Which statements describe solstices? Select 3 correct choices. They occur when the Sun reaches its highest or lowest point in the sky. They affect the amount of sunlight in the Northern Hemisphere in June. They contribute to the cycling of winters all year long in the Northern Hemisphere. They influence the cycling of different seasons based on the Sun’s height in the sky. They increase the amount of rays from the Sun directly received in the Southern Hemisphere.

Answer:

The boat is most likely to crash or sink since the water will be very rapid and pacing.

This molar mass suggests that the gas sample is likely a compound made up of a single element, such as a noble gas. One possibility is that the gas sample is argon, which has a molar mass of approximately 39.9 g/mol. Alternatively, the gas sample could be krypton, which has a molar mass of approximately 83.8 g/mol.

Molar mass is a term used in chemistry to refer to the mass of a substance in grams per mole. It is defined as the mass of a substance divided by the number of moles of that substance. The molar mass of a substance is often used to convert between mass and moles, or to calculate the mass of a substance required to react with another substance in a chemical reaction.

To identify the gas sample, you can use the ideal gas law, which states that the pressure of a gas is directly proportional to its temperature and the number of moles of the gas, and inversely proportional to the volume it occupies.

The ideal gas law is given by the following equation:

PV = nRT

where P is the pressure of the gas in pascals, V is the volume of the gas in liters, n is the number of moles of the gas, R is the universal gas constant, and T is the temperature of the gas in kelvins.

Using the values provided in the question, we can solve for the number of moles of the gas:

n = (PV)/(RT)

= (790 torr * 1.365 L) / (8.314 J/mol*K * 368 K)

= 0.0478 moles

Since the mass of the gas sample is 3.33 grams and the number of moles is 0.0478 moles, we can use the molar mass of the gas to identify it. The molar mass is given by the following equation:

M = m/n

where M is the molar mass in grams per mole, m is the mass of the gas in grams, and n is the number of moles of the gas.

Solving for the molar mass, we get:

M = 3.33 g / 0.0478 moles

= 70.0 g/mol

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Answer:

in my opinion weight trenching is true

Answer:

Explanation:

Field characteristics

The strength of the field at the Earth's surface ranges from less than 30 microteslas (0.3 gauss) in an area including most of South America and South Africa to over 60 microteslas (0.6 gauss) around the magnetic poles in northern Canada and south of Australia, and in part of Siberia.

The index of refraction is 1.26

D = 18°

Refractive Index (Index of Refraction) is a value calculated from the ratio of the speed of light in a vacuum to that in a second medium of greater density. The refractive index variable is most commonly symbolized by the letter n or n' in descriptive text and mathematical equations

The refractive index is:

μ = 2 sin(30° + D/2)

= 2 sin(30° + 18°/2)

= 2 sin(30° +9°)

= 2 sin(30+9°)

= 2 sin(39°)

= 2 × 0.63

= 1.26

Hence, index of refraction is 1.26

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Explanation:

1. Average Speed formula is

\(s = \frac{d}{t} \)

As the distance increases, and the time remains constant, thr speed increases as well

2. Forces cause object to speed up or slow down by extering a greater force on a object than its force that opposes it. For example, if a person is running. The pushing force ( the person using their legs to run) is greater than the friction force. which is from the ground.

In a uniformly assessing accelerating motion, the velocity of this specific object follows the law:

v(t) = v₀ + at

where v₀ is the initial velocity, followed by an acceleration and t stands for time.

In the given question statement, the robot starts from rest such that the initial speech achieved is zero where,

vi = 0

Now, the robot undergoes a free fall such that the acceleration is assumed as the gravitational acceleration given the,

g= 9.81m/s².

Therefore, along with the time t = 3.5s and the velocity is,

v(3.5) = 0 + (9.81m/s²) (3.5s) = 34.4m/s

Hence, the speech after it has fallen accounts for 34.3 m/s

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The mass of the car, according to the inquiry, is 897.6 kg.

Mass is the measure of the amount of matter in an object. It is measured in kilograms (kg) in the International System of Units (SI), or in pounds (lb) or ounces (oz) in the imperial and US customary systems. Mass can also be measured using density, which is the ratio of mass to volume.

The kinetic and potential energies of the car can be added to get its total mechanical energy, which is 920,500 J. We know the height of the slope (1.2 m), the speed of the car (18 m/s), and that it is flying over the hill.

