Exercise 12) The effective velocity Vms of the oxygen molecule in a tank is 625m/s. Calculate the temperature of that gas? Molecular oxygen M = 32g/mol, R = 8,31] / molk​

A greyhound's time in a 100 m dash would be around 4.5 seconds, as it takes approximately 0.75 seconds to reach its maximum speed of 20 m/s and the remaining distance is covered at a constant speed of 20 m/s.

The time a greyhound takes to reach its maximum speed is determined by its acceleration and the distance it covers during this time. This acceleration phase takes approximately 0.75 seconds, as the dog covers 30 m over this distance. The time to cover the remaining 70 m at a constant speed of 20 m/s is 3.5 seconds, making the total time to cover the 100 m dash around 4.5 seconds.

The calculation for a greyhound's time in a 100 m dash can be represented as follows:

t = t_acceleration + t_constant_speed

t = (d_acceleration / v_initial + v_final) / a + d_constant_speed / v_final

where:

t = time to cover the 100 m dash

t_acceleration = time to reach maximum speed of 20 m/s over a distance of 30 m

t_constant_speed = time to cover the remaining distance of 70 m at a constant speed of 20 m/s

d_acceleration = distance covered during acceleration phase

v_initial = initial speed (assumed to be 0 m/s)

v_final = final speed (20 m/s)

a = acceleration (not specified, so not used in the calculation)

d_constant_speed = remaining distance (70 m)

t = (30 m / 0 + 20 m/s) / a + 70 m / 20 m/s

t = (0.75 s) + (3.5 s)

t = 4.25 s

Therefore the time it takes to cover a 100 m dash is 4.5 seconds.

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Your question seems missing, but I suppose the question was:

"In a typical greyhound race, a dog accelerates to a speed of 20 m/s over a distance of 30 m. It then maintains this speed. What would be a greyhound’s time in the 100 m dash?"

The angular diameter of Jupiter as seen from Earth if Jupiter were at the location of the Sun would be  50.1 arc minutes.

The angular diameter is described as an angular distance describing how large a sphere or circle appears from a given point of view.

The formula for angular diameter is given by:

θ = 2 * arctan(d / (2 * D))

substituting  the values, we have :

θ = 2 * arctan(1.43 ✕ 105 / (2 * 1.5 ✕ 108)) = 2 * arctan(0.00000953333)

The result is in radians, so we to convert it to arc minutes:

θ (in arc minutes) = θ (in radians) * (60 minutes/degree) * (1 degree/radian) = (2 * arctan(0.00000953333)) * (60) * (180/π) = 50.1 arc minutes.

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Acceleration may now be increased without running the risk of dominating the track because the dragster has grown in speed and the large rear wing's downforce is now pressing the car down onto the track surface.

the definition of speed. a direction or speed at which an object's location changes. The distance traveled relative to the time it took to travel that distance is how fast something is moving. Due to its lack of magnitude and merely having a direction, speed is indeed a scalar number.

Newton's first law states that a body will continue to move until it is acted on by an external power if it is at rest or moving in a specific direction at a fairly constant pace.

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When two wave superposed in same phase,  constructive interference is formed.

According to the definition of interference, it is the phenomenon in which two or more waves combine to create a new wave that has a bigger, smaller, or the same amplitude.

The resulting sound wave is created by adding the amplitudes of two sound waves that are travelling in the same direction and in phase with one another. In this instance, it is claimed that the sound waves experienced constructive interference. The waves experience upward displacement when they encounter constructive interference.

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(a) The coefficient of linear expansion for copper is about 0.000016 per Kelvin. This means that for every increase in temperature of 1 K, the length of a material will increase by 0.000016 times its original length. For an 8 cm square hole, the original area is 8 cm * 8 cm = 64 cm^2.

The change in the area of the hole will be 64.0512 cm^2 - 64 cm^2 = 0.0512 cm^2.

(b) The change in the area represents an increase in the area enclosed by the hole.

Temperature is a physical property of matter that measures the degree of hotness or coldness of an object or substance. It is expressed in units such as Celsius, Fahrenheit, or Kelvin. The temperature of an object or substance is related to the average kinetic energy of its molecules or atoms. The higher the temperature, the faster the molecules or atoms move, and the more energy they possess.

