tai ran from his home to a position 300 m south of his home in 100 seconds what was his velocity

The stiffness is 0.21 N/m and frequency is 2.84 Hz.

The effective spring constant k of the web can be determined as follows:

Stiffness is defined as the resistance to forces that bend a component. Firmness is very important to the end-use performance of many papers.

[tex]F= \frac{1}{2pi} \sqrt{\frac{k}{m} }[/tex]

k= 4 pi²f²m

= 0.21875 N/m

The frequency of the web's oscillations can be determined as follows: The frequency of a repeated event is its number of instances per unit of time. It differs from angular frequency and is sometimes referred to as temporal frequency for clarification. The unit of frequency is hertz (Hz), or one occurrence per second.

[tex]F= \frac{1}{2pi} \sqrt{\frac{0.21}{0.56 g} }[/tex]

= 2.84 Hz

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The statements that are correct and relevant to solving this problem are:

-The information contains the conversion factor 45s/135mm²

-The starting point for the calculation is 7903 mm².

-The problem assumes that the conversion between seconds and hours is known.

Calculation is both a process and a movement. Calculation's ultimate result is also a consequence of calculated action.

The calculator is a machine which thus calculates the average numbers and displays the results on a screen. It has a numerical keypad.

starting point is 7903 mm²

whit will be

A sec, min or her. (Here hour)

hour.

Assumes that the conversion between second and

hour is known.

Conversion factor.4513545-X 7903 = 2634.33 sec135

or 2634.33

0.732 hour

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Complete question:

According to the solving  the value of average speed m =5 and value of n =2.

The average speed is the total distance it travels in a predetermined amount of time. The typical speed is represented by a scalar value. It is characterised by the magnitude and lacks direction.

150 million kilometers separate the planet from the sun.

We are aware that a million

= 10^6 and 1 km= 10^3 m

Hence,

150 million km = 150× 10^6 ×10^3 metre=150×10^9 m

                                                                                 =1.5×10^11 m

The speed of light in a vacuum is 2.999... m/s, which is roughly equivalent to 3.0 108 m/s.

Calculating the time it takes for the light beam to travel from the sun to Earth is demanded of us.

we know that average velocity v = distance/time

                                                      Time ⇒ distance/velocity

Here distance=1.5×10^11 m and v=c= 3.0×10^8 m/s

                           hence time

                                                         =0.5×10^3 s

                                                           =5.0×10^2 s

m10n [where m is the magnitude and n is the power of 10] is the proper way to write a scientific notation.                                                  

Hence the value of m =5 and value of n =2

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(A) When an air particle bombards a smoke particles, the smoke particle moves to the same direction as the air particle that hit it. When another air particle hits the smoke particle, it changes its direction to that of the second air particle, and so on. This is called Brownian motion.

(B) If the temperature of the surroundings is increased the air particles would gain kinetic energy resulting in more frequent collisions with the smoke particles. Therefore, the smoke particles would be seen moving haphazardly.

(C) The microscope helps magnify the smoke particles for a much more better observation. The lens help in focusing. As the air particles are really small and cannot be observed; therefore, smoke particles are used as they are easy to see and observe; thus, ensuring a better experiment.

The percentage at which the transferred electrons change the mass of the penny is [- (n x 9.1 x 10⁻³¹)/m] x 100 .

The deficiency  or excess  of electrons in an atom leads to the development of charge.

The total mass of coin after loosing electrons is calculated as follows;

= m - (n x 9.1 × 10⁻³¹ ) Kg

where;

There will be decrease in the mass of the penny.  So 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.

The percentage decrease in the amount of mass transferring the electrons is calculated as;

[- (n x 9.1 x 10⁻³¹)/m] x 100    

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When the activation energies of the forward and backward processes are equal, the energy of the reactant and product becomes equal.

Therefore, E=EAEB=0. The reaction has reached equilibrium when the forward and reverse reaction rates are equal to one another. When the rate of the forward reaction equals the rate of the reverse reaction, a system is said to be in chemical equilibrium. The activation energy () of the reverse reaction is the SUM of the activation energy of the forward reaction AND the energy released from the forward reaction, according to the information provided.