K = 0.5 x m x (18 m/s)²

U = m x 9.8 m/s² x 1.2 m

0.5 x m x (18 m/s)² = 920,500 J

m x 9.8 m/s² x 1.2 m = 920,500 J

Solving these two equations, we get m = 897.6 kg.

Therefore, the mass of the car is 897.6 kg.

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Answer:

0.0000126

hope it help u....

Explanation:

\( \sin(60) = \frac{ \sqrt{3} }{2} \\ \\ \sin(60 ) {}^{2} = ( \frac{ \sqrt{3} }{2} ) {}^{2} \\ \\ \sin(60 ) {}^{2} = \frac{3}{4} \)

Please find attached photograph for your answer.

Hope it helps.

Do comment if you have any query.

Answer:

\( \huge{ \boxed{44 \: \: \text{inches}}}\)

Explanation:

To find the perimeter of the rectangle, we must first find the width of the rectangle given it's length and area then use it to find the perimeter of the rectangle.

Let the width be represented by w

Area of a rectangle = length × width

From the question.

Area = 105 sq. in

length = 7 in

\(105 = 7 \times w \\ 105 = 7w \: \: \: \: \: \: \\ \\ \frac{105}{7} = \frac{7w}{7} \\ w = 15\)

width = 15 in

Perimeter of a rectangle(p) = 2l + 2w

l is the length of the rectangle

w is the width of the rectangle

\(p = 2(7) + 2(15) \\ p = 14 + 30 \\ \\ p = 44\)

We have the final answer as

The nebular hypothesis explains how our solar system probably formed from a giant cloud of gases and dispersed solid particles.

The most widely accepted theory in cosmogony to explain how the solar system formed and evolved is the nebular hypothesis. It implies that gas and dust orbiting the sun are what created the solar system.

Following are the steps in nebular theory:

The nebular hypothesis states that enormous clouds of hydrogen and helium imploded. The cloud's center heated up significantly after collapsing. The system then started to rotate as it became hotter and more compressed. The formation of the solar system started at this point.

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At Position D, the Sun's most direct rays are hitting the equator on Earth.

The equator is a geographic coordinate that is defined as an imaginary line that stretches approximately 40,075 km or 24,901 miles across the Earth's surface. The equator is an imaginary circle that is equidistant from the North and South Poles. This circle divides the Earth into the Northern Hemisphere and the Southern Hemisphere.

In summary, the Sun's most direct rays hit the equator on Earth when it is at Position D.

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The time it take a plane traveling 82. 0 m/s to fly once around a circle whose radius is 2850 m = 218 s

The motion of an object on a circular path at a constant or uniform speed is referred to as uniform circular motion.

If the period T is the time it takes an object to complete one circular path, i.e. one revolution, the relationship between speed v, period T, and the circumference of the circle 2\(\pi\)r is:

v = 2\(\pi\)r / T

Where:

v = the velocity of the object (m/s)

r = radius (m)

T = period / time (s)

Hence,

v = 2\(\pi\)r / T

82.0 = 2\(\pi\)(2850) /T

T = 218 s

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The magnetic force between the two wires is larger than the force of the Earth's magnetic field on each wire.

The magnetic force between the two wires is larger than the force of the Earth's magnetic field on each wire. The magnetic force between the two wires can be calculated using the formula

F = μ * I1 * I2 * L / 2 * d

here,

μ is magnetic constant

I1 and I2 are current of each wire,

L is length of each wire,

d is distance between the wires.

Reserving the values,

= F

= \(4 * \pi * 10^-^7 * 400 * 400 * 5 / 2 * 5\)

= 0.16 N.

On the other hand, the force of the Earth's magnetic field on each wire can be calculated using the formula:-

F = μ * B * I * L,

here,

B is Earth's magnetic field strength.

Reserving the values,

= F

= \(4 * \pi * 10^-^7 * 5 * 10^-^5 * 400 * 5\)

= 0.04 N.

Therefore, the magnetic force between the two wires is larger than the force of the Earth's magnetic field on each wire.

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False (One pound-force is the force required to accelerate a mass of 32.174 lbm by 1 ft/s2. In other words, the weight of 1-lbm mass at sea level is 1 lbf.)

Will 1 lbm equal 1 lbf?

The mass that is equal to one penny (lbf) on earth is designated by the unit lbm. It is incorrect to say that a lbm and a lbf are equivalent because a lbm is a unit of mass measurement and a lbf is a unit of force. On Earth, however, it is true to say that one lbm is equal to one lbf.

