Which has the events in the right order, from early to late?

a. Quark soup
b. protons form
c. nucleosynthesis
d. atoms form
e. estar formation.

Reliability refers to the consistency of a measure. For example, in an investigation, if a measuring device consistently produces the same results when used to measure the same quantity, it can be considered reliable.

Validity refers to the accuracy of a measure. In an investigation, if a measuring device accurately reflects the true value of the quantity being measured, it can be considered valid.

Precision refers to the degree to which repeated measurements of the same quantity agree with one another. In an investigation, if a measuring device produces results that are consistently close to one another, it can be considered precise.

For example, in an investigation to determine the weight of a substance, a reliable, valid, and precise scale would consistently produce the same weight measurement for the substance each time it is weighed, and the measurement would accurately reflect the true weight of the substance.

the rod reaches a steady speed, it accelerates to the right.continues to move.

A displacement how an object or particle experiences with regard to time is expressed vectorially as velocity.One meter / second (m/s) is the accepted unit of flow speed (also known as speed).

Velocity is the pace and direction of the an object's movement, whereas speed is the timekeeping that an object is travelling along a path.In other words, velocity is a vector, whereas speed is indeed a scalar value.

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The net force acting on the ball is 240 Newtons.

We know that force applied at a particular instant is equal to the mass of the particle (or object ) times the acceleration of the particle at that particular instant.  

Also, force is defined as the rate of change of momentum of a particle at that instant.

But in this problem we have to use force on the particle at the instant is equal to the mass of the particle times the acceleration of the particle at that instant.

So, we have been given the mass of the particle as 20 kg and the acceleration of the particle as 12 m/s² .

So-net force on particle = 20*12 =240 Newtons.

Hence, the net force on the ball is equal to 240 Newtons.

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The vernal or spring equinox occurs in the northern hemisphere on March 21 or 22.

The terms "amplitude" and "wavelength" refer to a maximum deflection from the mean location and the total distance traveled by a vibrating particle, respectively.The frequency refers to the number of full vibrations per second, similarly.

The wavelength of a wave is the distance that separates two adjacent crests or troughs.

Measured from the wave's highest point (peak and crest) to its lowest point, the amplitude of the wave indicates its height (trough).Wavelength is the distance a wave travels between peaks.

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The density of the tennis ball = 0.38 g/cm³

The density of the golf ball = 1.13 g/cm³

The mass of the tennis ball = 56 g

The volume of the tennis ball = 149 cm³

The density of the tennis ball can be found using the formula,

            d = m/v

where d is the density

          m is the mass

          v is the volume

Let us substitute the known values in the above equation, we get

           d = 56 / 149

              = 0.38 g/cm³

The mass of the golf ball = 45.9 g

The volume of the golf ball = 40.68 cm³

The density of the golf ball is

               d = m/v

Let us substitute the known values in the above equation, we get

               d = 45.9 / 40.68

                  = 1.13 g/cm³

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Answer: tennis ball 0.07   golf ball 1.15  

Explanation:

Solar energy is harnessed using three basic technologies: photovoltaics (PV), which directly converts light to electricity; solar thermal energy; and solar thermal energy.

Concentrating solar power (CSP), which uses solar thermal energy to power utility-scale electric turbines; and solar heating and cooling (SHC) systems The photovoltaic effect, or photovoltaics, is the method of directly generating energy from solar radiation. Photovoltaics is probably the most well-known method of harnessing solar energy today. Photovoltaics (PV) and concentrated solar-thermal power are the two main forms of solar energy technology (CSP). the first commercially feasible perovskite solar cells, which can be produced at room temperature and use less energy than silicon-based solar cells.

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Answer:

Gravitational force.

Electric force.

Magnetic force.

Nuclear force.

Frictional force.

YES.instances of scope Employee travel & commuting are 2 emissions.

journeys for work. bought products and services.

Scope 3 emission are the outcome of operations on resources that the reporting company does not own or control, but which are indirectly impacted by the organization through its value chain.All sources outside of an organization's range 1 & scope 2 boundary are included in scope 3 emissions.

Although they emanate from sources that company doesn't own or control, scope 3 emissions are a byproduct of corporate operations.

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The recessional velocity of the galaxy is 2.70×10⁻³km/s

Simply put, recessional velocity is the speed at which an item is moving away from the observer. The Doppler Effect and redshift both depend heavily on this idea. The recessional velocity in the Doppler Effect can be determined by extrapolating the wavelength of the waves from their rest wavelength.

