What is a topgraphic map?

Answer:

The total displacement 560 m

Explanation:

 Given:

t₀ = 0 s

t = 25 s

V₀ = 10 m/s

V = 35 m/s

___________

D - ?

Acceleration:

a =  (V - V₀) / (t - t₀) = (35 - 10) / (25 - 0) = 25 / 25 = 1.0 m/s²

The total displacement:

D = V₀·t + a·t² / 2

D = 10·25 + 1.0·25² / 2 ≈ 560 m

When potential energy decreases, kinetic energy increases.

Answer:

I think it is decrease

correct if wrong

Answer: 900  feet

Given Velocity (V₁)=20mph≈29.334 t/s

it take 100 feet to stop

Using Equation of motion

v²-u²=2as

where

v,u=Final and initial velocity

a=acceleration

s=distance moved

0-(29.334)²=2(-a) (100)

a=29.331²/2×100=1.302 t/s²

When velocity is 60 mph

v²-u²=2as

0-(88.002)²=2-(-4.302) (s)

s=900.08 feet

Given a distance and the amount of time needed to travel that distance, an object's speed can be calculated using the speed formula. By substituting the known values in the formula for speed and further analyzing, we can also use the speed formula to compute the distance or time.

Let's use the speed formula to answer a few intriguing issues. Figure 1: In an hour, a train might go 120 kilometres. Using the speed formula, calculate the train's speed in m/s.

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Answer:

Energy is: the ability to do work

The formula for energy is: power x time = energy

Explanation:

Hope this helps (there isn't really an explanation)

A gas dissolves in a liquid most rapidly when under High pressure.

An example of a high pressure boiler is one that produces energy in thermal power plants that runs at 80 bars or more. They produce electricity by turning water into steam through thermal energy using water-filled tubes in a metal tank or enclosure, which is then utilized to power machinery. There is a higher likelihood of leaks occurring in the system if the boiler pressure is too high. The system won't function as well if the boiler pressure is too low, though. For your system to effectively heat your home, it is crucial to maintain the proper boiler pressure.

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When a light rain falls after oil and gasoline have leaked onto the road surface, it can cause the car to become less responsive and more difficult to control.

This is because the oil and gasoline act as a slippery layer on the road surface, which reduces the friction between the tires and the road. The rainwater can then mix with the oil and gasoline, making the layer even more slippery and reducing the vehicle's grip on the road.

To help mitigate this issue, drivers should be aware of their surroundings and the potential for slippery surfaces, and should adjust their speed and driving accordingly. Additionally, using tires with greater tread, or using more aggressive tires designed for wet and slippery conditions, can also help increase the vehicle's grip on the road.

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After considering the given data we conclude that the coefficient of kinetic friction between the box and the ground is approximately 0.41, which is Option A.

To solve the problem, we can use the following formula:
\(a = (vf - vi) / t\)
where a is the acceleration, vf is the final velocity (which is zero in this case), vi is the initial velocity (which is 20 m/s), and t is the time taken to stop (which is 5.0 seconds).
We can then use the following formula to calculate the coefficient of kinetic friction:
\(f_k = (ma) / (mg)\)
where \(f_k\) is the force of kinetic friction, m is the mass of the box, g is the acceleration due to gravity, and a is the acceleration calculated above.
Substituting the given values, we get:
\(a = (0 - 20 m/s) / 5.0 s = -4.0 m/s^2\)
\(f_k = (m * a) / (m * g) = a / g = -4.0 m/s^2 / 9.81 m/s^2 = -0.407\)
Since the coefficient of kinetic friction cannot be negative, we take the absolute value:
\(f_k = 0.407\)
Therefore, the coefficient of kinetic friction between the box and the ground is approximately 0.41, which is Option a.
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Answer:

Photosynthesis is the process of using water, carbon dioxide and sunlight to produce sugar. The process of photosynthesis requires specialized cellular structures called chloroplasts to capture energy from the Sun and converted into chemical energy.

Explanation:

In a perfectly elastic head-on collision between two billiard balls of equal mass, the velocities of the balls are simply exchanged after the collision.