In what sense does the law of acceleration apply?

The relationship between a body's acceleration and speed is direct.

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Complete question:

State whether the given statelet is True or False.

One pound-force is the force required to accelerate a mass of 32.174 lbm by 9.807 ft/s2.

From the relation between precision and wavelength, the precision of UV light is 90.95 % times the precision of visible light.

Given:

Wavelength, λ = 380 nm

Laser wavelength, λ₁ = 199 nm

The relationship between precision and wavelength is:

P ∝ 1/λ

Precision = (P - P₁)÷P₁ ×100

Precision(UV) = (λ₁ ÷ λ) - 1 ×100

Precision(UV) = (380 ÷ 199 - 1) ×100

Precision(UV) = 90.95 %

Hence, the precision of UV light is 90.95 % the precision of visible light.

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The wavelength of light with a frequency of 3.2 × 10¹² Hz is 93.75 μm

The wavelength in micrometers of light with a frequency of 3.2 × 10¹² Hz

can be calculated by using the formula:

c = λν

where c is the speed of light,

λ is the wavelength, and

ν is the frequency of light.

Therefore,

λ = c / νλ = c / ν = (3 × 10⁸ m/s) / (3.2 × 10¹² Hz) = 9.375 × 10⁻⁵ m

which can be expressed in micrometers as:

λ = (9.375 × 10⁻⁵ m) × (10⁶ μm/m) = 93.75 μm

Wavelength is the distance between two consecutive points on a wave that are in phase. It is the distance between the peaks of a wave or the distance between the troughs of a wave.

The wavelength is determined by the velocity of the wave and the frequency of the wave.

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Boiler monitor: Over the following three chapters, we will create an app that monitors the temperature and pressure of a boiler. To navigate between the pages, we can use a navigation bar at the top of the app, which will have links to each page. We can also use buttons or links within each page to navigate to other pages.

The following pages

1. Home page - This page will display the title of the app and a brief description. It will also have links to navigate to other pages.

2. Temperature page - This page will display the current temperature of the boiler and a graph showing the temperature over time. It will also have a button to refresh the temperature reading.

3. Pressure page - This page will display the current pressure of the boiler and a graph showing the pressure over time. It will also have a button to refresh the pressure reading.

4. Settings page - This page will allow the user to customize the app settings, such as the temperature and pressure units, and the frequency of data updates.

To navigate between the pages, we can use a navigation bar at the top of the app, which will have links to each page. We can also use buttons or links within each page to navigate to other pages.

In the next chapters, we will add functionality to the temperature and pressure pages to display real-time data from the boiler, and we will implement the settings page to allow the user to customize the app.

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The metaphor (object) that shows how Aristotle's Three Artistic Proofs hold up one's argument is a stool. The correct option is 1.

The Three Artistic Proofs are Aristotle's fundamental concepts of argument that build a convincing case when utilized together:

Ethos: It is the ethical appeal; it establishes credibility with an audience.

Pathos: This refers to the emotional appeal; it appeals to the audience's emotions and sentiments.

Logos: It is the logical appeal; it uses reasoning and logical argument to persuade and convince the audience.

The metaphor (object) that shows how Aristotle's Three Artistic Proofs hold up one's argument is a stool. A stool is a three-legged object that can stand on its own with each leg equally supporting the weight. It is like the three artistic proofs, which are required in a good argument to hold it up. Without one of the three legs, the stool would be unstable and would fall apart. This metaphor is commonly used to explain how the three artistic proofs work together to build a convincing case. Option 1.

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Answer:

[Ne] 3s² 3p¹

Explanation:

Answer: 1s2 2s2 2p6

Explanation:

The aluminum ground state would be 1s2 2s2 2p6 3s2 3p1.

However, the Aluminum Ion electron configuration would be 1s2 2s2 2p6 as it has LOST 3 electrons to have the noble gas configuration of Neon (Ne)

Answer:

a.

445 nm : 4.45 x 10^-19 J

445 nm : 2.78 eV

586 nm : 3.38 x 10^-19 J

586 nm : 2.11 eV

667 nm : 2.99 x 10^-19 J

667 nm : 1.87 eV

b.

