What does 2+ on an atom mean?

Answer:

The ideal mechanical advantage, IMA, is the same but in absence of FRICTION! In this case you can use the concept known as CONSERVATION of ENERGY.

Explanation:

There i hope u i like it.

The quantity of times a machine enhances an input force is referred to as its mechanical advantage. The ratio of the output force to the input force is the true mechanical advantage. The mechanical advantage a machine has when there is no friction is its ideal mechanical advantage.

The ratio of output force to input force is what determines the true mechanical advantage. The mechanical advantage in an ideal environment is the mechanical advantage now. It's the product of the input and output distances.

The mechanical benefit currently exists because it would exist in a perfect situation. The input and output distances were combined to create it. The optimal mechanical advantage of a machine is the one it has when there is no friction.

Therefore, The mechanical advantage of a perfect machine, or IMA, is one in which there is no loss of productive work resulting from friction between moving parts.

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Answer:

550 m/s

Explanation:

Speed of wave = wl * f      wl = 1,25 m    f = 440 Hz  (given)

                          1.25 m * 440 = 550 m/s

Many electrical appliances and circuits are earthed in order to prevent electrocution.

Electrocution is defined as the outcome of an electric shock that occurs when electric current with high voltage passes through the body of a living organism.

The clinical manifestations of electrocution include the following:

When electrical appliances and circuits are constructed, a pathway for a faulty current to flow to the earth is mare to prevent electric shock which may lead to an electrocution.

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The net force acting on the two (2) kids is equal to 180 Newton.

Given the following data:

To determine the net force acting on the two (2) kids:

First of all, we would calculate the total mass of the two (2) kids:

\(Total\;mass = 50+40\)

Total mass = 90 kg.

In this exercise, you're required to calculate the magnitude of the net force that is acting on these two (2) kids running down the hall. Thus, we would apply Newton's Second Law of Motion.

Mathematically, Newton's Second Law of Motion is given by this formula;

\(Net\;force = mass \times acceleration\)

Substituting the given parameters into the formula, we have;

\(Net\;force = 90 \times 2\)

Net force = 180 Newton.

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If the person is currently experiencing a sound level of 122 dB from all four jet engines, shutting down three of them would result in a reduction of the total sound intensity by a factor of 8 (2^3). This means that the new intensity would be one-eighth of the original intensity. Therefore, if the captain shut down all but one engine, the person would experience a sound level of approximately 116 dB, which is still quite loud but significantly less than the original level of 122 dB.

To calculate the new sound level, we can use the formula:
β = 10 log(I/I0)
where β is the sound level in decibels, I is the sound intensity, and I0 is the reference intensity (the lowest intensity that a human ear can detect, which is approximately 10^-12 W/m^2). Assuming that the sound intensity from one engine is the same as the sound intensity from all four engines combined (which may not be entirely accurate, but is a reasonable assumption for the purposes of this question), the new intensity would be: I_new = I_orig / 8
Plugging this into the formula, we get:
β = 10 log(I_new/I0)
β = 10 log((I_orig/8)/I0)
β = 10 log(I_orig/I0) - 10 log(8)
Since the reference intensity I0 is constant, we can simplify this to:
β = β_orig - 10 log(8)
Plugging in the original sound level of 122 dB, we get:
β = 122 - 10 log(8)
β ≈ 116 dB
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Answer:

true

Explanation:

have a great day........

The answer is option c - It will divide in half to form two new cells..

Explanation:

The sentence that best describes what happened during cell growth is ;

( D ) It will become larger by taking in nutrients

As the yeast cells begin to grow ( i.e. cell growth ), they will require more nutrients and as they take in the necessary nutrients they will gradually increase in size ( becoming larger ) which is a vital sign of cell growth and development, which will be seen in the yeast cells as they undergo cell growth.

The production of offsprings with a mate does not describe an activity that occurs in cell growth.  

Hence we can conclude that The sentence that best describes what happened during cell growth is, It will become larger by taking in nutrients.