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The sum of all the kinetic and potential energies of a system's constituent pieces is the total energy of the system.

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8.3 m/s is the terminal velocity of the squirrel can be calculated using the equation for terminal velocity and 10.8 m/s is the velocity of a 50.0 kg person hitting the ground.

What is velocity?
Velocity is a measure of the speed of an object's motion in a particular direction. It is a vector quantity, meaning it has both magnitude and direction. Velocity is usually measured in meters per second (m/s).

The terminal velocity of the squirrel can be calculated using the equation for terminal velocity of an object in a fluid, which is given by Vt = (2×m×g)/(ρ×Cd×A). Here, m is the mass of the object, g is the acceleration due to gravity, ρ is the density of the fluid, Cd is the drag coefficient, and A is the reference area of the object. The drag coefficient for a horizontal skydiver is 0.8, and the density of air is 1.225 kg/m^3. Therefore, the terminal velocity of the squirrel can be calculated as Vt = (2×500×9.8)/(1.225×0.8×895) = 8.3 m/s.

The velocity of a 50.0 kg person hitting the ground can be calculated using the equation for the velocity at the end of a fall, which is given by Vf = sqrt(2×g×h). Here, g is the acceleration due to gravity and h is the height of the fall. Therefore, the velocity of the person hitting the ground can be calculated as Vf = sqrt(2×9.8×5.6) = 10.8 m/s.

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Instantaneous power output of a 3-phase 60 Hz generator will not be constant under following condition when the load is balanced.

Instantaneous power output of a single phase 60 hz generator will be constant under reactive power.

Responsive power is otherwise called: ghost power. One more method for making sense of this is that responsive power is the resultant power in watts of an air conditioner circuit when the ongoing waveform is out of stage with the waveform of the voltage, normally by 90 degrees assuming the heap is simply receptive and is the consequence of either capacitive or inductive burdens. A model is fueling a brilliant light, in a responsive burden energy stream toward the heap a fraction of the time, though in the other half power streams from it, which gives the deception that the heap isn't dispersing or consuming power. Receptive power is one of the three kinds of force present in stacked circuits.

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The height of Cliff is 45 m

It is given that

Velocity with which rock dropped from cliff =

30 m/s

intial velocity = 0 m/s

acceleration due to gravity = 10 m/s^2

We have to find how high was the cliff

v^2 - u^2 = 2as

(30)^2 - 0 = 2 x (-10) x s

900 = -20s

s = 45 m

Hence, height of Cliff is 45 m

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In a vacuum, both the feather and the rock would fall at the same rate due to the absence of air resistance.

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1.496E+11 metres, 1.4960E+13 centimetres, and 1.4960E+8 kilometres are all equivalent to one astronomical unit (au). The average distance between the sun and the earth serves as the basis for this peculiar unit.

The distance between any two places in space is equal to the length of the straight line connecting them, which is also the shortest path. This is the usual conception of distance in classical physics, especially in Newtonian mechanics. The straight-line distance is mathematically known as the Euclidean distance in two- and three-dimensional space. The physical concept of distance is employed in physics to explain how far an object has moved. Distance is a scalar quantity. SI units for distance A metre is the unit of distance according to the International System of Units.

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A unit vector perpendicular to a given vector is a vector of the same length but with a direction that is 90 degrees to the given vector. Geometrically, the collection of all such vectors forms a circle.

What is vector?
Vector is a mathematical object used to represent magnitude and direction. It is composed of a magnitude and a direction that can be represented in Euclidean space by an ordered pair of numbers. A vector can also be represented by a directed line segment to indicate the direction of the vector and its magnitude. Vectors can be used to represent many physical quantities such as velocity, force, acceleration, and electric and magnetic fields. Vectors are also used in calculus to represent derivatives of functions, enabling us to calculate the rate of change of the function.

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(a) The specific volume of air in the cylinder is heated without changing its temperature until its volume doubles is 0.861 m³/kg.

(b) Specific volume of air in the cylinder increases.

(c) The pressure of air in the cylinder decrease.

