What percent of the energy is released when nuclear fusion takes place

Answer:

B. The medium increases in temperature while remaining in the same phase

Explanation:

Good luck on all your tests and Exams!

The sound wave will increase when the medium increases in temperature while remaining in the same phase.

Sound waves are composed of compressions and rare factions. Sound is a mechanical wave hence it moves by the vibration of air particles.

As such, the sound wave will increase when the medium increases in temperature while remaining in the same phase.

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The interference is not destructive, the interference is constructive.

Interference can be constructive or destructive. When two waves pass through the same space at the same time, it is known as interference. If the amplitude of the sum of the waves is less than the amplitudes of the individual waves, then interference is destructive.

Hence, we have to determine whether the interference is destructive when signals modeled by y=20sin (3t+45∘) and y=20sin(3t+225∘) are combined.

In this case, the amplitude of both signals is the same. Hence, we can ignore the amplitude term and consider only the angle component.  

The two signals can be rewritten in terms of the angle component as follows:

y1=3t+45°y2=3t+225°

To find the resultant of the two signals, we add the two signals:

yR=y1+y2=y1=3t+45°+y2=3t+225°=6t+270°

We know that the sine function repeats itself every 360 degrees. Hence, we can rewrite the above equation as:

yR=6t+270°=6t+360°−90°=6t−90°

From the above equation, the resultant signal can be written as: yR=20sin(6t−90°)To determine whether the interference is destructive or not, we check if the amplitude of the resultant wave is less than the individual waves.

Since the amplitude of each signal is 20, the amplitude of the resultant wave is also 20. Hence, the interference is constructive. This is because the two signals are exactly out of phase, and they interfere to create a stronger signal. Therefore, the interference is not destructive.

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Statement:

A force is required to accelerate a 600 g ball from rest to 14 m/s in 0.1 s.

To find out:

The force required to accelerate the ball.

Solution:

Answer:

The force required to accelerate the ball is 84 N and this force acts along the direction of motion.

Hope you could understand.

If you have any query, feel free to ask.

The number of maxima detected when walking in a circle around the antennas can be determined by considering the path difference between the waves from the two antennas. You will detect 4 maxima.

When waves from two coherent sources interfere constructively, maxima are observed. The path difference between the waves arriving at a particular point determines whether constructive or destructive interference occurs.

In this case, the path difference between the waves from the two antennas is equal to the circumference of the circle you are walking (2πr) minus the distance between the antennas (1.20 m). To observe a maximum, the path difference should be equal to an integer multiple of the wavelength (λ) of the waves.

Since the wavelength of the waves is given as 750 MHz (or 7.5 × 10⁸ Hz), we can calculate the number of maxima using the formula:

Number of maxima = (2πr - d) / λ

Substituting the values of the radius (20.0 m), distance between the antennas (1.20 m), and wavelength (7.5 × 10⁸ Hz) into the equation, we find that you will detect 4 maxima.

Therefore, when walking in a circle of radius 20.0 m around the antennas, you will detect 4 maxima.

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Far does the jet go while accelerating = 95.2m and force catapult have to exert on jet is 4.42*105 N.

(measured in metres)

Use the formula xf = xi + v0*t+(1/2)*a*t2 The initial velocity and location are both zero! xf = 0+0+(1/2) xf = (1/2)*(68 m/s - 0 m/s)*(1/2.8s)*(2.8s)2 = 95.2 m

How much force does the catapult have to exert on the jet?

(N) Because F = m*a and Force = mass*acceleration, F = (18,200 kg)*(68 m/s - 0 m/s)*(1/2.8s) = 4.42*105 N.

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Answer:

Explanation:

(a) Electromagnetic waves travels at the speed of light = 3.0 x \(10^{8}\) m/s.

v = fλ

where v is the velocity of the wave, f is the frequency, and λ wavelength.

So that;

λ = \(\frac{v}{f}\)

  = \(\frac{3.0*10^{8} }{87.9*10^{6} }\)

  = 3.413 m

ii. Enegy of the wave can be determined by;

E = hf

where h is the Planck's constant and f the frequency of the wave.

E = 6.626 x \(10^{-34}\) x 87.9 x \(10^{6}\)

  = 5.82 x \(10^{-26}\) J

(b) Refractive index of water = \(\frac{velocity of light in air}{velocity of light in water}\)

velocity of light in water = 1.33 x 3.0 x \(10^{8}\)

       = 3.99 x \(10^{8}\) m/s

Answer:

zero work is done by the worker

The mass of an object indicate the amount of matter it contains, and the weight is a force that results from the action of gravity on the mass of the object.

When we are referring to the amount of matter that a body or an object contain we should use the magnitude of the mass and not the weight that is because the weight is a force.

It is the physical magnitude that expresses the force exerted by gravity on the mass of a body, this is expressed in units of the international system in Newton.

