A sprinter runs from the 6-meter line to the 38-meter line in 8.0 seconds. How far did she travel?

The work done in order to bring the two positive charges at a distance D apart from each other is given by kQ2/R

There are two positive charges of magnitude Q1 and Q2 and both are at rest and they are very far apart.

Now some work has to be done against the external forces in order to bring the two charges at a distance D apart from infinity.

Basically what is said here is that have to calculate the electrostatic potential of the system.

Electrostatic potential is the amount of work that has to be done in order to bring two charges that are infinitely apart two distance D towards each other which is given by the formula,

V = KQ2/R

Here, we have taken Q2 as the reference and we will be moving Q1 towards the charge Q2 and R is the distance by which the particles have been moved.

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This drummer produced an album that some people believe to be the true debut of jazz fusion. Archie Blakey

The correct answer is A

Two light nuclei combine to form one heavy nucleus during a fusion process. Because the mass of the single nucleus formed is less than the combined mass of the two initial nuclei, energy is released throughout the process. Energy is created from remaining mass.

Energy in abundance Controlled nuclear fission reactions and chemical reactions like burning coal, oil, or gas both provide energy, while controlled atomic fusion produces approximately four million times as much energy (at equal mass).

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The focal length of lighted candle is placed 41.0 cm in front of a diverging lens and on to a converging lens of focal length 12.0 cm that is 5.0 cm from the diverging lens is -20.0 cm.

To find the focal length of the diverging lens, we can use the lens equation and the given information. The lens equation is:

1/f = 1/u + 1/v

Where f is the focal length, u is the object distance, and v is the image distance.

For the converging lens, the object distance (u) is the distance from the diverging lens to the converging lens plus the image distance from the diverging lens, and the final image distance (v) is 45.0 cm. The focal length (f) is 12.0 cm. We can write the equation for the converging lens as:

1/12 = 1/(5 + x) + 1/45

Solving for x, we get x = 14.0 cm as the image distance from the diverging lens.

Now, let's use the lens equation for the diverging lens. Since the object distance is 41.0 cm and the image distance is -14.0 cm (negative because it's a virtual image), we can write the equation as:

1/f = 1/(-14) + 1/41

Solving for the focal length (f) of the diverging lens, we get:

f = -20.0 cm

So, the focal length of the diverging lens is -20.0 cm.

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Based on a Hubble Constant of 70, the universe is thought to be 13.7 billion years old. The Hubble Constant of 82.4 determined by Jee's team places the universe's age at roughly 11.4 billion years.

Everything exists in the cosmos. It encompasses all of space as well as the matter and energy that it holds. Even time is a part of it, and you are obviously a part of it. Along with the other planets and their numerous moons, Earth and the Moon are all components of the cosmos.

Hence, estimated age of the universe is 13.7 billion years old

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The force exerted on the black card by the radiation is 5.06×\(10^{-8}\) N.

The force exerted on an object by the electromagnetic radiation is:

Force = \frac{(Intensity)(Area)}{c}

where:

Intensity is the intensity of the radiation (\(190 W/m^2\)),

The area is the area of the black card

= (20 cm)(40 cm)= (0.2 m)(0.4 m)= 0.08 m², and

c is the speed of light (approximately 3× \(10^8 m/s\)).

We know that 1 watt = 1 newton meter/second.

So, 190 watt = 190 newton meter/second.

Substituting the given values into the equation we get:

Force = \(\frac{(190 Wm^{-2} )(0.08 m^2)}{(3)(10^8 m/s)}\) = 5.06×\(10^{-8}\) N

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Centripetal refers to “center-seeking” Quantifies the change in directionof the velocity The acceleration is directed toward the center of the circle of motion.

The magnitude of the centripetal acceleration is given by V^2/r, the direction is toward the center of the circle. The tangential component of the acceleration is due to changing speed. The centripetal component of the acceleration is due to changing direction.

When an object is rotating at a constant angular velocity, the whole object has a constant angular velocity. Therefore, every mint on the turntable has the same, constant angular velocity.

The acceleration which causes the tangential velocity to change direction is called Centripetal acceleration. Centripetal acceleration is always in toward the center of the circle.