Temperature can be measured using various devices, such as thermometers, thermocouples, and infrared thermometers. It is also possible to determine the temperature of an object or substance indirectly, by measuring its heat capacity, specific heat, or thermal conductivity. Understanding the concept of temperature and its role in various processes is essential for many fields, including physics, biology, chemistry, engineering, and environmental science.

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The Embryonic similarities have been a strong lead in the study of evolution.

Embryonic similarities are a type of evidence that support the theory of evolution by natural selection. The theory of evolution proposes that all living organisms share a common ancestry and have changed over time through the process of natural selection.

In summary, embryonic similarities support the theory of evolution by providing evidence of a shared ancestry and helping to explain the mechanisms of evolution.

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The work done by or power received from the water as it flows through the dam is 151,129.76 h (W).

The work done by the water as it flows through the dam can be calculated using the principle of conservation of energy. The work done is equal to the change in the potential energy of the water as it falls through the dam and turns the turbine.

The formula for the work done by the water is given by:

= W

= ρ x g x h x Q

here W is work done (in J), ρ is density of water (in kg/m^3), g is acceleration due to gravity (in m/s^2), h is height difference between the inlet and outlet of the turbine (in m), and Q is volume flow rate (in m^3/s).

To convert the volume flow rate from gpm to m^3/s, we can use the conversion factor:

= 1 gpm

= 0.00378541 m^3/s

So, the volume flow rate in m^3/s is:

= 5000 gpm x 0.00378541 m^3/s/gpm

= 18.927 m^3/s

To convert the exit pipe diameter from ft to m, we can use the conversion factor: 1 ft = 0.3048 m

So, the exit pipe diameter in m is: 4 ft * 0.3048 m/ft = 1.2192 m

Using these values, we can calculate the work done by the water as follows:

W = ρ x g x h x Q

W = 1000 kg/m^3 x 9.8 m/s^2 x h x 18.927 m^3/s

W = 18,927 x 9.8 x h (kg x m/s^2)

W = 186,100 h (J)

The height difference (h) cannot be determined from the information given, so the work done by the water cannot be calculated exactly. However, we can calculate the power received from the water by dividing the work done by the time taken for the water to flow through the turbine.

= P

= W / t

where P is the power (in W), and t is the time (in s). The time can be calculated as follows:

= t

= Q / v

where v is the velocity of the water at the exit of the turbine (in m/s). The velocity can be calculated using the formula:

= v

= Q / A

here A is the cross-sectional area of the exit pipe (in m^2).

A = π x (d/2)^2

here d is diameter of the exit pipe (in m).

So, the velocity of the water is:

v = Q / A

v = 18.927 m^3/s / π x (1.2192/2)^2 m^2

v = 15.39 m/s

And the time taken for the water to flow through the turbine is:

t = Q / v

t = 18.927 m^3/s / 15.39 m/s

t = 1.23 s

Finally, the power received from the water is:

= P

= W / t

P = 186,100 h (J) / 1.23 s

P = 151,129.76 h (W)

This is the theoretical power received from the water as it flows through the dam. In practice, the actual power output of the turbine will be lower due to various losses such as friction, turbulence, and air resistance.

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There are protons, neutrons, and electrons, three types of subatomic particles. Protons have both a positive charge and a negative charge, making them two of the neutrinos with electrical charges.

These particles are frequently referred to as elementary particles since they are the building blocks of atoms. There are protons, neutrons, and electrons, three types of subatomic particles. Protons and electrons, two of something like the subatomic particles, each have  electrical charge of one or the other.

Particles smaller than an atom are referred to as subatomic particles. The three primary subatomic particles present in an atom are protons, neutrons, and electrons. The charge of protons is positive (+). An easy method.

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The distance between the electron and the positive charge affects the electric field there.

Only the charge that creates the electric field and its distance from it affect the electric field's value: the distance between the positive charge and the electron, as well as the positive charge itself.

The force on a positive charge would be pointed in the direction of the electric field. Because of its negative charge, an electron will move against the electric field. It will therefore migrate to the left.

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Answer:

A.

Explanation:

According to newton's first law, we are in motion because a force overcame my inertia. Newton's first law states that a body will continue to stay at rest or move under uniform velocity unless acted upon by an external force.

Radio and the internet are two instances of nonrival resource. They can be accessed by many individuals simultaneously without compromising their quality or increasing the chance that the supply would run out.

