An object is accelerating uniformly from 8.0 m/s to 16.0 m/s in 10 seconds. How far does the object travel in 10 seconds?​

Answer: The pressure  of the air when compressed is \(5.0\times 10^5Pa\)

Explanation:

Boyle's Law: This law states that pressure is inversely proportional to the volume of the gas at constant temperature and number of moles.

\(P\propto \frac{1}{V}\)     (At constant temperature and number of moles)

\(P_1V_1=P_2V_2\)  

where,

\(P_1\) = initial pressure of gas  = \(1.0\times 10^5Pa\)

\(P_2\) = final pressure of gas  =?

\(V_1\) = initial volume of gas  = V

\(V_2\) = final volume of gas  = \(\frac{V}{5}\)

\(1.0\times 10^5\times V=P_2\times \frac{V}{5}\)  

\(P_2=5.0\times 10^5Pa\)

Therefore, the pressure  of the air when compressed is \(5.0\times 10^5Pa\)

The correct examples of cause-and-effect relationship are both the systems speed up for the duration of the force exerted on them. Both systems stop moving for the duration of the force exerted on them. Thus, the correct options are C, D, E, and G.

Cause-and-effect relationship describes a relationship which is present between actions or events in which at least one of the action or event is a direct result of the other action or events.

The correct examples of cause-and-effect relationship are both the systems speed up for the duration of the force exerted on them. Both systems stop moving for the duration of the force exerted on them. A spring can exert a force on the dynamic cart. The force of the spring continues to act upon the cart until it stops moving.

Therefore, the correct options are C, D, E, and G.

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In a DC generator, the generated electromotive force (emf) is directly proportional to the rotational speed of the generator's armature and the strength of the magnetic field within the generator.

This relationship is described by the equation for the generated emf in a DC generator:

Emf = Φ * N * A * Z / 60

Where:

Emf is the generated electromotive force (in volts),

Φ is the magnetic flux density (in Weber/meter^2\(meter^2\) or Tesla),

N is the number of turns in the armature winding,

A is the effective area of the armature coil (in square meters),

Z is the total number of armature conductors, and

60 is a constant representing the conversion from seconds to minutes.

From this equation, we can see that the generated emf is directly proportional to the magnetic flux density (Φ) and the product of the number of turns (N), effective area (A), and the total number of armature conductors (Z). This means that increasing any of these factors will result in a higher generated emf.

The magnetic flux density (Φ) can be increased by using stronger permanent magnets or increasing the strength of the field windings in the generator.

The number of turns (N) and the effective area (A) are design parameters and can be optimized for a specific generator. Increasing the number of turns or the effective area will result in a higher generated emf.

Similarly, the total number of armature conductors (Z) can be increased to enhance the generated emf.

By controlling and optimizing these factors, the generated emf in a DC generator can be increased, resulting in higher electrical output. However, it is important to note that there are practical limits to these factors based on the design and construction of the generator.

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Answer:

x_f = 212.5m

Explanation:

t = (x_f-x_0)/(.5*(v_f-v_0))

t = (98.26m-0m)/(.5(0m/s-17m/s))

t = 11.56s

a = (v_f-v_0)/t

a = (0m/s-17m/s)/11.56s

a = -1.47m/s²

t = (v_f-v_0)/a

t = (0m/s-25m/s)/-1.47m/s²

t = 17s

x_f = x_0+(.5*(v_f-v_0))*t

x_f = 0m+(.5*(0m/s-25m/s))*17s

x_f = 212.5m

We have:

L = 0.82 cm = 0.0082m

m= 125 kg

Hooke's Law

F = k x

Where:

F = force = mg = 125 kg (9.8 m/s^2 ) = 1225 N

k= spring constant

x= stretch

k = F / x = 1225 N / 0.0082 m = 149,390.24 N/m

The gravitational force on planet X is one-eight (¹/₈) of the magnitude of gravitational force on planet Y.

The gravitational force on each planet is directly proportional to the product of mass of the planet and the tennis ball and inversely proportional to the square of the radius of the planets.

F = GmM/r²

where;

The gravitational force on planet X is written as;

F_X = Gm(mt) / r²

where;

The gravitational force on planet Y is written as;

F_y = G(½m)(mt) / (¼r)²

F_y = ½(Gm(mt) / (¹/₁₆ r²)

F_y = (16 Gm mt)/(2r²)

F_y = 8(G m(mt) ) / r²

F_y = 8(F_X)

F_X = ¹/₈(F_Y)

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The velocity of the car is 5.5 m/s. Then the centripetal acceleration of the car will be 0.6 m/s².

Acceleration is a physical quantity measuring the rate of change in velocity. It has both magnitude and direction.

