Which element has a complete valence electron shell?

selenium (Se)
oxygen (O)
fluorine (F)
argon (Ar)

Answer:

a) DOWN direction,  b)  directed INTO THE SCREEN, c)    F = 0

Explanation:

The direction of the force is

for electric force

           F = q E

where we assume a positive test charge, for which the force has the direction of the electric field.

For a magnetic field

in this case the direction of the force is given by the right hand rule.

For a positive test charge, the thumb points in the direction of velocity, the other fingers extended in the direction of the magnetic field, and the palm gives the direction of force for a positive charge.

           F = q v x B

Let us apply these considerations to our case.

a) negative charge moving to the left

in a magnetic field points away from the screen

In this case the thumb goes to the left, the fingers extended outwards and the palm points upwards, but since the charge is negative the force has a DOWN direction.

b) negative charge moves to the left

in electric field it points off the screen.

The outside is in the direction of the electric field and since the charge is negative, the force is directed INTO THE SCREEN

c) positive charge moves down

in magnetic field points up

in this case the velocity and the field have the same direction so the vector product of them is zero

       F = q v  B sin 0

       F = 0

Answer:

D

Explanation:

uses less power ( the y axis) so is using less force

Answer:

The answer is D.

Hey wei. Go to your questions that I commented on.

Explanation:

Answer:

To create healthy water and more for more H (hydrogen)

Explanation:

Answer:

subs

Explanation:

I've seen subliminals online that are supposed to help shifting. You could see for yourself if they work for you. You could probably also use the method where you act like you already have your desires and results. I have seen a lot of people act as if they have their desires and affirm it constantly. Ex: you want to lose weight, so you act as if you already are your desired weight and tell yourself that you are such and such weight, and don't contradict it by saying that you aren't. I hope that this helps.

Answer:

Explanation: The moon of the Earth is much lighter in mass than the planet itself. In addition to being smaller than Earth, the Moon is also only approximately 60% as dense. A human weighs less on the Moon because there is less gravitational attraction there than there is on Earth.

Moon has lesser mass as conpared to earth, therefore gravitational force exerted by moon on any object is lesser than that of gravitational force exerted by earth on the same object, hence we can say that astronauts weight less on moon, i.e approximately 1/6 th of their weight on earth.

Answer:

The more massive an object is, the greater the gravitational force. Since gravitational force is inversely proportional to the distance between two interacting objects, more separation distance will result in weaker gravitational forces.

Explanation:

hope this help:)

The speed of the sound wave is 2000 meters per second.

The given calculation assumes a hypothetical medium where the speed of sound is 2000 m/s.The speed of sound can be calculated using the formula: speed = wavelength × frequency.Given that the wavelength of the sound wave is 2 m and its pitch produces a frequency of 1000 Hz, we can substitute these values into the formula:

Speed = 2 m × 1000 Hz = 2000 m/s.

It's important to note that the speed of sound can vary depending on the medium through which it is traveling. In air at standard temperature and pressure, the speed of sound is approximately 343 meters per second.

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The calculated value is 18 J. The energy an object has as a result of motion is known as kinetic energy.

A force must be applied to an object in order to accelerate it. We must put in effort in order to apply a force. After the work is finished, energy is transferred to the item, which then moves at a new, constant speed. Kinetic energy, which may be seen in the movement of an object, particle, or group of particles, is the energy of motion. Any moving item uses kinetic energy, such as a person walking, a baseball being thrown, a piece of food falling from a table, or a charged particle in an electric field.

Where v is maximum and i.ea= dt dv, Max K.E will occur.

​ \s =0

⇒F=0

X=3 when F=0

Work completed is what changed KE.

W=K.E= 0 3 (9x 2 )dx=[9x 3 x 3

​ \s ] \s0 \s3 \s​ \s =18J

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The work done on the box from y=0 to 6.0m is 120 J.

To calculate the work done on the box from y=0 to 6.0m, we need to find the area under the force vs. position graph over that interval.

First, we can find the work done from 0 m to 2 m. Since the force is constant at 40 N over this interval, the work done is simply:

W = F * d = 40 N * 2 m = 80 J

From 2 m to 6 m, the force is constant at -20 N, so the work done is:

W = F * d = (-20) N * 4 m = -80 J

Note that the negative sign indicates that the work is done by the box on the force (since the force is in the opposite direction of the displacement).

Therefore, the total work done on the box from y=0 to 6.0m is:

W_total = 80 J - 80 J = 0 J

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The pressure exerted on the floor by the athlete having a mass of 75 Kg is 58800 N/m²

How to determine the force

F = mg

F = 75 × 9.8

F = 735 N

P = F / A

P = 735 / 125×10¯⁴

P = 58800 N/m²

Thus, the pressure exerted on the floor is 58800 N/m²

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Both a dinosaur bone turning into rock over millions of years and baking a loaf of bread are examples of chemical changes.

In the case of the dinosaur bone turning into rock, the bone undergoes a process called fossilization, which involves the replacement of the organic materials in the bone with minerals over millions of years. The resulting rock is a new substance with different properties from the original bone.