We are given that,

Velocity = v = 25000 km/s

Distance = d = 108 light years

Hubble's law states: If the galaxy's moving velocity is given by v, and its distance from Earth is given by d, and H is the Hubble constant, we can write as,

v = H×d

v = (25 km/s per million light years)×108 light years

v = (2.5×10⁻⁵ km/s per light years)×108 light years

v = 2.70×10⁻³ km/s

Therefore, the recessional velocity of the galaxy is 2.70×10⁻³ km/s.

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If you neglect friction it can 68600 high coast up the hill and 21400J energy is lost to friction if the motorcycle only gains an altitude of 35.0m before coming to rest.

Only because transformed of kinetic energy into potential energy.
at the minimum height the p-e is minimum but k-e maximum ,also in maximum height p-e  is maximum but k-e is minimum.

Given, mass of motorcycle  

(m)=200kg

speed(v)=300m/s

we have from kinematic equation

v^2=u^2-2gh

at the maximum height(h) final speed v=0

=u^2-2gh=0                      AS  G=9.8M/S^2

=H=U^2/2G

H=(30.0)^2/2X9.8

H=45.92M THIS IS HEIGHT.

GIVEN H=35.0M

At the height h=35.0m,

we have the potential energy ( p.e) v= mgh

 v=200x9.8x35.0  

 v=68600

again the kinetic energy (k.e)=1/2mr^2

=1/2x(30.0)^2x200

=90000J

so the energy lost, (90000-68600)J

=21400J

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The sonar systems calculate the time each pulse takes to reach the seafloor and return, then translates those times into water depths, allowing us to uncover the bathymetry below us.

Multibeam sonar signals are sent out from the ship. With about 1500 sonar soundings sent out per second, multibeam “paints” the seafloor in a fanlike pattern. This creates a detailed “sound map” that shows ocean depth, bottom type, and topographic features.

Sonar, short for Sound Navigation and Ranging, is helpful for exploring and mapping the ocean because sound waves travel farther in the water than do radar and light waves.

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Enthalpy Changes the overall energy change in the substance portrayed in the graph at  48°C which is the state of equillibrium.

Mass (m) = 0.3 Kg

Initial temperature (T1) = 20°C

Heat (Q) added = 35 KJ

Specific heat capacity (C) = 4.18 KJ/Kg°C

Final temperature (T2)

The final temperature of water can be obtained as follow:

Q = MC(T2 – T1)

35 = 0.3 x 4.18 (T2 – 20)

35 = 1.254 (T2 – 20)

Clear the bracket

35 = 1.254T2 – 25.08

Collect like terms

1254T2 = 35 + 25.08

1.254T2 = 60.08

Divide both side by the coefficient of T2 i.e 1.254

T2 = 60.08/1.254

T2 = 47.9 ≈ 48°C

Therefore, the final temperature of the water is 48°C.

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The figure shows the gears A, B, C, D. The minimum required diameter of the shaft is d = 25 mm.

The angular velocity of the shaft,

ω = 600 rev/min × 1/60 min/s × 2π rad/rev = 20 π rad/s

The torque exerted on the gears A, C, D are

T a = P a/ω = 6(10³)/20π = 95.49 N m

T c = P c/ω = 4(10³)/20π = 63.66 N m

T d = P d/ω = 5(10³)/20π = 79.58 N m

Segment BC of the shaft is critical as it is subjected to a greater internal torque.

τ a = T bc C/J

75 × 10⁶ = 143.23(d/2) /[ π/2 × (d/2)⁴]

d = 0.02135 m = 21.35 mm

According to observation, gear D's relative twist angle to gear B is the largest.

The requirement Ф b/d = Σ ([Ti Li)/(Ji Gi)] = 0.05

T bc L bc/ (J Gst) + T cd L cd/ (J Gst) = 0.05

0.6/ [ π/2 × (d/2)⁴ 75 × 10⁹] × (143.24 + 79.58) = 0.05

d = 0.02455 m = 24.55 mm ≈ 25 mm

Thus, the minimum required diameter of the shaft is d = 25 mm.

The question is incomplete. The complete question is 'If the shaft is made of steel with the allowable shear stress of τ a = 75 M Pa, and the relative angle of twist between any two gears cannot exceed 0.05 rad, determine the required minimum diameter d of the shaft to the nearest milli meter. The shaft is rotating at 600 rpm.'

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The normal force decreases as the angle of the incline increases, which reduces the frictional force.

By using the normal force of the plane to offset the gravitational force, inclined planes also enable the safe vertical descent of heavy, fragile objects, including people. Moving an object uphill requires force because an inclined plane increases the force that the user applies. An inclined plane is a straightforward device that consists of a sloping surface connecting two elevations. It is employed to transport objects more conveniently to higher elevations.

