In handball, who is the only player allowed in the goalie area?

Answer:

m = 1,975 m / kg , b = 38.05 m

Explanation:

In this experiment, the elongation is plotted against the applied mass

getting a straight line

            y = m x + b

where b would be the initial length of spring let's calculate the slope for which we use two well separated points

           m = (56.3 -48.4) / (8 - 4)

           m = 1,975 m / kg

the equation remains

         y = 1,975 x + b

for x = 2 kg y = 42.0 m

we substitute in the equation

           42 = 1,975 2 + b

           b = 42 - 3.95

           b = 38.05 m

The rate of climb of the aircraft in a steady climb making a 10 degree angle with the horizontal is : 17.36 knots

Given data

Airspeed = 100 knots

Angle with the horizontal ( ∅ ) = 10°

we will apply the formula below

Vy ( rate of climb ) = Airspeed * sin ∅

                              = 100 * sin ( 10 )

                              = 17.36 Knots

Hence we can conclude that rate of climb of the aircraft in a steady climb is : 17.36 knots.

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What are the properties and definitions?

Answer:

Theses are the answer

Explanation:

The equation describes the sum of the vectors plotted is option B: r = =4x + 2ŷ

The vector plotted below has a horizontal component of 4 (in the positive x-direction) and a vertical component of 2 (in the positive y-direction). Therefore, the vector can be written as:

v = 4x + 2y

To find the sum of two vectors, we simply add their respective components. Let's say we have another vector u, which has components u₁ in the x-direction and u₂ in the y-direction. Then the sum of the two vectors v and u is seen as:

v + u = (4x + 2y) + (u₁x + u₂y)

Therefore, the equation that describes the sum of the vector plot option B rightly fit into the equation.

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See text below

Which equation describes the sum of the vectors plotted below?  

A. 7=28-49

OB. =4x+2ŷ

C. 7=x+y

OD. F=2x+4y

A battery is an electrochemical device that generates electricity from a chemical reaction. It typically consists of two electrodes, an anode and a cathode, separated by an electrolyte, which is a solution or medium that conducts ions.

The chemical reaction between the electrodes and the electrolyte generates a flow of electrons, which can be harnessed to power electrical devices.The flow of electrons generated by the chemical reaction in a battery is a one-way process and cannot be reversed. When the battery is connected to a circuit, the electrons flow from the anode to the cathode, producing an electrical current.

However, the reverse flow of electrons, from the cathode to the anode, cannot be achieved by simply reversing the direction of the current. This is because the chemical reaction that generates the flow of electrons is not reversible.Different types of batteries use different chemical reactions to generate electricity. For example, alkaline batteries use zinc as the anode and manganese dioxide as the cathode, while lead-acid batteries use lead as the anode and cathode and sulfuric acid as the electrolyte.

Lithium-ion batteries, which are commonly used in portable electronic devices, use lithium ions as the charge carriers and graphite as the anode.In conclusion, a battery is an electrochemical device that generates electricity from a chemical reaction and cannot be run in reverse. The chemical reaction is a one-way process that generates a flow of electrons from the anode to the cathode, producing an electrical current that can be used to power electrical devices.

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The density of ice does not affect its melting rate. Adding objects will affect the melting rate.

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Electrical forces dominate between atoms that are close together because they arise from the interaction of charged particles.

Atoms consist of positively charged protons in the nucleus and negatively charged electrons in orbit around the nucleus. The electrical force, also known as the electromagnetic force, is responsible for the attraction between opposite charges (positive and negative) and the repulsion between like charges (positive and positive or negative and negative). When atoms are close together, their electron clouds start to overlap, resulting in the interaction between the charged particles. The electrons in one atom are attracted to the positively charged nucleus of the neighboring atom, creating an attractive electrical force. This force is responsible for holding atoms together in molecules or forming ionic bonds between positively and negatively charged ions.The strength of the electrical force between atoms depends on the magnitude of the charges and the distance between them. When atoms are closer, the distance between their charges decreases, leading to a stronger electrical force dominating the interaction. This is why electrical forces become more significant when atoms are in close proximity to each other.