Similarly, when you bake a loaf of bread, the ingredients undergo a series of chemical changes. The yeast in the dough ferments the sugars in the flour, producing carbon dioxide gas that causes the dough to rise. The heat of the oven then causes the dough to undergo a series of chemical reactions, including the Maillard reaction, which produces the characteristic flavor and color of bread. The resulting bread is a new substance with different properties from the original dough.

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An action which could increase the pair's angular velocity is the figure skater on the left pointing his right arm down instead of up.

Angular velocity simply refers to the rate of change of angular displacement of a physical object (body) with respect to time.

This ultimately implies that, angular velocity is a measure of how fast and quickly a physical object (body) rotates with respect to another point or how its angular displacement (position) changes with respect to time.

In this scenario, an action which could increase the pair's angular velocity is when the figure skater on the left points his right arm down instead of up.

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the skater on the left pulls the skater on the right closer to him

Explanation:

apex bliches

The metal bowl must displace 0.196 liters of castor oil in order to float.

Archimedes' principle states that when an object is placed in a fluid, the buoyant force on the object is equal to the weight of the fluid displaced by the object. In other words, the amount of fluid displaced by the object is directly proportional to the weight of the object.

We can use the weight density of castor oil, which is 9.42 N/L, to find the volume of oil displaced by the bowl.

Volume of oil displaced = Weight of bowl / Weight density of oil

Volume of oil displaced = 1.85 N / 9.42 N/L = 0.196 L

As a result, in order to float, the metal bowl must displace 0.196 liters of castor oil.

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The average acceleration of the motorcycle over the given distance is approximately 9.39 m/s².

To calculate the average acceleration of the motorcycle, we can use the formula:

Average acceleration = (final velocity - initial velocity) / time

First, let's convert the final velocity from km/h to m/s since the distance is given in meters. We know that 1 km/h is equal to 0.2778 m/s.

Converting the final velocity:

Final velocity = 78 km/h * 0.2778 m/s = 21.67 m/s

Since the motorcycle starts from rest (initial velocity is zero), the formula becomes:

Average acceleration = (21.67 m/s - 0 m/s) / time

To find the time taken to reach this velocity, we need to use the formula for average speed:

Average speed = total distance/time

Rearranging the formula:

time = total distance / average speed

Plugging in the values:

time = 50 m / 21.67 m/s ≈ 2.31 seconds

Now we can calculate the average acceleration:

Average acceleration = (21.67 m/s - 0 m/s) / 2.31 s ≈ 9.39 m/s²

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Two forces acting on the rocket immediately after leaving the launching pad are the gravitational force and the thrust force.

1. Gravitational Force: The gravitational force is the force exerted by the Earth on the rocket due to their mutual gravitational attraction. It acts downward and is responsible for the rocket's weight.

This force can be represented by the equation Fg = mg, where Fg is the gravitational force, m is the mass of the rocket, and g is the acceleration due to gravity. The gravitational force acts to pull the rocket downward, opposing its upward motion.

2. Thrust Force: The thrust force is the force generated by the rocket's engines as they expel exhaust gases in the opposite direction. It acts upward and propels the rocket forward.

The magnitude of the thrust force depends on factors such as the design of the rocket engines, the amount of fuel burned, and the rate of exhaust gas expulsion. The thrust force must be greater than or equal to the gravitational force for the rocket to overcome Earth's gravity and achieve upward acceleration.

Initially, when the rocket is launched, the thrust force is at its maximum while the gravitational force remains constant. As the rocket gains altitude, the gravitational force decreases slightly due to the increasing distance from the Earth's center.

However, the thrust force continues to be the dominant force propelling the rocket upward.

It's important to note that other forces such as air resistance and wind may also act on the rocket, but immediately after leaving the launching pad, these forces are typically negligible compared to the gravitational force and thrust force.

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Answer:

Explanation:

From  the question we are told that

   The mass of chlorine ion is \(m_c  =  35u  =  35 * 1.66*10^{-27} =  5.81*10^{-26}\ kg\)

    The charge is  \(q =  5e   = 5 *  1.60 *10^{-19} = 8.0*10^{-19}\ C\)

   The potential difference is  \(V  =  250 kV  =  250*10^{3}  \  V\)

    The radius of curvature of the path is  \(r = 3.5 \ m\)

Gnerally the magnetic force will cause the speed of the  chlorine ions to change from 0 m/s to \(v_y\) m/s along the y -axis but will not affect the velocity along the x-axis

Generally according the law of energy conservation

          \(K =  PE\)

Here K is the kinetic energy of the of the chlorine ions which is mathematically represented as

      \(K  =  \frac{1}{2} mv^2\)

And  PE is electric potential  energy which is mathematically represented as

       \(PE  =   Q *  V\)

So

      \( \frac{1}{2} mv^2 =  Q *  V \)

=>   \( \frac{1}{2} *  5.81*10^{-26}  *  v^2 =  8.0*10^{-19} *  250*10^{3} \)

=>    \( v =  sqrt{6.8847 *10^{12}} \)

=>    \( v = 2.634 *10^{6} \ m/s \)

The net force exerted on the 2.0 kg object by the 3.0 kg object is 14 N.

