Another piece of copper has a volume of 7 cm3 what is its mass?

The relationship between the mass of a student and the amount of work they do is that the greater the mass, the more work.

This is referred to as any type of activity which requires the use of physical or mental effort by an individual or thing.

In a scenario where an individual has a greater mass then there will be more work done and vice versa as a result of the formula of work being Force × distance where the Force = mass × acceleration which therefore  explains the relationship between the mass of a student and the amount of work they do.

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The questions is incomplete so I answered it in general way.

I= 1/L∫Vdt, where I is the current flowing through the inductor, L is the inductor's inductance, and V is the voltage across the inductor, is the formula that determines the inductor current depending on these input parameters. You will frequently come across the expanded formula I= I0 + 1/L∫Vdt.

A passive two-terminal electrical device known as an inductor, also known as a coil, choke, or reactor, stores energy in a magnetic field as electric current passes through it. Typically, an inductor is made out of insulated wire twisted into a coil.

According to Faraday's law of induction, when the current through the coil changes, the time-varying magnetic field induces an electromotive force (emf) (voltage) in the conductor. Lenz's law states that the induced voltage has an opposing polarity (direction) to the change in current that caused it. Inductors so reject any changes in the current flowing through them.

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The zygote has only one cell. The embryo has many cells. A zygote is known as a zygocyte in medicine. A diploid eukaryote is the name given to the embryo. During the zygote's mitosis, an embryo is created.

A stage after the zygote stage is an embryo. Fertilization is the process that creates the zygote. Human blastocyst (day 5), also known as a blastula, is the term used to describe the hollow cellular mass that develops in the early stages of development. The blastocyst is made up of cells that form an inner cell mass (ICM, embryo blast), an exterior trophectoderm (TE, trophoblast) layer, and a blastocoel (fluid-filled cavity). The first week after conception is when the zygote stage develops. The mix of DNA in the zygote's genome is.

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The energy of the electromagnetic radiation from the microwave is equal to 5.96 × 10⁻²³ J.

The energy carried by one photon of any electromagnetic radiation is known as photon energy. This energy is directly proportional to the frequency of electromagnetic radiations and inversely proportional to their wavelength.

To calculate the energy of the photon, we can use the following relation:

The mathematical formula of energy of photon: E = hc/λ

where E is energy, h = Planck's Constant is equal to  6.626 × 10⁻³⁴ Js and c = speed of light = 3 ×10⁸ms⁻¹, λ is wavelength of light

Given, the frequency of the electromagnetic radiation, ν = 90 GHz

ν = 90 ×10⁹ Hz

The energy of one photon microwave radiations is equal to E = hν

E = 6.626 × 10⁻³⁴Js ×  90 ×10⁹ s⁻¹

E = 596.34 × 10⁻²⁵

E = 5.96 × 10⁻²³ J

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The time taken for the bullet to reach the ground is  0.447 s

What is free fall?

Free fall is a concept of motion where an object is falling under the force of gravity and is only subjected to the force of gravity. It is experienced by objects that are not subject to any other type of force such as air resistance or drag. Examples of objects in free fall include an object dropped from a certain height, a skydiver in a belly-to-earth position, a spacecraft in orbit, or an object thrown upwards and then falling back down. A free fall can be thought of as a state of weightlessness, since the object is not subject to any other force, and is accelerating at a rate of 9.8 m/s2 (or 32 ft/s2). This acceleration is due to gravity and is known as the acceleration due to gravity.

Height from which the bullet id fired, h  = 0.981 m

initial velocity of the bullet, u₁ = 981 m/s

Since it is fired parallel to the ground , the initial velocity u₁ does not have a vertical component

So it will be a free fall

Therefore the time taken to reach ground , t =√(2h/g)

t = √(2 * 0.981 / 9.81)
 = √(1/5)
 = √0.2
t  =  0.447 s
Therefore the time taken for the  bullet to reach the ground is  0.447 s

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To observe the impact of the herbicide on the molecular structures inside plant cells, a microscope with high resolution and the ability to visualize small structures would be the best tool for this research. One option that could be suitable for this purpose is a transmission electron microscope (TEM).

