you take a spectrum of a faraway galaxy and find that its hydrogen alpha line peaks at 6782 angstroms. what is its recessional velocity?

The amount of current flowing through the other wire is 518.5A, whereas the 2.25-meter segment of wire feeding power to a submerged submarine's motor has a capacity of 750A and a resistance of 3.5N.

In physics, magnitude is referred to as an object's maximal size and direction. In both vector and scalar quantities, magnitude is a common factor. We know that scalar quantities are those that have magnitude and nothing else by definition. The movement of electrical charge carriers like electrons is known as current. Positive and negative locations both experience current flow. The ampere is the SI unit for calculating electrical current (A). One coulomb of electrical charge travelling across a certain place in one second is referred to as one ampere of current.

I2 = 3.5*5*10^-2/2*750*2.25*10^-7

I2 = 518.5A

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The acceleration due to gravity on jupiter is 23 m/s². And the correct option is D. 23 m/s².

Acceleration due to gravity is the acceleration gained by an object due to gravitational force. Its SI unit is m/s².

To calculate the acceleration due to gravity on jupiter, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1 and solve for g'

Hence, the acceleration due to gravity on jupiter is 23 m/s².

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The velocity of the piece b is expressed as vb = (ma×va)/mb.

The Law of Momentum conservation states that the Momentum of particle before collision will be equal to momentum of particles after collision. If we assume that the mass of parent nuclei is M and its velocity is V, then according to law of momentum conservation

MV = - ma×va + mb×vb ( we use negative sign because part a travels left)

Now, the initial velocity of parent nuclei is zero because it was at rest that is V = 0. So, the equation will be

0 = - ma×va + mb×vb

ma×va = mb×vb

From this we get

vb = (ma×va)/mb.

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The statement that best describes the relationship between the potential and kinetic energy of the baseball when Blake pitches it to the catcher is the potential energy decreases and kinetic energy increases.

U = m g h

KE = 1 / 2 m v²

U = Potential energy

m = Mass

g = Acceleration due to gravity

h = Height

KE = Kinetic energy

v = Velocity

Initially v = 0. So the ball has zero kinetic energy. As the pitcher pitches the ball, the ball gains speed and its kinetic energy increases. According to law of conservation of energy, the final potential energy should be zero, so that the total energy is conserved.

The given question is incomplete. The complete question is:

Blake is the pitcher on his middle school baseball team. Which statement best describes the relationship between the potential and kinetic energy of the baseball when Blake pitches it to the catcher?

A. The potential energy decreases and kinetic energy decreases.

B. The potential energy decreases and kinetic energy increases.

C. The potential energy increases and kinetic energy decreases.

D. The potential energy increases and kinetic energy increases.

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If i want to find a sizeable collection of population ii stars in the milky way galaxy In a globular cluster high above the Galaxy's disk would be a good place to look.

The Milky Way is the galaxy that includes our Solar System, with the name describing the galaxy's appearance from Earth. A  hazy band of light seen in the night sky formed from stars that cannot be individually distinguished by the eye.

Earth is located about halfway between the center of the Milky Way and its outer edge. Light at the galaxy's center takes 25,000 light-years to travel from Earth. A light-year is the distance light travels in one year.

There are around fifty galaxies in the Milky Way, the largest of which is the Large Magellanic Cloud. This satellite galaxy has a diameter of only 14,000 light-years. The Large Magellanic Cloud may have as many as 10 billion stars within it.

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Tapping of geothermal energy to produce electricity is done on a larger scale compared to the tapping of the geothermal gradient using a geothermal heat pump.

Harnessing geothermal energy is also reliant on geological conditions such as in the area of convection boundaries while geothermal gradient can be harnessed virtually anywhere on the earth surface.

The geothermal energy is the heat that is derived from the storing of energy that creates by the earth's temperature and the earth's crust is origin for this type of energy along with the radioactive decay of the elements of the crust.

Thus said to be earth's internal heat and needs to be trapped as it can get lost during the formation stages.  

The temperature that occurs at the earth's core and the metal zone reaches up to 4000°C and thus the high temperature causes the rocks to melt and give rise to the temperature in the plastic mantle to get activated by the convection currents that reach the surface.

Some examples of this geothermal energy are those of the hot spring and the rising lava or the magmas.

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The change in the momentum was found to be 16,000 kgm/s

Change in momentum ?

