the car is moving on a straight road at a speed of 15m / s. The driver of the car starts overtaking with an acceleration of 2m / s². Determine how fast the car has reached after 6s from the start of overtaking. The speed at uniformly accelerated rectilinear motion with the initial speed is calculated by the formula v = vo + at.​

Answer:

845 m

Explanation:

Given in the y direction:

v₀ = 0 m/s

a = 10 m/s²

t = 13 s

Find: Δy

Δy = v₀ t + ½ at²

Δy = (0 m/s) (13 s) + ½ (10 m/s²) (13 s)²

Δy = 845 m

Due to the fact that they go against one or more of the aforementioned restrictions, options a), b), and c) are not permitted groups of quantum numbers.

An allowed set of quantum numbers must follow certain rules that govern the behavior of electrons in atoms. The principal quantum number (n) indicates the energy level of the electron, the angular momentum quantum number (l) indicates the shape of the orbital, and the magnetic quantum number (ml) indicates the orientation of the orbital in space. The values of n, l, and ml must all be integers, and they must also satisfy certain constraints.

Of the options given, only option d) n = 3, l = 2, ml = -1 is an allowed set of quantum numbers. This is because n = 3 indicates the electron is in the third energy level, l = 2 indicates that it is in a d orbital (since l = 0 corresponds to an s orbital, l = 1 corresponds to a p orbital, and so on), and ml = -1 indicates that the orbital is oriented in a specific direction in space.

Options a), b), and c) are not allowed sets of quantum numbers because they violate one or more of the constraints mentioned above.

To learn more about angular momentum refer to:

brainly.com/question/29716949

#SPJ4

Answer:

Relative to Carlos the Whataburger is moving at 0 speed.

Explanation:

Carlos speed, \(V_A\) = 35 m/s

speed of another car, \(V_B\) = -25 m/s

The speed of the Whataburger, \(V_w\)  = 35 m/s since it is in the same car as Carlos.

The relative of the Whataburger to Carlos is given as;

\(V = V_A - W_w\\\\V = 35 \ m/s - 35 \ m/s\\V = 0\)

Therefore, Relative to Carlos the Whataburger is moving at 0 speed.

The scientist responsible for the modern periodic table that we study today is Dmitri Mendeleev. Mendeleev was a Russian chemist who lived in the 19th century. He is often credited as the creator of the periodic table because of his significant contributions to its development.

In the mid-1860s, Mendeleev was working on organizing the known elements based on their chemical properties. He noticed that there was a recurring pattern in the properties of the elements when they were arranged in order of increasing atomic mass. Mendeleev proposed that these elements could be arranged in a table format, where elements with similar properties would fall into the same groups or columns.

Mendeleev's breakthrough came when he realized that there were some gaps or missing elements in his proposed table. Instead of discarding these gaps, he made a bold move and predicted the existence and properties of the yet-to-be-discovered elements. He left spaces for these elements, specifying their properties based on the patterns he observed.

What made Mendeleev's periodic table significant was that it not only organized the elements based on their atomic masses but also successfully predicted the properties of the missing elements. Over time, his predictions were proven correct when the missing elements were discovered and found to match Mendeleev's descriptions.

Mendeleev's periodic table formed the foundation for the modern periodic table that we use today. Although there have been some modifications and improvements to the table since Mendeleev's time, his work laid the groundwork for understanding the periodicity and organizing the elements based on their properties. His contributions to the field of chemistry and the development of the periodic table have had a lasting impact on our understanding of the elements and their relationships.

To know more about Scientist visit-

brainly.com/question/30273660

#SPJ11

The mass of water in the rectangular vessel can be calculated by multiplying the volume (400 cm³) by the density of water (1000 kg/m³), resulting in a mass of 0.4 kg.

To calculate the mass of the water in the rectangular vessel, we can use the formula:

Mass = Density × Volume

Given that the density of water is 1000 kg/m³ and the volume of the vessel is 400 cm³, we need to convert the volume to cubic meters before calculating the mass.

1 cm³ = 1 × 10^(-6) m³

Volume = 400 cm³ × (1 × 10^(-6) m³/cm³)

= 0.0004 m³

Now we can calculate the mass:

Mass = 1000 kg/m³ × 0.0004 m³

= 0.4 kg

Therefore, the mass of the water in the rectangular vessel is 0.4 kg.

