the flight paths of modern space vehicles is based on the work of

The new electrostatic force will be 8.0 times the original force or 576.0 units.

The electrostatic force between two objects is governed by Coulomb's law, which states that the force is directly proportional to the product of their charges and inversely proportional to the square of the distance between them. Let's denote the original distance between Objects 1 and 2 as d, and the original electrostatic force as F.

If the distance is changed to one-third of the original value (d/3), the new electrostatic force can be calculated. Since the force is inversely proportional to the square of the distance, the new force will be (d/3)^2 times the original force.

Let's calculate the new force:

New force = F * (d/3)^2

Plugging in the given values:

New force = 72.0 * (d/3)^2

Simplifying the equation:

New force = 72.0 * (1/9) * d^2

New force = (72.0/9) * d^2

New force = 8.0 * d^2

Therefore, the new electrostatic force will be 8.0 times the original force or 576.0 units.

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The gravitational area close to the floor of Mercury is 3.70 N/kg. The gravitational area close to the floor of Venus is 8.87 N/kg.

For Mercury:

g = (6.6743 × 10^-11 N m²/kg²) x (3.29E23 kg) / (2.44E6 m)²

g = 3.70 m/s²

The gravitational area close to the floor of Mercury is 3.70 N/kg.

For Venus:

g = (6.6743 × 10^-11 N m^2/kg²) * (4.87E24 kg) / (6.05E6 m)²

g = 8.87 m/s²

The gravitational area close to the floor of Venus is 8.87 N/kg.

Venus is a planet in our solar device, named after the Roman goddess of love and splendor. From a physics angle, Venus is an interesting object to look at because of its proximity to Earth and its specific characteristics.

Venus is the second one planet from the sun and is similar in size and composition to Earth. but, its environment is a lot thicker, with a high awareness of carbon dioxide and sulfuric acid. the intense greenhouse effect due to this thick surroundings makes Venus the hottest planet within the sun machine, with surface temperatures reaching over 460 degrees Celsius. Physicists study Venus to better apprehend planetary atmospheres, greenhouse consequences, and weather dynamics.

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The frequency of these oscillations is quantized due to the presence of the magnetic field. These oscillations are referred to as de Haas-van Alphen and Shubnikov-de Haas oscillations.

a. Crystals' symmetry is responsible for the solutions with energy bands in solids. It is often found that there are bands of allowed energies separated by bands of energy with no allowed states in solids. The size of the gap between allowed energy bands determines the characteristics of the solid in many ways.b.

The solutions giving the energy bands is written as:(E(k) = E0 ± 2 t (cos(a) + cos(b) + cos(g))1/2,Where E(k) is the allowed energy at wave vector k, and E0 is the minimum energy that corresponds to the ground state energy with k = 0.

The two factors that characterize these solutions are the width (2t) and the periodicity of the cosine term (cos(a) + cos(b) + cos(g))1/2, where a, b, and g are the angles between the sides of the unit cell.c. Insulators have a wide bandgap where no electrons can exist between the valence and conduction bands.

As a result, they are typically insulators because they have very few free electrons.d. Intrinsic semiconductors have a small bandgap between the valence and conduction bands, allowing a small number of electrons to move from the valence band to the conduction band and become free.e.

Metals have partially filled bands of electrons, which are very close in energy to the vacuum level. In other words, metals have low-lying empty states available for the electrons to move to.f.

Quantum metals are expected to be different from the classical theory of metals in the following ways:Quantum oscillations in physical properties (e.g. heat capacity, magnetization, resistivity, etc.) should occur when a magnetic field is applied, according to the classical theory.

However, the frequency of these oscillations is quantized due to the presence of the magnetic field. These oscillations are referred to as de Haas-van Alphen and Shubnikov-de Haas oscillations.

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≈ 0.8 g/cm³

Hi there !

Density formula

d = m/V

= 190g/240cm³

= 0.791(6) g/cm³

≈ 0.8 g/cm³

Good luck !

The density of sampler of ethanol is 0.8 g/cm³.

The density is the ratio of the mass and the volume of the object. It is denoted by ρ.

ρ = mass/Volume

ρ= m/V

Given, a sample the ethanol has a volume of 240 cm³.  Its mass is found to be 190 g.

Substituting the values, we get

ρ = 190g/240cm³

ρ = 0.791(6) g/cm³

ρ ≈ 0.8 g/cm

Thus, the density of ethanol is 0.8 g/cm³.

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hi true false true false

Answer:

the energy increases 4 times

Explanation:

A spring has an elastic potential energy that is given by the expression

          K_e = ½ K (x-x₀)²

where x is the distance from the equilibrium point and k is the return constant

if the spring is stretched at  x-x₀ = 2x₀, the energy value

        K_e = ½ k (2x₀)²

        K_e = ½ k 4 x₀²

        K_e = 4 (½ k x₀²)

        \(\frac{K_e}{ \frac{1}{2} k x_o^2}\) = 4

therefore the energy increases 4 times

The energy stored in the spring changes by a factor of 4

The formula for calculating the energy stored in the spring is expressed as:

\(E=\frac{1}{2}ke^2\)

If the spring is stretched to twice the length of its equilibrium position

\(E_2=\frac{1}{2}(2k)^2\\E_2=\frac{1}{2}4k^2\)

Take the ratio of the energy stored in the spring

\(\frac{E_2}{E} =\frac{1/2(4kx^2)}{1/2kx^2}\\ \frac{E_2}{E} =\frac{4}{1}\\E_2 = 4E\)

This shows that the energy stored in the spring changes by a factor of 4

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Answer:

Thermal energy in the building decreases.

