need this answer in 30 minutes, What volume of ice is created from 200 cm3 of water?

The integers 0, 1, 2, 3, and so on are the three quantum numbers (n, l, and m) that describe an orbital. There can be no zero for the main quantum number (n). Therefore, the permitted values for n are 1, 2, 3, 4, and so forth. Any integer between 0 and n – 1 can serve as the angular quantum number (l).

To define, how often quantum numbers are needed?

The primary, azimuthal, magnetic, and rotational quantum numbers are the four types of quantum numbers. Quantum numbers provide the values of a quantum system's preserved quantities.

There are four separate quantum numbers that describe each electron in an atom. The fourth (m-s) defines the maximum number of electrons that can occupy the orbital, whereas the first three (n, l, and m) specify the specific orbital of interest.

Each electron in a system with multiple electrons has a different collection of four quantum numbers. As a result, the system He2 possesses four electrons and four different sets of the four quantum numbers.

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Explanation:

GIVEN DATA

since P(momentum)=Mass×Velocity

F = P2 -P1

t

F= Mv2-Mv1

t

F=M( v2-v1) ,(a=v2-v1)

t t

ANSWER EXPLANATION IN WORDS

That question is related to Newton's second law of motion, the question ask you to find the force it gives you a mass and a acceleration As we know that the SI unit of acceleration is newton per kilogram or metre per second square It is correct to write metre per second square instead of Newton Per kilogram because because all of them are the SI unit of acceleration so that is the answer we get 686 Newton by Force .

Marie Curie is not known for inventing the X-Ray. While she made significant contributions to the field of radiation and radioactivity, including the discovery of radium and polonium.

Her pioneering research in the study of radioactivity, the invention of the X-Ray was not one of her accomplishments. The X-Ray was discovered by Wilhelm Conrad Roentgen in 1895, while Marie Curie's groundbreaking work focused primarily on the study of radioactive elements. While she made significant contributions to the field of radioactivity, including the discovery of radium, and she utilized X-rays in her research, the invention of X-rays is credited to Wilhelm Conrad Roentgen. Marie Curie's groundbreaking achievements primarily revolve around her research on radioactivity and her discoveries of radium and polonium. Additionally, she became the first female professor at the University of Paris, making significant strides for women in academia

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(a) The power required for the car to climb the hill at steady speed is 15,555.56 W.

(b) The power required for the car to climb the hill at a changing speed is  19,444.44 W.

The power required for the car the move the incline is calculated as follows;

When the speed is steady, the average speed is calculated as;

v = ( 80km/h + 80 km/h) / 2 = 80 km/h = 22.22 m/s

P = Fv

where;

P = ( 700 N x 22.22 m/s )

P = 15,555.56 W

When the speed changes from 90 km/h to 110 km/h, the average speed is calculated as;

v = ( 90 km/h + 110 km/h ) / 2 = 100 km/h = 27.78 m/s

P = ( 700 N x 27,78 m/s )

P = 19,444.44 W

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Weight is defined as the force on an object that results from acceleration or gravity.

It can be calculated as:

W=mg

W= weight of an object (Newtons)

m = mass of the object (kilograms)

g = gravity (m/s^2)

given the information we can rearrange for m:

\(m=\frac{3920N}{9.8m/s^2}\)

\(m=400 kg\)

Answer:

Winter

Explanation:

Value analysis is a method used to evaluate the worth and effectiveness of an organization or project.

In the case of DEWA (Dubai Electricity & Water Authority), conducting a value analysis can provide insights into the overall value created by the organization. Here are some key points to consider in a value analysis of DEWA:

1. Service Quality: Evaluate the quality and reliability of the electricity and water services provided by DEWA. Assess factors such as uptime, response time, customer satisfaction, and the overall impact on the daily lives of residents and businesses in Dubai.

2. Cost Efficiency: Analyze the cost-effectiveness of DEWA's operations, including the generation, transmission, and distribution of electricity, as well as water production and distribution. Assess the efficiency of resource utilization, cost management practices, and the impact on consumer tariffs.

3. Sustainability: Evaluate DEWA's commitment to sustainable practices, such as renewable energy integration, water conservation efforts, and environmental stewardship. Assess the organization's contributions to reducing carbon emissions and promoting a greener future.

4. Innovation and Technology: Assess DEWA's adoption of innovative technologies, such as smart grids, advanced metering systems, and digital solutions. Evaluate the impact of these technologies on service delivery, efficiency, and customer experience.

5. Stakeholder Engagement: Analyze DEWA's relationships with stakeholders, including customers, suppliers, government entities, and the community. Assess the effectiveness of communication, collaboration, and the organization's contribution to social and economic development in Dubai.