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Dawn® dishwashing liquid, original scent, comes in a 75 oz bottle. Dawn is a popular brand of dishwashing liquid that is known for its effectiveness in cutting through grease and cleaning dishes. The original scent refers to the fragrance of the dishwashing liquid. The 75 oz bottle is the size of the product.

To use the Dawn dishwashing liquid, follow these steps:
1. Fill the sink or a basin with warm water.
2. Squeeze a small amount of Dawn dishwashing liquid into the water. A little goes a long way, so you don't need to use too much.
3. Agitate the water with your hands or a sponge to create a soapy solution.
4. Place your dishes, utensils, or cookware into the soapy water.
5. Use a sponge or dish brush to scrub the items, making sure to remove any food particles or grease.
6. Rinse the dishes thoroughly with clean water to remove any soap residue.
7. Dry the dishes with a towel or allow them to air dry.
Remember to always follow the instructions on the bottle and use the dishwashing liquid as directed.

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The displacement from the flagpole when they meet is 0 km.

Bradd stands at a distance of 6 km west of a flagpole and runs towards it with a speed of 9 km/hr.

Pitt stands at a distance of 5 km east of the flagpole and runs towards it with a speed of 8 km/hr.

To find out the displacement from the flagpole when they meet, first we have to calculate the time taken by both Bradd and Pitt to reach the flagpole by using the formula:

Time = Distance/Speed

Bradd's Time = 6/9 hours = 2/3 hours

Pitt's Time = 5/8 hours

To find out their position from the flagpole when they meet, we will use the formula:

Position of Bradd - Position of PittWe can find the positions of Bradd and Pitt by using the formula:

Position = Distance from flagpole + Direction

Let the direction towards the flagpole be considered as positive, then

Bradd's Position = -6 km + 2/3(9) km/hr = -6 km + 6 km = 0 km

Pitt's Position = 5 km - 5/8(8) km/hr = 0 km

Thus, their position from the flagpole when they meet will be:

Position of Bradd - Position of Pitt= 0 km - 0 km = 0 km

Hence, their displacement from the flagpole when they meet is 0 km.

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Answer:

Explanation:

Given:

m = 2.0 kg

Wk = 225 J

__________

H - ?

Wp = m*g*H

Wp = Wk

m*g*H = 225

H = 225 / (m*g) = 225 / (2.0*9.8) ≈ 11,5 m

The observed motion of a star along the celestial equator is caused by Earth's rotation. This motion is known as diurnal motion or apparent motion.

As the Earth rotates on its axis, the stars appear to move in a circular path around the celestial pole, and stars near the celestial equator appear to move in a straight line along the celestial equator.This is the main answer to the given question.

Earth's rotation is responsible for the observed motion of a star along the celestial equator. The motion is known as diurnal or apparent motion, and it occurs because of the Earth's rotation on its axis. As the Earth rotates, the stars seem to move in a circular path around the celestial pole, and the stars near the celestial equator seem to move in a straight line along the celestial equator. This motion is an illusion caused by the Earth's rotation, and it allows astronomers to track the positions of stars and other celestial bodies.

Earth's rotation is the reason behind the motion of a star along the celestial equator. It is known as diurnal or apparent motion, which is an illusion.

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Teniendo en cuenta la definición de aleación, el latón es una aleación de cobre y zinc, mientras el bronce es una aleación de cobre y estaño.

Una aleación se define como una mezcla homogénea de un metal con uno o más elementos diferentes, tanto metálicos como no metálicos.

Las aleaciones generalmente se consideran mezclas homogéneas, porque los átomos de los componentes combinados no producen reacciones químicas que formen un nuevo compuesto químico.

Los elementos de la aleación generalmente se dividen en dos categorías, el metal base y los elementos de aleación. El elemento base es el que se encuentra en mayor cantidad en la aleación, mientras que los elementos de aleación son los que se encuentran en menor cantidad.

