Write two ways of reducing friction

Answer:

Carbon 14 has 2 more neutrons than Carbon 12

same number of protons and electrons if they are both neutral atoms (that is the +  or - aspect)

Explanation:

Answer:

The difference is the number of neutrons they have.

Explanation:

The atomic number is the number of protons. The number of protons is what differentiates elements. The isotope number is the total weight of the atom, that is the protons plus the neutrons. Therefore the number of neutrons is equal to the atomic mass minus the atomic number. Electrons are generally equal to the number of protons, to balance the charge of the atom.

In short: the difference between the two isotopes is that one has more neutrons.

Answer:

Electron affinity is the energy change that results from adding an electron to a gaseous atom. For example, when a fluorine atom in the gaseous state gains an electron to form F⁻(g), the associated energy change is -328 kJ/mol.

Give brainliest please.

Answer:

Electron affinity is the energy change that results from adding an electron to a gaseous atom.

Sorry I don't know about the second one.

The induced volume per stroke (Vin) of the given air compressor is 6.438 x 10^-3 m³. Therefore, the correct option is 6.438.  Answer: 6.438.

Given Data:Swept Volume (Vs)

= 0.007634 m²P1 (inlet pressure)

= 101.3 kPaT1 (inlet temperature)

= 20°CP2 (outlet pressure)

= 680 kPank (Index of Compression)

= n

= 1.30We know that the formula for the volume of the air delivered per stroke (Vin) is:Vin

= Vs / (1/n) [(P2/P1)n-1]Since, the Index of Compression and Re-expansion is n

= 1.30, thus putting the values in the above formula, we get:Vin

= 0.007634 / (1/1.30) [(680/101.3)1.3-1]Vin

= 6.438 x 10^-3 m³. The induced volume per stroke (Vin) of the given air compressor is 6.438 x 10^-3 m³. Therefore, the correct option is 6.438.  Answer: 6.438.

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Electromagnetic spectrum  make up themicrowaves, infrared waves, visible spectrum, ultraviolet waves, X-rays, and gamma rays.

all electromagnetic radiation, broken down into wavelengths or frequencies. Although electromagnetic waves have a wide range of frequencies, wavelengths, and photon energies, all electromagnetic waves propagate in a vacuum at the speed of light. The entire range of electromagnetic radiation is represented by the electromagnetic spectrum, which also includes numerous subranges, or portions, such as visible light and ultraviolet radiation. The various components have different names based on variations in the emission, transmission, and absorption of the corresponding waves as well as the various applications in real life. The ranges frequently overlap because none of these contiguous portions has boundaries that are widely accepted.

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If placed in groundwater, a 0.60 kg gold crown would rise by a buoyant force of almost 11.58 N. You can ascertain the same using the formula provided:

Buoyant force = density of fluid x Volume of object x gravitational acceleration

= 1000 kg/m3 x 0.60 kg/m3 x 9.81 m/s2

= 11.58 N

When an item is submerged in a fluid, buoyant force, a kind of uplifting force, is applied to that item. An entity's buoyant force is proportional to the amount of both the fluid it has evacuated.

Step 1: Calculate the volume of the crown

Mass divvied up by concentration is just the formula for calculating an item's volume. The golden crown inside this instance weighs 19.3 x 103 kg/m3 in terms of density.

Volume = 0.60 kg/19.3 x 103 kg/m3

Volume = 0.0031 m3

Step 2: Determine how much water has been displaced by mass.

The crown's volume times the water is probably density gives the amount of water that is evacuated. Freshwater has a 1,000 kg/m3 density.

Mass of water moved is 0.0031 m3 times 1,000 kg/m3.Water displacement weight is equal to 3.1 kg

Step 3: Determine the buoyant force.

The buoyant force that an item experiences is proportional to the mass of the fluid which that item has displaced. The water that was removed weighs 3.1 kg in particular instance.

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Answer:

Surface

Explanation:

Rayleigh Waves—surface waves that move in an elliptical motion, producing both a vertical and horizontal component of motion in the direction of wave propagation. Particle motion consists of elliptical motions (generally retrograde elliptical) in the vertical plane and parallel to the direction of propagation.

Answer:

Buddo is an island and is also a martial arts

Explanation:

At time t = 15/16, the object reaches a state of zero velocity, indicating a momentary pause in its motion. Prior to this time, the object moves in one direction, while after this time, it changes direction and moves in the opposite direction. The value t = 15/16 represents the specific moment when the object transitions from one direction to another and experiences a brief period of rest.

