Charge is placed a distance from charge. What happens to the magnitude of the force on due to if the distance between them is reduced to ?.

Answer:

Sleeping

Explanation:

Driving in traffic is stressful because you may be late for wherever you are going,

Opening a birthday present is stressful because you don't know what is inside until you open it.

Watching a soap opera is stressful because you do not know what will happen next,

Sleeping is not stressful as long as you don't bring stressful topics to bed.

Answer: H2CO3

Explanation:

Answer:

I suggest that you recheck your answers multiple times and make sure that they are making sense. Also I think that you should Study the organisms very well and you should be careful when making observations so that you really are sure that the organism has 4 wings and not only 2 wings(for example).

Explanation:

I hope this answers your question  

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Answer:

\(ans \: = \boxed{{4.8 \times 10}^{ - 4} Hz}\)

Explanation:

\(given \to \\ f_{r} = 350 \: \\ v_{r} = {3 \times 10}^{8} \\ but \to \\ v = f \gamma \to \: \gamma = \frac{v}{f} : hence \to \\ \gamma _{r} = \frac{v_{r}}{f_{r}} = \frac{3 \times 10^{8} }{350} = \boxed{857,142.85714 \: m}\\ therefore \to \\ given \to \\ f_{w} = water \: frequency = \: \boxed{ ?}\: \\ v_{w} = 14 50 \\ but \to \\ v = f \gamma \to \: \gamma = \frac{v}{f} : hence \to \\ \gamma _{w} = \frac{v_{w}}{f_{w}} = \frac{1}{100} \times \gamma _{r} = \frac{1}{100} \times 857,142.85714 \\\gamma _{w} = \boxed{8,571.4285714 \: m} : hence \to \: \\ f_{w} = \frac{v_{w}}{ \gamma _{w}} = \frac{1450}{8,571.4285714} = \boxed{0.1691666667} \\ if \: the \: number \: of \: times = \boxed{ x} \\ f_{r} (x)=f_{w} \\ (x) = \frac{f_{w}}{f_{r}} = \frac{0.1691666667}{350} = 0.0004833333 \\ hence \to \\ the \: frequency \: of \: the \: radio \: wave \: is \to \: \boxed{{4.8 \times 10}^{ - 4} }\: \\ that \: of \: the \: wave \: created \: in \: the \: water.\)

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Based on the information provided, we can determine that the object's acceleration is constant and equal to zero.

This is because the object is traveling the same distance in each second, indicating that its speed is constant. Acceleration is defined as the rate at which an object changes its velocity, and since the velocity of the object is not changing (it's constant), its acceleration is zero.

It's important to note that even though the object's acceleration is zero, it is still moving. This is because acceleration is only one aspect of an object's motion, and velocity and displacement are also important factors to consider. In this case, the object's displacement (total distance traveled) is 24 meters, and its velocity is constant.

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Answer:

90 mAmps

Explanation:

V=IR

V/R = I

9 v / 100 ohm = .09 amps = 90 mAmps

Answer: Inertia

Explanation: If it is multiple choice chose acceleration and inertia

The gravitational force of Earth on the satellite, given that the satellite is launched into orbit 30000 km above sea level is 1.63×10³ N

The gravitaional force between two objects can be obtained by using the following formula:

F = GM₁M₂ / r²

Where

The following data were obtained from he question:

The gravitaional force can be obtained as shown below:

F = GM₁M₂ / r²

F = (6.673×10¯¹¹ × 5.4×10³ × 6.0×10²⁴) / (36400000)²

F = 1.63×10³ N

Thus, the gravitational force is 1.63×10³ N

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The velocity of light in glycerol is 2.04 × 10⁸ m/s.

To find the answer, we need to know about the expression of velocity of light in any medium.

Speed of light in glycerol= 3×10⁸/1.47 = 2.04 × 10⁸ m/s

Thus, we can conclude that the velocity of light in glycerol is 2.04 × 10⁸ m/s.

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The negative sign in the equation indicates that work is done on the system during the expansion process.

The reversible isothermal expansion of a gas is a process in which the gas expands or contracts gradually and slowly to maintain the temperature constant throughout the process. The gas is initially confined within a volume V and held at temperature T. The gas is expanded to a total volume αV, where α is a constant, by (a) a reversible isothermal expansion, according to the given problem.

In an isothermal process, the temperature remains constant. Therefore, if a reversible isothermal expansion takes place, then we can say that the gas is expanded or contracted slowly, so that the temperature remains constant throughout the process.

The work done by the gas during reversible isothermal expansion is given by:

W = -nRT ln (α)

Where,
n = Number of moles of gas
R = Universal gas constant
T = Temperature
α = Ratio of final volume to initial volume

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Explanation:

everything can be found in the picture

Here, we are required to determine which chemical formula is the product of the reaction between CaO and C02 given that matter is neither created nor destroyed.

The chemical formula of the product of this reaction is ; CaCO3.

