3. A Japanese bullet train slows from a speed of 50 m/sec to a speed of 40 m/sec in 500m.
What is its acceleration?

When you see the error message "could not find angular material core theme. most material components may not work as expected," it means that the Angular Material theme is missing, and the application is having difficulty displaying Material components.

Here are some steps to resolve this issue:

1. You should first ensure that Angular Material has been installed in your application. You may use the following command to install Angular Material:ng add ("at" symbol)angular/material

2. Then, import the necessary styles in the styles.scss file to include the Angular Material theme.

Once you've completed these steps, restart your server and see if the error has been resolved. The Material Design components should now display correctly.

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Answer:

Explanation:

Evolution/Advancement on the off chance that you see,then you will find this is a definitive revelation of science.It demonstrated that how people came into the world.How different creatures endure and from where they have hit on where they are today.All such things are the piece of development process.

New things advanced consistently from the past one and its a slow process.For anything to sprout you need a seed.As per the scientist,evolution is a reality and it is a steady procedure and it is happening.There are scarcely any situations where in the old harvest can yield new assortment as well.This is something many refer to as advancement only.Its a ceaseless process.Whatever comes,it accompanies certain misstep or zones of improvement,so if there happens to be a few changes would prompt improvement of new thing.

In the event that you see at an early stage,worms were available ,from where the fish came,then some went ahead land and began adjusting the progressions require to make due on land,started strolling on legs,developed lungs,then likewise there were advancement of the considerable number of things require to proceed with the life.All are the piece of development as it were.

hence,Darwin said,that natural selection can prompt evolution.This is likewise evident that so as to address the issue of food and nutrition,everybody works and as long as you get those needs,there will be development in all aspects.Similarly happened to the antiquated occasions when advancement occurred.

Hence,The development is truth and is a continuous procedure according to the science.When you go to demonstrate some case,there are consistently a point from where new methodology can be shaped and can prompt another disclosure.

If we consider the theory of evolution then we can say that it’s a proven theory, the reason people says that scientists don’t prove anything is because of the fact that they always implement “Precautionary principle” in their research finding.

Answer:

.

Explanation:

The surface area of the part of the tire that is in contact with the ground is approximately 0.00147 square meters.

To solve this problem, we can use the formula for pressure:
pressure = force / area

In this case, the force is the weight of the bicycle and rider, which is 90 kg times the acceleration due to gravity (9.81 m/s²):

force = 90 kg * 9.81 m/s² = 882.9 N

The area we're interested in is the surface area of the part of the tire that is in contact with the ground. Let's call this A.

Using the formula for gauge pressure:

gauge pressure = absolute pressure - atmospheric pressure

Assuming atmospheric pressure is 101,325 Pa, we can solve for the absolute pressure:

absolute pressure = gauge pressure + atmospheric pressure
absolute pressure = 5.5 x 10⁵ Pa + 101,325 Pa
absolute pressure = 6.01 x 10⁵ Pa

Now we can use the formula for pressure again to solve for the surface area:

Absolute pressure = force / area
6.01 x 10⁵ Pa = 882.9 N / A

A = 882.9 N / 6.01 x 10⁵ Pa
A = 0.00147 m^2

So, the surface area of the part of the tire that is in contact with the ground is approximately 0.00147 square meters.

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When are the displacement and acceleration equal to zero for the motion of a mass on a spring?

The correct answer would be:

C. At the equilibrium position

The motorist would have to be traveling at approximately 0.1864 times the speed of light to see the yellow light appear red due to the Doppler shift.

To determine the speed at which a yellow traffic light (λ = 590.00 nm) appears green (λ = 550.00 nm) due to the Doppler shift, we can use the formula for the Doppler effect:Δλ / λ = v / c

Simplifying the equation: v / c ≈ -0.0678

(b) Therefore, the motorist should be traveling away from the traffic light to see the yellow light appear green due to the Doppler shift.

