A student observes a model of two bonded atoms. She is told that both atoms are nonmetals. Which of the following is a valid conclusion?


A. The student is looking at a model of atoms held together by a covalent bond.

B. The student is looking at a model of a metalloid.

C. The student is looking at a model of a crystal lattice.

D. The student is looking at a model of atoms held together by an ionic bond.

The answer is number 2 stomata.

Not enough gunpowder in the shotshell, utilizing the incorrect choke for your quarry, and using the incorrect shotshell in your shotgun are the two main causes of shotgun explosions and misfires.

A shotgun, often known as a scattergun or historically as a fowling piece, is a long-barreled firearm made to fire a shotshell, a straight-walled cartridge that typically shoots several small, shot-like pellet-like sub-projectiles called  shotgun.

The first known chemical explosive is gunpowder, usually known as "black powder" to distinguish it from smokeless powder used today. A combination of Sulphur, carbon (in the form of charcoal), and potassium nitrate make up this substance (saltpeter) contain in gunpowder.

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The object that is best used to study the transformation between kinetic and potential energy is the clock because it has a pendulum.

A pendulum can be used to study the conversion of kinetic energy to potential energy. As the pendulum swings from side to side energy is converted from potential energy to kinetic energy and back to potential energy.

The potential energy is minimum and the kinetic energy is maximum at the middle of the pendulum. At both ends of the pendulum, the potential energy of the system is maximum.

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Electrical energy can be described as the energy transferred through the movement of charges, typically in the form of an electric current

define  Electrical energy  ?

Electrical energy is a form of energy that results from the movement of electric charges, typically in the form of an electric current. It is the energy that is transferred or converted from electric potential energy, which is the energy stored in a system due to the separation of charges. Electrical energy can be harnessed and used for various purposes, such as lighting, heating, powering electronic devices, and driving motors. It is an essential form of energy in modern society and plays a crucial role in many aspects of daily life.

The correct answer is 1. Electrical energy can be described as the energy transferred through the movement of charges, typically in the form of an electric current. Options 2, 3, and 4 refer to other forms of energy related to electricity but do not fully describe electrical energy itself.

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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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Answer:

happy holidays

Explanation:

Answer\(:0.178\ m/s^2\)

Explanation:

Given

Amirul starts from rest(u=0) to reach Boon chun house which is 80\ m away from School

acceleration of Amirul is given by

\(s=ut+\frac{1}{2}at^2\)

Where

s=displacement

u=intial velocity

a=acceleration

t=time

here \(t=30\ s\)

Substituting values we get

\(80=0+\frac{1}{2}\times a\times (30)^2\)

\(a=\frac{2\times 80}{900}\)

\(a=\frac{160}{900}=0.178\ m/s^2\)

Answer:

4 is the answer

Explanation:

hope this helps

Answer:

50N increasing

Explanation:

it looks like we want the net force. this is the sum of all forces acting on the object. here the problem is extremely simplified and we are even given the values of force. this looks like the rocket is producing an upward force of 160 newtons. it also looks like maybe weight (gravity) and drag (air resistance) are producing downward force against the rocket. we can say those would be subtracting from the amount of upwards force. so 160-40-70=50N. since the force is positive that means we will still have a magnitude of force vector that points upward and so we will increase.

The net acceleration experienced by riders at this point are 681.79 m/s² and 78.37 m/s² respectively.

Based on the experiment, the net acceleration that is experienced by riders at this point would be calculated by adding the centripetal acceleration (Ac) and the acceleration due to gravity (g) together.

Mathematically, the net acceleration experienced by riders at this point is given by:

Net acceleration = Ac + g

Note: Acceleration due to gravity (g) is equal to 9.8 m/s².

Substituting the given parameters into the formula, we have;

Net acceleration = 671.99 + 9.8

Net acceleration = 681.79 m/s².

In terms of Gs, we have:

Net acceleration = 68.57 + 9.8

Net acceleration = 78.37 m/s².

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If the pressure gauge reads 31 psi and the atmospheric pressure is 15 psi, the real pressure of the air inside the tire is 16 psi. The pressure gauge measures the pressure inside the tire, so the reading of 31 psi represents the total pressure, which includes the atmospheric pressure.

The pressure gauge measures the pressure inside the tire, so the reading of 31 psi represents the total pressure, which includes the atmospheric pressure. To find the real pressure of the air inside the tire, we need to subtract the atmospheric pressure.
Given that the atmospheric pressure is 15 psi, we can subtract this value from the pressure gauge reading:
31 psi - 15 psi = 16 psi.
Therefore, the real pressure of the air inside the tire is 16 psi. This means that if the tire were removed from the gauge and measured independently, it would have a pressure of 16 psi.
It's important to note that the pressure gauge already accounts for the atmospheric pressure, so the reading on the gauge provides the total pressure inside the tire.
In summary, if the pressure gauge reads 31 psi and the atmospheric pressure is 15 psi, the real pressure of the air inside the tire is 16 psi.