Finalmente, el latón es una aleación de cobre y zinc, mientras el bronce es una aleación de cobre y estaño.

Aprende más:

20 N , in +x direction is the vector sum of these Toro forces.

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The resultant displacement of  Matsushima is 330.72 miles.

The resultant displacement of an object is the change in the position of the object. It can also be described as the shortest path connecting the initial position and final position of an object.

The resultant displacement of  Matsushima is calculated by applying parallelogram law of vector addition as shown below.

d² = a² + b² - 2ab cos(θ)

where;

Substitute the given parameters and solve for the resultant displacement of  Matsushima as shown below.

d² = (250)² + (125)² - 2(250 x 125) cos(120)

d² = 109,375

d = √109,375

d = 330.72 mi

Thus, the resultant displacement of Matsushima depends on the initial position, final position and angle between the two position as shown in the parallelogram law of vector additions.

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We can calculate the refractive index by substituting the values into the formula: n = √(1 - (2.774 × 10^6 / f)^2). The refractive index of the ionospheric layer can be determined using the formula n = √(1 - (f_ce / f)^2)

(a) The refractive index of the ionospheric layer can be determined using the formula n = √(1 - (f_ce / f)^2), where n represents the refractive index, f_ce is the electron gyrofrequency, and f is the frequency of the incident wave.

The electron gyrofrequency (f_ce) can be calculated using the formula f_ce = 8.978 × √(N), where N is the electron density. Substituting the given electron density value, we have f_ce = 8.978 × √(24.536 × 10^11) ≈ 2.774 × 10^6 Hz.

Now, we can calculate the refractive index by substituting the values into the formula: n = √(1 - (2.774 × 10^6 / f)^2).

(b) The critical frequency for the communication link can be determined using the formula f_c = f_ce / sin(θ), where f_c represents the critical frequency and θ is the angle of incidence. Substituting the given angle of 60°, we have f_c = 2.774 × 10^6 Hz / sin(60°).

(c) The maximum usable frequency (MUF) can be calculated using the formula MUF = f_c / sin(θ). Substituting the critical frequency and angle of incidence given in parts (b) and (a), respectively, we can find the MUF.

(d) Transmissions would fail at the frequencies of 10 MHz and 30 MHz because they are below the critical frequency. The critical frequency represents the maximum frequency that can be reflected back to Earth by the ionospheric layer. If the frequency of the transmission is below the critical frequency, the wave would penetrate through the ionosphere and not be reflected back, leading to a failed transmission.

(e) The ionosphere bends high-frequency radio waves towards Earth due to the phenomenon of refraction. When a radio wave encounters the ionosphere, which is composed of charged particles, it experiences a change in speed and direction. This change in speed and direction is due to the varying density and composition of the ionosphere at different altitudes.

As the radio wave passes through the ionosphere, its path is curved downward towards the Earth's surface. This bending phenomenon occurs because the refractive index of the ionosphere is greater than that of the surrounding vacuum or atmosphere. The higher the frequency of the radio wave, the greater the bending effect due to the higher electron density in the ionosphere at higher altitudes.

This bending of high-frequency radio waves allows for long-distance communication by enabling the waves to travel beyond the line-of-sight. It plays a crucial role in long-distance radio communication, especially in areas where direct line-of-sight transmission is obstructed by the Earth's curvature or other obstacles.

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Answer:

m = 375 [gram]

Explanation:

A triple Beam balance is an instrument very easy to use, since we only have to perform the arithmetic sum of each of the weights that are recorded in each beam

m = 300 + 70 + 5 = 375 [gram]

For a better understanding, the following image is attached, with values on each beam, which should be read.

The largest mass is in the indicator of 100 [gram], the second mass is in the indicator of 20 [gram] and the third is in the indicator of 5.8 [gram]. Thus the arithmetic sum corresponds to:

M= 100 + 20 + 5.8 = 125.8 [gram]

Note: it is important that when the instrument is in balance, the opposite end of the beam should indicate a position of zeros.