This means that the speed of ball 1 after the collision will be 3.00 m/s in the opposite direction, and the speed of ball 2 will be 2.00 m/s in the opposite direction. This can be explained using the law of conservation of momentum, which states that the total momentum before the collision is equal to the total momentum after the collision.

Before the collision, the total momentum is:

p1 + p2 = m1v1 + m2v2 = (m)(2.00 m/s) + (m)(-3.00 m/s) = -m m/s

After the collision, the total momentum is:

p1' + p2' = m1v1' + m2v2' = (m)(-3.00 m/s) + (m)(2.00 m/s) = -m m/s

Since the total momentum is conserved, we can see that the velocities of the balls are simply exchanged after the collision. Therefore, the speed of ball 1 after the collision will be 3.00 m/s in the opposite direction, and the speed of ball 2 will be 2.00 m/s in the opposite direction.

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Answer:

Explanation:

Given:

V₀ = 3.0 m/s

H = 5.2 m

__________

L - ?

Time for the ball to fall vertically:

H = g·t²/2;    ⇒    t = √ (2·H / g) = √ (2·5.2 / 9.8) ≈ 1.0 c

Move the ball horizontally:

L = V₀·t = 3.0·1.0 = 3.0 m

If a boy throws a ball with a horizontal velocity of 3.0 m/s, from a height of 5.2 m over the ground , then the horizontal displacement of the ball is 3.09 meters.

There are three equations of motion given by Newton,

v = u + at

S = ut + 1/2 × a × t²

v² - u² = 2 × a × s

As given in the problem If a boy throws a ball with a horizontal velocity of 3.0 m/s, from a height of 5.2 m over the ground

S = ut + 1/2 × a × t²

5.2 = 0 + 0.5 × 9.8 ×  t²

t² = 5.2 / 4.9

t = 1.03 seconds

The horizontal displacement of the ball = 1.03 × 3

                                                                  = 3.09 meters

Thus, the horizontal displacement of the ball is 3.09 meters.

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Water freezes more quickly when it is exposed to colder temperatures and when it is in a container with a large surface area, which allows for faster heat transfer.

Water freezes at 32 degrees Fahrenheit (0 degrees Celsius). The time it takes for water to freeze at this temperature depends on several factors such as the volume of water, the container it is in, and the environment in which it is located.

Assuming that the water is in a typical home freezer and the volume of water is not too large, it would typically take several hours for the water to freeze completely. The exact amount of time it takes for the water to freeze would depend on the volume of water and the temperature of the freezer.

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Answer: A. It brings scientists closer to distant objects.

Explanation:

When light from infinite coming toward the lens of the telescope then this light is converge at the focal plane of the lens. This will image which is formed at the focal plane worked as an object for another lens of the telescope.

Now another lens made the final virtual image which is seen by the observer.

So here in this whole process the main working of Telescope is to form the image of a distant object near to the eye of an observer. So the light coming from the infinite distance is collected together and then a bright image is formed by that light so that observer is able to see the image clearly

so here correct answer would be

A. It brings scientists closer to distant objects.

Answer:

Answer: A. It brings scientists closer to distant objects.

Explanation:

The person must pull downward with a force equal to her weight, which is approximately 760 N in order to raise herself slowly at a constant speed.

When the person pulls downward on the bucket, there are two forces acting on the system: the force of gravity pulling the person and the bucket down, and the force of the person pulling the bucket up. In order for the person to raise herself at a constant speed, the force she exerts on the bucket must be equal and opposite to the force of gravity pulling her down.

The force of gravity on the person and the bucket is equal to their combined weight, which can be calculated as mass times gravitational acceleration (77 kg x 9.81 m/s^2 = 755.37 N). Therefore, the person must exert a force equal to her weight (approximately 760 N) in order to counteract the force of gravity and raise herself at a constant speed.

Thus, to lift herself up slowly and steadily, the person needs to exert a downward force that is equivalent to her weight, which is around 760 Newtons.

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The approximate average speed of the molecules in the gas is 410 m/s

mv² = nRT

Divide both side by m

v²= nRT / m

Take the square root of both sides

v = √(nRT / m)

v = √(2 × 8.31 × 323 / 0.032)

v = 410 m/s

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Shenna has recorded the property of cleavage. Cleavage refers to the tendency of a mineral to break along flat, smooth planes due to its internal structure.structure.So,The correct option would be (A) Cleavage.