The net force acting on the 3.0 kg object is determined as follows:

Frictional force on acting on the 1.0 kg object = 0.2 * 1.0 * 10 = 2 N

Net force = 24 - 2 = 22 N

Net force acting at the end of the 2 kg object is determined as follows:

Net  force = applied force - frictional force

Frictional force on acting on the 1.0 kg and 3.0 kg object = 0.2 * 4.0 * 10 = 8 N

Net force = 22 - 8  = 14 N

Therefore, the net force exerted on the 2.0 kg object by the 3.0 kg object is 14 N.

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Answer:

Answer:

Analog to digital converters

Explanation:

An analog-to-digital converter (ADC)  is a device that converts analog signals such as sound into digital signals. Analog information is transmitted by modulating the signal and then amplifying the signal's strength. The conversion from analog to digital involves quantization of the input thereby reducing error or noise. The ADC produces the output data as a series of digital values (0's and 1's) with fixed precision.

Answer:

Analog to digital converter.

Explanation:

Three important type that covert analog signal to digital

1 flash ADC

2 Digital Ramp ADC

3 successive Approximation

Answer: unintelligent people live in blissful ignorance smart people know what they don't know and they know how bad life really is

Explanation: personal experience

People with moderate IQs and high EQs often experience greater success and happiness due to their ability to understand and manage emotions, navigate social interactions, and build strong relationships, which are crucial skills in both personal and professional contexts.

Emotional Intelligence (EQ) refers to the ability to recognize, understand, manage, and effectively use one's own emotions as well as the emotions of others. Research has shown that EQ plays a significant role in various aspects of life. People with high EQs are better equipped to handle stress, communicate effectively, resolve conflicts, and exhibit empathy and social awareness.

In contrast, while having a high Intelligence Quotient (IQ) is associated with cognitive abilities and problem-solving skills, it doesn't necessarily guarantee success in interpersonal interactions or emotional well-being. Those with high IQs but low EQs may struggle with social cues, forming connections, and adapting to different situations.

In the workplace, individuals with high EQs are often strong leaders, effective team players, and skilled communicators. They can manage their own emotions during challenges and remain empathetic to the feelings of others. This leads to improved collaboration, reduced conflicts, and better decision-making.

In personal relationships, individuals with high EQs tend to foster healthier and more meaningful connections. They can navigate disagreements with empathy, show genuine interest in others, and provide emotional support when needed.

In summary, the combination of moderate IQs and high EQs results in a balanced set of skills that contribute to overall success and happiness. While cognitive abilities are essential, emotional intelligence is equally important for personal and professional growth, enabling individuals to excel in various areas of life.

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From the histogram given, there were at approximately 7 downloads between 3pm and 4pm . This can be derived by counting the rows in that time period.

A histogram is a graph that depicts the frequency distribution of a few data points from a single variable.

Histograms frequently divide data into "bins" or "range groups" and count the number of data points that belong to each of those bins.

Histograms are frequently used to depict the key properties of data distribution in a handy format. It is especially beneficial when working with huge data sets (more than 100 observations). It can aid in the detection of uncommon observations (outliers) or gaps in the data.2

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The metal with the highest heat capacity between metals A.25 B.35 C.10 and D.15 is metal A.

Heat capacity is the amount of heat required to raise the temperature of a substance by one degree Celsius. Metal A has a heat capacity of 400 J/kg°C, which means that it takes 400 joules of heat to raise the temperature of one kilogram of metal A by one degree Celsius.

Metal B has a heat capacity of 285.7 J/kg°C, metal C has a heat capacity of 1000 J/kg°C, and metal D has a heat capacity of 666.7 J/kg°C. Therefore, metal A has the highest heat capacity of the four metals.

Metal A's high heat capacity means that it can absorb a lot of heat without its temperature changing very much. This makes metal A a good material for things like heat sinks and thermal insulation.

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Answer:

c.electrical to mechanical

Explanation:

Answer:

Explanation:

The momentum of an object can be found by using the formula

momentum = mass × velocity

From the question we have

momentum = 141 × 13

We have the final answer as

Hope this helps you

Answer:

brain

Explanation:

Answer:

The interaction with the highest electrostatic potential energy is:

A +1 and -2 particle separated by a distance of 5 nm.

Explanation:

The electrostatic potential energy between two charged particles depends on the magnitude of their charges and the distance between them. The formula for calculating electrostatic potential energy is:

U = k * (q1 * q2) / d

where U is the electrostatic potential energy, k is Coulomb's constant, q1 and q2 are the magnitudes of the charges, and d is the distance between them.

In the given options, the interaction between +1 and -2 particles separated by a distance of 5 nm has the highest electrostatic potential energy because the charges have a higher magnitude (compared to other options) and they are close to each other, resulting in a stronger electrostatic force of attraction. The other options either have smaller charges, larger distances, or both, leading to lower electrostatic potential energy.

Answer:

7.447

Explanation:

Answer:

ok

Explanation:

ok ok I will thanks for free