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The angular displacement of the tires in revolutions is approximately 216,867.47 revolutions.

First, let's convert the diameter of the tires from centimeters to meters:

d = 66 cm = 0.66 m

Next, let's convert the speed from km/h to m/s:

v = 300 km/h = (300/3.6) m/s = 83.33 m/s

The circumference of the tire is:

C = πd = π(0.66 m) = 2.075 m

The distance traveled by the car in 1.5 hours is:

d = vt = (83.33 m/s)(1.5 hours)(3600 s/hour) = 450,000 m

The number of revolutions of the tire is equal to the distance traveled divided by the circumference of the tire:

n = d/C = 450,000 m / 2.075 m = 216,867.47

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The  quantum of work done to move a 1 kg mass from the  face of the earth to a point 10 ⁵ km from the centre of the earth is4.92 x 10 ⁸J.    

The  quantum of work done to move 1 kg mass from the  face of the earth to a point 10 ⁵ km from the centre of the earth can be calculated using the gravitational implicit energy formula.

The gravitational implicit energy is the  quantum of work done by an external force in bringing an object from  perpetuity to a point in space where it can be  told  by  graveness. When an object is moved from the  face of the earth to a point 10 ⁵ km from the centre of the earth, the gravitational implicit energy of the object increases.  

The formula for gravitational implicit energy is given by  U = - GMm/ r  where U is the gravitational implicit energy  G is the universal gravitational constant  M is the mass of the earth  m is the mass of the object  r is the distance between the object and the centre of the earth.  

We know that the mass of the object is 1 kg,  the mass of the earth is    and the distance from the centre of the earth to a point 10 ⁵ km down is           Plugging these values into the formula, we get         thus, the  quantum of work done to move a 1 kg mass from the  face of the earth to a point 10 ⁵ km from the centre of the earth is 4.92 x 10 ⁸J.

the mass of the earth is \(5.97 * 10^2^4 kg\),

and the distance from the centre of the earth to a point 10⁵ km away is:

\(= 6.38 * 10^6 + 10^5 km\)

\(= 6.48 * 10^6 km\)

\(= 6.48 * 10^9 m\).

Plugging these values into the formula, we get

\(U = -6.67 * 10^-^1^1 * 5.97 * 10^2^4 * 1 / 6.48 * 10^9\)

   \(= -4.92 * 10^8 J\)

Therefore, the amount of work done to move a 1 kg mass from the surface of the earth to a point 10⁵ km from the centre of the earth is 4.92 x 10⁸ J.

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Answer:

its 1

Explanation:

Several factors can increase the rate of a chemical reaction. In general, anything that increases the number of collisions between particles will increase the reaction rate, and anything that decreases the number of collisions between particles will decrease the chemical reaction rate.

Hope this helps? :))

Comets are small celestial bodies composed of ice, dust, and rock. As they orbit the sun, they develop a coma, a gaseous atmosphere, and a tail that extends millions of miles behind them. As a comet approaches the sun, the heat causes the ice to vaporize, releasing gas and dust particles that form the coma and tail.

When a comet is at its farthest distance from the sun, the gravitational potential energy of the sun-comet system is at a maximum. This is because the distance between the comet and the sun is greatest at this point in the comet's elliptical orbit, meaning that the gravitational force between the two objects is at its weakest. The kinetic energy, speed, total energy, and acceleration of the comet are all affected by various factors such as the shape and size of the comet's orbit, but they are not specifically at a maximum when the comet is at its farthest distance from the sun.

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Answer:

3/2 Ω

Explanation:

ONE WAY :

1/ (1/3 + 1/3)  = 1/(2/3) =  3/2 Ω

When you have two resistors in parallel , here is another way

   3*3 /(3+3)  = 9/6 = 3/2  Ω    

 ( you can use this method ONLY when you have two parallel resitances !)

The value of the current flowing through the shunt is 0.08 A.

The value of the current flowing through the shunt is calculated by applying the following formula.

