the sun is a relatively young star, near the beginning of its life.

Answer:

Selenium dichloride

Explanation:

Selenium (Se) and Chlorine (Cl) are both elements capable of combining together to form a compound with the chemical formula; SeCl2. Since the chlorine atom is more electronegative than selenium atom, the chlorine pulls more electrons towards itself to form an IONIC bond.

The SeCl2 compound formed is called Selenium dichloride as two atoms of Chlorine are needed to combine with one atom of Selenium to form the compound.

The name of the molecular compound is selenium dichloride (SeCl2).  

• Due to sharing of electrons between selenium and chlorine, Selenium dichloride is considered as covalent compound.  

• Both the elements are non-metals, and thus, would give rise to covalent bond.  

• Selenium is the least electronegative element of the two, so it is written first.  

• After that the more electronegative element is written, and then addition of suffix is done, that is, -ide.  

• If atoms of an element is more than one, then prefixes are supplemented that is mono for 1 atom, di for two atoms, and tri for three atoms.  

Thus, the name of the molecular compound is selenium dichloride.

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Answer:

a counterclaim

Explanation:

authors purpose is what an author wrote somthing for

opinion is someones thoughts or "side" on a argument

an arguement is a battle of opinions if that makes sense

Answer: the weight would be 4.6 (I think i don’t know))

Explanation:

Given

The electric flux is

Radius of the sphere,

To find

a. The flux through a gaussian sphere with radius of 29.0 cm.

b. The magnitude of the charge

Explanation

a. Since the gaussian sphere covers the same charge so the electric flux through both the sphere will be same.

Thus the required flux is

b.

The magnitude of the charge is

Conclusion

a. The flux is

b. The charge is

Answer:

Option C, 139 m/s

Explanation:

s = d/t

s = 500*10^3/3600

s = 138.8 = 139 m/s

How long it takes an object to move a certain distance if we know its average speed and the total distance it covers. As previously, it makes no difference whether the speed is constant or not; all that matters is the average distance travelled. Thus, option C is correct.

The object's average speed is the total distance it travels in a predetermined amount of time. A scalar value represents the typical speed. It is characterized by the magnitude and lacks direction.

A body's average speed is its mean value over a given amount of time. Since a moving body's speed fluctuates over time and is not constant, an average speed formula is required.

Therefore, s = d/t s = 500×10^3/3600 s = 138.8 = 139 m/s. Distance travelled divided by time passed equals average speed.

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Answer:

Please state the statements in the comment so I can help

Answer:

82.2

Explanation:

KE= 6,875 J.

Formula: \(KE=\frac{1}{2} mv^{2}\)

Speed(v)= 5m/s

Mass(m)= 550 kg

\(KE=\frac{1}{2} (550kg)(5m/s)^{2}\\ \\KE=(275kg)(25(m/s)^{2})\\ \\KE=6875kg*\frac{m^{2} }{s^{2} }\)

According to the definition of energy units, we can rewrite the final answer as the following:

\(KE=6875J\)

J stands for "joules", unit of energy (check the attached image).

The process of nitrogen fixation is necessary for life on earth because nitrogen is an essential element for the formation of proteins and nucleic acids.

Nitrogen gas makes up around 78% of the Earth's atmosphere, but it is not in a form that most organisms can use.

Nitrogen fixation is the process by which atmospheric nitrogen is converted into a form that can be used by living organisms, such as ammonia or nitrate.

This process is essential for the growth of plants and other organisms that rely on nitrogen for their survival. Without nitrogen fixation, life on earth would not be able to thrive as it does today.

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Nuisance static charges are more likely to occur when the air is dry.

When the air is dry, it is not able to hold a sufficient amount of moisture or humidity. When the moisture content of the air is low, the air has a low electrical conductivity, which increases the likelihood of static charges.Static electricity can be created by the rubbing of two objects. When these objects are separated after rubbing, they are left with a static electric charge. The strength of the electric charge is determined by the materials used to create the two objects. Some materials are better at holding static charges than others.

Dry air only exacerbates the situation. Static charges can be a nuisance for a variety of reasons. They can cause shocks, interfere with electronic devices, and can even cause damage to sensitive equipment. In order to reduce the occurrence of static charges, it is important to ensure that the air in your environment is sufficiently humid. This can be achieved by using a humidifier or by simply placing bowls of water around the room. Additionally, anti-static products, such as sprays and mats, can be used to reduce the occurrence of static charges.

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Answer:

well they make the siren go beacaus eyou are doing somthing wrong so what were you thinking

Explanation:

The path calculation considering wind vectors involves drawing the course in blue, adding the wind vector in orange to the tail of the blue vector, and then drawing the resultant vector in green.

How can we calculate the resultant vector using vector addition?