By conducting a comprehensive value analysis of DEWA, stakeholders can gain a holistic understanding of the organization's performance, impact, and value proposition. This analysis can guide decision-making, identify areas for improvement, and support DEWA's ongoing efforts to provide reliable, sustainable, and affordable electricity and water services to the residents and businesses of Dubai.

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Answer: I think it's C.

Explanation:2D is only one side and 3D has length width and height

Answer:

3d

Explanation:

A. Drought conditions in Australia are expected to happen during El Niño.

El Niño is a normal cycle occurrence of a change in temperatures on the surfaces of the central equatorial, and east equatorial waters of the Pacific Ocean.

The result of this phenomenon which changes the weather condition taking place on the surfaces of the Pacific Ocean is a change in the climate temperatures around the globe, and also the development of weather changes that will affect different parts of the world in different ways.

Hence, drought conditions are a period of time when an area or region experiences below-normal precipitation and El Nino's normal cycle's occurrence changes temperature.

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Answer:

The answer is D.) 90

Explanation:

the electromagnetic wave is a transverse wave. the electric field makes an angle of 90° with the magnetic field. both these fields, in turn, make an angle of 90° with the direction of movement of the wave.

Some wave energy can be blanked through the other side in the process

known as Diffraction.

This usually occurs when a wave comes in contact with an obstacle. The

wave will bend itself around the corners of the obstacle so as to enable

its propagation to continue.

The obstructed wave can also pass through an aperture or hole if present

which is one of the important characteristics of waves.

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Answer:

F. The length of day would be longer

Explanation:

The Superposition is the term used to describe the combination of two or more waves. such as physics, engineering, and telecommunications, as it is often necessary to manipulate waves to achieve a desired outcome.

The Constructive interference occurs when the waves are in phase with each other, meaning their peaks and troughs line up perfectly. This results in a wave with a larger amplitude than either of the individual waves. Destructive interference occurs when the waves are out of phase with each other, meaning their peaks and troughs do not line up. This results in a wave with a smaller amplitude than either of the individual waves, or even no wave at all if the amplitudes are equal and opposite.  Therefore, the superposition of two waves can be either constructive or destructive depending on the phase relationship between them. This is an important concept in fields such as physics, engineering, and telecommunications, as it is often necessary to manipulate waves to achieve a desired outcome.

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Answer:

The Ray Population Increases

Explanation:

This happens because the great white eats bigger animals

Answer:

33 m/s

Explanation:

Answer:

8 hz

Explanation:

Wave Frequency = \(\frac{velocity}{wavelength}\)

\(F=\frac{3.6}{0.45} = 8\)

Answer:

W = 16875 J

Explanation:

We have,

Mass of a motorcycle together with its rider is 150 kg

It is required to find the work is needed to set its movement at 15 metre per second. The work done is given by :

\(W=\dfrac{1}{2}mv^2\)

Plugging all the values in above formula such that :

\(W=\dfrac{1}{2}\times 150\times (15)^2\\\\W=16875\ J\)

So, the work of 16875 J is needed.

The acceleration of a body can be calculated using the following equation:

s = ut + ½at²

Where;

400 = 0 × 20 + ½ × a × 20²

400 = 0 + 200a

a = 2m/s²

Force acting on the truck can be calculated by multiplying the mass of the truck by its acceleration as follows:

Force = 7000kg × 2m/s²

Force = 14,000N

Therefore;

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Answer:

10m/s

Explanation:

a = v- u/ t

=> v = at + u

= -2 × 5 + 20

= 10m/ s. ( 72 km/ h = 20 m/ s)

The rim of the wheel holds the tire beads in place.

The rim of a wheel plays a crucial role in holding the tire beads in place. The tire beads are the edges of the tire that grip onto the rim to secure the tire in position.

The rim typically consists of an outer circular structure that forms the edge of the wheel. It has a specific design and construction to provide a secure seating for the tire beads.

The rim features a flange or lip on both sides that provides a ledge for the tire beads to rest against. The inner diameter of the rim matches the outer diameter of the tire beads, ensuring a snug fit. When the tire is mounted onto the rim, the tire beads are pushed over the flange and locked into place.

The tight fit between the tire beads and the rim, along with the air pressure inside the tire, creates a strong bond that prevents the tire from slipping off the rim during rotation or when encountering bumps and forces while driving. This ensures the stability and safety of the tire while in use.

Overall, the rim's design and construction are specifically engineered to securely hold the tire beads in place, providing a reliable connection between the tire and the wheel.