It's important to note that the given information about the square cross-sectional area of length 10 cm is not directly used in this calculation since the volume is already provided. The square cross-sectional area is relevant to determine the volume if it was not given, but in this case, the volume is explicitly given as 400 cm³.

Know more about mass here:

https://brainly.com/question/86444

#SPJ8

Answer:

George Washington

Explanation:

Answer:

well for me

Explanation:

It was George Washington

According to Newton's law of cooling, The formula that models the cooling of the turkey is T(t) = (165 - 75) * e^(k * t) + 75. The temperature of the turkey 50 minutes after it leaves the oven will be approximately 118°F.

(a) The formula that models the cooling of the turkey is T(t) = (165 - 75) * e^(k * t) + 75.

In this case, the temperature difference between the turkey and the room, when it came out of the oven, is A = 165 - 75 = 90°F, and Ts (the temperature of the room) is 75°F. By substituting these values into the equation T(t) = A * e^(k * t) + Ts, we get T(t) = 90 * e^(k * t) + 75.

To find the value of k, we can use the information that when t = 30 minutes, T(30) = 145°F. Substituting these values into the equation and solving for k, we have 145 = 90 * e^(k * 30) + 75. Rearranging and solving, we find k ≈ -0.0207.

(b) The temperature of the turkey 50 minutes after it leaves the oven will be approximately 118°F.

To calculate the temperature at t = 50 minutes, we can use the formula T(t) = 90 * e^(-0.0207 * t) + 75. Substituting t = 50, we have T(50) = 90 * e^(-0.0207 * 50) + 75. Evaluating this expression, we find T(50) ≈ 118°F.

(c) It will take approximately 145 minutes for the turkey to cool to 110°F.

To determine the time it takes for the turkey to reach a temperature of 110°F, we can rearrange the equation T(t) = 90 * e^(-0.0207 * t) + 75 and solve for t. So, 110 = 90 * e^(-0.0207 * t) + 75. Solving this equation, we find t ≈ 145 minutes.

To learn more about Newton's law of cooling click here

https://brainly.com/question/30591664

#SPJ11

Answer:

50 m in 10 sec….divide 50 by 10 to convert to metres per second = 5 m/s. Then multiply by 3.6 (3600 seconds in an hour divided by 1000) to convert to kilometres per hour =18 m/s. To convert to mph divide by 1.609 =11.18 mph.

Explanation:

Answer:

5 meters per second

Explanation:

1) Set up a proportion.

\(\frac{50}{10}\) = \(\frac{x}{1}\)

2) Solve the proportion.

x = 5 because 50 ÷ 10 is 5.

When electrons are accelerated through a potential difference, they gain kinetic energy. In this case, the electrons are accelerated through a potential difference of 890 kV, resulting in a kinetic energy of \(8.90 × 10^5 eV.\)To understand this concept, let's break it down step-by-step:

1. Potential difference: This refers to the voltage applied across the acceleration region. In this case, it is 890 kV, where "kV" stands for kilovolts.

2. Kinetic energy: This is the energy associated with the motion of an object. In this case, the electrons gain a kinetic energy of\(8.90 × 10^5 eV\), where "eV" stands for electron volts.

3. Conversion: To convert the potential difference from kilovolts to electron volts, we multiply by the elementary charge of an electron, which is approximately\(1.6 × 10^-19 C\) (coulombs). So, \(890 kV * (1.6 × 10^-19 C/eV) = 1.424 × 10^-14 eV.\)

4. Conclusion: The electrons gain a kinetic energy of \(1.424 × 10^-14 eV\)when accelerated through a potential difference of 890 kV.

In summary, the potential difference of 890 kV accelerates electrons, resulting in a kinetic energy of\(8.90 × 10^5 eV.\)

Know more about potential difference

https://brainly.com/question/23716417

#SPJ11

When entering traffic after being parked at a curb, you should proceed with caution, yield to oncoming traffic, and merge smoothly into the flow of vehicles.

When entering traffic from a parked position at a curb, it is important to follow certain steps to ensure a safe and smooth transition. Here is a step-by-step explanation:

1. Check for traffic: Before entering the flow of traffic, look in both directions to ensure there is a safe gap in the traffic.