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Answer:

comets

Explanation:

Comets have a tail unlike any other answer choice and it has a core of ice and dust. Many think comets do not orbit the sun, but they do. They orbit in a eliptical orbit, so they take a long time to orbit back to the sun.

A property that can be observed without changing the identity of a substance is a Physical Property.

A physical property is a property that can be observed or measured without changing the composition of the substance. They are used to observe and describe matter. Texture, color, smell. Melting point, boiling point, density, solubility, polarity, electrical conductivity, ductility, ductility, luster, sound intensity, etc., are some examples of physical properties.

Physical properties are often characterized as strength and general properties. Intensive properties do not depend on the size or extent of the system, nor on the amount of matter in the object, while extensive properties exhibit an additive relationship. These classifications are generally valid only if the smaller subdivisions of the sample do not interact in a physical or chemical process when combined.

Goods can also be classified according to the meaning of their nature. For example, isotropic properties do not vary with viewing direction, while anisotropic properties have spatial variance.

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Answer:

Acceleration (b) not sure tho

Explanation:

Oil is used in industrial hydraulic systems, because It is environmentally safe. Option C is correct.

Hydraulic systems work and accomplish tasks by utilizing a pressured fluid. Another way to say it is that the pressurized fluid makes everything operate.

Because of the tremendous power of liquid fuel in hydraulics, hydraulics are often utilized in heavy machinery.

Oil is used in industrial hydraulic systems, because It is environmentally safe.

Hence,option C is correct.

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Answer:search this up but put quizzlet at the end it should be there

Explanation:

Yes, all the jovian planets (also known as gas giants) lie beyond the asteroid belt in our solar system.

The jovian planets include Jupiter, Saturn, Uranus, and Neptune. They are characterized by their large size, primarily composed of hydrogen and helium, and lack of a solid surface.

These planets are located in the outer region of the solar system, beyond the asteroid belt, which is situated between the orbits of Mars and Jupiter.

The asteroid belt is a region of space that contains numerous small rocky bodies called asteroids. It is located primarily between the orbits of Mars and Jupiter.

The jovian planets are located farther out from the Sun and are separated from the inner rocky planets (Mercury, Venus, Earth, and Mars) by this asteroid belt.

Therefore, it is correct to state that all the jovian planets lie beyond the asteroid belt.

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At the bottom of the ramp, the skater has 360 Joules of gravitational energy.

E = 60 x 9.8 x 6 = 360 Joules are used to calculate this using the equation E = mgh, where m = 60 kg, g = 9.8 m/s2, and h = 6 m.

Detailed explanations are provided below. Step 1: Identify the formula for determining an object's gravitational energy.

The gravitational energy equation is E = mgh, where m is the mass of the object, g is the acceleration caused by gravity (9.8 m/s²), and h is the height above the ground.

Step 2: Step 3: Determine the values of m, g, and h. In this instance, m equals 60 kg, g equals 9.8 m/s², and h equals 6 m. Determine the energy of gravity.

The gravitational energy can be calculated as E = 60 x 9.8 x 6 = 360 Joules using the equation.

The energy that an object possesses or acquires as a result of a change in its position when it is surrounded by a gravitational field is known as gravitational potential energy. Simply put, gravitational potential energy is energy that is associated with gravity or the gravitational force.

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Answer:

+7.0 m/s

Explanation:

Let's take rightward as a positive direction.

So in this problem we have:

a = -2.5 m/s^2 acceleration due to the wind (negative because it is leftward)

t = 4 s time interval

v = -3.0 m/s is the final velocity (negative because it is leftward)

We can use the following equation:

v = u + at

Where u is the initial velocity

We want to find u, so if we rearrange the equation we find:

u = v - at = (-3m/s) - (-2.5m/s^2) (4s) = +7.0m/s

and the positive sign means the initial direction was rightward.

The process of a gas cylinder floating in a large tank of water is an example of an equilibrium process.

The gas cylinder floating in a large tank of water represents a state of equilibrium. In this scenario, the gas cylinder is immersed in the water, and the forces acting on it are in balance.