The law of conservation of mass is the basis for the balancing of equations of chemical reactions.

The law states that matter( which is the building block of mass) can neither be created nor destroyed.

Therefore, in a reaction where one molecule of calcium oxide, CaO, and one molecule of carbon dioxide, CO2, combine in a chemical reaction to form one substance;

The chemical formula of the product of this reaction is ; CaCO3.

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If the amount demand of a product changes more than proportionally as its price rises or falls, then it is said to be elastic.

The more replacements there are for an item, more elastic the good is, according to definition of an elastic good, which is where change in price results in a large movement in demand. Price elasticity of demand is determined by dividing percentage change in quantity required by the percentage change in price.

Products like cars, appliances, and luxury items that are rarely purchased are examples of elastic commodities. In the event that the cost of these products is momentarily high, consumers may decide to put off buying.

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Explanation:

Vi>Vf

so the initial is greater than from the final

hope it helps u have a great day

Answer:

g = 1.62 N/kg

Explanation:

g = GM/r²

  = (6.67 x 10⁻¹¹   x   7.35 x 10²²) / (1738 x 10³)²

  = 1.62 N/kg

Hope this helps!

They require a wide variety of telescopes since each one provides them with a unique view of the universe. Long to short wavelengths are present in light. Gamma rays and X-rays are examples of short wavelengths.

In order to acquire a clearer view of the planets, stars, and galaxies that we are researching, we launch telescopes into space in order to avoid the Earth's atmosphere. Our atmosphere functions as a shield, allowing some light to pass through while blocking others. This is generally a good thing.

Reflector, refractor, and catadioptric telescopes are the three basic varieties, and each provides greater views of certain objects in the night sky. Typically, refractors are preferred for viewing objects like planets or stars whereas reflectors are preferable for viewing dim, deep-sky phenomena like nebulae and galaxies.

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The French train in a sample problem is traveling 301 km/h. When it is 360m from a road crossing, the engineer blows the whistle. If the speed of sound is 330 m/s, how many seconds after the whistle is heard at the crossing will the train cross there 0.57 sec

The speed of an object is the magnitude of the change of its position over time or the magnitude of the change of its position per unit of time; it is thus a scalar quantity.

Total velocity of the sound coming towards 631 m/sec. Time taken to reach is 360/631 = 0.57 sec

The French train in a sample problem is traveling 301 km/h. When it is 360m from a road crossing, the engineer blows the whistle. If the speed of sound is 330 m/s, how many seconds after the whistle is heard at the crossing will the train cross there 0.57 sec

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The amount of work done to stop the car is equal to 322,099.85 Joules.

Given the following data:

Conversion:

Velocity = 95 km/h = \(\frac{95 \times 1000}{60 \times 60} = 26.39 \;m/s^2\)

To determine the amount of work done to stop the car, we would apply the work-energy theorem:

Note: The amount of work done must balance the kinetic energy possessed by the car due to its motion.

From the work-energy theorem, we have:

\(Work\done = \Delta K.E\\\\Work\done = \frac{1}{2} MV^2\)

Substituting the given parameters into the formula, we have;

\(Work\;done = \frac{1}{2} \times 925 \times (26.39)^2\\\\Work\;done =462.5 \times 696.4321\)

Work done = 322,099.85 Joules

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100.0g of liquid water at 100.0C contains less thermal energy than 100.0g of water vapor at 100.0C because the water vapor has more potential energy.

The thermal energy needed to completely melt 5.67 mol of ice at 0.00C is 31.5 kJ.

The heat required to boil away 75.0 g of H2O that has started at 35.0C is 28.6 kJ.

The thermal energy needed to completely vaporize 12.78 g of water at 100.0C is 24.4 kJ.

The amount of thermal energy in a substance is determined by its temperature and its phase. The higher the temperature, the more thermal energy the substance has.

The phase of a substance also affects its thermal energy. For example, water vapor has more potential energy than liquid water because the water molecules in the vapor have more kinetic energy.

The thermal energy needed to melt ice is called the latent heat of fusion. The latent heat of fusion for water is 333.55 J/g. This means that it takes 333.55 J of thermal energy to melt 1 g of ice.

The thermal energy needed to boil water is called the latent heat of vaporization. The latent heat of vaporization for water is 2256.7 J/g. This means that it takes 2256.7 J of thermal energy to vaporize 1 g of water.

Here are the calculations:

The thermal energy needed to completely melt 5.67 mol of ice at 0.00C is 31.5 kJ.