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Answer:

I'm sure its transverse, longitudinal and surface

Explanation:

sorry if I'm wrong

If an inelastic collision takes place, during the collision, the total linear momentum is conserved.

Whether two bodies collide with each other in inelastic manner or in elastic manner, the total linear momentum is always conserved.

So, in this case, the momentum will be conserved.

And we know,

Mechanical energy is the sum of potential energy and kinetic energy.

So, we can write,

ME = PE + KE

When the bodies collide in inelastic manner, the kinetic energy is not conserved.

The total kinetic energy after the collision is less than the total kinetic energy before collision.

So, the mechanical energy of the system is not conserved.

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Answer:

If the starting GPE is doubled than it's KE would also double.

I'm pretty sure this poor guy could never have been accepted for astronaut training, much less a mission to the Moon.  

He weighs something like 335 pounds when he's ON THE MOON !

If he has enough fuel, and survives a trip back to Earth, he'll weigh around 9,080 Newtons here.  That's like 2,040 pounds ... durn close to a ton ! !

Answer:

Gravitational field strength:

Moon is 1.6N/kg

Earth is 9.8N/kg or 10N/kg

Moon:

Weight = mass x gravitational field

1500N = m x 1.6N/kg

÷1.6 both sides

937.5 = m

Mass of astronaut is 937.5kg

(Your mass doesn't change, no matter where you go, in space)

Earth:

Weight = mass x gravitational field

= 937.5kg x 9.8 N/kg

= 9187.5N

Or

Weight = mass x gravitational field

= 937.5kg x 10 N/kg

= 9375N

Thus, the astronaut's weight will be 9187.5N or 9375N on Earth.

Hope this helps!

Answer:

To find the average distance of the numbers you provided (255cm, 242cm, 245cm), you can add all the numbers together and divide by the number of numbers in the set.

In this case, you would add 255cm + 242cm + 245cm = 742cm, and then divide by 3 (the number of numbers in the set) to get an average distance of 244cm.

You can also use this formula: (255 +242 + 245) /3 = 244

(a) The tension in the cable when the elevator moves at constant speed upward is 14,700 N.

(b) The tension in the cable when the elevator moves at constant speed downward is 14,700 N.

(c) The tension in the cable when the elevator accelerates upward at a constant rate of 1.2 m/s² is 16,500 N.

(d) The tension in the cable when the elevator accelerates downward at a constant rate of 1.2 m/s² is 12,900 N.

The tension in the cable of the elevator is calculated by applying Newton's second law of motion as follows;

When the elevator moves at constant speed upward;

T = m (a + g)

where;

T = 1500 (9.8)

T = 14,700 N

When the elevator moves at constant speed downward;

T = m (g - a)

T = m (g - 0)

T = mg

T = 1500 (9.8)

T = 14,700 N

When the elevator accelerates upward at a constant rate of 1.2 m/s2;

T = m (g + a)

T = 1500 (9.8 + 1.2)

T = 16,500 N

When the elevator accelerates downward at a constant rate of 1.2 m/s2​;

T = m (g - a)

T = 1500 (9.8 - 1.2)

T = 12,900 N

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Four views of a horseshoe magnet and a current-carrying wire are shown in the drawing. The wire is perpendicular to the screen, and the current is directed out of the screen towards you.

The magnetic force acting on a current-carrying wire is influenced by the direction of the current flow and the direction of the magnetic field, which is decided by the magnetic pole it is near. The magnetic field lines created by a bar magnet, for example, run from the north to the south pole.In the given figure, the magnetic field lines are moving from north to south, as shown by the white arrow.

When the direction of the current is perpendicular to the direction of the magnetic field, a magnetic force is exerted on the current-carrying wire. According to the right-hand rule, the magnetic force on the wire will be perpendicular to both the current-carrying wire and the direction of the magnetic field.

According to the right-hand rule, magnetic force will be directed north in the first view (A), and magnetic force will be directed east in the third view (C).

Therefore, magnetic force on the current points due north in the first view (A).Hence, the answer is the first view (A).

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Answer:

Force arrows are used by scientists and engineers to predict the motion of an object based on the forces that are applied to it.

Answer: Tension in the rope must equal the weight of the supported mass, as we can prove using Newton's second law. If the 5.00-kg mass in the figure is stationary

Explanation: 5.00-kg mass

The 8.0 resistor needs a potential difference of 16.0 volts in order for 2.0 A of current to flow through it.

To solve for the potential difference (V) required across an 8.0 Ω resistor to cause 2.0 A to flow through it, we can use Ohm's Law, which states that V = I * R, where V is the potential difference, I is the current, and R is the resistance.