When the gas cylinder is placed in the water, it experiences an upward buoyant force due to the displacement of water by the cylinder. This buoyant force is equal to the weight of the water displaced by the cylinder. According to Archimedes' principle, this buoyant force is equal to the weight of the gas cylinder itself.

Simultaneously, the gas cylinder experiences a downward gravitational force due to its own weight. For the cylinder to float, these two forces must be equal.

As a result, the floating gas cylinder represents an equilibrium state, where the buoyant force and the gravitational force are balanced. This equilibrium occurs because the density of the gas in the cylinder is lower than the density of the water, allowing it to displace a volume of water that is equal to its own weight.

Therefore, the process of a gas cylinder floating in a large tank of water is an example of an equilibrium process where the upward buoyant force equals the downward gravitational force.

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Where W is the work done on the proton (in joules), q is the charge of the proton (1.602 x 10^-19 C), and V is the potential difference (in volts).

The potential difference that stopped the proton can be determined using the equation:
ΔV = (m/q) * (v/f)
Where ΔV is the potential difference, m is the mass of the proton, q is the charge of the proton, v is the initial velocity of the proton, and f is the distance the proton travels before stopping.

Assuming that the proton is traveling in a vacuum and experiences no other forces besides the electric field, we can assume that the proton's initial velocity is equal to the speed of light, or 3 x 10^8 m/s.
The mass of a proton is approximately 1.67 x 10^-27 kg, and the charge of a proton is 1.6 x 10^-19 C.
If the proton travels a distance of 150 meters before coming to a stop, we can plug these values into the equation:
ΔV = (m/q) * (v/f)
ΔV = (1.67 x 10^-27 kg / 1.6 x 10^-19 C) * (3 x 10^8 m/s / 150 m)
ΔV = 6.54 x 10^-9 V

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Answer:

ummmmmwm whattt

Explanation:

wuhsnnsnsnsnms

Answer:

medicines

band-aids

aqua liquid

paracetamol

Explanation:

Extra items:

alcohol

cottons

bitadine

cotton buds

mask

Answer:

1.7 g/cm³

Explanation:

Given that:

Density of substance = 3.4 g/cm³

Relative density to another substance = 2

Density of second substance=?

Let density of second substance = x

Relative density = density of substance / density of second substance

Relative density = density of substance / x

2.0 = 3.4g/cm³ / x

2 * x = 3.4 g /cm³

x = 3.4 g/cm³ ÷ 2

x = 1.7 g/cm³

Answer:

Δ p = F net Δ t

Answer:

hey from what I know the answer is C

Explanation:

When a book is kept on a table , weight (gravitational force) of book acts on table vertically downwards and as a reaction of weight , table also exerts an equal and opposite ( upward) force on book .

Answer:

force

Explanation:

work done x time the person can determine

not sure really what to answer but here are 4 parts.

personal care

1.) working out

2.) brain games

3.) Manual labor

4.) Sleep to make you relaxed and have energy for the next day

5.) working a job (if you have one)

school relate

1.) studies for at least 15 minutes since a humans intention spam is around 15 minutes

2.) Homework

3.) taking notes

4.) Analysis your progress

5.) Test yourself if you remember the information

if a student is sitting down for 5 hours doing nothing, he would soon be getting drowsy because lack of activity along with potentially getting depression or some other kinds of related features.

that last question I don't know how to answer that. that's all you bud.

Answer:

To be better at something

Explanation:

I have Accelerated at cooking

Answer:

Acceleration means to speed up

Explanation:

a) The net electric force on an electron located at the origin is 2.37 × 10^(-3) N, directed in the positive x-axis direction.

To calculate the net electric force, we need to find the individual forces between the charges and the electron and then add them vectorially.

The electric force between two charges q1 and q2 is given by Coulomb's law: F = k * q1 * q2 / r^2, where k is the electrostatic constant and r is the distance between the charges.

The force on the electron due to q1 is F1 = k * q1 * qe / r1^2, where qe is the charge of the electron. Similarly, the force on the electron due to q2 is F2 = k * q2 * qe / r2^2. The net force on the electron is the vector sum of F1 and F2.