The amount of cubic metres that one kilogramme of matter takes up is known as the specific volume. It is the reciprocal of density and the ratio of a substance's volume to mass. In other words, specific volume is inversely related to density. Any state of matter may be measured or calculated for specific volume, but calculations involving gases are where it is most frequently applied.

Though it can also be expressed in terms of millilitres per gramme (mL/g) or cubic feet per pound (ft³/lb), the standard unit for specific volume is cubic metres per kilogramme (m³/kg).

(a) Specific volume =

[tex]$ \mathrm{ \hat V = \frac{V}{m} = \frac{RT}{P} }[/tex]

[tex]$ \mathrm{ =\frac{\overline RT}{mP} }[/tex]

[tex]$ \mathrm{ = \frac{8.314 \times 300}{28.97 \times 100} }[/tex]

[tex]$ \mathrm{ \hat V = 0.861 \ m^3/kg }[/tex]

(b) Mass will remain constant so on doubling the volume, specific volume will also be doubled i.e.

[tex]$ \mathrm{ \hat V_2 = 2\hat V_1 }[/tex]

Thus, specific volume increases.

(c) Since, T = constant

[tex]$ \mathrm{ P\hat V_1 = P\hat V_2}[/tex]

[tex]$ \mathrm{ \frac{P_2}{P_1} = \frac{\hat V_1 }{\hat V_2 } }[/tex]

[tex]$ \mathrm{ \frac{P_2}{P_1} = \frac{\hat V_1 }{2\hat V_1 } }[/tex]

[tex]$ \mathrm{ \frac{P_2}{P_1} = \frac{1 }{2 } }[/tex]

[tex]$ \mathrm{ P_2= \frac{1}{2} \times 100}[/tex]

[tex]$ \mathrm{ P_2=50}[/tex]

Thus pressure decrease in this case.

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Complete question:

Value of electric field at x=1m is

electric field E= [tex]\frac{-dV}{dx} =[/tex]  [tex]- \frac{-d(5x^{2} -10x - 9)}{dx}[/tex]

electric field E= -(10x-10)

electric field E= 0

An electric field is a physical phenomenon that surrounds electrically charged particles and exerts force on any other charged particles nearby, either attracting or repelling them. It can also refer to the physical field surrounding a system of charged particles.Electric charges and time-varying electric currents are the building blocks of electric fields. The electromagnetic field, one of the four fundamental interactions (also known as forces) of nature, manifests itself in both electric and magnetic fields.Electrical technology makes use of electric fields, which are significant in many branches of physics. For instance, in atomic physics and chemistry, the electric field acts as an attracting force to hold atoms' atomic nuclei and electrons together.

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False. Removing fault current within seconds or minutes may not be enough to prevent damage to the conductor or equipment.

What is meant by a short circuit?

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Correct options are the gravitational force is inversely to proportional to the distance, and the electrical force is inversely proportional to the square o the distance.

Electrical force is the force that is exerted on charged particles due to the presence of other charged particles. It is a fundamental force of nature, and it is one of the four fundamental forces of physics, along with the strong nuclear force, the weak nuclear force, and the gravitational force. Electrical force is responsible for the behavior of charged particles in electric and magnetic fields, and it is the force that holds atoms and molecules together. The electrical force is mediated by the exchange of virtual photons.

Both gravitational and electric forces, according to Coulomb's law, decrease with the square of the distance between the objects, and both act along a line between them. However, in Coulomb's law, the magnitude and sign of an object's electric force are determined by its electric charge rather than its mass. Charge thus governs how electromagnetism influences the motion of charged objects.

[tex]$ F = k \frac{q_1q_2}{r^2}[/tex]

F = electric force

k = Coulomb constant

q₁, q₂= charges

r = distance of separation

And

[tex]$F=G{\frac{m_1m_2}{r^2}}[/tex]

F = force

G = gravitational constant

m₁ = mass of object 1

m₂ = mass of object 2

r = distance between centers of the masses

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The complete question is given below:

There are two prominent stars in the sky that are spatially separated by about two meters.

Which constellation has two of the brightest stars in the universe?