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The final speed of the cart on the floor surface is 14.28m/sec if a grocery cart weight is  60.8N

Since, we need to find the final speed of the object and distance is given, it means that we can use third equation of motion, which is

v² - u² =2aS where v is the final velocity and u is the initial velocity,a is the acceleration of the object and S is the displacement of the object.

Since weight =60.8N,=W=mg

=>60.8=m×9.8

=>m=60.8/9.8

=>m=6.204kg

Now,we have mass and force,so we need to find the acceleration of cart which is given by the formula

=>F=ma

=>58.1N=6.204×a

=>a=(58.1)/6.204

=>a=9.364m/sec²

Now, we have acceleration and initial velocity of cart=0,so we can apply the third equation of motion

=>v²-0= 2×9.364×10.9

=>v²=204.155

=>v=√204.155

=>v=14.28m/sec

Hence, final speed is 14.28m/sec

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Answer:

C. Exothermic Reaction

Explanation:

Let's go through the choices

A. Combustion - Combustion is a highly exothermic / redox reaction which produces light and heat (i.e basically it bursts into flames). In the description, the only reaction is that it feels warm, hence this is not the answer.

B. Endothermic - Recall that endothermic reactions absorbs heat and thus cools the surroundings thereby making test tube feel cooler. this is obviously not the case so this is not the answer.

C. Exothermic - Recall that exothermic reactions releases heat and thus causes the surroundings thereby making the test tube feel warmer (or hotter in some cases). This describes our situation so THIS IS THE ANSWER.

D. Endergonic reactions require an input of energy from an external source that is adsorbed by the reaction (for example if heat was applied by an external source). In this case, there is no mention of additional energy sources. Hence this is probably not the answer.

From the calculation;

1) Melting point of indium = 171.4°

2) The resistance is 52.9 ohm

3) The power dissipated is  834 W

The temperature coefficient of resistance is a measure of how much the resistance of a material changes with temperature. It quantifies the relationship between the change in resistance and the change in temperature.

We have that;

R1/R2 = (1 + αt1)/(1 + αt2)

50/76.8 = (1 + (3.92 * \(10^-3\) * 20))/(1 +  (3.92 *\(10^-3\) * t))

0.65 = 1.0784/1 + 0.00392t

0.65(1 + 0.00392t) =  1.0784

0.65 + 0.0025t = 1.0784

t = 171.4°

P = \(V^2\)/R

R = \(V^2\)/P

R = \(230^2\)/1000

R = 52.9 ohm

The new power is;

P =\(210^2\)/52.9

P = 834 W

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What are the following statements?

Using the free body diagram, let's determine the scenario the diagram illustrates.

From the free body diagram, we can see that the weight is acting on the object while the tension will be the force which supports the object.

The tension in this case, helps hang the object while the weight is the product of the mass of the object and the force of gravity acting on the object.

Tension can be defined as the pulling force transmitted through a rope or string.

Therefore, the best scenario which is represented by the free body diagram is a sign board supported by two strings.

ANSWER:

A signboard supported by

A. It was transferred to heat due to friction. Friction caused it to be converted to heat. The moving bicycle's energy was converted to heat as it coasted to a stop.

Frictional force is the result of two surfaces contacting and gliding against one another. The factors listed below influence the frictional force: The major influences on these forces are surface roughness and the amount of pressure forcing them together.

Walter's fur and the ice are rubbing against one other, which is essentially friction, and this generates thermal energy. Fs is the friction force, hence the work caused by friction is W-Fs*d, which is equal to the thermal energy. There is energy loss when there is friction. Due to the work that frictional force has done and the energy wasted. Heat energy is released as a result of the frictional force.

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A) To find F_1, the volume of fluid flowing into the pipe per unit of time (volumetric flow rate), we can use the formula:
F_1 = A_1 * v_1.

B) To solve for v_2, v_2 = (A_1 * v_1) / A_2.

C) If you are shown a picture of streamlines in a flowing fluid, you can conclude that the "velocity" of the fluid is greater where the streamlines are closer together.

Part A
To find F_1, the volume of fluid flowing into the pipe per unit of time (volumetric flow rate), we can use the formula:
F_1 = A_1 * v_1

Here, A_1 is the cross-sectional area of the pipe at its entrance and v_1 is the speed of the fluid as it enters the pipe.

Part B
To find the velocity v_2 of the fluid flowing out of the right end of the pipe, we can use the continuity equation, which states that the volumetric flow rate is constant throughout the pipe:
A_1 * v_1 = A_2 * v_2

To solve for v_2, we can rearrange the equation:
v_2 = (A_1 * v_1) / A_2

Part C
If you are shown a picture of streamlines in a flowing fluid, you can conclude that the "velocity" of the fluid is greater where the streamlines are closer together.

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