The rock fell as far as 78.4 meters.

Given the following data:

We know that the acceleration due to gravity (a) for an object is equal to 9.8 meter per seconds square.

To find how far (distance) has the rock fallen, we would use the third equation of motion;

\(V^2 = U^2 + 2aS\)

Where:

Substituting the given parameters into the formula, we have;

\(39.2^2 = 0^2 + 2(9.8)S\\\\1536.64 = 0 + 19.6S\\\\19.6S = 1536.64\\\\S = \frac{1536.64}{19.6}\)

Distance, S = 78.4 meters.

Therefore, the rock fell as far as 78.4 meters.

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Answer:

6

.40 recharge

1.0v

45.0v

An ideal bandpass filter with unit gain and a bandwidth of 200 Hz is applied to the input signal g(t) = 8 cos(400πt) cos(200,000πt) + 18 cos(200,000nt). The center frequency of the filter is 100,200 Hz. We can sketch the amplitude spectrum of the signal at the output of the filter using the following steps:

Step 1: Determine the Fourier transform of the input signal g(t)The Fourier transform of g(t) is given by: G(ω) = π[δ(ω + 2π × 200,000) + δ(ω - 2π × 200,000)] + π/2[δ(ω + 2π × 200) + δ(ω - 2π × 200)]

Step 2: Determine the transfer function of the bandpass filter

The transfer function of the ideal bandpass filter with unit gain and a bandwidth of 200 Hz centered at 100,200 Hz is given by: H(ω) = {1 for |ω - 2π × 100,200| < π × 100, and 0 otherwise}

Step 3: Multiply the Fourier transform of the input signal by the transfer function of the filter

The output of the filter is given by:

Y(ω) = G(ω)H(ω)The product of the Fourier transform of the input signal and the transfer function of the filter is shown in the figure below.

The given signal is a combination of two cosines, where the first cosine has a frequency of 400π radians/second and the second cosine has a frequency of 200,000π radians/second.

The output of the filter is a bandpass signal with a center frequency of 100,200 Hz and a bandwidth of 200 Hz. The amplitude spectrum of the output signal is zero outside the bandpass region and is equal to the product of the amplitude spectrum of the input signal and the frequency response of the filter within the passband region.

The amplitude spectrum of the output signal is shown in the figure below:

Therefore, the amplitude spectrum of the signal at the output of the filter is a bandpass signal with a center frequency of 100,200 Hz and a bandwidth of 200 Hz. The amplitude of the signal within the passband region is given by the product of the amplitude of the input signal and the frequency response of the filter within the passband region.

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Part 1: The number of pathways in a circuit determines the possible routes for electric current to flow.

There are maximum of five pathways in this circuit, depending on its complexity and the arrangement of components.

Part 2: Determining whether the circuit is series or parallel requires more information.

In a series circuit, components are connected in a single path, and the current flows through each component sequentially.

If the circuit has only one pathway (zero or one pathway), it suggests a series circuit.

However, if the circuit has multiple pathways (two or more pathways), it indicates a parallel circuit.

To conclusively determine the circuit's nature, we need to analyze the circuit diagram or obtain additional details regarding the component connections and their interactions.

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1. If the plug is moved from one position to another, the frequency of the standing wave remains constant.

2. If the plug is moved to a position where the distance between nodes or antinodes decreases, the wavelength of the standing wave will decrease.

3. The wave speed of the standing wave will remain constant regardless of the position of the plug.

As the plug is moved from one position to another in a system where a standing wave is formed, several changes occur in the standing wave frequency, wavelength, and wave speed:

1. Standing wave frequency: The frequency of a standing wave is determined by the vibration frequency of the source that creates the wave. Therefore, if the plug is moved from one position to another, the frequency of the standing wave remains constant as long as the source frequency remains the same. The movement of the plug does not directly affect the frequency of the standing wave.