To find the velocity v(t) of the object at any time t, we differentiate the given distance function s(t) = 9 - 15t + 8t² with respect to time:

v(t) = d/dt (9 - 15t + 8t²)

Applying the power rule of differentiation, we obtain:

v(t) = -15 + 16t

Therefore, the velocity v(t) of the object at any time t is given by v(t) = -15 + 16t.

To determine when the object is at rest, we set the velocity v(t) equal to zero and solve for t:

-15 + 16t = 0

Adding 15 to both sides of the equation, we have:

16t = 15

Finally, dividing both sides by 16, we find

t = 15/16

Hence, the object is at rest when t = 15/16.

This means that at time t = 15/16, the object's velocity is zero, indicating that it is momentarily stationary. Before this time, the object is moving in one direction, and after this time, it is moving in the opposite direction. The value t = 15/16 represents the specific point in time when the direction of motion changes, and the object is at rest for an instant.

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The distance traveled during the driver's reaction time is 7.5 meters, the distance traveled while decelerating is 22.5 meters And  the total stopping distance is 30 meters.

To determine the distance the driver travels before applying the brakes, we can use the following steps:

1. Calculate the distance traveled during the driver's reaction time.

  Given:

  Reaction time (t_reaction) = 0.50 seconds

  Initial velocity (v_initial) = 15 m/s

The distance traveled during the reaction time can be calculated using the formula,

  d_reaction = v_initial * t_reaction

 d_reaction = 15 m/s * 0.50 s

  d_reaction = 7.5 meters

Therefore, the distance traveled during the driver's reaction time is 7.5 meters.

2. Calculate the distance traveled while decelerating.

  Given:

  Maximum deceleration (a_deceleration) = -5.0 m/s^2 (negative because it represents deceleration)

  Final velocity (v_final) = 0 m/s (since the car comes to a stop)

  The distance traveled while decelerating can be calculated using the formula:

  d_deceleration = (v_final^2 - v_initial^2) / (2 * a_deceleration)

  d_deceleration = (0^2 - 15^2) / (2 * (-5.0))

  d_deceleration = (-225) / (-10)

  d_deceleration = 22.5 meters

Therefore, the distance traveled while decelerating is 22.5 meters.

3. Calculate the total stopping distance.

  The total stopping distance is the sum of the distance traveled during the reaction time and the distance traveled while decelerating.

Total stopping distance = d_reaction + d_deceleration

Total stopping distance = 7.5 meters + 22.5 meters

Total stopping distance = 30 meters

Therefore, the total stopping distance is 30 meters.

In summary, considering a reaction time of 0.50 seconds and a maximum deceleration of 5.0 m/s^2, the driver would travel 7.5 meters during her reaction time and an additional 22.5 meters while decelerating, resulting in a total stopping distance of 30 meters.

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Answer:

Explanation:

See attachment.

a  NO - it depends on distance between the masses, also.

The gravitational force between two objects depends only on their masses.

b  YES - see attachment

The gravitational force between two objects increases if the mass of one object increases.

c. No - it decrease

The gravitational force between two objects increases if the distance between the objects decreases.

d. It appears the answer is incomplete (stops at . . ., no . . ).  Otherwise I say YES.

Any two objects that have mass also have a force of gravity acting between them, no

Answer:

option c

Explanation:

The temperature must be constant. Ohms law states that the current running through a conductor is directly proportional to the potential difference across it provided the temperature remains constant

Answer:

"element"= There are four basic sentence patterns based on sentence construction element

Answer:

1st one. Element

2nd one. Compound

Explanation:

Answer:

when light goes from one medium to another, refraction is taken place. refraction is the bending of light. and the center part of the bending is called the reflected angle. the index of refraction is the measure of the bending of a ray of light when passed from one medium into another. the refracted angle is the angle between a refracted ray and the normal drawn at the point of incidence to the interface at which refraction occur.

Explanation:

I think I got all of the definitions. you can use the definitions to help you understand what you write about.

Answer:

0

Explanation:

The dancer starts and ends at the same place

For a uniform quantizer with a 5-bit output and input signals between -8V and +8V, the step size of this quantizer is 0.5V. The resolution of a 16-bit A/D converter with a full-scale analogue input voltage of 5V is 76.3 microV.