Cleavage is a property that describes how a mineral breaks along planes of weakness, resulting in smooth, flat surfaces. It is one of the key characteristics used to identify and classify minerals.

In the given observations, Shenna noted that the mineral sample called "Mica" breaks into thin sheets. This characteristic indicates that Mica exhibits cleavage. When Mica is subjected to stress or force, it breaks along flat planes, resulting in thin, sheet-like fragments.

On the other hand, Shenna described the mineral sample called "Pyrite" as having cubic crystals. While this information is valuable for identifying Pyrite, it does not pertain directly to the property of cleavage.

Shenna has recorded the property of cleavage based on his observation that the mineral sample called "Mica" breaks into thin sheets.sheets.Hence the correct answer is Cleavage. Cleavage refers to the tendency of a mineral to break along flat, smooth planes due to its internal structure.

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The acceleration's direction is always mirrored by the net force.

Given that a sailboat is moving across the water at a constant speed, we must determine the direction of the fourth point on the board.

As a result, we can claim that the investigation of bowties judo has been granted that bowties are moving at a constant speed.

In light of Newton's second law, the net force exerted on the boat is thus negligible since it equals mass times acceleration, and since acceleration is zero.

As a result of the velocity limitations, the solution is equal to this rate of change in velocity.

Execution is 0 for now. So that we can understand their responsibilities. There was no fourth act aboard the boat.

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Answer:

6 kilometers per hour

Explanation:

Distance = 15km

Time= 2 hours 30 minutes

Speed = Distance / Time

Speed = 15 / 2.5

Speed = 6 km per hour.

Answer:

Rachels car moves and ashleys stops

Explanation:

When Ashley's moving car collides with Rachel's bumper car which is at rest then some of the momentum of Ashley's car is transferred to Rachel's car causing it to move.

Conservation of momentum states that the momentum of a system is constant if there is the absence of external forces on the system. The momentum of an object can be conserved and is a vector quantity.

Momentum can be defined as the multiplication of the mass of a particle and its velocity. The law of conservation of momentum is confirmed by experiment and can be deduced mathematically on the presumption that space is uniform.

Conservation of linear momentum is derived from Newton’s second law of motion states that the total momentum remains the same in an isolated system.

The total momentum of  Ashley's car and Rachel's car remains conserved. After the collision, the momentum transferred from  Ashley's car and Rachel's car which makes it move.

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Answer:

what is it about

Explanation:

Answer:

Note: These answers are based off of sense and educational quessing, as I cannot do the experiment.

Question 1:

The balloons did not balance.

Question 2:

The bigger balloon tipped the scale down.

Question 3:

Yes, it validated that gas does has mass, as the bigger balloon weighed down the scale.

Question 4:

N/A

The physical pendulum consists of a meter stick that is pivoted at a small hole drilled through the stick a distance 0.056mfrom the 50 cm mark

The period of a physical pendulum is given by T = 2π √(L/g), where L is the length of the pendulum and g is the acceleration due to gravity. We can use this formula to find the distance d.

To find d, we use the formula:

T = 2π √(L/g)

Where T is the period, L is the length of the pendulum, and g is the acceleration due to gravity.

We know that T = 2.5 s, g = 9.8 \(m/s^2\) and L is the distance from the pivot point to the center of gravity of the pendulum which is the 50 cm mark on the meter stick, so L = 0.5m.

We can rearrange the formula to solve for d :

d = L * √(\(T^2/4$\pi^2\) -1/g)

With the given values we can substitute in the formula

d = 0.5* √(\(2.5^2/4$\pi^2\) -1/9.8)

d = 0.056m

Therefore, The distance d from the 50cm mark is approximately 0.056m.

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Answer:

A. 2 m/\(s^{2}\)

Explanation:

Mass of wagon = 15 kg

Horizontal force = 45 N

frictional force = 15 N

It is good to note that part of the exerted horizontal force would be used to overcome the frictional force on the wagon.

