An unbalanced 16.0N force is applied to a2.0kg mass. What is the acceleration of the mass?

Answer:

B)

Explanation:

a brilliant work on all the principles it open up a whole new world and change the world algebraicly

Answer:

B. A car sits at rest at a stop sign.

Answer:

A. Drawings are no longer used because photography is more precise.

Explanation:

It is common practice for investigators to make a sketch of a crime scene.

Creating sketches of crime scenes is a common practice among investigators, as it provides valuable visual documentation that complements photographs and written notes. While photography is an important tool for capturing detailed and precise information, sketches offer unique advantages that contribute to the overall understanding of the crime scene.

Sketches can provide a clear and organized representation of the spatial relationships, distances, and dimensions within the crime scene. They can accurately depict the layout of the area, the position of evidence, the location of key objects, and other relevant details that may not be fully captured by photographs alone.

Additionally, sketches allow investigators to emphasize specific features or elements that are essential to the case. This can aid in explaining the sequence of events, the movement of individuals or objects, and other dynamic aspects of the crime scene.

While digital photography is widely used today, sketches remain valuable for scenarios where a camera may not immediately be available, when capturing certain angles or perspectives is challenging, or when highlighting specific details is necessary.

Investigators are trained in creating accurate and detailed sketches that adhere to professional standards. This includes ensuring accurate measurements, using appropriate scale ratios, labeling key features, and maintaining object proportions. Sketched crime scene diagrams are often included in official investigative reports and court proceedings to provide a comprehensive visual representation of the crime scene, enhancing the communication of information among investigators, legal professionals, and jurors.

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The expression \(X^{N} + Y^{N}\)is not divisible by X - Y (where Y is not equal to 0).

To determine whether the expression \(X^{N} + Y^{N}\) is divisible by X - Y (where Y is not equal to 0), we can use the factor theorem and the property of binomial expansion.

The factor theorem states that if a polynomial P(x) is divisible by (x - a), then P(a) equals zero. In our case, if \(X^{N} + Y^{N}\) is divisible by (X - Y), then when we substitute X = Y into the expression, the result should be zero.

Let's substitute X = Y into the expression:

\(Y^{N} + Y^{N}\)

Since \(Y^{N}\) is equivalent to \(Y^{N}\) , the expression becomes:

2(\(Y^{N}\))

We can see that the expression 2(\(Y^{N}\)) is not equal to zero unless Y is equal to zero. Therefore, if Y is not equal to zero, \(X^{N} + Y^{N}\) is not divisible by X - Y.

In summary, unless Y is equal to zero, the expression \(X^{N} + Y^{N}\) is not divisible by X - Y according to the factor theorem and the given condition.

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Answer:

B

hmgzzvmfzfjlpdyktdkdtdk

Answer:

b

Explanation:

flgifidfididicudifidififificiduxididixuduxi

Answer:

an acronym because it is shorted to remember like mvemjsun it's the planet

The correct statement which best describes a magnetic object from among the options above is:

They have many spinning electrons oriented in the same direction that create magnetic fields.

The correct answer choice is option a.

When magnetic material spins its electrons in the same axis in the magnetic field, the force of current which passes through the same direction results in the attraction which exists between the magnetic object and magnetic substance.

So therefore, we can now confirm that when we consider the orientation of electrons of magnetic material in a direction similar to field, it causes attraction.

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Answer:

  $900 trillion

Explanation:

If Alaska is 20% of the contiguous US, then the approximate area of interest is ...

  1200 miles × 3000 miles = 3.6×10^6 square miles.

The size of a dollar bill is about ...

  (6.5 cm)·(15.5 cm) = 100.75 cm^2

One mile is 160,934.4 cm, so 1 square mile is about ...

  1 mi^2 = (160,934.4 cm)^2 ≈ 2.59·10^10 cm^2

The number of dollars of interest is then ...

  (3.6 · 10^6 mi^2)(2.59 · 10^10 cm^2)/(100.75 cm^2) ≈ 9.3·10^14

  ≈ 930 × 10^12 . . . dollars

It would cost about 900 trillion dollars to cover the land area of the US in $1 bills.

The magnitude of the electric flux through the sheet is 4.05 N m² C⁻¹ (Option E).

The electric flux through a surface is given by the product of the electric field strength and the area of the surface projected perpendicular to the electric field.

In this case, the electric field strength is 18 N C⁻¹, and the area of the sheet projected perpendicular to the electric field is 0.450 m²

(since the normal to the sheet makes an angle of 60° with the electric field). Multiplying these values gives the electric flux:

Electric flux = Electric field strength × Area

Electric flux = 18 N C⁻¹ × 0.450 m²

Electric flux = 8.1 N m² C⁻¹

In summary, the magnitude of the electric flux through the sheet is 4.05 N m² C⁻¹. This value is obtained by multiplying the given electric field strength by the projected area of the sheet perpendicular to the electric field.