Second brightest and the brightest star in the night sky is Sirius, which is in the constellation Canis Major. With an apparent magnitude of -1.46, Sirius, the second brightest star, can be seen from anywhere. The Canis Major constellation contains the bright star in question. It is the Alpha star of this constellation.

Which of the two shining stars is it in the sky?

The Sun is the brightest star that can be seen from Earth and has a magnitude of 26.74. Sirius comes in second with a magnitude of 1.46 mag.

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Answer:

B. Vector c

Explanation:

You have to look for these two points (4,0) and (1,-3) on your graph (x, y) , and then you have to find which vector connects them together and that must be vector c

When joists do not completely span the distance from one wall to the other, you must offset the markings on the second wall by 1 1/2 inches. This is known as a "joist hanger offset."

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1) The ratio of density of A to density of B is 3/2.
2) The ratio of volume of A to the volume of B is 1/3.

How closely a material is packed together is determined by its density. As the mass per unit volume, it is referred to. D or is the symbol for density. Formula for Density = m/V, where is the density, m is the object's mass, and V is its volume.

Given:

Weight of A block = 12 N

Apparent weight of A block = 8 N

Weight of B block = 20 N

Apparent weight of B block  = 12 N

Given is a relationship between apparent weight and original weight.

W' = W -B --- (1)

B = W dis liq - ρ liq V obj ---(2)

For block-A :

From equations (1) and (2),

W' = W  - ρt V

Substitute the given values,

8 = 12 - ρt V

ρt V = 4 ---(3)

For block-B :

From equations (1) and (2),

W' = W  - ρt V

12 = 24 - ρt V

ρt V = 12 ---(4)

From equations (3) and (4)

ρt VA/ρt VB = 4/12

ρt VA/ρt VB = 1/3

As a result, the ratio of volume of A to the volume of B is 1/3.

From given weights of A block  and B block,

[tex]W_A}[/tex]/[tex]W_{B}[/tex] = 12/24 ---(5)

weight of an object in terms of volume and density can be written as,

W = ρ Vg

So, equation (5) written as,

ρA [tex]V_{A}[/tex]g/ρB [tex]V_{B}[/tex]g = 12/24

ρA/ρB × [tex]V_{A}[/tex]/[tex]V_{B}[/tex] = 1/2

Substitute  [tex]V_{A}[/tex]/[tex]V_{B}[/tex] = 1/3

ρA/ρB ×1/3 = 1/2

ρA/ρB = 3/2

So, the ratio of density of A to density of B is 3/2.

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Scientists were surprised to discover that just like Saturn, all of the Jovian planets had rings.

Jovian planets include Jupiter, Saturn, Uranus, and Neptune and these planets have larger sizes and masses. Jovian planets do not have solid surfaces and they are sometimes called gas giants because they are large and made mostly of gases.

Jovian planets had rings but they were not as large or as well-known as Saturn's rings, but they were still present and visible under certain conditions. Unlike the terrestrial planets that make up our inner solar system,  Jovian planets do not have solid surfaces.

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Alpha Centauri (4.4 ly from the Solar system) in 70 years. The speed should be around 6.8×107 kph.

What is meant by speed ?

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Increasing the separation distance between objects decreases the force of attraction or repulsion between the objects.

What  is linearly decreasing force?

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Heat emitted from a candle, Microwaves from a microwave oven, Radio waves transmitted between towers, Sound waves from a car radio.

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A correct equation for the quantities represented in this scenario is

tan Θ=[tex]\frac{d_{n} }{d_{e} }[/tex].

Now, according to the question,

tanΘ=[tex]\frac{opp.\: side}{adj.\: side}[/tex]

Now, by the figure mention,

The side opposite to the angle Θ is [tex]d_{n}[/tex] and the adjacent sides is [tex]d_{e}[/tex].

The three primary trigonometric functions—Sine, Cosine, and Tangent—are based on a right-angled triangle.

Triangle with the opposite side, adjacent side, and hypotenuse can be declared by:

The terms "opposite" and "adjacent" refer to the angle's opposing and adjacent, respectively.

The long one is "Hypotenuse."