Latent heat of fusion of water = 333.55 J/g

Mass of ice = 5.67 mol * 18.02 g/mol = 102.23 g

Thermal energy needed = mass * latent heat of fusion = 102.23 g * 333.55 J/g = 31.5 kJ

How much heat is required to boil away 75.0 g of H2O that has started at 35.0C? (Hint: this requires 2 steps)

Step 1: Heat the water from 35.0C to 100.0C

Specific heat of water = 4.184 J/g°C

Heat required = mass * specific heat * temperature change = 75.0 g * 4.184 J/g°C * (100.0 - 35.0)°C = 183.6 kJ

Step 2: Boil the water

Latent heat of vaporization of water = 2256.7 J/g

Heat required = mass * latent heat of vaporization = 75.0 g * 2256.7 J/g = 1692.05 kJ

Total heat required = 183.6 kJ + 1692.05 kJ = 1875.65 kJ

What is the thermal energy needed to completely vaporize 12.78 g of water at 100.0C?

Latent heat of vaporization of water = 2256.7 J/g

Heat required = mass * latent heat of vaporization = 12.78 g * 2256.7 J/g = 2865.75 kJ

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The whole kinetic energy of the system is preserved in a completely elastic collision because there is no energy loss via deformation or friction. As no outside force is exerting any force on the system, the

Collision refers to the event where two or more things come into contact with each other, resulting in a transfer of energy and motion between them. Whether or not kinetic energy is preserved during a collision determines whether it is elastic or inelastic.Kinetic energy is preserved in an elastic collision, as the colliding objects bounce off one another without deforming or losing energy. When two things collide in an inelastic collision, kinetic energy is not conserved, and the items stay together or deform as a result of the impact, causing energy to be lost. Physics, engineering, and many other disciplines depend heavily on

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The Carnot engine is 40% efficient.

It's far a super reversible thermodynamic manner that includes the subsequent 4 tactics, Isothermal growth, No different heating is more efficient than this one, as there may be no finite temperature distinction between the warmth supply and warmth receiver. Therefore, it's miles the most efficient reversible system.

A Carnot engine can be notion of to include a cylinder with adiabatic lateral partitions packed with a substance which can take in and supply warmness. The cylinder is closed by way of an adiabatic piston which could move out and deliver work. The cylinder can acquire paintings by means of shifting the piston inward.

The Carnot engine is a theoretical thermodynamic cycle proposed by means of Leonard Carnot. It estimates the maximum feasible performance that a heat engine all through the conversion manner of warmth into paintings and, conversely, operating among two reservoirs can own.

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The voltage as a function of time for the power source oscillating at the given frequency is determined as V = 169.7sin(120πt).

The peak voltage of the source is calculated as follows;

Vrms = 0.7071V₀

120 = 0.7071V₀

V₀ = 120/0.7071

V₀ = 169.7 V

ω = 2πf

where;

f is frequency = 60 Hz

ω = 2π x 60

ω = 120π rad/s

V = V₀sin(ωt)

V = 169.7sin(120πt)

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The voltage equation is a function of a time is V = 169.7sin(120πt) if the 1. 5-kω resistor and 27. 7-mh inductors are connected in series to a vrms = 120 v ac power source oscillating at a frequency of f = 60 Hz.

Electromagnetic induction causes the induced voltage. Electromagnetic induction is the process of creating emf (induced voltage) by exposing a conductor to a magnetic field.

We have:

\(\rm V{rms} = 120\)

We know:

\(\rm V_{rms} = 0.7071V_o\)

\(\rm 120 = 0.7071V_o\)

\(\rm V_o = 169.70\) Volts

Expression for the angular frequency is given by:

ω = 2πf

Where f is frequency

ω = 2π x 60  

ω = 120π rad/s

Voltage equation as a function of time is given by:

V = V₀sin(ωt)

V = 169.7sin(120πt)

Thus, the voltage equation is a function of a time is V = 169.7sin(120πt) if the 1. 5-kω resistor and 27. 7-mh inductors are connected in series to a vrms = 120 v ac power source oscillating at a frequency of f = 60 Hz.

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Answer:

c

Explanation:

The experimental evidence led to the development of have gathered new evidence. One of the atomic models this atomic model from the one before it is the colors of light emitted from heated atoms had very specific energies.

As scientific knowledge about the structure of the atom has changed, so have models of the atom.

The Rutherford planetary model, which depicts electrons travelling around the nucleus like planets move around the sun in the solar system, is the direct precursor of the model illustrated in the figure attached.

This model was created as a result of the study of light hues released by heated atoms with highly particular energies.

The Bohr model of the atom is so named because Niels Bohr had a major role in developing it. The passage of electrons between energy levels caused the light hues released by heated atoms. Electrons are grouped in shells or energy levels.

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Answer:

R = 0.1 ohms

Explanation:

It is given that,

Voltage of the battery, V = 12.5 V

Current flowing in the car's starter, I = 125 A

We need to find the effective resistance of a car's starter. It can be calculated using Ohm's law. Let R is the resistance.

\(V=IR\\\\R=\dfrac{V}{I}\\\\R=\dfrac{12.5}{125}\\\\R=0.1\ \Omega\)

So, the resistance of the car's starter is 0.1 ohms.

Answer:

Both are chemical change as the new product is formed with new characteristics and can't be brought back to previous form.