The angle of 60° is taken into account to determine the effective area for calculating the flux.(Option E).

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If the conditions remain the same after a reaction has reached equilibrium with a particular set of conditions, the reaction will never leave equilibrium, according to Le Chatelier's Principle.

What is Le Chatelier's Principle?

The equilibrium will change in a direction to partially counterbalance the stress and re-enter equilibrium when stress is given to a system that is at equilibrium, according to this theory. Le Chatelier's theory merely provides a simple method to predict which direction the reaction would run in response to a stress applied to the system at equilibrium, not an explanation of what occurs at the molecular level to cause the equilibrium shift.

What is Equilibrium?

Changes in a system's internal state, which is defined by its temperature, pressure, density, and any other values required to fully describe its condition. When a system is in strict thermodynamic equilibrium, its temperature is constant (otherwise, heat would flow through it) and any gradients in its state functions, such as pressure or density, are counterbalanced by outside forces, keeping them constant.

Hence, If the conditions remain the same after a reaction has reached equilibrium with a particular set of conditions, the reaction will never leave equilibrium, according to Le Chatelier's Principle.

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The piece of information that "9” gives about an atom of fluorine is that it is the atomic number (option A).

Atomic number is the number of protons in an atom with the symbol Z. The atomic number is the basis of arrangement of atoms on the periodic table.

Fluorine is a chemical element that has an atomic number of 9. It is the lightest of the halogens, a pale yellow-green, highly reactive gas that attacks all metals.

The atomic number is the number of protons in the nucleus of an atom, which is always equal to the number of electrons in a neutral atom.

Therefore, it can be said that "9" symbolises the atomic number of the element, fluorine.

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Answer:524 Hz

Explanation:

Approximate frequency, heard in other car, when two car approaches each other, before they cross each other is 524 Hz.

Frequency of wave is the number of waves, which is passed thorough a particular point at a unit time.

For the two cars approaching each other the Doppler formula to find the frequency of second car is given as,

\(f_2=\dfrac{V_s+V_2}{V_s-V_1}f_1\)

Here, \(V_s\) is the speed of the sound.

Two cars approach each other from opposite directions.The velocity of car one is 54 km/h and the velocity of the car two is also 54 km/h.

Convert the unit of velocity of the car as,

\(\rm 54km/s=54\times\dfrac{5}{18}m/s\\\rm 54km/s=15m/s\)

As we know that the speed of the sound is 340 m/s and one of the cars emits a note of frequency 480 Hz.

Thus, putting the values in the above formula to find out the frequency heard in the other car before they cross each other as,

\(f_2=\dfrac{340+15}{340-15}480\\f_2=524.3\rm Hz\)

The approximate frequency heard in the other car before they cross each other is 524 Hz.

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Answer:

A. Rocket A will travel farther horizontally than rocket B.

Explanation:

This is because from the x axis, 40 m/s at 90 degrees travels directly vertical. 40 m/s at 70 degrees is slightly horizontal, so it will travel further horizontally.

part a) If Q increases by 5 times its original value, the electrostatic force (F) will increase5 times as well.

part b) If r is halved (reduced by 2), the force will become four times stronger (since 2² = 4).

part c) If Q1 is positive and Q2 is negative, the charges will attract each other.

part d) If the force that Q1 exerts on Q2 is 5 times larger than the force that Q2 exerts on Q1 is same.

The electrostatic force is described as the force of attraction or repulsion between two charged particles.

With regards to Coulomb's Law, we have that the electrostatic force between two charges separated by a distance is :

Force = k * (Q1 * Q2) / r²

Where:

F_ =  electrostatic force

k = electrostatic constant

Q1 and Q2 =  magnitudes of the charges

r = distance

for case a:

If one of the charges, Q1 or Q2, increases by 5 times then the electrostatic force  will also increase by 5 times.

case b)

If the distance between the charges, r, is halved, the electrostatic force   will become four times stronger because (1/r²).

for case c.

if Q1 is positive and Q2 is negative, the charges will attract each other because of magnetic laws.

for case d.)

If the force that Q1 exerts on Q2 is 5 times larger than the force that Q2 exerts on Q1 is same as there is a resulting stronger gravitational or electromagnetic force.

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The radius of gyration of a molecule can be determined using scientific tools.

what are the methods to measure the molecular weight ?

Molecules are not simple forms; unlike the reasonably obedient, mathematically uncomplicated atom, which is spherical, molecules are challenging to characterise as basic shapes. As a result, two measures have established industry standards: the radius of gyration and the hydrodynamic radius, and analytical tools are designed to acquire these.