So that, total force exerted on the wagon can be determined by;

total force = horizontal force - frictional force

                 = 45 - 15

                 = 30 N

From Newton's second law of motion, we have;

F = ma

Where: F is the force applied on an object, m is its mass, and a is the acceleration of the object.

Thus,

30 = 15 x a

a = \(\frac{30}{15}\)

  = 2 m/\(s^{2}\)

The acceleration of the wagon is 2 m/\(s^{2}\).

When a magnet is brought closer to ferromagnetic materials, atomic dipoles start to orient upward, which makes the materials magnetic.

Any substance that can draw iron and create a magnetic field around itself is a magnet. All known elements and several compounds had been investigated for magnetism by both the final decade of the nineteenth century, and it was discovered that every one of them possessed some sort of magnetic property.

Permanent magnets, transient magnets, and electromagnets are the three different categories of magnets. No external source either magnetism or electricity is required for permanent magnets to emit a magnetic field.

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The feedforward perceptron neural network with threshold activation function has the following structure: h(x) = θ(ax+b)

Here h(x) is the output of the perceptron for an input vector x, θ(x) is the threshold function, and a and b are constants.

The activation value for each node, we need to evaluate the threshold function for each input vector and find the output of the perceptron for that input vector.

For the input vector < 0,1>, the threshold function can be evaluated as follows:

θ(0a + 1b) = θ(0 + 1) = 1

The output of the perceptron for this input vector can be found by substituting the threshold function into the equation for the output of the perceptron:

h(x) = θ(ax+b)

h(x) = 1(0 + 1)x + 1b = 1*x + 1

Therefore, the activation value for each node is the weighted sum of the inputs to the node plus the bias term, scaled by the output of the perceptron:

h0,3 = 1*(-1) + 10 + 11 + 01.5 + 1-1 + 1*1 = 1.5

h1,3 = 11 + 10 + 11 + 01.5 + 1*-1 + 1*1 = 0.5

h2,3 = 11 + 10 + 11 + 01.5 + 1*-1 + 1*1 = 0.5

h0,4 = 1*(-1) + 10 + 11 + 01.5 + 1-1 + 1*1 = 1.5

h1,4 = 11 + 10 + 11 + 01.5 + 1*-1 + 1*1 = 1

h2,4 = 11 + 10 + 11 + 01.5 + 1*-1 + 1*1 = 1

h0,5 = 1*(-1) + 10 + 11 + 01.5 + 1-1 + 1*1 = 1.5

h3,5 = 11 + 10 + 11 + 01.5 + 1*-1 + 1*1 = 1

h4,5 = 11 + 10 + 11 + 01.5 + 1*-1 + 1*1 = 1

Note that the bias terms are included in the output of the perceptron, so they do not need to be added to the activation values of the nodes.  

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Answer:

The uniy which is accepted all over the world is called SI unit.

Explanation:

The system of measurement that is agreed by the international convention if scientists that is held in paris of France to adopt an international unit is called SI unit unit.

It is not possible to directly determine the number of particles based on the speed of sound alone.

The speed of sound through a solid is determined by the density and elastic properties of the material, and not directly by the number of particles.

However, the number of particles can affect the density and elastic properties, which in turn affect the speed of sound.

So, it is possible to use the speed of sound to make inferences about the density and elastic properties of a solid, but it is not possible to directly determine the number of particles based on the speed of sound alone.

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The sun's rotation plays a significant role in its magnetic activity and radiation

.The sun's magnetic field is created by the motion of electrically charged plasma in its interior, which is driven by the rotation of the sun. As the sun rotates, its magnetic field lines become twisted and tangled, which can lead to the formation of sunspots, solar flares, and coronal mass ejections. These events can release large amounts of energy and material into space, including high-energy particles and radiation.

The sun's rotation also affects the distribution of magnetic fields and radiation across its surface. As the sun rotates, its magnetic fields can become concentrated in certain regions, which can lead to the formation of active regions with high levels of magnetic activity and radiation. These regions can produce intense bursts of energy and radiation, including X-rays and ultraviolet light.

Overall, the sun's rotation is a crucial factor in determining its magnetic activity and radiation output. Understanding these processes is essential for predicting and mitigating the effects of space weather on Earth and other planets in the solar system.

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