Explanation:

Answer:

A - Thermal energy in the building decreases.

Explanation:

Answer:

Length of pipe 0.5m

Explanation:

Step one

Given data

fundamental frequency of 320 Hz

n=1

Velocity v=334m/s

Note: the subsequent frequency of sound are a multiple of it fundamental frequency

Step two

Applying the formula we have

Fn=nv/2l

Substitute

320=1*334/2L

Cross multiply

320*2L=334

640L=334

Divide both sides by 640

L=334/640

L=0.5m

Answer:

^ correct

Explanation:

Option A on edge 2020

Explanation:

df = do + vot  + 1/2 at ^2      do = what you are looking for      df = ground = 0

0 = do + 6 (3 ) + 1/2 ( -9.81) (3^2)

do = 26.1 m

The third snowman will be placed at a distance of 2.1m from the 15.0 kg mass such that the net gravitational force on it by the other two is zero .

Mass of the snowman 1 = M1 = 15 kg

Mass of the snowman 2 = M2 = 20 kg

Distance between both the masses = r = 4 m

Gravitational force is the force that attracts any two objects of mass.

where G is the gravitational force constant,

M1 and M2 are the masses of the two different bodies respectively,

r is the distance between the masses.

F = \(\frac{GM1M2}{r^{2} }\)

Let the mass M3 be the mass which lies between the masses such that the net gravitational force on it by the other two is zero.

F = \(\frac{GM1M3}{(r-d)^{2} }\)  = \(\frac{GM2M3}{(d)^{2} }\)

here 'd' is the distance at which the mass M3 will be placed such that the net gravitational force on it by the other two is zero.

\(\frac{GM1M3}{(r-d)^{2} }\)  = \(\frac{GM2M3}{(d)^{2} }\)

\(\frac{M1}{(r-d)^{2} }\)  = \(\frac{M2}{(d)^{2} }\)

\(\frac{15}{(4-d)^{2} }\)  = \(\frac{20}{(d)^{2} }\)

3\(d^{2}\) = 4\((4-d)^{2}\)

3\(d^{2}\) = 4 (16 + \(d^{2}\) - 2*4*d)

3\(d^{2}\) = 64 + 4\(d^{2}\) - 32d

\(d^{2}\) - 32d + 64 = 0

On solving the above quadratic equation we get the values of d as;

d1 = 29.

d2 = 2.1

Since the d is the distance between the two masses therefore it must be less than 4 m, therefore d2 will be considered as the value of d.

Hence the mass M3 should be placed at a distance of 2.1 m away from the mass M1 to get zero as the net gravitational force

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Answer:

Yeup

Explanation:

if you flip two magnets around so that they're both negative or both positive they have a strong magnetic force that pushes them away from each other without even having to touch

Answer:

The methane gives Neptune the same blue color as Uranus.

Explanation:

Answer:

Uranus and Neptune are the two most distant planets in our solar system

Both are different from the larger gas giants Jupiter and Saturn, and from smaller rocky worlds like Earth

Uranus and Neptune have similar masses and internal compositions

Explanation:

The given statement is true.

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Answer:

Generally speaking, scientists have developed four different methods of determining the age of the earth. By using these methods, or a combination of them, the age of geological formations created by past events and even the fossilized bones of prehistoric animals can be determined.

Based on the research done by scientists, the Geologic Column, a graph that illustrates earth age, was developed. The Column, with its names for the epochs and eras of time, illustrates what scientists think was taking place in earth history. A small version of the Geologic Column is pictured at the right.

Explanation:

I hope this helps :)

Veda would likely score very high on a personality test that measures extraversion. The answer is C)

The five-factor model of personality, also known as the Big Five personality traits, includes openness, conscientiousness, extraversion, agreeableness, and neuroticism.

Extraversion is one of the five dimensions that describes a person's level of social interaction and stimulation-seeking. Individuals who score high on extraversion tend to be outgoing, sociable, fun-loving, and affectionate, while those who score low tend to be reserved, introverted, and reflective.

Given Veda's personality traits of being sociable, fun-loving, and affectionate, it is likely that she would score high on a personality test that measures extraversion.

This would indicate that she enjoys being around others, seeks out new experiences and stimulation, and is energized by social interactions. In contrast, if Veda were more reserved and reflective, she would likely score lower on extraversion and may instead score higher on other dimensions such as openness or conscientiousness, depending on her other traits.

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Delivered power to both the heater is 600 watts (120 volts×5 amps). Since there are two heaters, the total power delivered to them is 1200 watts.