Situations involving impulse and momentum are all around us, whether we notice it or not. Before we begin evaluating these daily instances, we'll go over the fundamental ideas of impulse and momentum.

In physics, an impulse (Ft) is a force (F) operating over a certain time (t) that results in a change in momentum (p) of an object. The impulse-momentum theorem is the equation of impulse with the change in momentum.

the change in the momentum was Δp=mxΔv

Δp=2000x8

Δp=16,000 kgm/s

therefore the change in momentum was found to be 16,000kgm/s

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The movement that would raise potential energy the most is D. Since each movement moves a cart a fixed distance, they all have an equal impact on potential energy.

Depending on where various system components are located in relation to one another, potential energy can be thought of as stored energy. Stretching or compressing a spring increases its potential energy. When a steel ball is raised significantly above the earth as opposed to being dropped to the earth, it has a significantly higher potential energy.

Potential energy exists in stones perched on a cliff's edge. The energy stored will be transformed into kinetic energy if the stones fall. High on the tree, branches have the potential to fall, which gives them vitality. Chemical potential energy exists in the food we eat.

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Answer:

~ 5300 W  ( rounded)

Explanation:

The POTENTIAL energy of 90 kg of water before it falls 60 m

 is   mgh =  90 * 9.81 * 60 = 52974 J

POWER = energy / time = 5297.4 W    ( assuming no losses)

The change in internal energy is 200 J when heat is removed.

If the internal energy of the system is U1 in the initial state and U2 in the final state, then the change in internal energy is

ΔU = U2 – U1

In a chemical reaction, if UR is the internal energy

ΔU = UP – UR

The internal energy of the system changes as

(1) heat enters and exits  System

(2) Work becomes performed on or by the system

(3) Substance enters or leaves the system

(4) If U1 > U2, the extra energy that the system has in the initial state is dissipated and ΔU becomes negative.

(5) If U1 < U2, energy is absorbed in the process and ΔU is positive. ΔU is negative when energy is released and ΔU is positive when energy is absorbed.

Q=U+W

U=Q-W

U=300-100=200J

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A person on the scales rides the elevator. The scale currently reads 294 Newton.

The elevator accelerates at 4.90 m/s2 and has a mass of 60.00 kg.

As we all know, the weight of an item is determined using the formula W = mass x acceleration, or 60 x 4.90.

It carries a 294 Newton weight.

Newton's first law of motion explains how things will behave when all external forces are equal. The first law, often known as the law of inertia, asserts that if an object's forces are uniformly distributed, its acceleration will be zero metres per second.

An object is considered to be in equilibrium and not accelerate when all forces are in balance. Newton proposed that a thing will only speed up if there is a net or unbalanced force acting on it.

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A solid object is found to weigh 4.784.78n in air. when it is weighed while fully immersed in water, its apparent weight is 2.482.48n. 983 is the density of the object.

The substance's density is defined as its mass per unit of volume (volumetric mass density or specific mass). Although the Latin letter D may also be used, the symbol for density that is most usually used is (the lower case Greek letter rho). where V is the volume, is the density, and m is the mass. Weight per unit volume is a common informal definition of density, however this is incorrect scientifically; the actual term is specific weight. The US oil and gas industry serves as one illustration of this. A pure substance's mass concentration in numbers is equal to its density. To make density comparisons between different systems of units easier, it is occasionally replaced by the dimensionless quantity "relative density" or "specific gravity," which is the ratio of the density of the material to that of a standard material, usually water. If a substance's relative density to water is less than one, it will float in it. Temperature and pressure have an impact on a substance's density. This variation is frequently not very noticeable for solids and liquids, but it is very noticeable for gases. As pressure is applied, an object's density rises, which reduces the object's volume. With a few rare exceptions, as temperature increases, a substance's density decreases as its volume grows.

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The vertical component of the tensions in each rope is 50 N.

Weight of traffic light = w = 100N

The angle at which the ropes are supported = θ = 30

After drawing Free Body Diagram,

The vertical component of tension in each rope =

= 2 X T X sinθ = w

= 100 = 2 X T X sin30

= T = 100 / ( 2 X sin30)

= T = 100 N

Now, tension on vertical component =  

= Tsin30

= 100 X 0.5

= 50 N

The term free body is usually associated with the motion of a free body diagram, a pictorial device used by physicists and engineers. In that context, a body is said to be "free" when it is singled out from other bodies for the purposes of dynamic or static analysis.