A transmission electron microscope uses a beam of electrons to produce an image of the sample being studied. It has a higher resolution than a light microscope, and it is able to visualize structures as small as 0.2 nanometers in size. This makes it an ideal tool for studying the molecular structures inside cells, including proteins, DNA, and other cellular components.

Another option that could be used for this research is a scanning electron microscope (SEM). A scanning electron microscope uses a beam of electrons to produce a detailed, three-dimensional image of the surface of a sample. It has a lower resolution than a TEM, but it is able to visualize larger structures and features on the surface of cells.

Both TEMs and SEMs are powerful tools for studying the structures and functions of cells and molecular processes, and they are commonly used in scientific research and other applications.

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The angle measure of the turn is 105 degrees.

Acute Angle: An acute angle is one that is less than 90 degrees. Right Angle: A right angle is one that is exactly 90 degrees. Obtuse Angle An angle larger than 90 degrees is referred to as an obtuse angle.

An automobile moving in the direction of Ward Street on Michigan Street. Onto Ward Street, the automobile intends to turn right. the Ward Street angle is as follows: Michigan St Pennsylvania St The turn's angle is measured as

Since 75+x = 180 (a straight line)

Then x = 180-75=105

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Frictional force that is produced when two surfaces attempt to move in one direction or in opposite directions is known as frictional force. the primary objective of frictional force.

Lever. A rigid piece of material is put over what is known as a fulcrum to form a lever. On one ends of the lever, which is also known as the resisting force, is an object that must be lifted. To lift the frictional resistance, effort is applied at the opposite end of the level.

Friction is resistance brought on by rubbing surfaces together, such as the stylus' tip and an object. Viscosity is a fluid's resistance to movement, such as water.

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The correct response is 86.913 amu for Rb-87's mass.

Two isotopes of the rubidium (Rb) element exist: Rb-85, which has an atomic mass of 84.9117 amu, and Rb-87, which has an atomic mass of 86.9092 amu. Rubidium has an average atomic weight of 85.4678.

Both isotopes have a ratio of 2.591 to 1. Consequently, there is one Rb-87 atom for every 2.591 Rb-85 atoms.

Rb-85 abundance is 2.591/3.591 = 0.722% for 100% naturally occurring Rb, while Rb-87 abundance is 1 - 0.722 = 0.278.

84.9117 × 0.722 + X × 0.278 = 85.4678

X = 24.1618 / 0.278 X = 86.913 amu 61.306 + X 0.278 = 85.4678 X 0.278 = 85.4678 - 61.306 X 0.278 =86.913

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It's kind of in the definition of what 1 is to say that 1 to the power of anything is 1. You can use complicated powers, but the outcome will always be 1.

The simplest method for determining a number's nth power is to multiply it exactly n times. In this situation, we might simply calculate pow(2,-3) = 1/(23), which is the inverse of its positive power.

Divide both sides by the left-hand integer to create a ratio with the notation 1: n. Divide both sides by the right-hand integer to represent the ratio as n: 1. to check if you're right.

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From 936 firms in 2010 through 3,317 firms in 2021, more businesses reported Scope 3 pollutants in the available CDP dataset.

A zero-carbon economy is being implemented around the world.The Research Based Goals initiative (SBTi) is working with more over 4,000 companies and financial institutions to cut their emissions in accordance with climate science.Learn more about their commitments and goals.

Needed to make an informed transportation decisions, selecting which products or vendors to use, and pushing their suppliers to cut their own emissions are all ways that businesses can lower their Scope 3 emissions.

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I may or may not  see object in the dark room or outside the room because it all depends on the presence of light.

We realize that we can see an item when light reflected from its surface enter our eyes.There is no light in obscurity room .As there will be no light in obscurity room there will be no reflection. So we can not see any item in the room, In the event that there is light external the room, we will actually want to see object outside the room. This is on the grounds that the light reflected from object make picture in our eyes. So on the off chance that there is no light we will not ready to see, assuming there is light we will ready to see.

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If  the point on the arm hanging the bob and the pointer are not on the same vertical line then the torque applied by the bob will not be zero.