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Explanation:

The angle of the plane is directly correlated to the shape of the elliptical shape cut out. When the plane is at a low angle, the resulting elliptical shape cut out is also much shorter in length. Conversely, when the plane is at a steep angle, the resulting elliptical shape cut out is much longer in length.

This is because the angle of the plane determines the amount of material that will be removed when the plane is used to cut the elliptical shape. When the plane is at a low angle, less material is removed, thus producing a shorter elliptical shape. When the plane is at a steep angle, more material is removed, thus producing a longer elliptical shape.

In addition, the angle of the plane also affects the depth of the elliptical shape cut out. When the plane is at a low angle, the resulting elliptical shape is shallow. Conversely, when the plane is at a steep angle, the resulting elliptical shape is deep.

The line that goes up by 1 and right/left by 1. Hope this helps

Answer:

Put simply, it's the physics that explains how everything works: the best description we have of the nature of the particles that make up matter and the forces with which they interact. Quantum physics underlies how atoms work, and so why chemistry and biology work as they do.

Answer:

qorks with atomic booms and nuclearbombs on how atoms react when charged

When borosilicate glass is undergoing change in temperature, heat is transferred.  The specific heat of borosilicate glass is 837.4 J/kg. °C

The specific heat is the amount of heat stored per kilogram of substance by 1 degree rise in temperature.

Given is the mass of borosilicate glass m =100 g =0.1 kg, heat transferred Q = 309J, temperature change ΔT = 3.69°C

Q = m x Cp x  ΔT

309 = 0.1 x Cp x 3.69

Cp = 837.4 J/kg. °C

Thus, the specific heat of borosilicate glass is 837.4 J/kg. °C

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The angular speed of the wheels is approximately 403.47 rad/min, and the wheels make approximately 387.68 revolutions per minute (rpm).

To find the angular speed of the wheels in rad/min, we need to convert the linear speed of the truck to angular speed. The linear speed of the truck is given as 55 mi/h. We know that the distance traveled on the circumference of a circle is equal to the product of the radius and the angle in radians subtended by the arc. In this case, the distance traveled on the circumference of the wheels is equal to the linear speed multiplied by the time taken.

We can calculate the radius of the wheels by dividing the diameter by 2, which gives us 15 inches. Converting the linear speed from miles per hour to inches per minute, we get (55 mi/h) * (5280 ft/mi) * (12 in/ft) / (60 min/h) ≈ 58080 in/min.

The angular speed is then obtained by dividing the linear speed by the radius of the wheels. So, the angular speed of the wheels in rad/min is approximately 58080 in/min / 15 in ≈ 3872 rad/min.

To find the number of revolutions per minute (rpm), we divide the angular speed by 2π, as one revolution is equal to 2π radians. Therefore, the wheels make approximately 3872 rad/min / (2π) ≈ 616.29 rpm.

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Renewable resources are sources of energy that can be replenished naturally or through sustainable practices. They include various forms of energy generation such as solar, wind, hydroelectric, geothermal, and biomass.

Solar Power: Power stations that use solar energy capture sunlight through photovoltaic panels or solar thermal systems to convert it into electricity.

Wind Power: Wind turbines in wind power stations convert the kinetic energy of wind into electrical energy.

Hydroelectric Power: Power stations that harness the potential energy of flowing or falling water in rivers or dams to generate electricity.

Geothermal Power: Power stations that utilize the heat from the Earth's interior to produce steam, which drives turbines and generates electricity.

Biomass Power: Power stations that burn organic materials such as wood, agricultural residues, or dedicated energy crops to produce heat or electricity.

It's important to note that the specific type of renewable resource used by a power station depends on factors such as the available resources in the area, the technology employed, and the local conditions.

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Answer:

below

Explanation:

300 000 km = 300 000 000 m

c = wl * f

3 x 10^8   =  300 000 000 m    *  f

1 hz = f

The wavelength of infrared radiation are greater than ultraviolet radiation.

The wavelength of infrared radiation is the distance from one peak of an electromagnetic wave to the next peak of the same wave. Infrared radiation has a wavelength range of 700 nanometers (\(nm\)) to 1 millimeter \((mm)\). It is divided into three categories: near infrared (\(NIR\)), mid-infrared \((MIR)\), and far infrared (\(FIR\)). NIR has a wavelength range of 700-1400 \(nm\), \(MIR\) has a range of 1400-3000 nm, and\(FIR\) has a range of 3000 \(nm\) to 1 \(mm\).

Infrared radiation is an invisible form of energy that is produced by all living things and objects. It is used to detect heat and measure temperatures. It is also used in many medical techniques, such as thermography, which can detect and diagnose diseases like cancer.

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The mean free path in the gas is given by the formula: mean free path = (k * T) / (sqrt(2) * pi * d^2 * P), where k is Boltzmann's constant, T is the temperature in Kelvin, d is the diameter of a helium atom.

P is the pressure in atm. The diameter of a helium atom is approximately 2.4 Ångstroms.