1. Step size of the quantizer:

A 5-bit output means that the quantizer can represent 2^5 = 32 different levels. The input signals range from -8V to +8V, which gives a total span of 16V. To calculate the step size, we divide the total span by the number of levels:

Step size = Total span / Number of levels = 16V / 32 = 0.5V

2. Resolution of the 16-bit A/D converter:

A 16-bit A/D converter has 2^16 = 65536 different levels it can represent. The full-scale analogue input voltage is 5V. To calculate the resolution, we divide the full-scale input voltage by the number of levels:

Resolution = Full-scale input voltage / Number of levels = 5V / 65536 = 76.3 microV

Therefore, the step size of the given 5-bit quantizer is 0.5V, and the resolution of the 16-bit A/D converter is 76.3 microV.

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Yes, a bird that shifts direction is demonstrating acceleration.

Acceleration is defined as the rate at which an object changes its velocity over time, and changing direction is a form of acceleration because it involves a change in velocity. When a bird changes direction, it must first decelerate in the original direction and then accelerate in the new direction, even if the speed remains constant. This change in velocity constitutes acceleration, which is a fundamental concept in physics.

Mathematically, the formula for acceleration is given as;

a = Δv/Δt

where;

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Answer:

The basic difference is wavelength (frequency)

ultraviolet < visible < infrared where the visible spectrum lies at

4000 - 7000 Angstroms =  400 - 700 millimicrons (10^-9 meters)

Tjhe shorter wavelengths (ultraviolet) carry more energy / photon

The current in each resistor is 4 A, 2 A, and 4 A, respectively. The voltage drop across each resistor is 12 V.

When three resistors are connected in series with a six resistor and a 12-volt battery, the total resistance of the series circuit is R = R1 + R2 + R3 + ...

The current flowing through the circuit is the same at every point. So, if we want to know the current flowing through each resistor, we need to use Ohm's law, I = V/R, where V is the voltage of the battery and R is the resistance of each resistor.

I1 = V/R1 = 12/3 = 4 AI2 = V/R2 = 12/6 = 2 AI3 = V/R3 = 12/3 = 4 A. The voltage drop across each resistor can be calculated using Ohm's law, V = IR.

V1 = I1R1 = 4 x 3 = 12 VV2 = I2R2 = 2 x 6 = 12 VV3 = I3R3 = 4 x 3 = 12 V.

Therefore, the current in each resistor is 4 A, 2 A, and 4 A, respectively. The voltage drop across each resistor is 12 V.

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Answer:

true

Explanation:

Answer: the job of the nucleus is to actually combine into complete ribosomes not make them .

Explanation: ribosomes make protein . so the nucleuses job is to make protein .

If the spectral line of a distant galaxy is broadened, spanning a range of wavelengths, it may indicate that there is a significant amount of movement or turbulence within the gas that is emitting the light.

This could be due to factors such as rotation, outflow, or collisions between gas clouds. The broadening of the spectral line is known as line broadening and can be used to study the dynamics of galaxies and their gas content. It is important to note that other factors, such as instrumental effects, can also contribute to line broadening, so careful analysis and interpretation of the data is necessary to draw accurate conclusions.

What is line broadening ?

The optical spectra of normal stars are continuous spectra overlaid by absorption lines . There are two factors to consider when adding up the spectra of a number of stars to produce the spectrum of a galaxy:

Different types of star have different absorption lines in their spectra. When the spectra are added together, the absorption lines are 'diluted' because a line in the spectrum of one type of star may not appear in the spectra of other types.

Doppler shifts can affect all spectral lines. All lines from a galaxy share the red-shift of the galaxy, but Doppler shifts can also arise from motions of objects within the galaxy. As a result, the absorption lines become broader and shallower.

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Answer:

multiply 65kg and 3m/s^2

to get 195kgm/s

or 195N

wait is that 3m/s or 3m/s^2?

Answer: When a beam of sunlight strikes a molecule in the atmosphere, what's called "scattering" occurs, sending some of the light's wavelengths off in different directions.

Explanation:

Answer: Different types of fuels have varying compositions and release different amounts of pollutants when burned. Here are some common types of fuels and the pollutants associated with them:

Fossil Fuels:

a. Coal: When burned, coal releases pollutants such as carbon dioxide (CO2), sulfur dioxide (SO2), nitrogen oxides (NOx), and particulate matter (PM).

b. Petroleum (Oil): Burning petroleum-based fuels like gasoline and diesel produces CO2, SO2, NOx, volatile organic compounds (VOCs), and PM.

Natural Gas:

Natural gas, which primarily consists of methane (CH4), is considered a cleaner-burning fuel compared to coal and oil. It releases lower amounts of CO2, SO2, NOx, VOCs, and PM.