The total power delivered to the heaters can be calculated using the formula:

Power = Voltage × Current

Given:

Voltage (V) = 120 volts

Current (I) = 5 amperes (for each heater)

For each heater, the power can be calculated as:

Power = 120 volts × 5 amperes = 600 watts

As there are two heaters connected, and the total power delivered to the heaters is the sum of the individual powers:

Total Power = 600 watts + 600 watts

= 1200 watts

Hence, the total power delivered to the heaters is 1200 watts.

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A buyer is purchasing a property for $120,000, which has an assessed value of $130,000. If the tax rate is $1.75 per $100, then the buyer will pay approximately $2,091.23 annually in taxes for the property.

To calculate the annual taxes the buyer will pay, we need to determine the property tax based on the assessed value and the tax rate.

Calculate the tax amount per $100 of assessed value:

Tax rate = $1.75 per $100

Tax per 100 = (assessed value / 100) * tax rate

In this case:

Tax per 100 = ($130,000 / 100) * $1.75 = $2,275

Calculate the annual tax amount:

Annual tax = (property price / assessed value) * tax per 100

In this case:

Annual tax = ($120,000 / $130,000) * $2,275 = $2,091.23

Therefore, the buyer will pay approximately $2,091.23 annually in taxes for the property.

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AC Adapters the four-letter type of adapter that’s used with electrical devices that require power but do not contain internal components to derive the required voltage and power from mains power.

Mobile phones, laptop computers, and external hard drives are just a few of the everyday electronic gadgets that can be powered or recharged using alternating current (AC) adapters. An AC adapter converts AC power from an outlet into the voltage or kind of power that is required by an electronic device.

An AC adapter is an external power source that transforms the direct current (DC) required by an electronic device from the alternating current (AC) found in a wall outlet. It is an AC/DC converter as a result. It's also accurate to call it a charger when it powers a battery-operated item.

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The angle the string makes with the vertical is : 34.6°

Given data :

mass of rubber stopper ( m ) = 45 g

Radius ( r ) = 2.9 m

Time to complete one revolution ( T ) = 4.1 secs

applying the formula below

Tan ∅ = \(\frac{mw^2r}{mg}\) --- ( 1 )

cancel out m from equation ( 1  )

Tan ∅ = \(\frac{w^2r}{g}\)    ----- ( 2 )

where ; w = \(\frac{2\pi }{T}\)  

Therefore equation ( 2 ) becomes

Tan ∅ = \(\frac{4\pi ^2r}{T^2g}\)   --- ( 3 )

where ; r = 2.9 m, T = 4.1 secs , g = 9.8

Insert values into equation ( 3 )

Tan ∅ = 0.69

      ∅ = Tan ( 0.69 )

         = 34.6°

Hence we can conclude that The angle the string makes with the vertical is : 34.6°.

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The velocity of the car is: 15.24m/s.

To have the same momentum as a 2280kg pickup truck traveling at 21m/s to the east, a car with a mass of 1370kg must have a velocity of 15.24m/s to the east.

This can be calculated using the formula for momentum, which is:

Thus, we can rearrange the equation to solve for v: v = p/m.

Substituting in the values given, we get: v = (2280kg * 21m/s)/1370kg = 15.24m/s.

Velocity is a vector quantity that describes the rate and direction of an object's motion. It is the speed of an object in a particular direction and is usually expressed in units such as meters per second (m/s).

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Answer:

false

Explanation:

it's hydrogen. also hydrogen has one proton and stuff and helium two

Example of an elastic product: Smartphone

Explanation: A smartphone is an example of an elastic product. When the price of smartphones decreases, consumers tend to buy more of them, and when the price increases, consumers tend to buy fewer.

Example of an inelastic product: Prescription medication

Explanation: Prescription medication is an example of an inelastic product. Inelastic goods are those for which changes in price have little impact on the quantity demanded.

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Answer:

it have to be a

Explanation:

Answer:

\(v = 23.88m/s\)

Explanation:

Given

\(r = 225m\)

\(\theta = 14.5^\circ\)

Required: Determine the speed of the train

To solve this question, we apply the concept of tension.

Let the tension on the cord be T.

Tension is calculated as:

\(T = mg\)

So, the tensions acting on the system are:

\(T*sin(\theta) = \frac{mv^2}{r}\) and

\(T*cos(\theta) = mg\)

Divide the equations by one another

\(\frac{T*sin(\theta)}{T * cos(\theta)} = \frac{mv^2}{mgr}\)

\(\frac{sin(\theta)}{cos(\theta)} = \frac{v^2}{gr}\)

\(tan(\theta) = \frac{v^2}{gr}\)

Make v^2 the subject

\(v^2 = grtan(\theta)\)

Take the square root of both sides

\(v = \sqrt{grtan(\theta)\)

Substitute values for g (9.8), r 225 and \(\theta\) (14.5)

\(v = \sqrt{9.8 * 225 * tan(14.5^\circ)}\)

\(v = \sqrt{9.8 * 225 * 0.2586}\)

\(v = \sqrt{570.213}\)

\(v = 23.88m/s\)

Hence, the trains' velocity is approximately 23.88m/s

Answer:

C

Explanation:

Have a nice day :)