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The thermal conductivity of a product is measured in units of W/mK by the lambda value, which is also referred to as the "K-value" or "-value."

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To be carbon neutral we need  to offset your remaining emissions, which can be done by making financial contributions to initiatives that reduce atmospheric concentrations of greenhouse gases.

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The volume of a block that has length of 4cm, width 2cm, and height 1cm  in meters is 8 * [tex]10^{-6[/tex] m³.

How to calculate the volume of this block in meters?

The volume of block is basically multiplying the length, width, and height. Also, we can write the formula for volume in terms of the area of the base. The area of the base, B, is equal to length times width.

Given from the question
Length = 4cm = 0.04m

width = 2cm = 0.02m

height = 1cm = 0.01m

Volume of the block = length * width * height

= 0.04 * 0.02 * 0.01

= 8 * [tex]10^{-6[/tex] m³

Therefore, the volume of the block is 8 * [tex]10^{-6[/tex] m³.

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The temperature of the upper disk T1​;

Let's now think about the net rate of radiation from the upper disk. If we take a look at the given figure we will notice that the heat is transferred by radiation from surface A1​ to both lower disk of surface A2and the surroundings. So, we will write the net rate of heat transfer from A1as:

Q˙​1​​=Q˙​12​+Q˙​1,surr​

where: σ=5.67⋅10−8 W m2K2σ=5.67⋅10−8 m2K2 W​.

According to eq. (2), the unknown values that have to be determined in order to calculate T2 are:

 Surface area A1A1​;

 The view factors F12F12​ and F1,surrF1,surr​.

The surface area A1A1​ is the surface of the disk, calculated using the well-known equation:

A1=D12π4=0.22π4=0.0314 m2

This was easy. Let's move on to a little bit more difficult part, which is determining the view factors.

We will now calculate the view factor F12F12​. Since surfaces A1A1​ and A2A2​ are coaxial parallel disks, the view factor will be determined using the following expression:

Remember that distance between the disks is given to be:

L=0.2 m

L=0.2 m

Therefore, we will calculate SS as:

S=1+1+(0.20.2)2(0.10.2)2=1+1+0.520.52=9

Now, let's substitute values to eq. (3) and determine the view factor from the upper to the lower disk:

F12​​=21​⎝

⎛​9−[92−4(0.10.2​)2]1/2⎠

⎞​=0.47​

Next, by applying the summation rule for surfaceA1A1​, F1, surrF1, surr​ will be determined:

F11+F12+F1, surr=1F1, surr=1−F11−F12=1−0−0.47=0.53

Note: The disk is a plate surface that can not see itself. Therefore, the view factor from the plate surface to itself is equal to zero: F11=0F11​=0.

Now, that we have all the values we need, by substituting them into eq. (2), it follows:

17.5=1⋅5.67⋅10−8⋅0.0314⋅[0.47⋅(T14−5004)+0.53⋅(T14−3004)]17.5=0.178⋅10−8⋅[0.47⋅(T14−5004)+0.53⋅(T14−3004)]

17.517.5​=1⋅5.67⋅10−8⋅0.0314⋅[0.47⋅(T14​−5004)+0.53⋅(T14​−3004)]=0.178⋅10−8⋅[0.47⋅(T14​−5004)+0.53⋅(T14​−3004)]​

Finally, if we rearrange the previous equation, we will calculate the temperature of the upper disk:

0.08366⋅10−8⋅T14+0.09434⋅10−8⋅T14=17.5+49.94+7.640.178⋅10−8⋅T14=75.08T14=75.080.178⋅10−8T1=421.8⋅1084=453.2 K

0.08366⋅10−8⋅T14​+0.09434⋅10−8⋅T14​0.178⋅10−8⋅T14​T14​T1​​=17.5+49.94+7.64=75.08=0.178⋅10−875.08​=4421.8⋅108

​=453.2 K​​

Therefore, the required value of T1​ is obtained and our problem is solved.

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Answer:

1.Newton's third law

2.Newton's third law

3.Newton's second law

4.Newton's first law

5.Newton's second law

6.Haha I don't know about this but by inference it is Newton's first law.

Explanation:

wavelength of the photon is 300 nm

using ν= c/λ,

where c ⇒ speed of light =3x10⁸ m/s

λ⇒wavelength of light = 300 nm

frequency⇒ν=(3x10⁸)/(300X10⁻⁹)

so, ν= 10¹⁵ s⁻¹ is the frequency of photon of wavelength 300 nm.

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Because the electrons travel more quickly under pressure and have more kinetic energy, they eventually leap into a broader orbit. The energy that was previously held in every electron will transform into potential energy.