Substituting the given values into the equation:

V = 2.0 A * 8.0 Ω

Calculating the result:

V = 16.0 V

Therefore, a potential difference of 16.0 volts is required across the 8.0 Ω resistor to cause 2.0 A of current to flow through it.

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Complete question :

Ohm's Law: What potential difference is required across an 8.0−Ω resistor to cause 2.0 A to flow through it? Express your answer with appropriate units.

Answer:

60M

Explanation:

The second partial derivatives of f(x, y) = (sin(mx + ny))² are:

The reason these are the second partial derivatives is because we are taking the derivative of the function twice with respect to x and y.

∂f/∂x = ∂/∂x (sin(mx + ny))² = ∂/∂x (sin²(mx + ny)) = 2sin(mx + ny)cos(mx + ny) * ∂/∂x (mx + ny) = m cos(mx + ny)sin(mx + ny)

∂²f/∂x² = ∂/∂x (m cos(mx + ny)sin(mx + ny)) = -m²sin²(mx + ny)

∂²f/∂y² = ∂/∂y (n cos(mx + ny)sin(mx + ny)) = -n²sin²(mx + ny)

∂²f/∂x∂y = ∂/∂y(m cos(mx + ny)sin(mx + ny)) = mn cos(mx + ny)sin(mx + ny)

So, all these second derivatives are the result of applying the chain rule and the product rule several times.

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The album that is most frequently cited as the beginning of fusion is "In a Silent Way" by Miles Davis. Released in 1969, it is often regarded as a groundbreaking and influential work that marked a significant shift in jazz and the emergence of fusion music.

"In a Silent Way" showcased a departure from Davis' previous acoustic jazz sound and incorporated elements of electric instruments, studio production techniques, and improvisational freedom. The album blended jazz with elements of rock, funk, and electronic music, creating a unique and experimental sonic landscape. The musicians involved in the recording, including Wayne Shorter, Herbie Hancock, and John McLaughlin, went on to become key figures in the fusion genre. This album laid the foundation for future fusion developments, influencing artists across various genres. Its atmospheric, ethereal, and exploratory nature set the stage for the fusion movement of the 1970s, which further integrated jazz with elements of rock, funk, and other genres. "In a Silent Way" remains a pivotal work in the history of fusion, symbolizing the fusion of diverse musical styles and the limitless possibilities of blending genres in innovative and creative ways.

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When a vehicle is approaching you, it is important to dim your high-beam headlights to low beams within a distance of approximately 500 feet.

This distance provides enough time for the oncoming driver to adjust their vision and safely navigate the road. By dimming your high beams, you reduce the risk of blinding the other driver and causing potential accidents or discomfort. Maintaining proper headlight etiquette promotes safety and ensures a clear line of sight for all drivers on the road, allowing for a smoother and more secure driving experience during nighttime or low visibility conditions.

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When the elevation of the sun above the horizon is at 90 degrees, the percentage of absorbed radiation is at its maximum.

At this angle, the sun's rays are perpendicular to the Earth's surface, resulting in the highest amount of solar radiation being absorbed. Therefore, the percentage of absorbed radiation is 100%.

When the elevation of the sun above the horizon is at 90 degrees, it means that the sun is directly overhead, which typically occurs at solar noon in most locations. At this position, the sun's rays are perpendicular to the Earth's surface.

However, without further information about the specific properties of the surface and the context in which the absorption is being measured, it is not possible to provide an exact percentage of absorbed radiation. The percentage would vary depending on factors such as the reflectivity (albedo) and material composition of the surface, as well as the presence of any intervening medium like air or water.

In general, when the sun is directly overhead (at 90 degrees elevation), a larger portion of the sunlight is likely to be absorbed by the surface compared to other angles, but the exact percentage would require more specific details.

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Explanation:

F = G*M1 *m2 / r²

g = G *M / R²

v= u+GT.

v² = u²+2gh.

s= ut + 1/2 gt²

W= mg.

pressure = thrust / area.

relative density = density of substance / density of water.

The statement is true because stellar evolution is one of the most thoroughly tested astronomical theories, as modern astronomers have observed the complete life cycle for many stars. This theory is supported by observational evidence gathered through various techniques.

The theory of stellar evolution suggests that stars undergo a predictable sequence of changes throughout their lifetime, starting from their formation and ending in their death as either a black hole, neutron star or white dwarf. This theory is supported by observational evidence gathered through various techniques, including the study of star clusters, supernovae, and the analysis of the chemical composition of stars. By examining the color, temperature, and luminosity of stars, astronomers can make predictions about the different stages of stellar evolution and test these predictions against observations.

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Answer:

Anything that has motion cannot be stopped

Explanation:

Answer:

equal and opposite reaction

Explanation: