Identify some sports or activities you can do to improve your overall health and explain how physical activity can improve your

Answer:

40 V

Explanation:

 I will assume that  the resistors are

           100 and 3900 and 1000 OHMS    <=====(NOT W)

In series , the resistances add together 100 + 3900 + 1000 = 5000 ohms total

V = IR

I = V / R      so the total current will be   200 v / 5000 ohms = .04 amps

                   this is the current through all of the resistors

      so for the   1000 ohm resistor     V = IR     .04 (1000) = 40 V

Answer:

No.

Explanation:

No, increasing the frequency of a wave will not increase it's wavelength. Rather it will decrease the wavelength because frequency and wavelength are inversely related.

According to Formula:

v = f(lemda)

If the speed is kept constant to find the relationship between f and wavelength.

=> f is inversely propotional to wavelength.

Hope this helps!

Have a great day!

Answer:

Explanation:

Given:

R = 18 Ohm

U = 9.0 V

__________

I - ?

Ohm's law:

I = U / R

I = 9.0 / 18 = 0.5 A

Answer:

B. radio waves

Explanation:

Trust me It's correct

A. Jupiter largest and most massive planet in the solar system

Jupiter has a huge permanent storm that looks like a red spot in images

Jupiter has at least 61 moons orbiting it, some of which are very large

Jupiter located closer to the sun than Kuiper Belt

Jupiter came on fifth number from the sun and the Jupiter is the massive planet present in our solar system. It contains the big storms like great red spot. The surface of the Jupiter is gas made giant but the surface of the Jupiter is not solid, but it may have a solid inner core about the size of Earth.

The Jupiter contain at least 61 moons which orbiting the Jupiter . The life on the Jupiter is impossible because the Jupiter contain very much pressure, it has volatile surface and the temperature of the Jupiter is very hot than that of the earth.

So we can conclude that option A is the right answer.

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Answer:

friction

air drag

every thing that opposes the motion affects kinetic energy

Explanation:

kinetic energy is a energy which is increase with increase in motion and potential energy is energy stored while the object is at rest

potential energy ∝ 1/(kinetic energy)

as kinetic energy increases potential energy decreases

Answer:

C

Explanation:

Answer:

The answer is C

Explanation:

Answer:

C. It will expand and become a red giant, then eventually shrink to

become a white dwarf.

Explanation:

Wave 1's intensity is nine times greater than Wave 2's. An electromagnetic wave carries both magnetic and electric energy when it moves.

An electromagnetic wave carries both magnetic and electric energy when it moves. Both waves contribute equally to the energy of electromagnetic waves. It is assumed that wave 1 has an electric field E that is three times greater than wave 2's maximal electric energy E'.

Thus, we can state:

E/E' = 3

We are aware,

The wave's intensity is determined by,

I = 1/2eE²c

Where,

I represents the wave's power,

e is a free space permittivity,

E represents the wave's energy.

The speed of light is c.

the strength of wave 1 right now

I1 = 1/2eE1²c

second wave

I2 = 1/2eE²c

Currently, dividing the two intensities,

I1/I2 = E1²/E2²

We are aware,

E/E' = 3

So,

I1/I2 = 9

I1 = 9I2

Thus, we can state:

Wave 1's intensity is nine times greater than Wave 2's.

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Answer:

4000 kg m/s

Explanation:

p=mv

substitute values into the formula above to get:

p=1000x4

p=4000 kg m/s

\(56497.1Nm^2\) is the electric flux through one side of a cube that has a single point charge of placed at its center.

Electric flux is a measure of the electric field lines that are crossing the surface in electromagnetism. Although an electric field cannot flow on its own, it can be used to describe the strength of the field at any distance from the charge that generated it.

We may determine the electric flux across the cube's surfaces using Gauss's Law, then divide the result by 6.

We may eliminate the intermediary for Gauss's Law by using symmetry.

E * A = Qencl / ∈

where  \(= 8.85*10^{-12}\)

The charge is \(-3.00*10^{-6} C\)

Divide \(-3.00*10^{-6} C/ 8.85*10^{-12}\) F/m

We obtain a flux of \(338983.0508 Nm^2\) as a result.