Centripetal acceleration is the acceleration of an  object moving through a circular path. Thus its measures the rate of change in velocity of the body moving in the curvature path.

The centripetal acceleration = V²/R.

Where R is the radius of the curvature path.

The car moves 50 m in 9 seconds. Its velocity is 50/9 = 5.5 m/s.

Thus, centripetal acceleration = (5.5 × 5.5) m/s/ 50 m = 0.6 m/s².

Therefore, the centripetal acceleration of the car moving at a speed of 9 m/s through curvature path is 0.6 m/s².

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Answer:

Answer:

Hugo de Vries

Explanation:

In the history of evolutionary biology, Hugo dr Vries is known as a proponent of the mutation theory of evolution, in which new species are believed to arise by single mutational events.

78% of the houses in Elizabeth's town were for sale last summer.

To find the percentage of houses that were for sale last summer in Elizabeth's town, we need to divide the number of houses for sale by the total number of houses and then multiply by 100.

The total number of houses in Elizabeth's town is given as 9,000. Last summer, 7,020 houses were for sale. To calculate the percentage, we divide 7,020 by 9,000:

Percentage = (7,020 / 9,000) * 100

Simplifying the calculation:

Percentage = 0.780 * 100

Percentage = 78.0%

To explain further, we take the number of houses for sale (7,020) and divide it by the total number of houses (9,000) to get the ratio of houses for sale to the total. Multiplying this ratio by 100 gives us the percentage. In this case, 78.0% indicates that a significant portion of the houses in Elizabeth's town were available for sale during the summer.

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Answer:As the temperature increases, the helium in the ballon expands.

Explanation:

I took the quiz already

The answer is C) As the temperature increases, the helium in the balloons expands.

Have a blessed day!

Gerard's average velocity for the ride is 6 meters per second.

To find Gerard's average velocity for the ride, we can use the formula:

Average velocity = Total displacement / Total time

First, we need to convert the distance traveled from kilometers to meters:

7.20 kilometers * 1000 = 7200 meters

Next, we convert the time from minutes to seconds:

20.0 minutes * 60 = 1200 seconds

Now, we can calculate the total displacement by subtracting the initial position from the final position. Since Gerard is riding directly east, there is no change in the east-west direction, so the displacement is equal to the distance traveled:

Total displacement = 7200 meters

Finally, we substitute the values into the average velocity formula:

Average velocity = 7200 meters / 1200 seconds

Average velocity = 6 meters per second

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Answer:

C

Explanation:

i think its C, not too sure

Answer: mass and speed

Explanation: Remember kinetic energy equals 1/2mv^2 so it is dependent on mass and velocity which is speed.

12.0 s

Explanation:

First, let's find the initial vertical velocity of the rock on earth. We know that

vy = v0y - gt

where g = 9.8 m/s^2. When the rock reaches its highest point, vy = 0. So if it takes 2.00 s to reach the maximum height, the initial velocity of the rock is

v0y = (9.8 m/s^2)(2.00 s) = 19.6 m/s.

We know that the moon only has 1/6 of earth's gravity. Therefore, if the same rock is given the same vertical velocity as on earth, then the time it takes to reach its maximum height is

voy = gt ---> t = voy/g

t = (19.6 m/s)/(9.8/6 m/s^2)

= 12.0 s

Explanation:

At any point on the arrow's trajectory, the horizontal component of the velocity is the same. Therefore, the horizontal component of the velocity at the top of its trajectory is

\(v_x = v_{0x} = v_0\cos{42°} = (7.6\:\text{m/s})\cos{42°}\)

\(\:\:\:\:\:=5.6\:\text{m/s}\)

Answer:

In a material, the magnetic behavior depends on the alignment of magnetic moments of the atoms. Magnetic moments are generated by the motion of the electrons in the atoms. When the magnetic moments of atoms in a material are aligned in a specific pattern, it creates a magnetic field which results in the material being magnetic.

In many materials, the magnetic behavior arises due to the alignment of magnetic domains, which are regions of atoms with magnetic moments aligned in the same direction. When many domains with aligned magnetic moments are present in a material, the material becomes magnetic.

The magnetic behavior of a material depends on the number of electrons and the arrangement of those electrons in the atoms. In particular, for an atom to have a magnetic moment, it must have unpaired electrons, meaning electrons that are not paired with another electron with the opposite spin. When these unpaired electrons in the atoms are aligned, they generate a magnetic moment. If all electrons are paired, there will not be a net magnetic moment, so the material will not be magnetic.

So, in summary, the magnetic behavior of a material is determined by the alignment of magnetic moments of atoms. When the magnetic moments of many atoms in a material align in the same direction, it creates a magnetic field, leading to a material being magnetic. This alignment is usually present in magnetic domains consisting of atoms with unpaired electrons.