(c) To determine the speed at which a yellow traffic light (λ = 590.00 nm) appears red (λ = 700.00 nm) due to the Doppler shift, we can use the same formula: Δλ / λ = v / c

Let's calculate the change in wavelength: Δλ = 110.00 nm

Substituting the values into the Doppler effect formula: 110.00 nm / 590.00 nm = v / c

Simplifying the equation: v / c ≈ 0.1864

To find the speed of the motorist, we need to multiply the ratio (v / c) by the speed of light in a vacuum (c): v ≈ 0.1864 * c

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The answer is 200 joules.

Answer:

Its answer is 200joule.

Explanation:

Hope it's helpful for you

(A) Moment of inertia about an axis that passes through the intersection of the two segments, Ia = 1/12 ML². (B) Moment of inertia travelling via the intersection of the line's two ends and midpoint, Ix = 1/3 ML²

(A) The moment of inertia about an axis passing through the intersection of the two segments will be the same if the rod is bent at the centre and the distance between all of the points and the axis stays constant i.e. Ia = 1/12 ML²

(B) Calculate the moment of inertia on a line connecting the two ends and passing through a point midway along it.

Determine the distance between the ends as a first step ( d )

After utilizing Pythagoras's principle

d =√2/2L

Determine the distance between the two axes as the next step ( x )

After utilizing Pythagoras's principle

x =√3/4/L

Compute the value of Ix as the last step.

the Parallel Axis Theorem is applied

Iₓ = Iₐ + Mx²

Iₓ = 1/12ML² + 1/4 ML²

Iₓ = 1/3ML²

This leads us to the following conclusions: Moment of inertia passing through the place where the two segments meet is  Ia = 1/12 ML², about an axis: Moment of inertia passing through the point where the line's midpoint meets its two ends is Ix = 1/3 ML²

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The Nutrition Facts panel must include the grams of monounsaturated fat, grams of total fat, and total calories from saturated fat.

a. The total calories from trans fat are not required to be included in the Nutrition Facts panel. Trans fat is listed separately under "Total Fat" and does not have its own specific calorie value.

b. The grams of monounsaturated fat are required to be included in the Nutrition Facts panel. Monounsaturated fat is a type of fat that is beneficial for health, and its quantity is provided to help consumers make informed choices.

c. The grams of total fat are required to be included in the Nutrition Facts panel. Total fat represents the sum of all types of fats present in the food product.

d. The total calories from saturated fat are required to be included in the Nutrition Facts panel. Saturated fat is a type of fat that is associated with an increased risk of certain health conditions, and providing the calorie value helps consumers monitor their intake.

Therefore, the Nutrition Facts panel must include b. grams of monounsaturated fat, c. grams of total fat, and d. total calories from saturated fat.

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Answer:

In physics, resistive force is a force, or the vector sum of numerous forces, whose direction is opposite to the motion of a body, and may refer to: Friction, during sliding and/or rolling.

A 7.80-g bullet moving at 575 m/s penetrates a tree trunk to a depth of 5.50 cm. (a) Use work and energy considerations to find the average frictional force that stops the bullet. (b) Assuming the frictional force is constant, determine how much time elapses between the moment the bullet enters the tree and the moment it stops moving.

Explanation:

Answer:

When white light shines on the bubble, it acts as a prism. While some of the white light bounces back off, some of them pass through the prism forming fringes of colors. But then, they too bounce off the inner part of the film. So one set of light rays shine into a soap bubble, but two sets of rays come back out again. When they emerge, the waves that bounce off the inner film have traveled a tiny bit further than the waves that bounced off the outer film. So, we have two sets of light waves. After that, the waves starts merging (Just like the ripples in the pond) . Some add together while some cancel out. That is why we see the pattern of colors repeating in the thin film soap.

The California sea lions communicate  is  option C: 0.375 to 3 meters.

To calculate the approximate wavelengths of sound with which the California sea lions communicate, we can use the formula:

Wavelength = Speed of Sound / Frequency

Given:

Speed of Sound in Sea Water = 1,500 m/s

Frequency Range = 500 Hz to 4,000 Hz

For the lower frequency of 500 Hz:

Wavelength = 1,500 m/s / 500 Hz = 3 meters

For the higher frequency of 4,000 Hz:

Wavelength = 1,500 m/s / 4,000 Hz = 0.375 meters

Therefore, the approximate wavelengths of sound with which the California sea lions communicate are approximately 0.375 to 3 meters.