When the point of arm and the pointer are in same vertical line than the angle between the point of arm and pointer will not be zero. We know that  Torque is defined as the cross product of distance of  point where force is applied  and force applied on the body.

In other words, Torque=distance × Force

or Torque=rFsinθ(since cross product involves sinθ) where r is the distance and F is the applied force.

Since angle is not zero, therefore angle(θ) will be greater than zero,so sinθ have some value which is greater than zero,and it is enough to rotate the system from its equilibrium point.Due to torque,system will become unstable.

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(Complete question) is:

If a metal bob is rotated in a uniform circular motion in this experiement, what would be the effect if the point on the arm hanging the bob and the pointer are not on the same vertical line?

Currently, contemporary sonar technology has only been used to map fewer than 10% of the world's oceans. Only around 35% of the ocean and coastal waterways in the United States have been mapped using contemporary techniques.

Why don't we investigate the ocean's bottom?

It is challenging to attempt to travel to the ocean's depths. Between 4,000 and 6,000 metres below sea level is where the majority of the ocean bottom is located. The abyssal zone is what it is termed. The visibility is really poor because the sunlight doesn't penetrate very far down. Ocean trenches are a few smaller, deeper regions that exist beneath the ocean floor. Seamounts, volcanic islands, mid-oceanic ridges and rises, and seamounts are features that rise up from the ocean floor.

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The function NSolve("Equation", "Variable = starting value") generates a list of numerical solutions for the given equation for the specified unknown variable and its starting value.

Searches for solutions over the domain of real numbers in an effort to obtain numerical approximations to the solutions of the system of equations or inequalities for the variables vars.

There are some equations that have infinitely many or no solutions. When simplified, equations without solutions won't have the same value. The same constant will be used on both sides to simplify equations having infinite solutions. An inconsistent system is a set of equations that cannot be solved.

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E = hv is the energy equation. In the formula, E stands for energy, h for Planck's constant (6.626 x 10 -34 J s), and v for frequency. Since frequency rises as energy falls, frequency and energy are related directly in the energy equation. Because h is a constant, this is conceivable.

Each quantum's energy content is directly influenced by the radiation's frequency. Since the relationship between frequency and wavelength is inverse, the amount of energy carried is also inversely proportional to wavelength.

The link between the energy E and frequency v of a photon is expressed by the equation E=hv, where h is Planck's constant.

In essence, energy is directly proportional to radiation frequency but inversely proportional to wavelength. As a result, energy increases when frequency or wavelength decreases and decreases when frequency or wavelength increases.

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Consequently, if =3, vectors are perpendicular to one another.

Greek letter lambda is part of the alphabet.

Lambda is mostly used as a variable in physics to indicate or denote the wavelength of any wave.

Lambda is the term used to describe the radioactive decay constant in nuclear physics and radioactivity.

Lambda is also used to refer to the linear charge density of a uniform line of electric charge in electric fields.

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The term "cutoff" in theoretical physics refers to an artificial maximum or minimum value of energy, momentum, or length that is used to exclude objects having values that are more or smaller than these physical quantities from calculations.

A cutoff frequency, also known as a corner frequency or break frequency, is the frequency response threshold at which energy begins to be attenuated (reflected or diminished) rather than pass through a system.

The frequency above or below which the power output of a circuit, such as a line, amplifier, or electronic filter (such as a high pass filter), has decreased to a specific percentage of the power in the passband is known as the cutoff frequency or corner frequency in electronics.

The passband power, commonly known as the 3 dB point since a decline of 3 dB roughly equates to half power, is the proportion that occurs most frequently. The voltage ratio is falling in this case.

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Answer:

A mass spectrometer uses a magnetic field to separate ions based on their mass-to-charge ratio. The mass of an ion can be calculated from its charge, velocity, and the radius of curvature of its path in the magnetic field, using the formula m = (qBv)/(2πr), where m is the mass, q is the charge, B is the magnetic field, v is the velocity, and r is the radius of curvature.