2. Signal your intention: Activate your vehicle's turn signal to indicate your intention to merge into the traffic.

3. Yield to oncoming traffic: If there are vehicles approaching, yield the right of way and wait for a safe gap to merge into the traffic. It is important to give way to vehicles already on the road.

4. Accelerate smoothly: Once you have found a suitable gap, accelerate smoothly and merge into the flow of traffic. Be mindful of the speed and spacing of the vehicles around you.

5. Adjust your speed: Gradually adjust your speed to match the flow of traffic, ensuring that you are not impeding the normal movement of vehicles.

By following these steps, you can safely enter traffic after being parked at a curb, allowing for a seamless transition into the flow of vehicles.

To know more about traffic click here:

https://brainly.com/question/32166302

#SPJ11

If a system has 46.5 j of heat added to it, and the system does 75.5 j of work on its surroundings. 29 j is the change in the internal energy of the system.

Internal energy refers to the energy that exists within the system. It is represented by the letter "U" in English.

Thermal energy is another name for internal energy. It is the energy of a substance as a result of the kinetic and potential energies connected to the ad hoc motion of all the constituent particles.

Internal energy, which is measured in KJ or Joule, is the energy attributed to the chaotic arrangement or random motion of particles within the system. Using the formula for internal energy, we can calculate the same.

The difference between the heat flow in a system and the work done by or on the system (PV) equals the change in internal energy, and the change in internal energy formula aids in calculating the same.

Energy Equation within the energy of the universe is constant, in accordance with the basic law of thermodynamics.

Additionally, the sum of the work done and the heat transported is equal to the change in a system's internal energy.

Additionally, the sum of the change in the system's internal energy and the work performed by the PV system equals the heat added or flown.

The Change in Internal Energy Formula is:

                    ΔU  =  Q  +  W

Here,

U =  the total change in internal energy within the system

Q =  the heat exchanged between a system and its surroundings (outside the system)

W  =  work done by or on the system

                 =  46.5 - 75.5

                 = 29j

To know more about internal energy:

https://brainly.com/question/11742607

#SPJ4

A dentist wants a small mirror that when placed 2cm from a tooth, will produce 3× upright image. What kind of mirror must be used and what must its focal length be the correct answer is B. concave mirror, 1.5cm

To determine the type of mirror and its focal length needed to produce a 3× upright image when placed 2 cm from a tooth, we can use the mirror equation:

1/f = 1/di + 1/do

Where f is the focal length of the mirror, di is the image distance, and do is the object distance.

In this case, the object distance (do) is given as 2 cm, and the magnification (M) is 3×, which means the image distance (di) will be three times the object distance.

Using the magnification formula:

M = -di/do

We can find that di = -3 × do.

Substituting these values into the mirror equation, we have:

1/f = 1/(-3 × do) + 1/do

Simplifying this equation, we get:

1/f = -2/do

To obtain a positive focal length (indicating a concave mirror), the object distance (do) must be negative. Therefore, a concave mirror must be used.

Among the given options, the only concave mirror with a focal length that satisfies the equation is option B: concave mirror, 1.5 cm. Therefore, the correct answer is B.

Learn more about focal length here:

https://brainly.com/question/31755962

#SPJ11

The energy expended by the pitcher on the baseball for the acceleration is 7812 J.

To find the work done on the baseball, we need to use the work-energy principle, which states that the work done on an object is equal to the change in its kinetic energy. In this case, we can assume that the initial kinetic energy of the baseball is zero, since it is at rest before the pitcher throws it. The final kinetic energy of the baseball can be calculated using the formula:

KE = (1/2)mv^2

where m is the mass of the baseball (0.25 kg), and v is its final velocity (250 m/s). Substituting these values, we get:

KE = (1/2)(0.25 kg)(250 m/s)^2

= 7812.5 J

So the final kinetic energy of the baseball is 7812.5 J. To find the work done in stopping the baseball after it has traveled 30 meters, we need to use the work-energy principle again. Since the final velocity of the baseball is zero, its final kinetic energy is also zero. Therefore, the work done on the baseball to bring it to a stop is equal to its initial kinetic energy of 7812.5 J.