So, the correct answer is option C: 0.375 to 3 meters.

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To find the net force with two forces, you need to add the two forces together if they are in the same direction, or subtract them if they are in opposite directions.

So, the net force with two forces is found by adding the forces together if they are in the same direction, or subtracting them if they are in opposite directions.

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The mass of the bullet is calculated to be 0.04 kilograms.

This can be calculated using the following formula:

mass = force / acceleration

In this case, the force is 2,000 Newtons and the acceleration is 50,000 meters per second squared.

So, the mass of the bullet is:

mass =\(2,000 N / 50,000 m/s^2\)

        \(= 0.04 kg\)

The mass of the bullet is very small because it is traveling at a very high speed.

The force of the bullet is what propels it forward, and the acceleration is how quickly the bullet is gaining speed.

The smaller the mass of the bullet, the more force is required to accelerate it to a given speed.

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Answer:

W = 210 N

Explanation:

For an ideal machine:

\(Work\ In = Work\ Out\\(P)(L)=(W)(H)\)

where,

P = Effort = Spring Scale Reading = 70 N

L = Effort Arm = Length of inclined plane = 12 m

W = Actual Load (Weight) to be lifted = ?

H = Load Arm = Height = 4 m

Therefore,

\((70\ N)(12\ m) = (W)(4\ m)\\\\W = \frac{(70\ N)(12\ m)}{4\ m}\)

W = 210 N

17.01 m/s is the car’s velocity .

s=ut+at²/2

s-at²/2=ut

u=s-at²/2÷t

u=312/18.4

u=17.01 m/s

"The rate at which an item changes its location" is described by a vector number called velocity. Imagine someone walking swiftly, one step forward, one step back, and starting each step from the same location. Velocity is a vector quantity. Therefore, velocity is cognizant of direction. The direction must be taken into account when determining an object's velocity. A velocity of 55 miles per hour is not adequate information. It is necessary to account for the direction in order to accurately describe the object's velocity. Simply put, the direction of the velocity vector represents the motion of the object.

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Answer:

100

Explanation:

cause power equal to work over time

Answer:

1.127,56,000m

2. 347,600,000

3. 384,000

4. 200000000

5.  16,000,000cm

6. 36,000,000cm

7. 125,000m long, 400m deep, 1,500m wide

8. 11.18km/sec

9. 5,400,000

10.  2g

11. 1,200 mg to 2700 mg

12.   158000 kg

13. 450000000 mg

14.    23,000g to 90,000g

15.   40,000 ML

16.  1,000 ML

17.  26,600 KL

18. 1,558,000 L

19. 60 ML

20. 0.947

Answer:

Initial velocity (u) = 40 m/s

Distance travel in last 5 seconds = 100 m

Explanation:

Given:

Acceleration (a) = 8 m/s²

Final velocity (v) = 0 m/s

Find;

1] Initial velocity before 5 sec

2] Distance travel in last 5 seconds

Computation:

1] Initial velocity before 5 sec

v = u + at

0 = u + (-8)(5)

u - 40 = 0

Initial velocity (u) = 40 m/s

2] Distance travel in last 5 seconds

s = ut + (1/2)(a)(t²)

s = (40)(5) + (1/2)(-8)(5²)

s = 200 - 100

Distance travel in last 5 seconds = 100 m

Answer: Light bulb -> child’s eyes -> ball

Explanation:

I don’t know if it’s correct but I think that’s the answer

1. The volume of the bottle is 50 cm³

2. The density of liquid A is 1.28 g/cm³

The volume of the bottle can be obtained by calculating the volume of the water in the bottle. This is illustrated as follow:

Volume = mass / density

Volume of water = 50 / 1

Volume of water = 50 cm³

Thus, the volume of the bottle is 50 cm³

The density of liquid A can be obtained as shown below:

Density = mass / volume

Density of liquid A = 64 / 50

Density of liquid A = 1.28 g/cm³

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The energy required to accelerate a particle to speeds of 0.5c, 0.9c, and 0.99c can be calculated as 1.15E₀, 2.29E₀, and 7.08E₀, respectively, where E₀ represents the rest energy of the particle.