Now, put these values in the formula,

which gives the equation,

tanΘ=[tex]\frac{d_{n} }{d_{e} }[/tex]

Now, from the options given it is clearly seen that option-1 is correct.

Question: in the town of centralburg (figure 1), which is laid out in a uniform block grid, the grocery store is three blocks east and four blocks north of the post office. which of the following is a correct equation for the quantities represented in this scenario

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Dialogic communication is the open sharing of ideas in an atmosphere of respect (in order to achieve understanding between the speaker and listener(s).

Dialogic communication is a method of communication that promotes dialogue between a speaker and their audience. In presenting their ideas to an audience, dialogic communication encourages speakers to be assertive (calm, respectful, and open). The dialogic theory is founded on three guiding principles: Monologue is less natural than dialogue. Meaning is found in people, not words. Perceived meanings are influenced by contexts and social situations (Bakhtin, 2001a; Bakhtin, 2001b). Mutuality, propinquity, empathy, risk, and commitment are the five principles underlying dialogic theory (Kent & Taylor, 2002). Mutuality is defined by an orientation toward inclusion or collaboration, as well as a spirit of mutual equality. Mutuality has two characteristics: collaboration and a spirit of mutual equality.

Here,

Dialogic communication is the open exchange of ideas in a respectful environment (to achieve understanding between the speaker and listener) (s).

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Now the force equation at point A is given as f (n)= 0.05N

h < (1/2)R.This means that the ball must start at a height that is at least half a radius above the top of the loop, or 2.5 radii above the ground, in order to travel around the entire circle.

v = 12.45m/s

Part B)

F(n) = 0.05N

As we know that the point A lies on the top of the loop

so we will have by energy conservation

so the speed at point A is given as

mg (H-2R) = 1/2 mv ²

v = √2 g (H-2R)

V= 12.45 m/s

Now the force equation at point A is given as

F (n)= 0.05N

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A bar rotates horizontally about its center, reaching a maximum angular velocity in 6 complete rotations from rest and has a constant angular acceleration of 0.110 radians.

What is angular acceleration?

The angular acceleration is the rate at which the angular velocity of an object is changing.

Therefore, since the angular acceleration of the bar is constant, this means that the angular velocity of the bar is increasing at a constant rate.

To find the angular velocity at any given time, we can use the equation: angular velocity = angular acceleration x time.

To find the final angular velocity, we can use the equation: final angular velocity = initial angular velocity + angular acceleration x time.

Therefore, the final angular velocity of the bar after 6 complete rotations is: 0 + 0.110 radians/s x (6 x 2π) = 6.832 radians/s.

To find the angle that the bar has rotated through, we can use the equation: angle = angular velocity x time

Therefore, the angle that the bar has rotated through after 6 complete rotations is: 6.832 radians/s x (6 x 2π) = 42.5 radians.

It's worth noting that angular velocity is a vector quantity, it's magnitude is given in radians/s and its direction is given by the right hand rule.

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Complete question is:

A bar rotates horizontally about its center, reaching a maximum angular velocity in 6 complete rotations from rest and has a constant angular acceleration of 0.110 radians. The movement of the interia of the bar about the raxis of the rotation is about 0.0216kgm^.

a. Show the final angular velocity of the bar is 3 radians.

b. Draw the variation with time t of the angular displacement 0 of the bar during the acceleration .

c. Calculate the torque acting on the bar while it is accelerating.

d. The torque is removed. The bar comes to rest in 30 complete rotations with constant angular deceleration. Determine the time taken for the bar to come to rest.

The relationship between speed, distance, and time is described using the formula speed distance time. An object traveling 10 miles in 5 minutes averages 120 miles per hour.

10 miles were covered in total.

It took five minutes in total.

The formula can be used to determine the speed.

s = d/t

s being the speed

D stands for distance.

The amount of time used

Let's change the known variables in the equation above to get

s = 10/5

= 2 miles/minute

However, we must convert the speed to miles per hour in order to use it.

s=2 x 60 miles per hour

120 miles per hour.

An object traveling 10 miles in 5 minutes averages 120 miles per hour.

Consequently, the typical speed is 120 miles per hour.

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