Calculating the forces and summing them up, we find that the net electric force on the electron is F_net = F1 + F2 = 2.37 × 10^(-3) N in the positive x-axis direction.

b) To find the position where a positive charge q3 should be placed so that the net force on the electron is zero, we need to consider the forces between the charges. Since the net force is zero, the magnitude and direction of the force due to q3 must be equal and opposite to the forces due to q1 and q2.

The force between q3 and the electron is given by F3 = k * q3 * qe / r3^2, where r3 is the distance between q3 and the electron.

To cancel out the forces from q1 and q2, we need to have F1 + F2 = -F3. Rearranging the equation, we find q3 = -(F1 + F2) * r3^2 / (k * qe).

Substituting the values of F1, F2, r3, k, and qe into the equation, we can calculate the value of q3. The position of q3 is determined by the coordinates where it is placed.

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Answer:

there are go fella hope u understood

The mass of the object is 20 g

The first step is to write out the parameters given in the question

Force- 500 N

acceleration= 25 m/s²

mass= force/acceleration

= 500/25

= 20

Hence the mass  of the object is 20g

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The mass of the coin will decrease after the electrons are transferred and it will decrease by a percentage of -

[- (n x 9.1 x 10⁻³¹) / m] x 100 

We have a Penny (Coin) from which some electrons are transferred

We have to determine by what percentage do the transferred electrons change the mass of the penny.

The sufficiency or deficiency of electrons leads to the development of charge.

According to the question -

Assume the mass of penny when no electrons are transferred is m kg.

Now, suppose you rubbed the coin against your hand and the coin lost some of its electrons. Let this number be n. Now, the mass of electron is 9.1 × \(10^{-31}\) kilograms.

The total mass in kilograms lost will be -  

(n x 9.1 × 10⁻³¹) Kg

Therefore - the total mass of coin after loosing electrons will be →

m - (n x 9.1 × 10⁻³¹ ) Kg

There will be decrease in the mass of the penny. The amount of decrease in mass will be → final mass - initial mass =

m - (n x 9.1 × \(10^{-31}\)) - m = - (n x 9.1 × \(10^{-31}\)).

This negative sign indicates that the mass has decreased.

Hence, the mass of the coin after transferring the electrons will decrease and it will decrease by percentage of →

[- (n x 9.1 x 10⁻³¹)/m] x 100    

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Approximately 0.370 seconds after you drop the stone into the well, you will hear it hit the bottom.

To determine how soon after you drop the stone into the well you will hear it hit the bottom, we need to consider the speed of sound and the time it takes for the sound to travel back up from the bottom of the well to your ears.

The speed of sound in air is approximately 343 meters per second (m/s).

The time it takes for the sound to reach the bottom of the well can be calculated using the equation:

time = distance / speed

In this case, the distance is the depth of the well (d), which is given as 127.0 m.

So, the time it takes for the sound to reach the bottom of the well is:

time = 127.0 m / 343 m/s

Calculating this, we find:

time ≈ 0.370 s

Therefore, approximately 0.370 seconds after you drop the stone into the well, you will hear it hit the bottom.

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For this question, you are asked to analyze different motions and provide three pieces of information for each exercise:

a. Translate the description of the motion into simpler words and describe how to reproduce the motion or explain why it's not possible.
b. Sketch position vs time (x vs t), velocity vs time (u vs t), and acceleration vs time (a vs t) graphs for the motion.
c. Draw a diagram of a track with a ball, indicating the initial location and direction of the ball, the location of x = 0, and the positive direction.
To answer this question, you would first need to be provided with the specific motion exercises.

Once you have the motion exercise, you can follow the steps mentioned above to break down the motion into simpler words, create the necessary graphs, and create a diagram illustrating the motion.

Summary: Analyzing a motion exercise requires you to translate the motion into simpler terms, create position, velocity, and acceleration graphs, and draw a diagram with a track and ball to illustrate the motion. Provide the specific motion exercises to get the required analysis.

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