2. Standing wave wavelength: The wavelength of a standing wave is determined by the distance between two consecutive nodes or antinodes. When the plug is moved, the position of nodes and antinodes may change, affecting the wavelength of the standing wave. If the plug is moved to a position where the distance between nodes or antinodes increases, the wavelength of the standing wave will also increase. Conversely, if the plug is moved to a position where the distance between nodes or antinodes decreases, the wavelength of the standing wave will decrease.

3. Wave speed: In a medium, the wave speed is determined by the properties of the medium, such as its density and elasticity. The movement of the plug does not directly change the properties of the medium, so it does not affect the wave speed. As long as the medium remains the same, the wave speed of the standing wave will remain constant regardless of the position of the plug.

It's important to note that the specific changes in the standing wave frequency, wavelength, and wave speed will depend on the details of the system and the nature of the wave being generated.

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Answer: 0.75 hour(s) or 45 minutes

Explanation:

1 unit of electricity = 1kwh

Amount of energy consumed by 1kw load in one hour

Price per unit = ₹10

Air conditioner rating(power) = 1.2Kw

Given that balance = ₹9

Therefore, supriya's total energy cost = energy balance = ₹9

Total energy cost = power in kilowatt × time of operation (in hour) × cost per unit

₹9 = 1.2kw × time × ₹10

₹9 = 12 × time

Time = 9 / 12

Time = 0.75 hours

0.75 × 60 = 45 minutes

Answer:

1226.25 N

Explanation:

w = mg = 125 (9.81) = 1226.25 N

The approximate value of dcl/da for the rectangular wing is 0.628.

The change in lift coefficient with respect to the change in angle of attack is known as the lift curve slope or dcl/da. It is an important aerodynamic parameter that characterizes the lift generation capability of a wing.

In this problem, we are given a rectangular wing of aspect ratio 10 flying at a Mach number of 0.6. To determine the value of dcl/da, we need to know the wing's aerodynamic properties, such as the airfoil shape and its lift characteristics. However, since this information is not provided, we can make an approximation by assuming a thin flat plate airfoil.

For a thin flat plate airfoil, the lift curve slope is given by:

dcl/da = 2π/AR

where AR is the aspect ratio of the wing.

Substituting the given aspect ratio of 10, we get:

dcl/da = 2π/10 = 0.628

Therefore, the approximate value of dcl/da for the rectangular wing is 0.628.

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False. In multiwire branch circuits, the continuity of a grounded conductor can be interrupted by the removal of such devices since the connection of the neutral and ground wires can be broken.

A conductor is a material or device that facilitates the flow of charge carriers such as electrons, holes, and ions. Conductors are materials that have a high electrical conductivity and allow electric current to pass through them with little resistance. Examples of conductors include silver, copper, aluminum, and graphite. Conductors are used in electronics to create circuits, in electrical wiring to connect components, and in the construction of electric motors and generators. Conductors are also used in the telecommunications industry to carry signals from one point to another.

Therefore the correct answer is True.

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Explanation:

mass=50g

velocity=42cm/s

Kinetic energy

As we know that

\({\boxed{\sf kinetic\:energy={\dfrac {1}{2}}mv^2}}\)

\({:}\longrightarrow\)\(\sf k.v={\dfrac {1}{{\cancel{2}}}}\times 50\times {\cancel{42}}^2 \)

\({:}\longrightarrow\)\(\sf k.v=50\times 21^2 \)

\({:}\longrightarrow\)\(\sf k.v=50×441 \)

\({:}\longrightarrow\)\(\sf k.v=22050MJ \)

\(\therefore\)\({\underline{\boxed{\bf Kinetic\:energy=22Joule}}}\)

Answer:

Explanation:

Forensic techniques such as bite mark analysis, blood spatter analysis, ballistic analysis, the matching of bullet casings to a gun, the matching of hair and fibers, and fingerprint analysis. All of these have come under fire which have not being as scientific as presumed.