To calculate the resultant vector using vector addition, we need to add the components of the blue vector and the orange wind vector separately. The components can be determined by breaking down each vector into its horizontal and vertical parts. Once we have the horizontal and vertical components, we can add them separately to find the resultant horizontal and vertical components. Finally, we can combine the resultant horizontal and vertical components to form the resultant vector. The resultant vector will represent the direction and magnitude of the vessel's path considering the wind effect.

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In the vector addition, measure the resultant vector from the origin of the first vector to the end of the last vector. In the Ferris wheel problem, formulate a sinusoidal function accounting for radius, center height, and speed of rotation.

The question involves two main concepts, vector addition and creation of sinusoidal functions. When dealing with vector addition, the order in which we add the vectors is not important, but it is critical to draw the vectors to scale. For instance, if you're given vector -3B, you can reliably draw the resultant vector S by starting from the origin of -3B and tracing to the end point of the last vector in the sequence. The direction angle and magnitude of S can then be measured with a protractor and a ruler respectively.

For the Ferris wheel problem, you are tasked with generating a sinusoidal function representing the height as a function of time. The Ferris wheel has a diameter of 30 meters, it's center stands at 19 meters off the ground, and it completes 2 revolutions per minute. The radius of this wheel is half its diameter, so it is 15 meters. Given this information, a possible sinusoidal function is h(t) = 19 + 15sin((4π/60)t), where t represents time in seconds. Notice that the '15' represents the amplitude or radius of the Ferris wheel, the '19' shifts the sinusoidal function along the y-axis to account for the height of the Ferris wheel's center from the ground, and the term '(4π/60)t' defines the speed of the Ferris wheel's rotation, translating the speed given in revolutions per minute into radians per second.

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The stone reaches a maximum height of approximately 20.41 meters.To solve this problem, we need to find the maximum height reached by the stone.

First, let's calculate the net force acting on the stone. Net force is the difference between the weight of the stone and the air drag force.
       Weight of the stone = 5.29 N
       Air drag force = 0.265 N
We know that,
       Net force = Weight - Air drag force
       => Net force = 5.29 N - 0.265 N
       => Net force = 5.025 N
Next, we can use the net force to find the acceleration of the stone.
       Net force = mass * acceleration
       => Acceleration = Net force / mass
Since the mass of the stone is not given, we cannot calculate the acceleration.
However, we can use the initial velocity and the acceleration due to gravity to find the maximum height.

Using the equation:
       v^2 = u^2 + 2as
       where,
       v = final velocity (0 m/s at the maximum height)
       u = initial velocity (20.0 m/s)
       a = acceleration due to gravity (-9.8 m/s^2, since the stone is moving vertically upwards)
       s = displacement (maximum height)
Plugging in the values,
       0^2 = (20.0 m/s)^2 + 2*(-9.8 m/s^2) * s
       => 0 = 400 m^2/s^2 - 19.6 m/s^2 * s
       => 19.6 m/s^2 * s = 400 m^2/s^2
       => s = 400 m^2/s^2 / 19.6 m/s^2
       => s ≈ 20.41 m
Therefore, the stone reaches a maximum height of approximately 20.41 meters.

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Explanation:

the answerer is visible

Genetic material is known to absorb UV light. Given what we know, we can confirm that genetic material is not known to absorb light originating from an infrared or microwave radio source.

Genetic material is the hereditary substance in the cell. It carries all information specific to an organism. It is known as DNA (deoxyribonucleic acid) or RNA (ribonucleic acid)

UV light is electromagnetic radiation, and the primary source of UV light that we are exposed to is the sun.

Therefore, given that the only form of light listed that genetic material is known to absorb is that of Ultraviolet or UV light, we can confirm that the answer to the question proposed is infrared and microwave radio light.

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Answer:

D. the track exerts a force that is equal and in the opposite direction as the force exerted by the tires

Explanation:

Newton's third law of motion states that for every action, there is an equal and opposite reaction. This speaks of equality in magnitude of force applied but in an opposite direction to one another.

According to this reaction, a car's tires exert a force on the track, this means that in accordance to Newton's third law, the track must exert an equal but opposite force on the car's tires. This causes the car to accelerate forward.

The seesaw will not move, because both of the persons will have moved the same amount, so the overall weight on either side will remain balanced.

The seesaw will remain balanced. This is because the two masses are equal, and each is moving the same distance away from the pivot point. Since the pivot point is massless, the distance of each mass relative to the pivot point is the only factor that affects the balance of the seesaw. Since each mass has moved the same distance away from the pivot point, and the pivot point has not changed, the seesaw will remain balanced.  In order to cause the seesaw to become unbalanced, one of the masses must move further away from the pivot point than the other. The further away the mass is from the pivot point, the greater the torque it will produce, causing the seesaw to tilt. For the seesaw to stay balanced, the torques from each mass must be equal, so the masses must remain the same distance from the pivot point.