In this case, the magnetic field is 5.00 mT, the charge of the unknown particle is 2e, and its velocity is 100 m/s. The radius of curvature of the ion's path is measured to be 1.67 mm. Plugging these values into the formula above, we get:

m = (2e * 5.00 mT * 100 m/s) / (2π * 1.67 mm) = 0.24 g/mol

Therefore, the mass of the unknown particle is 0.24 g/mol.

To determine which element the particle is, we can use the periodic table to find an element with a mass-to-charge ratio of 0.24 g/mol. The element with the closest match is magnesium (Mg), which has a mass-to-charge ratio of 24.31 g/mol. Therefore, the unknown particle is likely to be a magnesium ion (Mg²⁺).

To run a wire from a receptacle in one room to a switch and receptacle in another room, you will need to follow these steps:

That electrical work can be dangerous and should only be performed by a qualified electrician. If you are not comfortable or familiar with electrical work, it is recommended that you hire a professional to complete the job for you.

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Thus, from largest wavelength radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, and ultimately gamma rays, which have the shortest wavelengths, are available.

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Answer:

Radon and helium both of which form during the decay of heavier elements in bedrock.

The model will be just like the real solar system when it shows the moon and other satellites revolve around the earth.

Heliocentric model is the most accepted model of the solar system. Heliocentrism is the astronomical model in which the Earth and planets revolve around the Sun at the center of the universe.

The moon and the other satellites revolve around the earth due to the force of gravitation. The moon orbits the Earth once every 27.322 days. It also takes approximately 27 days for the moon to rotate once on its axis. As a result, the moon does not seem to be spinning but appears to observers from Earth to be keeping almost perfectly still. Scientists call this synchronous rotation.

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The fundamental relationship between recessional velocity and distance is known as Hubble's law. The relationship between recessional velocity and redshift, excepting very small redshifts, depends on the cosmological model used.

One observational consequence of the expansion is that galaxies appear to move away from you more quickly the further they are from you. As a result, the recessional velocity and distance are related. The Hubble's Law is the name of this phenomenon.

In big bang cosmology, the Hubble law postulates that galaxies move away from the Earth at a rate that is proportional to their distance.

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a) The  magnitude of the velocity of the aircraft P relative to aircraft Q is 424 m/s

b) The  direction of the velocity is 45  degrees.

We know that the relative velocity has to do with the velocity of the object that is the same in magnitude and direction as the velocities of two or more objects together.

As such we have the velocities of the objects as;

P = 300 m s¯¹

Q = 300 m s¯¹

Since they are at right angles, the resultant is;

R = √(300)^2 + (300)^2

R = 424 m/s

b) The direction of the velocity is obtained as;

tan-1 = (300/300)

= 45 degrees

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The birds' collective momentum is in the same direction as a goose's, i.e., the right way, but the goose's momentum is more than that of two ducks.

       0=-2md vd + mg vg

       2md vd/ mg = v g =2 (40) (1.1) /7.6kg

       vg =1.2m/s

       when total momentum is set to zero.

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If a lathe turning at a feed rate is used to decrease a long section the stock metal rod's diameter from a diameter of to, the material's specific energy M RR = 109.96 cm3/min.

At any cross-section section of a canal, measured just above channel bottom, the total energy per cent weight of fluid. Where y is the flow depth, v seems to be the average velocity, & g is gravitational attraction, makes up the formula for specific energy, or E.

The proportion of necessary energy (E) towards the volume of removed material is referred to as specific energy (SE) (V). This variable can be used to calculate how much energy is expended on removing material.

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The magnetic field produced by a conductor that is carrying current relies on the conductor's current and the point's distance from it. The magnetic field runs parallel to the wire in a perpendicular direction.

Given by r = 2 m and B = 5, the magnetic field strength created by a straight wire carrying current is 5. Inquiry 4: As seen in the diagram below, a straight conductor carrying a current of 10A is parallel to another conductor carrying a current of 5A on the other side. Since all closed-loop currents make their own magnetic fields and magnetic fields operating on closed-loop circuits may produce current, magnetism and electricity are closely related. Oersted made the discovery that electric current had a magnetic influence.

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Answer:

Below

Explanation:

The time it take the ruler to fall .083 m is given by

  d = 1/2 a t^2       d = .083 m   a = 9.81 m/s^2

       t = .13 s