Answer:

She applies 75N of force

Explanation:

F=ma

50=20(2.5)

F=30(2.5)

F=75 N

To perform a drug lookup to ensure that the new compound has been added to the computer system properly we have to select the new from the toolbar at the top of the screen

A computer system is a collection of computers, related hardware, and related software. The central processing unit (CPU), memory, input/output, and storage devices are the four main components of a computer system. To produce the desired result, all of these parts operate in concert as a single unit.

Selecting the new from the toolbar at the top of the screen will allow us to run a drug lookup to make sure the new compound has been properly added to the computer system.

Therefore the correct answer is the option C

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Answer:

Each connection requires 50 centimeters of wire, which is equal to 0.5 meters of wire. Therefore, for eight connections, the electrician would need:

8 * 0.5 = 4 meters of wire

Therefore, the correct answer is option D, 4 m.

:

For the  pendulum taken to the moon, The frequency change that would occur is mathematically given as

\(\frac{Fmoon}{Fearth}=0.408\)

Generally, the equation for the Time period  is mathematically given as

\(T=2\pi\sqrt{L/g}\)

Therefore

\(\frac{Fmoon}{Fearth}=\frac{\sqrt{g/6L}}{\sqrt{g/6L}}\\\\\frac{Fmoon}{Fearth}=\sqrt{1/6}\)

\(\frac{Fmoon}{Fearth}=0.408\)

In conclusion, The frequency change

\(\frac{Fmoon}{Fearth}=0.408\)

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Answer:

.408

Explanation:

Your acceleration varies as you travel to the store. Your total speed can change over time; sometimes it can go up, sometimes down. Because doing so would mean you would keep speeding up and eventually pass the store, constant acceleration doesn't happen. In physics, even a decrease in speed is a form of acceleration. When you arrive at it, we can determine how much your average speed was and examine the impact that varying acceleration would have had on it.

According to estimates of the power needed to ride, cyclists deliver about 150 W when riding level terrain, but this increases to about 250 W when cycling up hills. On a flat surface, the average acceleration is 0.231 m/s2, and the acceleration phase has an average duration of 26 seconds. On average, 120 W of power is output during this phase.

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Answer: 10,500 kg m/s

Explanation: (1,000 + 50)(10)

Answer:

\(Speed = 87 km/h\)

Explanation:

Given

Total Distance = 720km

Average Speed = 90km/h

Average Speed (285km) = 95km/h

Required

Determine the average speed for the rest of the journey

First we need to determine the time taken to complete the journey using

\(Speed = \frac{Distance}{Time}\)

\(90 = \frac{720}{Time_1}\)

Make Time the subject of formula

\(Time_1 = \frac{720}{90}\)

\(Time_1 = 8 hour\)

Next, we determine the time taken to complete 285km of the journey using

\(Speed = \frac{Distance}{Time}\)

\(95 = \frac{285}{Time_2}\)

Make Time the subject of formula

\(Time_2 = \frac{285}{95}\)

\(Time_2 = 3 hours\)

The difference between these calculated times is the time taken to complete the rest of the journey

\(Time = Time_1 - Time_2\)

\(Time = 8\ hour - 3\ hour\)

\(Time = 5\ hour\)

Also, we need to calculate the distance of the rest of the journey

\(Distance = 720\ km - 285\ km\)

\(Distance = 435\ km\)

The average speed can then be calculated;

\(Speed = \frac{Distance}{Time}\)

\(Speed = \frac{435}{5}\)

\(Speed = 87 km/h\)

Hence, the average speed of the rest of the journey is 87km/h

Answer:

The car goes 100 metres in the east direction,in 4 seconds.

The car goes 50 metres in the west direction,in 1 second.

to find :
The average velocity and average speed of the car.

Explanation:

Speed is a scalar unit which means, direction is not necessary in this case. We can simply divide the total covered distance by the total taken time,in order to calculate the average speed.

So, average speed = (100 m + 50 m)/(4sec + 1sec) = (150m/5sec) = 30m/s

Now, velocity is a vector unit,which means direction is necessary in this case. We need to find the displacement (distance between starting point and ending point of the journey) and we need to divide the displacement with total taken time.

Here,east and west are opposite directions.

So, displacement = 100 m - 50 m = 50 m in east direction

Average velocity = 50m/5sec = 10m/sec

Hence,the average speed is 30m/s and the average velocity is 10m/sec.

Welcome.

Answer:

\(thank \: you\)

Answer:

1.25

Explanation:

acceleration = velocity÷time

Answer:

Its acceleration is 1.25 meters/second2

Explanation:

The car's average acceleration would be 1.25m/s^2 or 1.25meters/second/second. That looks to be the fourth one you've listed.