelectric points can be further separated based on their molecular weights.

A laboratory technique called gel electrophoresis is used to divide combinations of DNA, RNA, or proteins based on their molecular sizes. In gel electrophoresis, the molecules that need to be separated are forced through a gel that has tiny pores by an electrical field. By electric current the speed at which the molecules move through the pores in the gel is inversely proportional to their lengths. This indicates that a smaller DNA molecule will move through the gel further than a larger DNA molecule. Gel electrophoresis, as was already said, uses an electrical field that is applied in such a way that the gel has a positive charge on one end and a negative charge on the other. DNA and RNA, which have negative charges, will be attracted to the positively charged end of the gel. Proteins must, however, first be mixed with a detergent called sodium dodecyl sulfate before being separated using gel electrophoresis since they are not negatively charged. During this procedure, the proteins acquire a linear structure and a negative charge that allow them to travel toward the positive end of the gel and separate.

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The launch speed of a horizontally launched projectile that lands 26.3 meters from the base of a 19.3 meter high cliff is 13.22 m/s.

To determine the speed of the projectile, use the equation:

v = d/t

Where,

v = the speed (m/s)

d = distance (m)

t = period (s)

But first, we should calculate the time it took the projectile to land at the base of the cliff by using the maximum height formula:

h = ½ gt²

Where,

h is the height of the object

g is the acceleration due to gravity, and

t is the time it takes the object to fall to the ground.

We have;

Height = 19.3 m

Acceleration of gravity = 9.8 m/s²

Substituting the given parameters into the formula,

h = ½ gt²

19.3 = ½ (9.8) t²

19.3 = 4.9  t²

t² = 3.94

t = [tex]\sqrt{3.94}[/tex]

= 1.98 s

So,  the launch speed of the projectile:

v = d/t

= (26.3)/(1.99)

= 13.22 m/s

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Answer:

it's 13

Explanation:

10times6 plus 8 = 13

Answer:

Potential energy  800 J

Explanation:

Given:

M = 10 kg

h = 8 m

g = 10 m/s²

____________

W - ?

Potential energy:

W = M·g·h

W = 10·10·8 = 800 J

The wavelength of light is 0.5μm.

A packet of electromagnetic energy, or photon, is typically produced when an electron in an atom makes a transition from high energy to low energy. It is also absorbed during the transition from low energy to high energy. Visible light consists of photons that can be seen by the human eye. All electromagnetic energy sent or received consists of photons of varying amounts of energy given by the equation E=hf. The equation E=hf is called the Planck-Einstein relation.

This equation only applies to energies at the quantum level. It is generally stated that the energy of a photon is proportional to its frequency, with the proportionality factor being 'h' or Planck's constant, approximately 6.62607004 × 10⁻³⁴ m² kg/s.

y=c/v

y=3 x10⁸/6 x 10¹⁴

=0.5 x 10⁻⁶m

=0.5μm

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Imax is E. R. LC will result in the maximum current being delivered. Current obtained from a cell with external resistance R and internal resistance r has the formula I is E/(R+r).

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If the microwaves are incident on the horizontal wire grid, the reception becomes maximum.

If the electric field is along the direction of the bars then the polarizer will absorb its energy.

When the polarized microwaves with the electric field in the vertical direction passes through the vertical wire grid, the vertical electric field is dissipated in the wires and the reception is blocked. If the microwaves are incident on the horizontal wire grid, the reception becomes maximum.

The order of increasing energy is as follows

microwave < infrared < visible < ultraviolet

The term polarization commonly refers to the electric field component of the radiowave. In terrestrial microwave antennas, the polarization of the radio waves will be either horizontal or vertical. That is, the electric field will be either horizontal or vertically orientated.

Therefore, if the microwaves are incident on the horizontal wire grid, the reception becomes maximum.

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knowing that on Pluto the gravity is 1/16 of gravity on the Earth. T pluto= The period is independent of the suspended mass.

The force that pulls items toward the center of a globe or other entity is called gravity.Each of the planets are kept in the sun's orbit by gravity.

The most precise measurement of the gravitational acceleration is 9.8 m/s/s.This number has small fluctuations (to a second decimal point) that are mostly determined by altitude.

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When acceleration increases, then the period of motion decreases. As, the relation between acceleration and period of motion (oscillation) is inversely proportional

T=1/2π × √1L/g+a

Inside the moving lift

T=1/2π × √L/g+a

T= period pf motion (oscillation)

L= is the length of the pendulum

a= acceleration of the elevator

When the elevator accelerates in the upward direction, then the effective acceleration of the pendulum is equal to the sum of acceleration due to gravity and the acceleration of the elevator, therefore,

T=2π√L/g

So, if acceleration increases, then

T=2π√L/g+a

Therefore, effective acceleration increases and this results in a decrease in the period of motion.

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Answer:

  neither

Explanation:

You want to know the greater of the forces of a man pushing a car uphill, or the car pushing on the man when velocity is constant.

Newton's third law of motion tells you for every action, there is an equal and opposite reaction. This means the force on the car is the same as the force on the man, since there is no net acceleration.

Neither force is larger: they are both the same.

__

Additional comment

If the car's velocity were increasing or decreasing, a net force would be indicated. That is, one or the other of the two forces would be larger.

The motorcycle is experiencing a deceleration of 4m/s². This is because the velocity of the motorcycle decreases with time.

Acceleration is the rate of change of the velocity of an object with respect to time taken. An object's acceleration is the net result of all the forces which are acting on the object. This can be best described by Newton's Second Law of Motion. The SI unit for acceleration is meter per second squared (m/s²).