I = V/R

where;

The voltage flowing through the shunt is calculated as;

V/V'  = L/L'

where;

V/3 = 80/100

V = (3 x 80 ) / 100

V = 2.4 V

The current flowing through the shunt is calculated as;

I = 2.4 / 30

I = 0.08 A

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Seismic movement, Volcanic Activity, Plate Tension

Answer:

As the temperature increases, the volume of the material also increases. This is known as thermal expansion. It can also be explained as the fractional change in the length or volume per unit change in the temperature.

The relation between alpha, beta, and gamma is given in the form of a ratio and the ratio is 1:2:3 and can be expressed as:

alpha=fracbeta2=fracgamma3

Following is the relation between the three:

L = L (1 + α.ΔT)

Where, α is the coefficient of linear expansion  

A = A (1 + β.ΔT)

Where, β is the coefficient of aerial expansion

V = V (1 + γ.ΔT)

Where, γ is the coefficient of cubical expansion  

V = V + γV.ΔT

V = V (1 + γ.ΔT)  

L3 = L3 (1 + α.ΔT)3

L3 = L3 (1 + 3α.ΔT + 3α2.ΔT2 + α3.ΔT3)

L3 = L3 (1 + 3α.ΔT)

Alpha, beta, and gamma are related to one another in the form of a ratio, and that ratio is 1:2:3, and yes they are universal constants.

A substance's volume expands while its mass stays constant. Heating is typically the cause of expansion. When a substance is heated, the molecular bonds separating its particles weaken, the particles move more quickly, and the substance expands as a result.

Determine the relation as shown below,

L = L (1 + α × Δ T)

here, α is the coefficient of linear expansion  

A = A (1 + β × Δ T)

here, β is the coefficient of aerial expansion

V = V (1 + γ × Δ T)

here, γ is the coefficient of cubical expansion  

V = V + γ × V × Δ T

V = V (1 + γ × ΔT)  

L3 = L3 (1 + α × Δ T)3

L3 = L3 (1 + 3α × ΔT + 3α2 × ΔT2 + α3 × ΔT3)

L3 = L3 (1 + 3α × Δ T)

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Answer:

Magnification of the objective lens used and the magnification of the ocular lens.

Explanation: I hope you have/had an amazing day today<3

Explanation:

It is given that,

Initial velocity of the projectile, u = 142 ft/s

Initial height off the ground, \(h_o = 93\ feet\)

We need to find the height of the projectile t seconds after its shot. It is a concept of kinematics. The equation of projectile is given by the formula as follows :

\(h= -16t^2+ut+h_o\)

t is time in seconds

So, putting all the values we get :

\(h= -16t^2+128t+112\)

Hence, this is the required solution.

The mass and weight of object on moon is 0.0138kg  and 0.0229kg .

Since force is a vector quantity, we must consider the direction in which it acts. There are two main types of frictional force: static force (Fst) and sliding force (Fsl). Normal forces (FN) produce these forces acting perpendicular to the direction of motion, although they act in the opposite direction to the object's motion.

It is equivalent to the weight of the object plus the extra weight. For example, pushing down on a block of wood on a table increases the normal force and thus the frictional force.

me=12Kg

ge=10

gm=10/6= 1.66

M=?

me ge =M gm

M=me ge/gm

M=120/1.66

M=0.0138kg

W=mg =0.0138 x 10kg

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Answer:

43.58 m

Explanation:

If you travel 500 m on a straight road that slopes upward at a constant angle of 5 degrees

Using trigonometry ratio

Sin 5 = opposite/hypothenus

Where the hypothenus = 500m

Opposite = height h

Sin 5 = h/500

Cross multiply

500 × sin 5 = h

h = 500 × 0.08715

h = 43.58m

Therefore, the height above the starting point is equal to 43.58m

Answer:

???

Explanation:

Answer:

His third law states that for every action or force in nature there is an equal and opposite reaction.

Explanation:

The heavier the books get, the harder it is for Molly to exert enough force to move the cart.

I hope this helps!!!!!!   Please mark me brainliest!!

Answer: A I just got it wrong because of the other person.

Explanation:

The electromagnetic waves are those waves that move through space and carry electromagnetic radiant energy.  They include radio waves and microwaves. and many more.  

Hence the option A is correct.

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The measurement of 32.3 kJ is equivalent to approximately 7,726.94 calories.