Radio stations and the internet are two instances of nonrival goods. They are available to many individuals at once, and they can been consumed repeatedly without lowering their quality or increasing the chance that the energy will run out.

In a market economy, market forces govern the resources that are distributed and the costs of goods and services. mainly demand and supply. Since there is little government interference in market economies, all management choices are made by private ownership.

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Given data  according to circuit is , Is=90mA, R1= 28 K, R2= 50 K, L=79mH.

complete step by step solution is given below in the image.

Individual electronic components such as resistors, transistors, capacitors, inductors, and diodes are connected by conductive wires or traces through which electric current can flow to form an electronic circuit. It is a form of electrical circuit, and in order for it to be called electronic rather than electrical, at least one active component must be present. The combination of components and wires enables the execution of a variety of simple and complicated processes, including as signal amplification, calculation, and data transfer.

Using Kirchhoff's voltage law (KVL) in the clockwise direction starting from the node to the left of R1, we have:

IsR1 - I_LL - I_L*R2 = 0

where I_L is the current through the inductor at time t=0.

Simplifying and solving for I_L, we get:

I_L = Is * R1 / (R1 + R2)

Substituting the given values, we get:

I_L = (90.0 mA) * (28.0 kΩ) / (28.0 kΩ + 50.0 kΩ)

I_L = 35.4 mA

Therefore, the initial current through the inductor is 35.4 milliamperes.

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The change in position can be calculated as the difference in the outputs of the velocity function for the two values of t: Δx = v(10) - v(5)

Velocity and speed are related but distinct concepts in physics. Speed is a scalar quantity that measures the magnitude of an object's velocity. Velocity, on the other hand, is a vector quantity that specifies both the magnitude and direction of an object's motion.

Yes, velocity is a vector quantity. Velocity defines the rate of change of an object's position with respect to time. It specifies both the magnitude and direction of an object's motion. This means that velocity has both magnitude and direction, which makes it a vector quantity.

Δt = 10 - 5 = 5 minutes

So the average velocity over the time interval can be calculated as:

v(avg) = Δx / Δt = (v(10) - v(5)) / (10 - 5)

v(avg) = (4.0 - 2.2) / 5 = 1.8 / 5 = 0.36 miles per hour

So Di's average velocity from t = 5 minutes to t = 10 minutes was 0.36 miles per hour.

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An Independent Set S of graph G = (V, E) is a set of vertices such that no two vertices in S are adjacent to each other. It consists of non-adjacent vertices.

A vertex is a location in geometry where two or more curves, lines, or edges converge.

As a result of this definition, vertices are the intersection of two lines that create an angle as well as the corners of polygons and polyhedra.

Hence, in order to find when a set of vertices in a graph is independent, this means that no two vertices in S are adjacent to each other. It consists of non-adjacent vertices.

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The law of conservation of angular momentum can be used to determine the final angular velocity of the disc with radius r1, f. The two discs must have equal initial and final angular momenta.

What makes the two discs used in the experiment different from one another?

Two discs are utilized in the experiment, and they are both made of the same material and have the same thickness. One disc has a radius of r, while the other has a radius of 2r. This is how the two discs differ from one another.

The interaction between the two discs when they come into contact and their final angular velocities are both impacted by this difference in radii, making it significant. The radii's difference

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The voltage drop can be seen from the full circuit diagram.

A voltage drop in a circuit refers to the decrease in voltage (electrical potential difference) along a conductor as electric current flows through it. It is caused by the resistance of the conductor, which resists the flow of electric current, thus converting some of the electrical energy into heat.

Voltage drop is an important consideration in electrical circuit design, particularly in long or complex circuits, because it affects the amount of voltage available to power electrical devices. If the voltage drop is too large, the devices may not operate correctly, or they may be damaged.

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1. Earth is positioned at one focus of the Moon's orbit.

2. according to kepler's second regulation, jupiter may be journeying most slowly around the sun's aphelion

3. Earth orbits inside the form of a/an ellipse across the solar.

4. The mathematical shape of Kepler's 1/3 regulation measures the duration in years and the semimajor axis in astronomical gadgets (AU).

An ellipse is a type of conic section, a curve that results from the intersection of a cone and a plane. It is defined as a set of points such that the sum of the distances from two fixed points (called foci) to any point on the curve is constant. An ellipse has two axes: the major axis, which is the longest and the minor axis, which is the shortest. The foci lie on the major axis and the length of the major axis is twice the distance between the foci.