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Almost 100 kPa is the atmospheric pressure. The entire top of the manuscript is under downward pressure. Only a portion of the bottom layer of the book may be subject to the upward pressure.

Answer: Force=500

Explanation:

We use ATP since it says "the downward force from atmosphere" and ATP equals 100kPa x 0.05m2 = 5000N.

How much pressure is there in the air?

The air atmospheric pressure near sea level, or 14.7 pounds every square inch, is equal to one ATM unit of measurement. Likewise known as standard atmospheric pressure.

Why is atmospheric pressure created?

The several layers of the atmosphere's atmosphere are made up of molecules as well as atoms that are constantly moving in random ways. Despite being minuscule, they still exert pressure that seems to humans as a force when they strike a surface.

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The torque required to tighten the bolt is 16.9485 Nm when using the metric unit system.

First, we need to convert the units of the given torque from pound-foot (lbf-ft) to newton-meter (Nm):

1 lbf-ft = 1 pound * 1 foot = 1 lbf * 0.3048 m (since 1 m = 3.281 ft)

= 1 lbf * 0.3048 m/ft * 4.448 N/lbf (using the conversion factor 1 lbf = 4.448 N)

= 1.3558 Nm

Therefore, 12.5 lbf-ft is equivalent to:

12.5 lbf-ft * 1.3558 Nm/lbf-ft = 16.9485 Nm (rounded to four decimal places)

So the torque required to tighten the bolt is 16.9485 Nm when using the metric unit system.

What is torque?

Torque is a measure of the force that causes an object to rotate around an axis or pivot point. It is often described as a twisting or turning force and is commonly denoted by the symbol "τ" (tau).

The magnitude of torque depends on two factors: the magnitude of the force and the distance between the force and the axis of rotation. The greater the force or the distance, the greater the torque will be. Mathematically, torque can be expressed as:

τ = r x F

The unit of torque is the newton-meter (Nm) in the metric system, which is the force of one newton applied at a distance of one meter from the axis of rotation.

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The equivalent resistance of the combination is 9.00 Ω. The current in through 1.30 Ω resistor is 20.77 A. The current in through 3.00 Ω resistor is 2.64 A. The current in through 4.70 Ω resistor is 1.08 A. The total current through the battery is 20.77 A.

A. The equivalent resistance of the combination is the sum of the resistances of each resistor: 1.30 Ω + 3.00 Ω + 4.70 Ω = 9.00 Ω

B. To find the current through the 1.30 Ω resistor, we can use Ohm's Law: I = V/R, where V is the voltage across the resistor and R is its resistance. In this case, the voltage across the 1.30 Ω resistor is the same as the voltage across the entire circuit, which is 27.0 V. So, I = 27.0 V / 1.30 Ω = 20.77 A

C. To find the current through the 3.00 Ω resistor, we can use the same formula: I = V/R. However, the voltage across this resistor is now less than the total voltage of the circuit, since some of the voltage has already been dropped across the 1.30 Ω resistor. The voltage across the 3.00 Ω resistor is V = IR, where I is the current flowing through it and R is its resistance. We can find I using the total resistance of the circuit and the total current, which we will find in part E. So, V = I(3.00 Ω) and I = V/3.00 Ω = (27.0 V - 20.77 A * 1.30 Ω) / 3.00 Ω = 2.64 A

D. To find the current through the 4.70 Ω resistor, we can use the same formula: I = V/R. Now, the voltage across this resistor is even less, since it has to share the voltage dropped across both the 1.30 Ω and 3.00 Ω resistors. We can use the same approach as before to find the current: V = I(4.70 Ω) and I = V/4.70 Ω = (27.0 V - 20.77 A * (1.30 Ω + 3.00 Ω)) / 4.70 Ω = 1.08 A

E. To find the total current through the battery, we can use the fact that the current through any part of a series circuit is the same as the total current. So, the total current is equal to the current through any one of the resistors, which we found in part B: I = 20.77 A.

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Answer:

The bagel has been inelastically deformed

Explanation:

In physics, elasticity is the term used to describe a material's ability to go back to its previous size and shape upon the removal of the forces that causes it to deform

An elastic material is one that has its size and shape restored after the removal of an applied force while an inelastic material is one that remains permanently deformed and does not return to its original shape and dimensions after the removal of the applied force.

Inelastically is an adverb used to describe a verb

Therefore, we have;

Johann squeezes a bagel too hard at the supermarket, and it does not return to its original shape when he removes his hand. The bagel has been inelastically deformed.

Answer:

Explanation:

here this is a whole slideshow i made

Answer:

Explanation:

Fun homework assignment!

I will provide the info that should allow you to write the space weather report.