GYRATION RADIUS

The radius of gyration of a molecule can be determined using scientific tools. It is measured directly using static light scattering; however, this approach has difficulties for sizes less than 10-15nm, as well as for big molecules such as polysaccharides. Viscometers are the most often used instrument for calculating radius of gyration using the Flory-Fox equation.

HYDRODYNAMIC RADIUS

This is a behavioural attribute of a material - a size measurement based on how it moves - which makes it far more helpful in industrial or practical situations.

It is measured directly using static light scattering; however, this approach has difficulties for sizes less than 10-15nm, as well as for big molecules such as polysaccharides.

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The statement that describes the transformation of the graph of function f onto the graph of function g is: The graph shifts 2 units right and 7 units down.

To determine the transformation of the graph of function f onto the graph of function g, we compare the two functions f(x) and g(x) and observe the changes in the equations.

The function f(x) = (1/x - 3) + 1 represents a reciprocal function that is shifted vertically 1 unit up and horizontally 3 units to the right. The reciprocal function is reflected about the line y = x.

The function g(x) = (1/(1 + 4)) + 3 simplifies to g(x) = 4 + 3 = 7, which is a constant function representing a horizontal line at y = 7.

By comparing the equations, we can see that the transformation from f(x) to g(x) involves the following changes:

The term 1/x in f(x) is replaced by the constant 1/(1 + 4) in g(x), resulting in a vertical shift of 7 units up.

The term -3 in f(x) is replaced by 3 in g(x), resulting in a vertical shift of 3 units up.

The +1 in f(x) is replaced by +3 in g(x), resulting in an additional vertical shift of 2 units up.

Therefore, the overall transformation is a shift of 2 units to the right and 7 units down.

Hence, the correct statement is: The graph shifts 2 units right and 7 units down.

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Answer:

If Earth hadn't been hit by Orpheus, it would be covered by ocean, with perhaps a few mountaintops emerging through the water. There would be no humans, but there could be other forms of life. Earth would rotate rapidly, as the moon would not be present to produce the tidal friction that slows Earth's rotation today

The pollution from the first plant would be half that of the second plant for the same amount of energy produced.

The energy efficiency of a coal plant refers to the amount of energy produced per unit of fuel consumed. If the first plant is twice as energy efficient as the second plant, it means that it can produce the same amount of energy using half the amount of fuel.

Since pollution from coal plants is directly proportional to the amount of fuel consumed, the first plant would produce half the pollution of the second plant for the same amount of energy produced. This assumes that the two plants have the same level of emissions per unit of fuel consumed, which may not necessarily be the case.

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The magnitude of current in the 6Ω resistor is 0.72A.

EMF stands for electromotive force, which is the energy supplied by a source (such as a battery or generator) per unit of charge that passes through it, measured in volts. It represents the potential difference between the two terminals of the source when it is not connected to any circuit.

From the circuit diagram, we can see that the current flowing through the 6Ω resistor can be found by using Ohm's Law:

V = IR

where V is the voltage across the 6Ω resistor, I is the current flowing through it, and R is the resistance of the resistor.

To find V, we need to use Kirchhoff's Voltage Law (KVL) to determine the total voltage drop across the circuit. Starting from the top left corner and moving clockwise, we have:

V1 (emf) = IR1 + V2 (emf)

V2 (emf) - IR2 - IR1 = 0

Substituting V2 = -IR2 - 0.2I (since emf 2 has an internal resistance of 0.2Ω) into the first equation, we get:

V1 = I(R1 + R2 + 1) + 0.2I

Simplifying, we get:

V1 = I(7Ω) + 0.2I

Now we can solve for I:

I = V1 / (7Ω + 0.2Ω)

I = V1 / 7.2Ω

To find V1, we can use KVL again, starting from the bottom left corner and moving clockwise:

V1 - IR1 - V2 = 0

V1 - IR1 - (IR2 + 0.2I) = 0

Substituting V2 = -IR2 - 0.2I, we get:

V1 = I(R1 + R2 + 0.2) = I(7.2Ω)

Now we can substitute this expression for V1 into the equation for I:

I = (I(7.2Ω)) / (7Ω + 0.2Ω)

Simplifying, we get:

I = 0.72A

Therefore, the magnitude of current in the 6Ω resistor is 0.72A.

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In a ocean full of storms

A new wave was born

Deep into that darkness flooding

Suddenly, I heard some pummeling

By the grave I saw the winds

And the sun just shined

Answer:

a friendly face that comes with waves,

the waves of all the memorial days,

and with these days we smile with pride,

as for the waves we used to ride,

given up the day has passed,

how it went away like an hour glass,

as if we knew the world was right,

just like the waves, oh so bright,

the time has come the days have passed,

the waves ashore the waves alast,

as if the friendly face was right,

the waves that rode, oh goodnight.

The forces F3 and F6 form a couple since they are parallel, act in the same directions, and have the same magnitude (both are 3N), but they do not have the same point of application.