E3 to E1 : ΔE = 1.87 eV

E3 to E2 : ΔE = 0.24 eV

E2 to E1 : ΔE = 0.24 eV

Explanation:

a) To calculate the energies of the emitted photons, we can use the formula:

E = hc/λ

where E is the energy of the photon in Joules, h is Planck's constant (6.626 x 10^-34 J s), c is the speed of light (3.00 x 10^8 m/s), and λ is the wavelength of the photon in meters.

For the first line of wavelength 445 nm:

E = hc/λ = (6.626 x 10^-34 J s)(3.00 x 10^8 m/s)/(445 x 10^-9 m) = 4.45 x 10^-19 J

To convert this to electron volts (eV), we can use the conversion factor 1 eV = 1.602 x 10^-19 J:

E = 4.45 x 10^-19 J/(1.602 x 10^-19 J/eV) = 2.78 eV

For the second line of wavelength 586 nm:

E = hc/λ = (6.626 x 10^-34 J s)(3.00 x 10^8 m/s)/(586 x 10^-9 m) = 3.38 x 10^-19 J

E = 3.38 x 10^-19 J/(1.602 x 10^-19 J/eV) = 2.11 eV

For the third line of wavelength 667 nm:

E = hc/λ = (6.626 x 10^-34 J s)(3.00 x 10^8 m/s)/(667 x 10^-9 m) = 2.99 x 10^-19 J

E = 2.99 x 10^-19 J/(1.602 x 10^-19 J/eV) = 1.87 eV

b) The energy level diagram for an atom of the element which has produced these photons can be drawn as follows:

markdown

     E3

     |

     | ΔE = 1.87 eV

     |

     |

     |

     E2

     |

     | ΔE = 0.24 eV

     |

     |

     |

     E1

The electron transitions which have given rise to the three spectral lines are:

The transition from energy level E3 to E1, which produces the photon of wavelength 445 nm and energy 2.78 eV (ΔE = 1.87 eV).

The transition from energy level E3 to E2, which produces the photon of wavelength 586 nm and energy 2.11 eV (ΔE = 0.24 eV).

The transition from energy level E2 to E1, which produces the photon of wavelength 667 nm and energy 1.87 eV (ΔE = 0.24 eV).

Note that this energy level diagram is just one possible arrangement of energy levels that could produce the observed spectral lines. There may be other possible arrangements of energy levels that could also explain the observed lines.

ChatGPT

The smallest particle size a scientist can observe using a scanning probe microscope would be a nanometer, therefore the correct answer is option B.

A recognized and accepted standard for measuring other amounts of the same sort is referred to as a unit of measurement. It is predetermined by custom or law.

As given in the problem, we have to find out what is the smallest particle size a scientist can observe using a scanning probe microscope.

1 millimeters = 1 × 10 ⁻³ meter

1 nanometer = 1 × 10⁻⁹  meters

Thus, the smallest particle size a scientist can observe using a scanning probe microscope would be a nanometer, therefore the correct answer is option B.

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When the stopping distance rises by 42%, the average force required to stop the puck decreases by 29.6%.

Part A:

When a force F is applied to a puck of mass m moving with a speed v on a frictionless surface, the puck experiences a deceleration a, given by Newton's second law of motion:

F = ma

Since the puck comes to rest after traveling a distance d, we can use the equations of motion to relate the deceleration a to the initial speed v and the stopping distance d:

v² = 2ad

Solving for a, we get:

a = v² / 2d

Substituting this expression for a in the equation F = ma, we get:

F = (m * v²) / (2 * d)

Therefore, the magnitude of the force F required to stop the puck in a distance d is given by F = (m * v²) / (2 * d).

Part B:

If the stopping distance d increases by 42%, the new stopping distance is 1.42d. Assuming that the mass m and the initial speed v are unchanged, we can use the same equation for F as in Part A to find the new force required to stop the puck:

F' = (m * v²) / (2 * 1.42d) = F / 1.42

The percent change in the average force needed to stop the puck is:

% change = [(F' - F) / F] * 100%

Substituting the expression for F' in terms of F, we get:

% change = [(F / 1.42 - F) / F] * 100% = -29.6%

Therefore, the average force needed to stop the puck decreases by 29.6% when the stopping distance increases by 42%, assuming that the mass and initial speed of the puck remain unchanged.

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Answer:

The answer is "Y → X → Z".

Explanation:

In this question, the chart is missing and the question is not complete that's why we search this question and only give its correct answer that's is defined above, and please find the complete question in the attached file.