Three different types of space weather events:

- Solar flare: strong radiation from the Sun. People should stay inside their spacecrafts.

- Meteorite shower: space rocks zipping by at extreme high speed. Again people should stay inside.

- Man-made space debris: big and small space junk left by human space activities. Slower than meteorite but still need to keep an eye on them.

Effect on Earth:

- Solar flare will affect radio communication and satellite transmission.

- Meteorite shower usually burns up in atmosphere but some may hit ground.

- Space debris also burn up in air but some may land like the recent Chinese rocket.

The atmosphere protects life on Earth by filtering harmful UV radiation, regulating solar radiation and heat, shielding against cosmic rays and space debris, maintaining atmospheric pressure for respiration, and mitigating the impact of meteorological hazards.

Our atmosphere provides several key protections to life on Earth:

Ultraviolet (UV) Radiation: The atmosphere contains the ozone layer, which helps filter out a significant amount of harmful UV radiation from the Sun. UV radiation can cause skin damage, including sunburns and an increased risk of skin cancer.

Solar Radiation and Heat: The atmosphere absorbs and scatters a portion of the Sun's solar radiation, reducing the intensity of direct sunlight that reaches the Earth's surface. It helps regulate temperatures by trapping heat through the greenhouse effect, preventing extreme temperature fluctuations.

Cosmic Rays and Space Debris: The atmosphere acts as a shield against high-energy cosmic rays and most space debris, such as small meteoroids, by causing them to burn up or disintegrate upon entry. This protection prevents them from reaching the Earth's surface and causing potential harm.

Atmospheric Pressure: The atmosphere exerts pressure on the Earth's surface, creating a stable environment for life. It allows us to breathe comfortably by ensuring that air molecules are present at a sufficient density for respiration.

Protection from Meteorological Hazards: The atmosphere plays a crucial role in weather patterns, helping to distribute heat, moisture, and energy across the planet. It provides a buffer against extreme weather events like hurricanes, tornadoes, and severe storms, helping to mitigate their impact.

Therefore, our atmosphere serves as a protective barrier that shields us from various harmful external factors, maintaining a stable and habitable environment for life on Earth.

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Answer:

Three stages of falling

There are three stages as an object falls through a fluid:

at the start, the object accelerates downwards due to the force of gravity

as the object's speed increases, frictional forces such as air resistance or drag increase

at terminal velocity, the weight of the object due to gravity is balanced by the frictional forces, and the resultant force is zero

Explanation:

Electric Field is the region around electrically charged particle (positive or negative) where they attract/repel each other and play their dynamics.

Equipotential lines are imaginary lines within an electric field, perpendicular to electric field lines over which electric potential at every point is distinctively constant.

Do your electric field and equipotential lines appear as expected?

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In atomic notation, the number at the top represents atomic mass (the combined number of protons and neutrons). Two atoms that split from a larger atom must have the same combined atomic mass as the original atom.

228 = 4 + ?

? = 224

The statement that describes what happens in the graph is option (B).

The lander's velocity decreases toward the reference.

Velocity time graph is a type of graph that describes the change in velocity with respect to time of motion of an object.

Below is the basic explanation of the behavior of the average velocity of the particle with time.

Thus, we can conclude that between 20 and 25 seconds in the velocity tike graph, the average velocity of the object decreased towards the reference point (reference velocity = - 40 m/s.).

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Answer:

Explanation:

The velocity ratio of  a wheel and axle is the ratio of the radius (R) of the wheel to the radius (r) of the axle. It is expressed as;

VR = R/r

Since radius = diameter/2

VR = (D/2)/(d/2)

VR = D/d

D is the diameter of the wheel and 'd' is the diameter of the axle.

Given VR = 3 and d = 5cm

3 = D/5

D = 15 cm

If the diameter of the wheel is 15cm, the radius of the wheel will be 15/2 = 7.5cm.

b) Workdone by the load = Load * distance moved by load

Given load = 60kg

Distance moved by load = 2π*radius of axle

Distance moved by load  = 2π(0.025) = 0.157

workdone by load = 60* 0.157 = 9.42J

Effort = Workdone by load/distance moved by the wheel

Effort = 9.42/2π(0.075)

Effort = 9.42/0.471

Effort = 20kg

Hence the effort applied is 20kg

c) MA = Load/Effort

MA = 60/20

MA = 3

d) Efficiency = MA/VR * 100%

Efficiency = 3/3 * 100%

Efficiency = 100%

Im not sure what your question is? Are you asking if humans have contributed to global warming?

Answer:

7 m/s East

Explanation:

The speed of the man relative to the plane is given as 7 m/s. Given that he's walking in the corridor of the plane, this is his speed relative to the plane. Since he's moving to the back of the plane, and the aircraft is headed to west, the man's direction relative to the plane is East.