We may calculate the flux through one side by dividing by 6:

\(338983/6 = 56497.1Nm^2\)

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Correct question:

What is the electric flux through one side of a cube that has a single point charge of -3.00 µc placed at its center?

Answer:

The movement of a 2000-kg truck travelling at 19 m/s is 38,000 kgm/s.

Answer:

The elongation (or change in length) of a specimen divided by the original length, sometimes referred to as percent elongation.

Explanation:

Strain is defined mathematically as follows .

strain = Δ L/ L

Δ L is change in length of a wire when some force is applied on it to stretch it along its length and L is original length of a wire .

Stress is The elongation (or change in length) of a specimen divided by the original length, sometimes referred to as percent elongation.

Answer:

The elongation (or change in length) of a specimen divided by the original length, sometimes referred to as percent elongation.

Explanation:

Every object has some elastic and inelastic properties.

The strain is defined as the ratio of change in dimensions to the original dimensions.

There are three types of strains:

1. Longitudinal strain

2. Volumetric strain

3. Shear strain

So, it is defined as elongation (or change in length) of a specimen divided by the original length, sometimes referred to as percent elongation.

The air carbon arc-cutting process requires compressed air in the range of approximately 80 psi to 100 psi. This cutting method utilizes an electric arc to generate heat, which melts the metal being cut, while the compressed air stream blows away the molten material, creating a clean and precise cut.

The pressure of the compressed air plays a crucial role in the effectiveness and quality of the cut.

It is important to maintain the appropriate pressure range (80-100 psi) for optimal cutting results. Insufficient air pressure may result in inadequate removal of molten material, leading to a poor-quality cut or even an incomplete cut. On the other hand, excessive air pressure can cause unnecessary wear on the cutting equipment, as well as create a wider kerf or excessive distortion in the workpiece.

The air carbon arc cutting process is suitable for cutting various types of metals, including steel, stainless steel, aluminum, and cast iron. This method is popular in various industries due to its high cutting speed, minimal heat-affected zone, and versatility in cutting various metal thicknesses. It is essential to select the appropriate cutting parameters, including air pressure, to achieve the best possible cutting results.

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A mass on a spring will oscillate with such a period if it is coupled to a spring of spring constant k. (T). T = 2(m/k) describes this. The frequency of the oscillation would be = k/M.

By summing the masses of the each individual atom inside the compound's formula, the formula mass is determined. The ions can be regarded as atoms for the purposes of determining the formula mass since a valid formula was neutral (when no net electron gained or lost).

Imagine a spring with an unstretched length l, a spring constant of k, and a mass M dangling from it. The resonant frequency would be k/M if the spring's mass were ignored. According to the rule that was cited, the impact of the spring masses would be to change M in the equation for to M + m/3.

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Among the options given, the use of "autoclave" is the most preferred in a disinfection process for salon implements. Autoclave is a method of sterilizing materials through high-pressure steam.

Autoclaves are the best means of disinfecting salon implements because they kill both bacterial spores and fungi, as well as viruses.An autoclave is used in beauty salons to sterilize items that may have been contaminated with blood, fungi, or bacteria. An autoclave, unlike other forms of sterilization, completely eliminates all types of microorganisms, including viruses and spores, from tools and equipment.

Disinfection is the method of reducing the number of microorganisms on an item to a degree where it is no longer harmful. Bacterial endospores are the most challenging microorganisms to remove or kill. An autoclave is the only method of sterilization that effectively kills all types of bacterial endospores.

An autoclave is the best way to disinfect salon implements since it destroys both bacterial spores and fungi as well as viruses. Sterilization, the process of killing or removing all types of microorganisms, is necessary for beauty salons to guarantee the safety of their customers. Disinfection is the procedure of reducing the number of microorganisms to a point where they are no longer dangerous. Autoclaving is the preferred method of sterilization for salon equipment since it is the only method that can kill bacterial spores.Autoclaves have been used in beauty salons for a long time to sterilize tools and equipment. They are highly effective and have been shown to kill all types of microorganisms, including spores. Autoclaves work by subjecting the objects being sterilized to high-pressure steam. This procedure ensures that all microorganisms are killed and that the objects are safe to use. In conclusion, the use of autoclave is the most preferred in a disinfection process for salon implements because it is the only method that can kill all types of microorganisms, including bacterial spores, fungi, and viruses.