The shape of the ellipse is determined by the ratio of the lengths of the two axes, called the eccentricity. When the two axes are equal, the ellipse is a circle. Ellipses appear in many natural and man-made objects, including planetary orbits and the shapes of car headlights, bottle bottoms and egg yolks. They are also used in engineering and science to model real-world phenomena, such as the distribution of charges in a capacitor and the deformation of a metal rod under tension.

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Complete Question: -

earth is located at one of the moon's orbit.target 1 of 6 2. according to kepler's second law, jupiter will be traveling most slowly around the sun when at .target 2 of 6 3. earth orbits in the shape of a/an blankaround the sun.target 3 of 6 4. the mathematical form of kepler's third law measures the period in years and the blankin astronomical units (au).target 4 of 6 5. according to kepler's second law, pluto will be traveling fastest around the sun when at blank.target 5 of 6 6. the extent to which mars' orbit differs from a perfect circle is called its

a. The muzzle velocity of the ball is 6.86 m/s.

b. The maximum height of the ball is 2.40 m.

The complete question is in the attachment. Look at the picture. The ball will move in two parts

According to Hooke's law F = k Δx

F = k Δx

F = 667 ×0.23

F = 153.41 N

According to Newton's second law F = ma

a = F ÷ m = 153.41 ÷ 1.50

a = 102.27 m/s²

According to non-uniform motion

v₂ = v₁ + at

v₂² = v₁² + 2ad

d = v₁ × t + 0.5 at²

From P to Q

From Q to R

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Correct options are Option A and D, In series connections, the flow of electrons follow the same path as the current remains constant in all the elements of the circuits. And the total resistance of the circuit increases as more resistors are added to the circuit in serial manner.

There are both active and passive components in a circuit. The flow of current and potential drop across the passive devices will also be determined based on the connections between them.

Similar to how the voltage drop will remain the same even if the passive devices are connected in parallel, the current flow through each device will vary. Similar to this, if the passive devices are wired in series, the potential drop will change but the current flow will remain constant.

Due to the constant current flowing through all of the circuit's components in series connections, electrons follow the same route. And as more resistors are added to the circuit, its overall resistance rises.

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Complete question -

Which of the following statements accurately describes a series circuit? Select all that apply.

The flow of electrons follow the same path.

The flow of electrons split and follow different paths.

Different amounts of charge will be dropped across each resistor in the circuit.

The total resistance of the circuit increases as more resistors are added to the circuit.

The total resistance of the circuit decreases as more resistors are added to the circuit.

The maximum possible value of [tex]$\left|\dfrac{a-b}{1-\overline{a}b}\right|$[/tex] is 2.

The maximum possible value of [tex]$\left|\dfrac{a-b}{1-\overline{a}b}\right|$[/tex] is 2.

To see why, consider two complex numbers a and b on the unit circle with a [tex]\neq[/tex] b.

Then, we can write:

[tex]$$|a - b| = 2 \sin \left(\frac{1}{2} \angle (b - a)\right)$$[/tex] and [tex]$$|1 - \overline{a} b| = 2 \sin \left(\frac{1}{2} \angle (1 - \overline{a}b)\right)$$[/tex]

where angle (z) denotes the argument of the complex number z.

Since a and b are on the unit circle,

[tex]\left|\overline{a}\right| = \left|a\right| = 1$\\$\left|\overline{b}\right| = \left|b\right| = 1[/tex]

Hence, using above we can write it as:

[tex]$$\angle (1 - \overline{a}b)\\ = \angle (1 - b\overline{a}) \\= \angle (1) - \angle (b\overline{a}) \\= 0 - \angle (b) + \angle (a) \\= -\angle (b) + \angle (a)$$[/tex]

Thus,

[tex]$$2 \sin \left(\frac{1}{2} \angle (1 - \overline{a}b)\right) \\= 2 \sin \left(\frac{1}{2} (-\angle (b) + \ang\\le (a))\right) \\= 2 \sin \left(\frac{1}{2} (\angle (a) - \angle (b))\right)$$[/tex]

So from above,

we can write it as:

[tex]$$\left|\dfrac{a-b}{1-\overline{a}b}\right| = \frac{|a - b|}{|1 - \overline{a} b|} = \frac{2 \sin \left(\frac{1}{2} \angle (b - a)\right)}{2 \sin \left(\frac{1}{2} (\angle (a) - \angle (b))\right)}$$[/tex]

Since the sine function is always between -1 and 1,

So, we can again write it as:

[tex]$$\left|\dfrac{a-b}{1-\overline{a}b}\right| \leq \frac{1}{1} = 1$$[/tex]

However, we can see that this maximum value is achieved when a and b are diametrically opposed on the unit circle,

so

[tex]$$\left|\dfrac{a-b}{1-\overline{a}b}\right| = \frac{2}{2} = 2$$[/tex]

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The displacement of the object from 0 to 6.0 seconds is 80m.

option C.

The displacement of the object from 0 to 6.0 seconds is calculated by finding the area of the shape formed between 0 and 6 seconds.

displacement = area of trapezium

Area of trapezium ( 0 to 6 seconds ) = ¹/₂ ( a + b ) h

where;

Area of the trapezium = ¹/₂ ( 6s + 2s ) 20 m/s = 80 m

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Answer:the focal length of the convex lens in water is 33.33 cm.

Explanation:The formula for the change in focal length of a lens when it is immersed in a medium with a different refractive index is given by:

f' = f * (n2 / n1), where f is the focal length in air, n1 is the refractive index of air, and n2 is the refractive index of the new medium.

Given that n1 = 1 (refractive index of air) and n2 = 4/3 (refractive index of water),

f' = 25 * (4/3 / 1) = 25 * (4/3) = 33.33 cm

So, the focal length of the convex lens in water is 33.33 cm.

The car that comes to a complete stop has:

a) A constant acceleration in ft/sec of: -27.06 ft/sec²

b) A stopping distance, (in ft) from an initial speed of 70 mi/hr of: 194.50 ft

It is a physical quantity that indicates the variation of velocity as a function of time, it is expressed in units of distance per time squared e.g.: m/sec2 ; km/h2

The formulas for uniformly varied rectilinear motion (UVRM) and procedures we will use to solve this exercise are:

Where:

Information about the problem:

By Converting the velocities from (mi/hr) to (ft/sec) we have:

vi1= 55 mi/hr /* 5280 ft/ 1 mi * 1 hr/3600 sec

vi1= 80.6 ft/sec

vi2= 70 mi/hr /* 5280 ft/ 1 mi * 1 hr/3600 sec

vi1= 102.6 ft/sec

Applying the acceleration formula we get:

a = ((vf²- vi²) /2* x

a = [(0 ft/sec) ²- (80.6 ft/sec )² /2* 120 ft

a = [0 ft²/sec²- 6496.36 ft²/sec² /240 ft

a = -27.06 ft/sec²

Acceleration is negative because the car is decelerating

Applying the distance formula, we get:

x = (vf²-vi²)/ (2a)

x2 = [(0 ft/sec)²- (102.6 ft/sec)²]/ (2 * -27.06 ft/sec²)

x = (0 ft²/sec²- 10526.76 ft²/sec²)/ -54.12 ft/sec²

x = 194.50 ft

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The velocity of the bowling with a mass of 18 kg and momentum of 6.8 kg m/s would be 0.378 m/s

Newton's law of motion states that all moving bodies will remain in the state of rest or motion until they are disrupted by some external force. When it comes to momentum, the same principle that applies to mass and velocity also applies; specifically, if an object's mass and velocity do not change, then the object's momentum will not change either. To calculate momentum, we can use this following formula:

                                              P = m v

Where:

P = momentum of the object

m = mass of the object

v = velocity of the object

Thus, the velocity of the bowling ball is

P = m v

6.8 kg m/s = 18 kg . v

v = (6.8 kg m/s) ÷ (18 kg)

v = 0.378 m/s

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A straight upward thrown ball takes 10 seconds to complete its up-and-down circular journey. Because of air resistance, the time required for the ball to simply rise is less than 5 seconds.

Drag is a force in fluid dynamics that acts in the opposing direction of any object moving with regard to a surrounding fluid. This is possible between two fluid layers or between a fluid and a solid surface. Air resistance is a force created by air. When an item moves through the air, the force operates in the opposite direction. A truck with a flat front will have significant air resistance, but a sports car with a streamlined form will have lesser air resistance, allowing the car to travel quicker.