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Precursors are the building blocks or the starting materials that the body uses to synthesize neurotransmitters. The correct answer is 5. precursor.

Neurotransmitters are chemical messengers that transmit signals between nerve cells in the brain and the rest of the body.

Here,
Precursors are the building blocks or the starting materials that the body uses to synthesize neurotransmitters. The process of neurotransmitter synthesis involves a series of enzymatic reactions, where precursors are transformed into neurotransmitters and stored in synaptic vesicles.

When a nerve impulse reaches the end of a neuron, the synaptic vesicles release the neurotransmitters into the synaptic cleft, where they bind to receptors on the postsynaptic neuron and transmit the signal. The neurotransmitter molecules are then either reabsorbed by the presynaptic neuron or broken down by enzymes, such as those involved in neurotransmitter degradation.

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Greater energy is correlated with shorter wavelengths and higher frequencies. Therefore, lower energy is produced by longer wavelengths and lower frequencies. E = hv is the energy equation.

The frequency & energy (E) of a wavelength drop as it grows in size. You may conclude from these equations that the wavelength shortens with increasing frequency. The wavelength lengthens with decreasing frequency. Mechanical and electromagnetic waves are the two main categories of waves.

Wavelength and frequency are inversely proportional to one another. The wavelength of a wave that has a high frequency is also its shortest. Half the wavelength corresponds to frequency multiples of two. The wavelength ratio is hence the polar opposite of the frequency ratio.

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Answer:

the law of interaction, says that if one body exerts a force on a second body, the second body exerts a force equal in magnitude and opposite in direction on the first body. It's the law of action-reaction, and it helps to explain why you feel a jolt when you collide with another bumper car.

Heavier cars have more momentum, so they travel further, given the same amount of friction.

Explanation:

If the weight lifter moves the weights at a steady speed, the amount of work he performs is W = 462 J.

an object's work is equal to the product of the force it is subjected to and the distance it travels.

W = Work Done, where W = F d

Force: F

Displacement equals d

The factors in this situation are as follows:

F = 280 N for the sets, and d = 1.65 m for the vertical distance traveled.

W = (300 N)(2.15 m)

W = 462 J.

Assuming the weight lifter moves the weights at a constant speed, the work he performs is W = 462 J.

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The magnitude of the average voltage induced in the coil is 12.5 volt.

It is the creation of a potential difference in a coil as a result of variations in the magnetic flux flowing through it. To put it another way, it is said that electromotive force, or EMF, is created when the flux connecting with a conductor or coil changes.

Given that: a circular coil with an area of 0.0500 m^2 is wrapped with 500 turns of wire and the magnetic field changes in value from -0.100 T to 0.150 T in an interval of 0.500 s.

Hence, the magnitude of the average voltage induced in the coil is =

N ( B₂ - B₁) A/t

= 500(0.150 - (-0.100))0.0500/0.500 volt.

= 12.5 volt.

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The the velocity which the water flow out of the tank  is  29.698 m/s

What is Bernoulli's principle?

It gives the relationship between pressure, kinetic energy, and gravitational potential energy of a fluid in a container .

P₁ + 1/2ρv₁² + ρgh₁ = P₂ + 1/2ρv₂² + ρgh₂

Since it is a open tank,

P₁ = P₂ = P₀ , atmoshperic pressure

h₁ = 50m

h₂ = 5m

v₁ = 0

Applying Bernoulli's principle

P₁ + 1/2ρv₁² + ρgh₁ = P₂ + 1/2ρv₂² + ρgh₂

P₀ + 0 + ρgh₁ = P₀ + 1/2ρv₂² + ρgh₂

ρgh₁ = 1/2ρv₂² + ρgh₂

v₂ = √(2g(h₁-h₂))

  =  √(2×9.8(50-5))

 =  29.698 m/s

Therefore the velocity which the water flow out of the tank  is  29.698 m/s

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Answer: Calculate the slope.

Explanation:

Answer:

B. Calculate the slope

Explanation:

The other choices, determining the y-intercept, calculating the area under the line, and determining the x-intercept, are not relevant to determining the inertial mass of the block.

The formula V = π r² h or V = π R² H is used to measure the volume of a cylinder.

The volume of a cylinder is the density of the cylinder which indicates the amount of material that can be held in it or how much amount of any material can be immersed in it. To find a cylinder's volume, the formula to be used is v = π r² h (V = π R² H). In this formula, V is the volume of the cylinder; π r² represents the area of the base of the cylinder, with radius 'r'; h is the height of the cylinder.

Therefore, the given V = π r² h or V = π R² H is the formula to calculate a cylinder's volume.

"

Correct question is as follows:

What formula is this V = Πr²h or V = π R² H?

"

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