SOMEONE PLEASE PLEASE HELP QUICK PICTURE INCLUDED

The final velocity of the car can be calculated using the formula: final velocity = initial velocity + acceleration * time. Plugging in the values you provided, we get: final velocity = 5.82 m/s + 2.35 m/s² * 3.25 s = 13.44 m/s.

Answer:

a

e(k) =  \frac{2a}{c}  *  sin (\frac{k*a}{2} )

b

G_{v} =  \frac{d e(k ) }{dk }  =  \frac{a^2}{c}  *  cos (\frac{k* a}{2} )

Explanation:

From the question we are told that

    The  velocity  of transverse waves in a crystal of atomic separation is  

                  \(b_y  = c \frac{sin (\frac{k*a}{2} )}{\frac{k*a}{2} }\)

Generally the dispersion relation is mathematically represented as

            \(e(k) =  b_y  *  k\)

=>    \(e(k) = c  \frac{sin(\frac{k*a}{2} ) }{ \frac{k*a}{2} }  *  k\)

=>    \(e(k) =   c *  \frac{sin (\frac{k_a}{2} )}{ \frac{a}{2} }\)

=>    \(e(k) =  \frac{2a}{c}  *  sin (\frac{k*a}{2} )\)

Generally the group velocity is mathematically represented as

          \(G_{v} =  \frac{d e(k ) }{dk }  =  \frac{a^2}{c}  *  cos (\frac{k* a}{2} ) \)

Answer:

Balance. Eyes. Elbow. Follow-Through

Explanation:

Answer:

you have to take 4 to 5 steps to do the step

Explanation:

The acceleration of the elevator is 9.8 m/s^2, which is equal to the acceleration due to gravity.

The change in the person's weight can be used to calculate the elevator's acceleration.

The change in weight is: 908.9 N - 494.7 N = 414.2 N

Since weight is equal to mass times acceleration (W = m * a), we can rearrange the equation to solve for acceleration:

a = W / m

Where m is the mass of the person, which can be calculated using the acceleration due to gravity:

m = W / g = 414.2 N / 9.8 m/s^2 = 42.3 kg

Substituting the mass into the equation for acceleration:

a = 414.2 N / 42.3 kg = 9.8 m/s^2

So the acceleration of the elevator is 9.8 m/s^2, which is equal to the acceleration due to gravity.

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Answer:

Solid at room temperature

Explanation

Since these elements are metals they must be said at room temperature

Answer:

Ionic bonds form when a nonmetal and a metal exchange electrons, while covalent bonds form when electrons are shared between two nonmetals. An ionic bond is a type of chemical bond formed through an electrostatic attraction between two oppositely charged ions.

Explanation:

Answer:

A B C

Explanation:just took the test

Answer:

Komal could have mixed up the labels on the vials.

Someone might have jiggled the table and made the water surface tension bubble spill over.

The water could actually have been saltwater instead of pure water.

Explanation:

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The efficiency of motor is 90.58%.To determine the efficiency of the motor, we need to calculate the input power and the output power, and then divide the output power by the input power

The input power can be calculated using the formula:

Input Power = Voltage × Current

Given that the voltage is 230 V and the current is 24 A, we have:

Input Power = 230 V × 24 A

Input Power = 5520 W (or 5.52 kW)

The output power of the motor is given as 5 kW (since it is a 5 kW motor).

Now, we can calculate the efficiency:

Efficiency = (Output Power / Input Power) × 100%

Efficiency = (5 kW / 5.52 kW) × 100%

Efficiency ≈ 90.58%

Therefore, the efficiency of this motor is approximately 90.58%.

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Answer:

equator

Explanation:

in south & north pole you could have 20+ hours daylight or night, everyday!

In order to determine which of the two solutions of salt water is more concentrated, we need to first understand what concentration means and how it is measured. Concentration refers to the amount of solute dissolved in a given amount of solvent. It is typically measured in units of mass per volume, such as grams per liter (g/L) or milligrams per milliliter (mg/mL). so The second solution is more concentrated

When comparing the concentration of two solutions, the one with a higher concentration has more solute dissolved in the same amount of solvent. Therefore, in the picture provided, we can determine which solution is more concentrated by looking at the relative amounts of solute in each solution.If the solutions have the same concentration, then they must have the same amount of solute dissolved in the same amount of solvent. From the picture, we can see that both solutions are in the same size container and have the same amount of solvent (water) in them. Therefore, we can conclude that they have the same concentration of salt.The amount of solute dissolved in a solution can be increased by either adding more solute or by reducing the amount of solvent. If we were to add more salt to one of the solutions, we would increase the concentration of that solution. Alternatively, if we were to evaporate some of the water from one of the solutions, we would reduce the amount of solvent and increase the concentration of that solution.