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An earthquake is a sudden release of energy in the Earth’s crust that creates seismic waves. These seismic waves travel through the Earth and can cause destruction of property and human life.

The type of seismic wave that causes the most destruction during an earthquake is the surface wave. Surface waves are formed when the energy released by an earthquake is transmitted through the Earth’s crust. These waves travel along the surface of the Earth and can cause extensive damage to structures near the epicenter of the earthquake. This is because surface waves have a greater amplitude than other types of seismic waves, meaning they are more powerful.

The energy released by these waves can cause buildings to collapse, bridges to buckle, and roads to crack. Surface waves can also cause landslides and soil liquefaction, which can lead to further destruction of property. Surface waves can also cause damage to human life. These waves can cause the ground to shake violently, which can cause people to fall and be injured. The shaking can also cause objects to fall from shelves or walls, which can lead to injury or death. Additionally, surface waves can cause tsunamis if the earthquake occurs near a body of water, which can lead to significant loss of life.

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Answer:

Explanation:'Distance' is the total length travelled by an object. The standard unit is the 'metre'.

A distance-time graph shows how far an object has travelled in a given time.

Distance is plotted on the Y-axis (left) and Time is plotted on the X-axis (bottom)

The average impact force on the ram is 250,000 N.

It is given to us that -

The weight of the pile driver is given as 2500 N

The pile driver ram falls at a height of 10 m

The post travels 0.1 m into the ground as a result of the pile driver

We have to find out the average impact force on the ram.

We know, with constant force, work can be represented as -

[tex]W=Force * distance[/tex] ---- (1)

where,

F = force applied in (N - m)

d = distance for which the force is applied

Similarly, the potential energy of a system can be represented as -

[tex]Potential Energy = mgh[/tex]

where,

m = mass of the system

g = acceleration due to gravity

h = height travelled by the system

Since weight, weight = mass * g, we can write the above formula for potential energy as -

[tex]Potential Energy = weight * height[/tex]  ----- (2)

Now, according to the given information in the problem, the work done by the post should be equal to the potential energy of the pile driver.

So, from equations (1) and (2), we can say that -

[tex]W = Potential Energy\\= > Force * distance = weight * height\\= > F * 0.1 = 2500 * 10\\= > F = \frac{2500 * 10}{0.1}\\ = > F = 250,000 N[/tex]

Thus, the average impact force on the ram is 250,000 N.

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A bowling ball of mass 7.25 kg and radius 10.8 cm rolls without slipping down a lane at 3.10 m/s. Then the total mechanical kinetic energy of a bowling ball is 48.8 J.

Given that, mass = 7.25 kg

Radius = 10.8 cm = 10.8/100 m = 0.108 m

Velocity = 3.1 m/s

The total mechanical kinetic energy is nothing but the sum of kinetic energy due to rotation and kinetic energy due to translation. It can be written as

KE = 1/2* m* v² + 1/2* I*ω²

where, I is the moment of inertia of the bowling ball about its centre

ω is the angular velocity

As the ball is in rotation, v = r * ω

And I = 2/5 * m * r²

So, the total mechanical kinetic energy is

KE = 1/2* m* v² + 1/2* I*ω² = 1/2* m* v² + 1/5* m * v²

⇒ 7/10 m * v² = 7/10 * 7.25 * 3.1² = 48.77 J ≈ 48.8 J

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The wavelength of light waves 1.66 × 10⁶m if their frequency is 5.0 x10¹⁴ Hz. Light waves travels with very high speed.

In physical science, the frequency is the spatial time of an occasional wave — the distance over which the wave's shape repeats.[1][2] It is the distance between back to back relating points of similar stage on the wave, like two nearby peaks, box, or zero intersections, and is a quality of both voyaging waves and standing waves, as well as other spatial wave patterns. The reverse of the frequency is known as the spatial frequency. Frequency is regularly assigned by the Greek letter lambda (λ).

For electromagnetic wave ,we know 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.

We know that value of c=3×10⁸m/sec

Therefore, putting the values we get

=>3×10⁸=5.0 x10¹⁴ ×λ

=>λ=(5.0 x10¹⁴) / 3×10⁸

=>λ=1.66 × 10⁶m

Hence, wavelength is 1.66 × 10⁶m.