Energy can be measured in different units, such as calories and joules. To convert between these units, we need to know the conversion factor.

One joule (J) is equivalent to 0.239005736 calories (cal). Therefore, to convert kilojoules (kJ) to calories, we need to multiply the value in kilojoules by the conversion factor.

In this case, we have 32.3 kJ. To convert it to calories, we multiply 32.3 by the conversion factor:

32.3 kJ * 0.239005736 cal/J ≈ 7,726.94 calories

Hence, the measurement of 32.3 kJ is approximately equivalent to 7,726.94 calories. It's important to note that the conversion factor used here is an approximate value, and the exact conversion factor may vary slightly depending on the specific definitions and standards used for calories and joules.

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Answer:

'distance' is a 'dependent' variable, and 'stopping' distance is 'an independent' variable.

Explanation:

As we know the independent variable is basically the variable the independent variable is the variable the researcher or a lab person tends to change or control, and its tendency to have a direct effect on the dependent variable.

In this example, two cars are on a track and accelerate to 60 mph. At a certain point, both cars slam on the brakes. The distance it takes for each car to stop is then measured.

It means the 'covering' distance depends upon where the cars tend to stop. It can be a long-distance depending upon how fat the cars go before both cars slam on the brakes.

Therefore, 'distance' is a 'dependent' variable, and 'stopping' distance is 'an independent' variable.

Explanation:

a) i) Calculation of the friction force:

The friction force can be determined using the equation:

friction force = coefficient of friction * normal force

The normal force is equal to the weight of the object, which can be calculated as:

normal force = mass * gravitational acceleration

where the gravitational acceleration is approximately 9.8 m/s².

normal force = 75 kg * 9.8 m/s² = 735 N

friction force = 0.4 * 735 N = 294 N

ii) Calculation of the acceleration of the body:

Now, we can calculate the acceleration using Newton's second law:

net force = mass * acceleration

Since the applied force and the friction force act in opposite directions, the net force can be calculated as:

net force = applied force - friction force

net force = 300 N - 294 N = 6 N

mass = 75 kg

6 N = 75 kg * acceleration

acceleration = 6 N / 75 kg = 0.08 m/s²

b) Explanation:

In part (a), we calculated the friction force to be 294 N and the acceleration of the body to be 0.08 m/s². The positive acceleration indicates that the body is moving in the direction of the applied force.

The friction force opposes the motion of the body and acts in the opposite direction to the applied force. In this case, the applied force of 300 N is greater than the friction force of 294 N. As a result, the net force acting on the body is 6 N in the direction of the applied force.

The small net force of 6 N, compared to the body's mass of 75 kg, results in a relatively low acceleration of 0.08 m/s². This indicates that the body will accelerate slowly in the direction of the applied force due to the presence of friction.

Overall, the friction force and the resulting acceleration of the body are determined by the coefficient of friction (μ) and the mass of the object. In this case, the body experiences a relatively high friction force, leading to a small acceleration.

Answer:

When two objects interact, each one exerts a force on the other that can cause energy to be transferred to or from the object. For example, when energy is transferred to an Earth-object system as an object is raised, the gravitational field energy of the system increases.

Explanation:

Force and work are directly proportional to each other, while force and displacement are indirectly propotional. The equation showing the relationship is W= Fd. W represents work measured in joules; F represents force in newtons; and d represents distance in meters.

The formula Laquan is using to calculate the perimeter of a rectangle, p = 2l + 2w, is incorrect.

The correct formula for the perimeter of a rectangle is p = 2(l + w), where l represents the length and w represents the width of the rectangle.In Laquan's formula, there seems to be a multiplication symbol (*) instead of the addition symbol (+) between 2l and 2w. This error would lead to an incorrect result. By using the correct formula, the perimeter of a rectangle can be calculated by adding twice the length to twice the width.To fix the program, Laquan should replace the multiplication symbol (*) with the addition symbol (+) in the formula. This way, the program will accurately calculate the perimeter of the rectangle.

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Answer:

40

Explanation:

Answer:

kinetic energy

Explanation:

Electrical energy is a type of kinetic energy caused by moving electric charges. The amount of energy depends on the speed of the charges – the faster they move, the more electrical energy they carry.