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(1) The harmonic number for the mode of oscillation is 3.

(2) The pitch (frequency) of the sound is 580 Hz

(3) The level of the water inside the vertical pipe is approximately 0.1 m.

The harmonic number for the mode of oscillation illustrated for the closed pipe is 3.

The pitch (frequency) of the sound is calculated from third harmonic formula;

f = 3v/4L

where;

f = (3 x 340) / (4 x 0.44)

f = 579.55 Hz = 580 Hz

wave equation for first harmonic of a closed pipe is given as

f  = v/(4L)

251.1  = 340/(4L)

4L = 340/251.1

4L = 1.35

L = 1.35/4

L = 0.34 m

level of water = 0.44 m - 0.34 m = 0.1 m

Thus, the level of the water inside the vertical pipe is 0.1 m.

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The complete question is below:

1. The vertical axis is the maximum displacement of the air, and the horizontal axis is along the length of the pipe. What is the harmonic number for the mode of oscillation illustrated?

2. The length of the pipe is 0.440 m. What is the pitch (frequency) of the sound? Use 340 m/s for the speed of sound in air.

3. The pipe is now held vertically, and a small amount of water is poured inside the pipe. The first harmonic frequency is then measured to be 251.1 Hz. Measuring from the bottom of the pipe, what is the level of the water?

Answer:

The correct answer is d.

Theories are constructed after there is numerous data collected during the experiment.

Explanation:

hope it helps

A region where rocky chunks orbit between Mars and Jupiter.

The asteroid belt is a region located between the orbits of Mars and Jupiter where many small, rocky objects (asteroids) orbit the sun. Here are some key points about the asteroid belt:

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answer.

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A pendulum oscillates due to restoring force arising from the force of gravity. Therefore, option (B) is correct.

A pendulum can be described as a weight suspended from a pivot so that it can swing freely. When a pendulum is moved sideways from its equilibrium position. The pendulum is subject to a restoring force due to gravity that will accelerate.

When the pendulum is released, the restoring force acting on the mass causes oscillation about the equilibrium position, swinging back and forth.

The period can be defined as the time for one complete cycle, a left swing and a right swing. The period of the pendulum depends on the length of the pendulum, the amplitude, and the width of the pendulum's swing.

Therefore, a pendulum oscillates due to restoring force arising from gravity.

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Answer:

gravitational lensing

Explanation:

Answer:

Gravitational lensing

Explanation:

The diameter of the smaller end of the pipe is approximately 0.78 meters.

To determine the diameter of the smaller end of the pipe, we can use the principle of conservation of mass. According to this principle, the mass flow rate of water should remain constant throughout the pipe.

The mass flow rate is given by the equation:
Mass flow rate = density of water * cross-sectional area * velocity

Since the density of the water remains constant, we can write:
Cross-sectional area1 * velocity1 = Cross-sectional area2 * velocity2

Given that the velocity1 is 13 m/s, the diameter1 is 1.2 m, and the velocity2 is 30 m/s, we can solve for the diameter2 using the equation:
(pi * (diameter1/2)^2) * velocity1 = (pi * (diameter2/2)^2) * velocity2

Simplifying the equation:
(1.2/2)^2 * 13 = (diameter2/2)^2 * 30

Calculating the equation:
(0.6)^2 * 13 = (diameter2/2)^2 * 30

0.36 * 13 = (diameter2/2)^2 * 30

4.68 = (diameter2/2)^2 * 30

Dividing both sides by 30:
0.156 = (diameter2/2)^2

Taking the square root of both sides:
0.39 = diameter2/2

Multiplying both sides by 2:
0.78 = diameter2

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In order to find an expression for z, we can use the sine and cosine relations of the angle 50°.

The sine is equal to the opposite leg over the hypotenuse, and the cosine is equal to the adjacent leg over the hypotenuse.

So we have:

Therefore the correct option is the second one.

Explanation:

Joule, unit of work or energy in the International System of Units (SI); it is equal to the work done by a force of one newton acting through one metre. ... In electrical terms, the joule equals one watt-second—i.e., the energy released in one second by a current of one ampere through a resistance of one ohm.