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52 inches high & 15 inches wide describe a typical four-drawer file cabinet. The cabinet's center of gravity is where it will be if it is equally loaded. To clean below it, an employee is tilting a file cabinet to the side. He tilts the cabinet at a 16.09-degree angle to prevent it from falling over.

The person is free to spin in any direction around this point.

For calculating angles:

H is the parallel to the direction and Tan = H W

the base and breadth of W

In our Situation

H=52 inches

W=15 inches

Tan∅ = 52 ÷ 15

∅ = [tex]Tan^{-1}(\frac{52}{15})[/tex]

∅ = 73.90°.

This is the angle at the corner

The total angle is:

∅ + [tex]\alpha[/tex] = 90

[tex]\alpha[/tex] = 90 - 73.90

[tex]\alpha[/tex] = 16.09°.

Before the cabinet topples over, he tilts it at a 16.09-degree angle.

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The question is -

A standard four-drawer filing cabinet is 52 inches high and 15 inches wide. If it is evenly loaded, the center of gravity is at the center of the cabinet. A worker is tilting a filing cabinet to the side to clean under it.

A. To what angle can he tilt the cabinet before it tips over?

When an electronic or electrical gadget emits heat, it is said to be power dissipating.

An electric or electronic device that releases heat (or other waste energy) as a byproduct of its intended operation is said to be wasting energy (uncountable). Central processor unit power dissipation is a key component of computer architecture.

The process of power dissipation occurs on its own. Each resistor with a voltage drop across it will lose power as a result of the circuit. Due to the conversion of electrical energy into thermal energy, each resistor has a power rating.

A CMOS circuit's overall power dissipation can be expressed as the sum of three key elements: decrease in static power movement causes a loss of power (when the circuit is switching) when transistors are switched, there is a power loss that results in a short circuit.

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The most significant benefit of using two-sided printing with respect to saving energy is that it reduces the amount of paper used.

When printing on both sides of a sheet of paper, the printer uses half as much paper as it would if it were only printing on one side. This means that less paper needs to be produced, which in turn reduces the amount of energy and resources used in the production and transportation of the paper. In addition, using less paper also reduces the amount of waste and pollution generated by the disposal of used paper.

While using two-sided printing may also reduce the amount of energy used by the printer itself.

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A concave mirror has a focal length of 17 cm. the mirror forms an image located 42 cm in front of the mirror. - 1.40 is the magnification of the mirror

A microscope's capacity to generate a picture of an item at a scale that is bigger (or even smaller) than its real size is known as magnification. Only when it is feasible to discern more details of an object in the picture than when examining the object with the unassisted eye can magnification serve a beneficial function.

Given:

A concave mirror has a focal length of  = F = 17 cm

This mirror forms an image located = V =  42 cm

(in front of the mirror)

magnification of the mirror= M = ?  (Include the sign.)

It is known by the formula mirror

1/ F = 1/U + 1/V

where U is the distance  of the object form mirror = U = ?

thus,  FV / (V - F)  = U

or, (17)×(42) /(42 - 17) = 28.56 cm

thus, U = 28.56 cm

So, magnification of the concave mirror:

M = - V / U

or, M = - 40 cm / 28.56 cm

or, M = -  1.40

thus, magnification, M = - 1.40  

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The cycle of water or H₂O evaporating from lake and other bodies of water forming clouds and rain back to the surface of the earth happens in hydrosphere and stratosphere.

Hydrosphere is defined as water that is on the earth including surface of the planet such as ocean, lake and ice, underground source of water such as groundwater, as well as moisture in the air. The water, also known as H₂O gets heated up by the sun, evaporates into the air forming clouds happen in the atmosphere of the earth, specifically stratosphere, where most of the clouds are forming. After the clouds can no longer hold the accumulation of vaporization of the water, it will eventually get released back into the earth in the form of rain or snow.

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In a particle system of smoke, color over Lifetime is used to change the dense black, to semi-transparent gray and finally white.

The Color over Lifetime module permits you to change the Color and Alpha qualities over time.

The Force over Lifetime module permits you to add wind-impacted articulations to Particles.

For instance, on the off chance that you set it as displayed in the picture, it will appear as though the breeze is blowing to one side.

The Limit Velocity over Lifetime module permits you to dial back the development of a molecule.

This permits you to execute articulations like air opposition.

In the Speed field of the Limit Velocity over Lifetime module, you can enter the speed that outcomes from the deceleration because of air opposition.

Dampen is the magnitude of the air resistance.