Einstein's mass-energy equivalence states that the total energy (E) of an object is equal to its mass (m) multiplied by the speed of light (c) squared, E = mc². To calculate the energy required to accelerate a particle to a specific speed, we need to consider the relativistic effects.

To express the energy in terms of the rest energy (E₀), we divide the total energy (E) by mc², resulting in E/E₀. Thus, for speeds of 0.5c, 0.9c, and 0.99c, we can calculate the energy required as follows:

a) For a speed of 0.5c:

  E/E₀ = (mc²)/(mc²) = 1E₀

  The energy required is equal to the rest energy.

b) For a speed of 0.9c:

  E/E₀ = γmc²/mc² = γ = 1/(1 - v²/c²)^(1/2)

  Here, v = 0.9c, so γ = 2.29

  The energy required is 2.29E₀.

c) For a speed of 0.99c:

  E/E₀ = γmc²/mc² = γ = 1/(1 - v²/c²)^(1/2)

  Here, v = 0.99c, so γ = 7.08

  The energy required is 7.08E₀.

Therefore, the energy required to accelerate a particle to speeds of 0.5c, 0.9c, and 0.99c is 1.15E₀, 2.29E₀, and 7.08E₀, respectively, where E₀ represents the rest energy of the particle.

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During the Tau Tauri phase of a protostar's evolution, the brightness decreases ( D )

Option A is incorrect because the forms long before the Tau Tauri phase. Option B is incorrect because the decreasing of surface area does not stop until nuclear ignition. Option C is incorrect because the brightness increases before and after the Tau Tauri phase and not during the Tau Tauri phase. Option E is incorrect because the nuclear burning ends the Tau Tauri phase.

Since the brightness increases before and after the Tau Tauri phase, during the Tau Tauri phase the brightness actually decreases. When the surrounding envelope has cleared in the third phase is called the Tau Tauri phase.

Therefore, during the Tau Tauri phase of a protostar's evolution, the brightness decreases ( D )

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91.655  mm of Hg pressure is lower when our blood pressure at  brain than it is at your heart.

pressure at brain= 121.8-30.135

pressure=91.655  mm Hg

Pressure is defined as force/area. To demonstrate the pressure from snow on a roof, divide the weight of the snow by the surface area of the roof. Gases are a typical pressure source in physics. A "vacuum" is used to describe the lack of pressure. Humans have long held the belief that vacuums are both improbably rare and unnatural since "nature abhors a vacuum." Actually, this is not the case.

The number of pressure units is ridiculous. It's common to use the torr or mmHg unit. This discussion is solely focused on the height of a mercury column. The atmosphere contains 760 torr, or mmHg. You could also look at mmH2O, which makes use of a comparable idea.

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The streamlines equations are \(x^2 - y^2 = c_1\) and \(xy = c_2\), where \(c_1\) and \(c_2\) are constants.

The velocity field is given by,

\(V_x = x (x^2 + y^2)^-^1^/^2\)

\(V_y = y (x^2+ y^2)^-^1^/^2\)

Now, we know that the tangent to a streamline is always parallel to the velocity vector. Hence, for the streamline equations, we must have

\(dx/dy = V_x/V_y\)

Therefore,\((x/y) = V_x/V_y = x/y\)

⇒ \(x^2 - y^2 = c_1\)

or, \((x+y)(x-y) = c_1\)

Hence, the equation of the streamlines are given by \(x^2 - y^2 = c_1\)

Now, for the other streamline equation, let's differentiate both sides of \(V_x\)= constant along the streamline:

\(dx/ds = constant/y\)

And differentiate both sides of \(V_y\) = constant along the streamline:

\(dy/ds = constant/x\)

Multiplying both equations, we get

\(xdx/ds = ydy/ds\)

or,\(xdx = ydy\)

Integrating, we get

\(x^2/2 = y^2/2 + c_2\)

or,\(xy = c_2\)

Thus, the equations of the streamlines are \(x^2 - y^2 = c_1\) and \(xy = c_2\)

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The 2022 TITAN XD reduces the transmission speed and the vehicle information display will indicate the status of the rear seat belts while playing a warning chime and how the truck rides quietly.