Here,

A ball thrown straight upward takes 10 seconds for its up-and-down round trip. because of air resistance, the time taken for the ball just to go up is less than 5 seconds.

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A hurricane is a warm-core tropical cyclone fueled by latent heat release from the condensation of moist air, while a mid-latitude cyclone is a cold-core low-pressure weather system caused by the convergence of warm and cold air masses leading to the ascent of air and precipitation.

The following characteristics are applied to only a hurricane (H), to only a mid-latitude cyclone (MLC), or could apply to both a hurricane and a mid-latitude cyclone (BOTH), in the Northern Hemisphere:

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Your question seems to be missing, but I suppose the question was:

"For each of the following characteristics, choose whether it applies to only a hurricane (H), to only a mid-latitude cyclone (MLC), or could apply to both a hurricane and a mid-latitude cyclone (BOTH), in the Northern Hemisphere.

can generate heavy surf:

Strongest winds near the surface:

weakens with height:

energy source is horizontal temperature differences:

cold-core low:

air in the centre is rising:"

Option 2 is correct, The force with which the person is pushing is F. The equal but opposite force is exerted by the wall on the book, which is -F.

The weight of the book "Mg" is acting downwards, and as the book did not move the equal and opposite amount of frictional force is acting upwards F(f).Any action that tends to sustain, change, or distort a body's motion is said to be using force. The three laws of motion outlined in Isaac Newton's Principial Mathematical are frequently used to illustrate the idea of force. Newton's first law states that until a force is applied to a body, it will remain in either its resting or uniformly moving state in a straight path. According to the second law, when an external force acts on a body, the body accelerates in the force's direction.

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(a) Velocity v at the center of each tire = 37 m/s

(b) Velocity v at the top of each tire = 37 + (31 cm/s) = 37.31 m/s

(c) Velocity v at the bottom of each tire = 37 - (31 cm/s) = 36.69 m/s

(d) Magnitude a of the acceleration at the center of each tire = 0 m/s² (the car is moving at a constant speed)

(e) Magnitude a of the acceleration at the top of each tire = (1/2) * (31 cm/s²) = 15.5 cm/s²

(f) Magnitude a of the acceleration at the bottom of each tire = -(1/2) * (31 cm/s²) = -15.5 cm/s²

(g) Velocity v at the center of each tire = 85 km/h = 23.61 m/s

(h) Velocity v at the top of each tire = 23.61 + (31 cm/s) = 23.9461 m/s

(i) Velocity v at the bottom of each tire = 23.61 - (31 cm/s) = 23.2839 m/s

(j) Magnitude a of the acceleration at the center of each tire = 0 m/s² (the car is moving at a constant speed)

(k) Magnitude a of the acceleration at the top of each tire = (1/2) * (31 cm/s²) = 15.5 cm/s²

(l) Magnitude a of the acceleration at the bottom of each tire = -(1/2) * (31 cm/s²) = -15.5 cm/s²

The velocity of the center of each tire relative to a woman riding in the car is equal to the velocity of the car, which is 85 km/h, or 37 m/s. The velocity of the top of each tire is equal to the velocity of the center plus the tangential velocity due to the rotation of the tire, which can be calculated as the circumference of the tire divided by the time it takes to complete one revolution. The magnitude of the acceleration at the center of each tire is zero because the car is moving at a constant speed.

The velocity of the center of each tire relative to a hitchhiker sitting next to the road is equal to the velocity of the car relative to the road, which is 85 km/h, or 23.61 m/s. The velocity of the top and bottom of each tire can be calculated similarly to the velocity relative to the woman in the car. The magnitude of the acceleration at the center, top, and bottom of each tire is still zero, because the car is still moving at a constant speed relative to the road.

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A resorting force, it pushes the electron towards the direction of the equilibrium point z=0.

Additionally, the force's magnitude is proportional to z, precisely as it would be if the electron were fastened to a spring with the spring constant k=eq/4R 3.

When the positive and negative charges are out of balance, static electricity is produced. While electrons like to hop all over the place, protons and neutrons don't move around very much. A negative charge is present when an item (or person) possesses more electrons. ​

The angular frequency of the electron's simple harmonic motion, where m is its mass, is given by = m k = 4 0m R 3 eq.

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