Set Start Speed to 20, Speed in the Limit Velocity over Lifetime module to 0, and Dampen to 0.1.

Assuming Hose is set to 0.1, the speed of 20 will continuously move toward 0 lastly stop.

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Answer:

answer is metals

In this collision, 1/2 of the initial kinetic energy of the first glider is converted into thermal energy.

An object's strength as a result ofstrength an object has as a result or motion is known as kinetic energy. Toorder to accelerate an object, a force must be applied. Applying force requires effort on our part. When the work is done, power is transported to the thing, which causes it to move at the athe new, constant pace.

The motion energy is known as kinetic energy, and it is manifested when a particle, object, or group if particles moves. Any moving object uses kinetic energy, including people walking, baseballs being thrown, food falling from tables, and charged particles in electric fields.

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The gravitational force exerted on the moon while it is in orbit around the planet be 1×10¹⁸ Newton.

Newton's law of universal gravitation states that: The force of attraction between any two bodies is inversely proportional to the square of the distance between them and directly proportional to the product of their masses.

Given parameters:

Mass of the moon = 1×10²² kg.

The gravitational field strength at distance R from the planet is 0.001 N/kg.

Hence,  the gravitational force exerted on the moon = 0.001 N/kg ×  1×10²² kg.

= 1 × 10¹⁸ N.

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For 500nm the second order maxima 2m away would be 1cm

For 650nm the second order maxima 2m away would be 1.12 cm

Maxima and minima are the maximum or the minimum value of a function within the given set of ranges.

The separation between the second order maxima is: ymax=2cm y max = 2 c m .

Assumption of infinite source distance gives plane wave at  slit. So, all amplitudes are in phase.

Here, sepration between 2nd order maxima will be given by

= 2(yd) = 2 (m+1/2) lamda×D/d

= 2 (2+1/2) lamda D/d = 5 lamda D/d

Here, d= 0.50mm=0.50×10^-3m

D=2m

For lambda = 500nm

Separation = 5 lamda D/d = 5(5×10^-7m)(2m)/(0.5×10^-3m) = 1 CM

For lamda = 650nm

Separation = 5 lamda D/d= 5(650×10^-9m) (2m) /(0.5×10^-3m) = 1.12cm

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It will take 1.1824 min for the reactant concentration to decrease from 0. 13 m to 0. 088 m.

K = 0.33/min

for first-order reaction

K×t = ln([A0]/[A])

[A0] = 0.13 M

[A] = 0.088 M

t = ln (0.13/0.088)/0.33 = 1.1824 min

A first-order reaction depends on the awareness of the most effective reactant (a unimolecular response). other reactants may be present, however, their attention has no impact on the fee. The fee regulation for a primary order response is --d[A]/dt = okay[A],

Although not affecting the above math, the general public of first-order reactions continues through intermolecular collisions. Such collisions, which contribute the electricity to the reactant, are always 2nd order. The fee of those collisions is, but, masked via the reality that the price determining step stays the unimolecular breakdown of the energized reactant. The half of-existence is impartial of the beginning awareness and is given with the aid of t1/2 = In(2)/k

In organic chemistry, the class of SN1 (nucleophilic substitution unimolecular) reactions includes first-order reactions. for instance, in the reaction of aryldiazonium ions with nucleophiles in an aqueous solution, [ArN2+] + X− → ArX + N2, the fee equation is v0 = ok[ArN2+], wherein Ar shows an aryl group.

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Lists galaxy types in terms of star formation rate from making the most stars to making the fewest stars

1. Starburst galaxies

2. Irregular galaxies

3. Spiral galaxies

4. Elliptical galaxies

1. Starburst galaxies: These galaxies have the highest star formation rate, making up to 1000 times more stars than the Milky Way. This is due to their high gas content, which allows them to form stars quickly.

2. Irregular galaxies: These galaxies have an intermediate star formation rate compared to other types of galaxies. This is because they have an irregular shape, which allows for different regions of gas to form stars at different rates.

3. Spirals galaxies: These galaxies have a moderate star formation rate, usually making up to 10 times more stars than the Milky Way. This is due to the presence of spiral arms, which direct gas towards the nucleus where it can form stars.

4. Elliptical galaxies: These galaxies have the lowest star formation rate, usually making up to 1/10th of the stars the Milky Way does. This is because they contain very little gas and dust, which are necessary for star formation.

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