Biofuels:

Biofuels are derived from renewable sources such as plants and agricultural waste. Their environmental impact depends on the specific type of biofuel. For example:

a. Ethanol: Produced from crops like corn or sugarcane, burning ethanol emits CO2 but generally releases fewer pollutants than fossil fuels.

b. Biodiesel: Made from vegetable oils or animal fats, biodiesel produces lower levels of CO2, SO2, and PM compared to petroleum-based diesel.

Renewable Energy Sources:

Renewable energy sources like solar, wind, and hydropower do not produce pollutants during electricity generation. However, the manufacturing, installation, and maintenance of renewable energy infrastructure can have environmental impacts.

It's important to note that the environmental impact of a fuel also depends on factors such as combustion technology, fuel efficiency, and emission control measures. Additionally, advancements in clean technologies and the use of emission controls can help mitigate the environmental impact of burning fuels.

The nodes and antinodes of a standing wave always remain in a fixed position.

In a standing wave, the nodes and anti-nodes are present at fixed points.

The pattern of a standing wave shows that nodes result from destructive interference and anti-node result form constructive interference.

From a rest position, if we observe nodes and anti-node positions then we can see that nodes have zero displacement while anti-nodes are points that exhibit maximum displacement between two waves.

To put it simply, in Physics, the nodes and anti-nodes are two integral phases of a standing wave.

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Answer:

The battery is a store of internal energy (shown as chemical energy). The energy is transferred through the wires to the lamp, which then transfers the energy to the surroundings as light. These are the useful energy transfers - we use electric lamps to light up our rooms.

Explanation:

The thymocyte developmental checkpoint that tests the functionality of the recombined beta chain of the pre-T cell receptor (pre-TCR) is called Beta selection.

During T cell development in the thymus, thymocytes undergo several checkpoints to ensure proper maturation and functionality. Beta selection is one such checkpoint that occurs at the double-negative stage of thymocyte development. At this stage, the recombined beta chain of the pre-TCR is tested for its functionality.

The pre-TCR, composed of the beta chain and a surrogate alpha chain, plays a crucial role in thymocyte development and selection. Beta selection specifically assesses the ability of the recombined beta chain to pair with the surrogate alpha chain and form a functional pre-TCR complex.

If the recombined beta chain is functional and capable of pairing with the surrogate alpha chain, signaling through the pre-TCR occurs, leading to positive selection. Positive selection allows thymocytes with functional pre-TCRs to survive and progress further in development.

On the other hand, if the recombined beta chain is non-functional or unable to properly pair with the surrogate alpha chain, signaling through the pre-TCR does not occur, resulting in negative selection. Thymocytes that fail the beta selection checkpoint are eliminated through apoptosis.

In summary, the beta selection checkpoint in thymocyte development is responsible for testing the functionality of the recombined beta chain of the pre-TCR. It determines whether thymocytes progress through positive selection or undergo negative selection based on the ability of the recombined beta chain to form a functional pre-TCR complex.

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Answer:

v_kyle = 0.5 m/s

v_jennies = 0.333 m/s

Kyle's Rabbit was the fastest

Explanation:

For the velocity of Kyle's Rabbit:

d = distance covered = 40 m

t = time taken = (1 min)(60s/1 min) + 20 s = 80 s

\(v_{kyle} = \frac{d}{t} = \frac{40\ m}{80\ s}\)

v_kyle = 0.5 m/s

For the velocity of Jennies Rabbit:

d = distance covered = 30 m

t = time taken = (1 min)(60s/1 min) + 30 s = 90 s

\(v_{jennies} = \frac{d}{t} = \frac{30\ m}{90\ s}\)

v_jennies = 0.333 m/s

It is clear from the results that:

Kyle's Rabbit was the fastest

"The relationship between the laser wavelength λ, the angle of the m th bright fringe, and the diffraction grating spacing d is d sinθ = m λ."

Waves overlap as they spread out between slits. Constructive interference occurs along anti-nodal lines. Bright fringes are seen where anti-nodal lines intersect the viewing screen.

Diffraction gratings can be used to split light into its constituent wavelengths (colours). Although the output light intensity is typically much lower, it generally provides greater wavelength separation than a prism.

The bright fringes that result from constructive interference of the light waves from various slits are found at the same angles when light meets an entire array of identical, evenly spaced slits, known as a diffraction grating, as opposed to when there are only two slits. But the pattern is a lot more defined.

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