The acceleration of the westward-moving motorcycle = Change in velocity/ time taken

a = (v-u)/ t

where, a = acceleration of the object,

u = initial velocity of the object,

v = final velocity of the object,

t = time taken by the object

a = (12 - 24)/ 3

a = -12/ 3

a = -4m/s²

Therefore, the acceleration of the motorcycle is -4m/s² i.e., deceleration of 4m/s².

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3.416 kV is the lowest accelerating voltage.

The wavelength of X-ray,

λ= 0.0360 nm= 0.0360×10−9 m

For minimum wavelength

eV=hc/λ

∴V=hc/eλ

= ( 6.6×10^−34×3×10^8 )/(6×10^−19×0.0360×10^−9 )

=34.16×10^4V

= 3.416kV

The wavelength is a term used to describe waveform signals that are sent over wires or into space, and it is defined as the separation between two identical positions (adjacent crests) in succeeding cycles.

The wavelength is more frequently given in nanometers (nm), which are units of 10-9 m, or angstroms, which are units of 10-10 m, for infrared (IR), visible light (UV), and gamma radiation.

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The force that keeps the puck moving is 0.25 N while the velocity of the puck is  3.7 m/s.

We know that the centripetal force is the force that acts on a body that is moving along a circular path. In this case, we are told that the puck is moving along a circular path hence it is acted upon by the centripetal force that acts on it.

The centripetal force in this case would be supplied by the weight of the object that is moving in the circular path. Thus we can write in our equation that;

Centripetal force = Weight of object = mg

m = mass of the object

g = acceleration due to gravity

Then;

W = 0.026 Kg * 9.8 m/s^2

W = 0.25 N

To obtain the velocity of the object;

FT = mv^2/r

v = √ FT r/m

v =  √0.25 * 1.4/0.026

v = 3.7 m/s

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The era of nucleosynthesis came to an end about 5 minutes after the big bang, which is when it was discovered what the universe's fundamental chemical make-up was.

A few minutes later, the cosmos got too cold, and nucleosynthesis ceased. Since nucleosynthesis was no longer possible, the deuterium that was still there at that time just remained deuterium. It had not yet fused into any heavier nuclei.

In order for stable, neutral atoms to form, the cosmos had expanded and cooled to a temperature of roughly 3,000 K.

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The work that has been done by the speed is obtained as 19600 J.

We know that the roller coaster is the device that can be use used to show the relationship between the kinetic and the potential energy. Recall that the potential energy is possessed by a body as a result of its position while the kinetic energy is possessed by a body that is seen to be in motion.

In this case, the work that is done is seen as the gravitational potential energy that is required to be able to move the roller coaster from one point to the other.

Now we know that;

W = mgh

m = mass of the object

g = acceleration due to gravity'

h  height of the object

Thus the work done = 200 Kg * 9.8 m/s^2 * 10 m

= 19600 J

Thus the work done is 19600 J.

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The wavelength of wave is 0.6×10⁶m  if 500Hz is the frequency of the  light wave.

In physical science, the wavelength is defined as the spatial time of an occurring wave — the distance over which the wave's shape repeats. It is the defined as the distance between back to back relating points of similar stage on the wave, like the two nearby peaks, box, or zero intersections, and is a quality of the both voyaging waves and standing waves, as well as the spatial wave patterns. The reverse of the frequency is called as the spatial frequency. Frequency is represented by the Greek letter lambda (λ).

For electromagnetic wave ,we have an expression

c=ν × λ

where c is the defined as the speed of wave in any medium,

ν is  defined as the frequency of the wave and

λ is defined as the  wavelength of the wave.

Since wave is light wave so speed(c) of light =3×10⁸m/sec,

frequency=500Hz and wavelength=?

Therefore,3×10⁸m/sec=500×λ

=>λ=(3×10⁸)/500

=>λ=0.6×10⁶m

Hence, wavelength of light wave is 0.6×10⁶m.

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(Complete question) is:

What is the wavelength of wave having frequency 500Hz.Assume wave is a light wave?

the weight of the block is Mg.

As shown in figure, a tiny block with mass m is launched from point A onto a fixed, smooth wedge.The block stops sliding at point C so because straight part of a floor is rough, which is marked as B at the bottom of the wedge.

An average kinetic potential energy contained in the wire when a block of mass M was suspended by the a coiled wire of length L is stress, strain, and volume.Justify its equality with Mgl, where l seems to be the extension.The mass earth system's Mgl loss of gravitational potential energy.

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The correct answer is A. Every second, the Sun converts about 600 million tons of hydrogen into 596 million tons of helium. The remaining 4 million tons of mass is converted to an amount of energy equal to 4 million tons times the speed of light squared.

The sun is the big name at the center of the solar device. it's by far nearly the best ball of warm plasma, heated to incandescence by nuclear fusion reactions in its center. The sun radiates this electricity, particularly as light, ultraviolet, and infrared radiation, and is the maximum essential source of strength for existence in the world. The huge effect of the sun on the planet has been diagnosed considering prehistoric instances. The sun became the concept in some cultures as a deity. The synodic rotation of Earth and its orbit across the sun are the basis of some sun calendars.

each 2d, the sun's core fuses about six hundred million lots of hydrogen into helium, and within the process converts four million tons of count into power. This electricity, which may take between 10,000 and one hundred seventy,000 years to escape the middle, is the source of the solar's mild warmth. whilst hydrogen fusion in its center has dwindled to the factor at which the sun is not in hydrostatic equilibrium, its core will go through a marked growth in density and temperature while its outer layers expand, ultimately reworking the sun right into a red giant.

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