We can use the work formula:

W = Fd

where W is the work done, F is the force applied, and d is the distance over which the force is applied. In this case, the force that stops the baseball is the force of friction between the baseball and the air. We can assume that this force is constant over the 30-meter distance, so we can calculate the work done as:

W = Fd = KE = 7812.5 J

Rearranging the formula, we get:

F = W/d

= 7812.5 J / 30 m

= 260.4 N

So the force of friction on the baseball is 260.4 N. Now we can use the formula for work again to find the energy expended by the pitcher:

W = Fd

= (260.4 N)(30 m)

= 7812 J

So the energy expended by the pitcher is 7812 J.

Learn more about kinetic energy here https://brainly.com/question/8101588

#SPJ1

Answer:

Where is the resistance value?

Question is incomplete

Answer:

true

Explanation:

Answer:

true

Explanation:

Answer:

The potential energy (P.E.) stored in an elastic spring is equal to the work done in compressing or stretching the spring.

When a spring is compressed or stretched, the force required to do so is given by Hooke's law, which states that the force F required to compress or stretch a spring by an amount x is given by

F = kx, where k is the spring constant.

The work done in compressing or stretching a spring is equal to the force required to do so multiplied by the distance over which the force is applied.

In the case of a spring, this distance is equal to the amount x by which the spring is compressed or stretched.

Therefore, the work done in compressing or stretching a spring is given by

W = Fd = kx * x = kx^2.

The potential energy stored in the spring is equal to the work done to compress or stretch it.

Therefore, the potential energy of a spring that is compressed by an amount x is given by P.E. = W = kx^2.

Substituting kx^2 = 1/2 kx^2, we find that

P.E. = 1/2 kx^2.

This shows that the potential energy stored in an elastic spring is equal to 1/2 times the spring constant multiplied by the amount x by which the spring is compressed or stretched.

Explanation:

Answer:

As = 7.33 [m/s]

Explanation:

To solve this problem we must use the definition of the average speed, which is equal to the relationship between the distance over time.

As = x/t

where:

As = average speed [m/s]

x = distance = 132 [m]

t = time = 18 [s]

As = 132/18

As = 7.33 [m/s]

Virginia, who has been diagnosed with dissociative identity disorder, is not a likely candidate for Aaron Beck's form of cognitive therapy.

This type of therapy is typically used for individuals with depression, anxiety, and other mood disorders, rather than dissociative disorders. Dissociative identity disorder requires a specialized approach, such as cognitive-behavioral therapy or trauma-focused therapy, that focuses on addressing the underlying trauma and helping the individual integrate their different identities. It is important for therapists to assess each client's unique needs and tailor their approach accordingly to provide the most effective treatment.


Aaron Beck's cognitive therapy is most effective for individuals dealing with depression, anxiety, and other mood disorders. While Virginia's diagnosis of dissociative identity disorder is a serious mental health issue, it is not the most likely candidate for cognitive therapy. Dissociative identity disorder requires a different therapeutic approach, often involving trauma-focused therapy and the integration of multiple identities. Cognitive therapy would be more suitable for a client dealing with a mood disorder, such as depression or anxiety.

To know more about dissociative identity disorder, visit:

https://brainly.com/question/20430933

#SPJ11

Answer: the air above a wildfire

Explanation:

First part of question is: The diagram shows currents that form as water is heated.

When water is being heated from below, convection currents are used. This happens when the molecules at the bottom are heated thus giving them energy and enabling them rise to the surface. The colder water at the surface will therefore sink to the bottom where is is heated making it rise as well and the process is repeated.

When a wildfire is ignited, the concept is the same. The air above the wildfire is the water in this scenario. It is heated at the bottom and rises thereby forcing the air above to come down and be heated as well. Both situations uses convectional currents.  

Answer:

The air above a wildfire

Explanation:

Answer:

Explanation:

Given,

Mass ( m ) = 10 kg

Force ( f ) = 2 Newtons

Acceleration ( a ) = ?