A couple is a pair of equal but disjointed forces that act in opposite directions and along parallel lines of force.

The rigid body rotates about its center of mass as a result of the forces acting on it at various places.

We can observe that the forces F3 and F6 in the provided set of forces are parallel, have the same magnitude of 3N, and act in opposite directions.

However, because they are applied to various locations on the rigid body, the body will rotate as a result. The stiff body tends to rotate around its center of mass because of this phenomenon, which is known as a couple.

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Explanation:

I , 2, 2,1

.............

.........

Answer:

because they are found freely in nature uncombined so they are highly reactive with other elements

Newton's second law we can find that the correct answer is:  

 E)  It cannot be determiner whick block has more masses from the information provided

Newton's second law establishes the relationship between force, mass, and acceleration of a body. Since force and acceleration are vector quantities, their components must be added on each axis

For this problem we have two bodies, let's write Newton's second law for the body B, we assume that the body B descends

            W_b - T = m_b a

            W_b  = m_b g

            m_b - T = m_b a

Where W_b is the weight of block B, T the tension of the string, mb the mass of block b and the acceleration

Now let's find the relation for block A

let's set a datum with the x axis parallel to the ramp

           T - Wₓ = mₐ a

           sin θ = Wₓ / W

            Wₓ = Wₐ sin θ

             Wₐ = mₐ g

Where Wₓ is the component of the weight, Wₐ the weight of the body A and θ the angle of the plane

Let's write our system of equations

           m_b g - T = m_b a

           T - mₐ g sin θ = mₐ a

let's add the equations

            g (m_b - mₐ sin θ) = (m_b + mₐ) a

            a =   \(\frac{m_b - m_a \ sin \ \theta}{m_b+m_a} \ g\)

Let's analyze this expression

          m_b - mₐ sin θ > 0

           m_b - mₐ  sin θ <0

We can observe that the acceleration is positive or negative depending on the relation of the masses and the angle of the plane.

In conclusion using Newton's second law we find that the correct answer is  

 E )   It cannot be determiner whick block has more masses from the information provided

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Answer:

The toy car

Explanation:

the real car is parked so yeah but maybe in some way technically the real car has more "momentum"

v=mc2

Explanation:

the calulations of v is 78 so mc2 that u wull ggetr aprox 12mvc

Answer: 0.516 ft/s

Explanation:

Given

Length of ladder L=20 ft

The speed at which the ladder moving away is v=2 ft/s

after 1 sec, the ladder is 5 ft away from the wall

So, the other end of the ladder is at

\(\Rightarrow y=\sqrt{20^2-5^2}=19.36\ ft\)

Also, at any instant t

\(\Rightarrow l^2=x^2+y^2\)

differentiate w.r.t.

\(\Rightarrow 0=2xv+2yv_y\\\\\Rightarrow v_y=-\dfrac{x}{y}\times v\\\\\Rightarrow v_y=-\dfrac{5}{19.36}\times 2=0.516\ ft/s\)

Answer: -18

Explanation:

Answer:

its -18

Explanation:

Khan Academy

The chicken needs to have an acceleration such that after time t his Velocity is 0, shown in the equation:

0 = V + at

-5.8 = 1.1 x a

a = -5.8 / 1.1

a = -5.2727 m/s/s.

The distance traveled in a time t with velocity V and acceleration is given by:

D = Vot + 1/2 at2

D = 5.8 x 1.1 - 1/2 x 5.2727 x 1.12

D = 3.19m.

Acceleration is the name we give to the process of changing velocity. Velocity is both speed and direction, so there are only two ways to accelerate. Either change speed, change direction, or change both. There are three main types of accelerated motion uniform acceleration, unequal acceleration, and average acceleration.

The term uniform acceleration refers to the motion of a body moving in a straight line with an increasing velocity at equal time intervals. Velocity is the rate of change of displacement. Acceleration is the rate of change of velocity. Velocity is a vector quantity because it consists of both magnitude and direction. Since acceleration is the rate of change of velocity it is also a vector quantity. Acceleration occurs whenever an object increases or decreases its speed or changes direction.

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The acceleration due to gravity on the asteroid, given that it has a mass of 1.00×10⁴ kg and a radius of 20.0 m is 1.67×10¯⁹ m/s²

Acceleration due to gravity of planets can be obtained by using the following formula:

g = GM / R²

Where

Now, we shall apply the above formula, to determine the acceleration due to gravity on the asteroid. Details below                                                                                  

g = GM / R²

g = (6.67×10¯¹¹ × 1.00×10⁴) / (20)²

g = 6.67×10¯⁷ / 400

g = 1.67×10¯⁹ m/s²

Thus, we can conclude that the acceleration due to gravity on the asteroid is 1.67×10¯⁹ m/s²

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