TOTAN XD 2022 was released in 2022 with key features that distinguish it from the past models the transmission speed change and the enhancement of the sensors to locate traffic were among the key features.

A transmission system in telecommunications is a system that sends a signal from one location to another. Electrical, optical, or radio signals can all be used as the signal.

Some transmission systems use regenerators, which try to reconstruct and reshape the coded information before retransmission, or multipliers, which enhance a signal before retransmission.

The suit of six safety measures is standard to all the models in the last including TITAN XD 2022.

TITAN XD 2022's braking is capable of applying brakes on each tyre separately to bring the vehicle to halt in an instant with safety .

The cargo bed though has the same length as the previous models but the pointing out feature is the salient nature of being silent in driving mode of TITAN XD 2022.

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In addition to playing a warning tone and displaying how softly the truck goes, the 2022 TITAN XD slows down the transmission and checks to see if the back seat belts are fastened.

The TOTAN XD 2022, which was released in 2022, differs from preceding models in a number of significant ways, including a faster transmission rate and better traffic detection sensors.

A transmission system is an apparatus that moves a signal from one location to another in the realm of communications. Electrical, optical, or radio signals can all be used to produce the signal.

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Answer:

C

Explanation:

you cannot any other thing if you don't even know what you are designing.

The first step in the technological design process is to define a need or problem, therefore the correct answer is option C.

There are mainly five stages of technological design,

Identifying the issue that needs to be solved is the first step in every problem-solving process.

The second stage is to imagine; during this phase,

The chosen product from the imaging stage is planned in the third stage.

Testing, evaluating, and modifying the product are the fourth stage.

The sharing of your solution is the fifth step. To gather comments, discuss your ideas with others, and enhance your product,

Technological designing is a lengthy process that involves a number of steps but identifying the problem we are going to is the most important step among all of the steps because a wrong approach to the problem would lead to faulty design in the later stages.

Thus, the first step in the technological design process is to define a need or problem, therefore the correct answer is option C.

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In the given options, the situations that will cause a current to be induced in a conductive loop in a uniform magnetic field B are:

b. The conductive loop is oriented so that it is perpendicular to B. The area of the loop is decreased.

d. The conductive loop is oriented so that it is perpendicular to B. The loop is moved parallel to the field lines of B.

e. The conductive loop is oriented so that it is perpendicular to B. The loop is moved perpendicular to the field lines of B.

Explanation:

According to Faraday's law of electromagnetic induction, a changing magnetic field through a conductor induces an electromotive force (EMF) that causes a current to flow in the conductor.

In situation b, when the area of the loop is decreased while maintaining its perpendicular orientation to the magnetic field B, the magnetic flux passing through the loop decreases. This change in magnetic flux induces an EMF and subsequently a current in the loop.

In situation d, when the conductive loop is moved parallel to the field lines of B, the magnetic flux passing through the loop changes. This change in magnetic flux induces an EMF and subsequently a current in the loop.

In situation e, when the conductive loop is moved perpendicular to the field lines of B, the magnetic flux passing through the loop changes. This change in magnetic flux induces an EMF and subsequently a current in the loop.

It's important to note that in situations a and c, although the loop lies in the plane of B and the magnitude of B may change, there is no change in the magnetic flux passing through the loop. Therefore, no current will be induced in the loop in these situations.

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Answer:

See below

Explanation:

It is a graph on the x -y coordinate system with (generally ) the y-axis is labelled 'velocity'   and the x - axis is 'time'   <==== with this, you can look at the time and find the velocity at that time on the graph