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Answer:

Explanation:

Graphic Method:

To solve this problem graphically, you will need to draw a vector diagram. Draw the two forces 10N and 20N as vectors originating from the same point, with the angle between the vectors being 60°. Then, draw the resultant vector that joins the tail of the first vector to the head of the second vector. The magnitude of the resultant vector is the magnitude of the resultant force.

Mathematical Method:

To solve this problem mathematically, you will need to use the law of cosines. The law of cosines states that:

R² = A² + B² - 2ABcosϴ

Where R is the magnitude of the resultant vector, A and B are the magnitudes of the two vectors, and ϴ is the angle between the two vectors.

So, in this case, R² = 10² + 20² - 2(10)(20)cos60°

R² = 100 + 400 - 400cos60°

R² = 500 - 200

R = √300

Therefore, the magnitude of the resultant vector is √300N.

If the two forces are now made to be inclined at 120° to each other, the law of cosines states that:

R² = A² + B² - 2ABcosϴ

Where R is the magnitude of the resultant vector, A and B are the magnitudes of the two vectors, and ϴ is the angle between the two vectors.

So, in this case, R² = 10² + 20² - 2(10)(20)cos120°

R² = 100 + 400 - 400cos120°

R² = 500 + 200

R = √700

Therefore, the magnitude of the new resultant vector is √700N.

Answer:

0J

Explanation:

PE=mgh

PE=  1000kgx9.8m/s^2x0m

PE = 0J

The total amount of heat released by a heat engine to the low-temperature reservoir in one cycle is less than the amount of heat taken in from the high-temperature reservoir in one cycle.

This is because a heat engine converts some of the heat from the high-temperature reservoir into useful work, while the remaining heat is released to the low-temperature reservoir. In a step-by-step manner:

1. The heat engine takes in heat from the high-temperature reservoir.
2. A portion of this heat is converted into useful work.
3. The remaining heat, which is not converted into work, is released to the low-temperature reservoir.

The efficiency of the heat engine determines how much of the heat is converted into work and how much is released to the low-temperature reservoir.

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they are not always in same direction

Answer:

Gravity increase:

mass increases

distance decrease

gravity decrease:

mass decrease

distance increase

hope this helps

have a good day :)

Explanation:

(a) The average pressure exerted by the person is 40,000 N/m².

(b) The average pressure exerted by the elephant is  295,000 N/m².

The average pressure exerted by the elephant is about 7 times greater than the average pressure exerted by the person.

The average pressure exerted by each is defined as the force per unit area.

Mathematically, the formula for average pressure is given as;

P = F/A

where;

P = W / A

where;

The average pressure exerted by the person is calculated as follows;

P = (640 N) / (0.016)

P = 40,000 N/m²

The average pressure exerted by the elephant is calculated as follows;

P = (4.13 x 10⁴ N) / (0.14)

P = 295,000 N/m²

Thus, the average pressure exerted by the elephant and the person depends on their weight and area of their shoes.

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Speed will the car begin to skid sideways is 34.3m/s

Centripetal force is the force that causes an object to follow a curved path. Its direction is always orthogonal to the fixed point of the body's motion and the instantaneous center of curvature of the path.

Given;

   Radius(R)=150m

   Mass(m)=1250Kg

   Static Friction(μs)=0.8

  Calculation:

    Here the necessary centripetal force is exerted by frictional force

          mv^2/R=μmg

          v=sqrt(μRg)

          v =sqrt(0.8*150*9.8)

          v =34.29m/s=34.3m/s

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i) Therefore, the heat added to the gas when heated at constant pressure to 400 K is 14.9 kJ. iv) Therefore, the heat added to the gas when compressed adiabatically to 1.20×10⁵ Pa is 0.

Given data:

Molar specific heat of CV = 7/2 R2.00 mol of gas

Initial pressure, P1 = 1.00×10⁵ Pa

Initial temperature, T1 = 300 mK = 0.3 K

(i) Heating at constant pressure to 400 K

When a gas is heated at a constant pressure, the process is called isobaric process.