Now, let's find the acceleration :

We know that,

\(f = ma\)

Plug the values

\(2 = 10a\)

Swap the sides of the equation

\(10a = 2\)

Divide both sides of the equation by 10

\( \frac{10a}{10} = \frac{2}{10} \)

Calculate

\(a = 0.2 \: {metre \: per \: second \: }^{2} \)

Hope this helps...

Best regards!!

a) Sketch the plate shape: we get a shape that resembles a trapezoid.

The plate shape is determined by the lines y = 2 - x² and y = 2x - 1. To sketch the plate shape, we can plot these two lines and shade the region in between them. The intersection points of the lines are found by solving the equations simultaneously:

2 - x² = 2x - 1

Simplifying, we get:

x² + 2x - 3 = 0

Factoring, we have:

(x - 1)(x + 3) = 0

So, x = 1 and x = -3. Plugging these values into the equations of the lines, we find the corresponding y-values:

For x = 1:

y = 2 - (1)² = 1

For x = -3:

y = 2(-3) - 1 = -7

Plotting these points and connecting them with the lines, we get a shape that resembles a trapezoid.

b) Total charge through the double integral:

To find the total charge Q, we need to integrate the charge density p(x, y) over the entire plate. We can express this as a double integral:

Q = ∬ p(x, y) dA

c) Reducing the double integral to repeated integrals: The limits of integration for x are the values of x that define the boundaries of the plate shape, which are -3 to 1.

Since the plate shape is described by the lines y = 2 - x² and y = 2x - 1, we can rewrite the double integral as a repeated integral by integrating with respect to x and y separately:

Q = ∫∫ p(x, y) dy dx

The limits of integration for y are from the lower curve y = 2 - x² to the upper curve y = 2x - 1. The limits of integration for x are the values of x that define the boundaries of the plate shape, which are -3 to 1.

d) Calculating the integral: The total charge Q of the thin plate is approximately 12.4 mC.

Now, we can evaluate the double integral to find the total charge Q:

Q = ∫(-3 to 1) ∫(2 - x² to 2x - 1) x²y dy dx

Performing the inner integral with respect to y first, we get:

Q = ∫(-3 to 1) [x²(y²/2 - y)] from 2 - x² to 2x - 1 dx

Simplifying the inner integral, we have:

Q = ∫(-3 to 1) [(x²/2)(2 - x²) - x²(2x - 1)] dx

Expanding and simplifying further, we get:

Q = ∫(-3 to 1) (x² - x⁴/2 - 4x³ + 2x²) dx

Integrating term by term, we have:

Q = [x³/3 - x⁵/10 - x⁴ + 2x³/3] from -3 to 1

Evaluating the integral at the limits, we get:

Q ≈ 12.4 mC (rounded to five significant figures)

Therefore, the total charge Q of the thin plate is approximately 12.4 mC.

Learn more about charge density here:

brainly.com/question/17438818

#SPJ11.

Answer:

0.07

Explanation:

Huge Brain

Coefficient of friction between the car and the ground will be 0.07.    

    Given in the question,

Force applied on the car by which the car is accelerated,

F = ma

  = 3000 × 3

  = 9000 N

Force \(F_k\) to overcome the friction = 11000 - 9000

                                                         = 2000 N

Gravitational force F' on the car = mg

                                                       = 3000(9.8)

                                                       = 29400 N

Since, \(\mu_k=\frac{F_k}{F'}\)

                \(=\frac{2000}{29400}\)

                \(=0.068\)

                ≈ 0.07

   Therefore, coefficient of friction between the car and the ground will be 0.07.    

Learn more,

https://brainly.com/question/17412150

Answer: Hello There!...............

You decrease the kinetic energy by either stopping the object and let it rest (which would give it potential energy) or changeing the slope.

Explanation:

Mark me brainest please. Hope this helps. Anna ♥

Depending on the sort of energy involved, you can use a variety of techniques to reduce the quantity of energy an object contains. To slow motion in mechanical systems, you can add friction or resistance, which turns kinetic energy into heat.

When dealing with thermal energy, you can place the object in a cooler environment, which will enable it to transmit heat and cool down. It is possible to lessen an object's potential energy by changing its height or location within a gravitational field. Reactions that release energy can dissipate chemical energy. These strategies essentially entail aiding energy transfer or conversion to a less energetic state, hence lowering the object's overall energy content.