The minimum mass required to be placed on the 0.00 cm mark of the meter stick to maintain equilibrium is 0.120 kg.

To maintain equilibrium, the torques acting on the meter stick must balance each other. The torque is given by the formula:

τ = r * F * sin(θ)

where τ is the torque, r is the distance from the pivot point to the point where the force is applied, F is the force applied, and θ is the angle between the force vector and the lever arm.

In this case, the meter stick is in equilibrium when the torques on both sides of the pivot point cancel each other out. The torque due to the weight of the meter stick itself is acting at the center of mass of the meter stick, which is at the 50.0 cm mark.

Let's denote the mass to be placed on the 0.00 cm mark as M. The torque due to the weight of M can be calculated as:

τ_M = r_M * F_M * sin(θ)

where r_M is the distance from the pivot point to the 0.00 cm mark (which is 30.0 cm), F_M is the weight of M, and θ is the angle between the weight vector and the lever arm.

Since the system is in equilibrium, the torques on both sides of the pivot point must be equal:

τ_M = τ_stick

r_M * F_M * sin(θ) = r_stick * F_stick * sin(θ)

Substituting the given values:

30.0 cm * F_M = 20.0 cm * (0.0400 kg * 9.8 m/s^2)

Solving for F_M:

F_M = (20.0 cm / 30.0 cm) * (0.0400 kg * 9.8 m/s^2)

F_M = 0.0264 kg * 9.8 m/s^2

F_M = 0.25872 N

Finally, we can convert the force into mass using the formula:

F = m * g

0.25872 N = M * 9.8 m/s^2

M = 0.0264 kg

Therefore, the minimum mass required to be placed on the 0.00 cm mark of the meter stick to maintain equilibrium is 0.120 kg.

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The probability of finding the electron in the region between x = 0.048 nm and x = 0.072 nm is p=0.024.

Strength/ force gained by the motion or by series of events is known as momentum.

Wave function for an electron in one-dimensional infinite square well potential is: ψ(x) = sqrt(2/L) * sin(nπx/L)

L is width of the well, n is quantum number of the energy eigenstate and x is position of the electron.

The probability of finding the electron between x = 0.048 nm and x = 0.072 nm is:

P = ∫ψ(x)² dx, from x = 0.048 nm to x = 0.072 nm

P = ∫(2/L) * sin²(nπx/L) dx, from x = 0.048 nm to x = 0.072 nm

P = (1/L) * ∫(1/2) * (1 - cos(2nπx/L)) dx, from x = 0.048 nm to x = 0.072 nm

P = (1/L) * [(1/2) * (x - (L/(2nπ)) * sin(2nπx/L))] from x = 0.048 nm to x = 0.072 nm

P = (1/L) * [(0.072 nm - (L/(2nπ)) * sin(2nπ(0.072 nm)/L)) - (0.048 nm - (L/(2nπ)) * sin(2nπ(0.048 nm)/L))]

P = (1/1 nm) * [(0.072 nm - (1/(2nπ)) * sin(2nπ(0.072 nm)/1 nm)) - (0.048 nm - (1/(2nπ)) * sin(2nπ(0.048 nm)/1 nm))]

P = [(0.072 - 0.048) nm] / 1 nm = 0.024

Therefore, the probability of finding the electron in the region between x = 0.048 nm and x = 0.072 nm is 0.024.

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Answer: NO, there are many examples of non-conservative forces.

Explanation: Conservatives forces are special forces whose work is zero in a closed path.

Answer:

a i belive

Explanation:

the univerce is VERY large so a, if im wrong i apologise :(

Answer:

Newton's theory because he suggested that the greater the distance between objects, the weaker the pull of gravity.

Answer: The answer is Newton’s theory because he suggested that the greater the distance between objects, the weaker the pull of gravity

Explanation: Just took the test i hope this help you enjoy :D

Answer:

A.

Explanation:

Im in 10th grade so i just know this stuff

C. 10,200 N is how much energy was lost due to air resistance while she was bouncing

The energy lost due to air resistance while the bungee jumper was bouncing can be calculated by finding the total mechanical energy of the system at the beginning of the jump and comparing it to the total mechanical energy at the end of the jump.

At the beginning of the jump, the total mechanical energy is given by:

Ei = mgh

where m is the mass of the bungee jumper, g is the acceleration due to gravity, and h is the height of the bridge. Therefore, at the beginning of the jump:

50 x 30 x 10 - 1/2 x 30^2 x 10

= 15000 - 4500

= 10,200 N

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