Initial pressure, P1 = 1.00×10⁵ Pa

Final temperature, T2 = 400 K

Heat added to the gas by formula is,

q = nCpΔT

where n = 2 mol of gas

Cp = molar specific heat of gas

Cp = CV + R

Cp = 7/2 R + R

Cp = 9/2 R

= (9/2) × 8.31 J/mol

K = 37.3 J/mol

KΔT = T2 - T1

KΔT = (400 - 0.3)

K = 399.7 K

Substitute the given values in the formula,

q = (2 × 37.3 J/mol K × 399.7 K)

q = 14.9 kJ

(ii) Heating at constant volume to 400 K

When a gas is heated at a constant volume, the process is called isochoric process. Initial volume,

V1 = nRT1/P1

V1 = (2 mol × 8.31 J/mol K × 0.3 K)/1.00×10⁵ Pa

V1 = 0.0498 m³

Final temperature, T2 = 400 K

Heat added to the gas by formula is,

q = nCvΔT

where n = 2 mol of gas

Cv = molar specific heat of gas

Cv = CV - R

Cv = 7/2 R - R

Cv = 5/2 R

Cv = (5/2) × 8.31 J/mol K

Cv  = 20.8 J/mol

KΔT = T2 - T1

KΔT  = (400 - 0.3)

K = 399.7 K

Substitute the given values in the formula,

q = (2 × 20.8 J/mol K × 399.7 K)

q = 16.6 kJ

Therefore, the heat added to the gas when heated at constant volume to 400 K is 16.6 kJ.

(iii) Compression at constant temperature to 1.20×10⁵Pa

When a gas is compressed at a constant temperature, the process is called isothermal process.

Final pressure, P2 = 1.20×10⁵ Pa

Heat added to the gas by formula is,

q = nRTln(P2/P1)

where n = 2 mol of gas

R = gas constant = 8.31 J/mol

Kln(P2/P1) = ln(1.20×10⁵/1.00×10⁵)

= ln(1.20)

= 0.182

q = (2 × 8.31 J/mol K × 0.182)

= 3.02 J

Therefore, the heat added to the gas when compressed at constant temperature to 1.20×10⁵ Pa is 3.02 J.

(iv) Compression adiabatically to 1.20×10⁵PaWhen a gas is compressed adiabatically, the process is called adiabatic process. Heat added to the gas in adiabatic process, q = 0

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Answer:  The reason why some objects feel warmer than others even if they are at the same temperature has to do with their thermal conductivity. Thermal conductivity is a measure of how well a material can transfer heat. Materials with high thermal conductivity transfer heat easily, while materials with low thermal conductivity do not transfer heat as easily.

When you touch an object, your skin can’t actually detect the temperature of the object itself. Instead, it senses its own temperature. If you touch an object that is a good thermal conductor, it will transfer heat to or from your skin quickly, making your skin feel warmer or colder. On the other hand, if you touch an object that is not a good thermal conductor, it will transfer heat to or from your skin more slowly, so your skin won’t feel as warm or cold.

So, even if two objects are at the same temperature, one may feel warmer than the other because it is transferring heat to your skin more quickly due to its higher thermal conductivity.

Based on the information that the speed

Explanation:

The Shadow zone is the area of the earth

from angular distances of 104 to 140 degrees from a given earthquake that does not receive any direct P waves

Answer:

0.1 km

Explanation:

Each km is 1000 m. 100 m is 1/10 of 1000 m. in decimal form that is 0.1 km.

The event horizon of a black hole, the region beyond which there is no return, is the zone from which no light of any sort, including X-rays, can escape. Black hole research telescopes operated by NASA.

Are examining the black holes' surroundings, which contain material that is quite near the event horizon. A black hole is an area of spacetime where gravity is so intense that nothing can escape from it, not even electromagnetic radiation like horizon. A sufficiently compact mass can distort spacetime to generate a black hole, according to general relativity theory.

A black hole is a compact, dense object whose gravitational attraction is so powerful that nothing can escape from it up close, not even light.

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