To know more about potential energy, here

brainly.com/question/18741280

#SPJ3

A sonar echo returns to a submarine 2.30 s after being emitted. The distance to the object creating the echo is 1702m

Let's understand the solution in detail,

The speed of sound in water is equal to 1480m/s

The time the waves take to hit the object and return back to the receiver is 2.30s

As we already know distance = speed x time

So the distance of the object = (speed x time)/2

We are dividing the distance by two because sound travels the same distance while reaching the object from the emitter and reaching back to the receiver after getting reflected by the object.

Therefore the distance comes out as \(\frac{1480 x 2.30}{2}\)

which is equal to 1702 meters

Learn more about sonar here

brainly.com/question/4955683

#SPJ4

Answer:

if you mean the regions during slavery, North, but if in general, East. (think East Coast)

When the Earth was primarily liquid, it separated into layers. The density of Earth's different layers may be predicted. For instance, it is assumed that the outermost layer, or crust, is less dense than the inner layers.

The Earth's crust is mostly composed of silicates (such as quartz, feldspar, and mica) and rocks, which are less dense than the mantle, core, or outer core.

The mantle is composed of solid rock, which is denser than the Earth's crust.

The core is the most dense layer, and it is composed of a liquid outer core and a solid inner core.

Most of the Earth's layers are composed of different types of rock and minerals.

The layers were formed from the molten material that cooled and solidified.

The Earth's layers are divided into four groups, or spheres, that represent different levels of density.

The lithosphere is the outermost layer, which includes the crust and upper mantle.

The asthenosphere is the soft layer beneath the lithosphere.

The mantle is a solid layer that surrounds the core.

The core is the Earth's central layer, consisting of a liquid outer core and a solid inner core.

For more questions on density

https://brainly.com/question/28853889

#SPJ8

Answer:

HAHAHAH

Explanation:

a)  The weight of the wagon can be -249.6 N (negative because the force is acting downwards)

b) The x component of the applied force is 410cos(38°) ≈ 318.7 N and the y component is 410sin(38°) ≈ 252.6 N.

c) The normal force acting on the wagon is 436.5 N, which is greater than the wagon's weight. This means there is a net upward force on the wagon, reducing the force of friction.

d), The acceleration of the wagon in the x direction is\(6.505 m/s^2.\)

a) The weight of the wagon can be calculated as:

Weight = mass x gravity

= 45 kg x 9.8 \(m/s^2\)

= 441 N

The angle of the applied force with the horizontal is 380, so the x and y components of the applied force can be calculated as:

F_x = F_applied * cos(380)

= 410 N * cos(380)

= 327.2 N

F_y = F_applied * sin(380)

= 410 N * sin(380)

= -249.6 N (negative because the force is acting downwards)

b) The normal force, N, acting on the wagon can be calculated as:

N = Weight + F_y

= 441 N - 249.6 N

= 191.4 N

The normal force is less than the wagon's weight, which means that the wagon is experiencing a net force downwards. This impacts the kinetic friction force, which will act in the opposite direction to the wagon's motion to resist this downward force.

c) The coefficient of kinetic friction, μ_k, is given as 0.18. The force of kinetic friction, F_k, can be calculated as:

F_k = μ_k * N

= 0.18 * 191.4 N

= 34.452 N

The acceleration of the wagon in the x direction, a_x, can be calculated using Newton's second law, which states that:

ΣF_x = m*a_x

d) The only force in the x direction is the applied force, so we have:

F_x - F_k = m*a_x

Substituting the values, we get:

327.2 N - 34.452 N = 45 kg * a_x

Simplifying:

292.748 N = 45 kg * a_x

a_x = \(6.505 m/s^2\)

Therefore, the acceleration of the wagon in the x direction is\(6.505 m/s^2.\)

Learn more about Newton's second law

https://brainly.com/question/13447525

#SPJ4

Answer:

So 55 Newtons are needed.

Answer:

80 N

Explanation:

mass (m) = 20kg

acceleration (a) = 4m/s^2

Force (F) = ?

.°. F = ma

= 20 × 4 = 80

.°. F = 80 N

Thus, The Force is needed to accelerate a 20 kg mass at a rate of 4 m/s^2 is 80 N

-TheUnknownScientist