The rms speed of the atoms is given by the formula: rms speed = sqrt((3 * k * T) / (m)), where k is Boltzmann's constant, T is the temperature in Kelvin, and m is the mass of a helium atom.

The average energy per atom is given by the formula: average energy per atom = (3/2) * k * T, where k is Boltzmann's constant and T is the temperature in Kelvin.

The mean free path is the average distance an atom travels between collisions. It depends on the temperature, pressure, and size of the atoms.

The rms speed is the square root of the average of the squared speeds of the atoms. It gives an indication of the magnitude of the velocities of the atoms.

The average energy per atom is the average kinetic energy of the atoms in the gas. It depends only on the temperature and is proportional to the absolute temperature.

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Answer:

This is newton's 3rd law

Explanation:

Answer:

La velocidad con la que se debe lanzar el trineo es aproximadamente 9.96 m/s

Explanation:

La masa del trineo, m = 2 kg

El ángulo de inclinación del trineo, θ = 30 °

El coeficiente de fricción, μ = 0,15

La altura a la que debe ascender el trineo, h = 4 m

La reacción normal del trineo en la rampa, N = m · g · cos (θ)

La fuerza de fricción \(F_f\) = N × μ

Dónde;

g = Th aceleración debida a la gravedad ≈ 9.81 m/s²

∴ \(F_f\)  = 0.15 × 2 kg × 9.81 m/s² × cos (30°) ≈ 2.55 N

La longitud de la rampa que se mueve el trineo, l = h/(sin(θ))

∴ l = 4/(sin(30°)) = 8

La longitud de la rampa que se mueve el trineo, l = 8 m

El trabajo realizado sobre la fricción, \(W_f\) = \(F_f\) × l

\(W_f\) = 2.55 × 8 ≈ 20.4

El trabajo realizado sobre la fricción, \(W_f\) ≈ 20.4 Julios

El trabajo realizado para levantar el trineo a 4 metros de altura, P.E. = m·g·h

∴ P.E. = 2 kg × 9.81 m/s² × 4 m ≈ 78.48 Joules

El trabajo realizado para levantar el trineo a 4 metros de altura, P.E. ≈ 78.48 Joules

El trabajo total requerido para levantar el trineo 4 metros por la rampa, \(W_t\) = \(W_f\) + P.E.

\(W_t\) = 20.4 J + 78.84 J ≈ 99.24 J

Energía cinética, K.E. = 1/2 × m × v²

La energía cinética necesaria para mover el trineo por la rampa, K.E. se da de la siguiente manera;

K.E. = 1/2 × 2 kg × v² ≈ 99.24 J

∴ v² ≈ 99.24 J/(1/2 × 2 kg)

La velocidad con la que se debe lanzar el trineo para que ascienda 4 metros por la rampa, v ≈ 9.96 m/s

Answer:ME= 1\2mv^2 + mgh

Explanation: I hope this helped.

The correctly represents the gravitational potential energy of a system is = - ΣGM₁M₂/R. Negative sign appears as gravitational force is attractive force.

Potential energy is a form of stored energy that is dependent on the relationship between different system components. When a spring is compressed or stretched, its potential energy increases.

If a steel ball is raised above the ground as opposed to falling to the ground, it has more potential energy. It is capable of performing more work when raised.

Potential energy is a characteristic of systems rather than of particular bodies or particles; for instance, the system made up of Earth and the elevated ball has more potential energy as they become further apart.

Potential energy of a system of particles can be represented as summation of individual's  potential energy. Hence, the correctly represents the gravitational potential energy of a system is = - ΣGM₁M₂/R.

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The new frequency of oscillation, when the spring constant is doubled, is approximately 28.28 Hz, which is the square root of 2 times the original frequency of 20 Hz.

When a mass is attached to a spring and oscillating back and forth, the oscillation frequency is directly proportional to the square root of the spring constant.

The formula that links mass, spring constant, and frequency is as follows:

\($$f=\frac{1}{2π}\sqrt{\frac{k}{m}}$$\)

where f = frequency, k = spring constant, and m = mass of the object.

Therefore, we can calculate the new frequency as follows:Original frequency: \($f_1 = 20 Hz$\)

New spring constant:

\($k_2 = 2k_1$\) where \($k_1$\) is the original spring constant

New frequency:

\($f_2 = \frac{1}{2π}\sqrt{\frac{k_2}{m}}$\)

If we substitute $k_2 = 2k_1$ into the above equation and simplify, we get:

\($f_2 = \frac{1}{2π}\sqrt{\frac{2k_1}{m}}$\)

\($f_2 = \frac{1}{2π}\sqrt{\frac{2}{m} k_1}$\)

\($f_2 = \frac{1}{2π}\sqrt{\frac{k_1}{m}}\sqrt{2}$\)

\($f_2 = \sqrt{2}f_1$\)

Therefore, the new frequency of oscillation is \($\sqrt{2}$\) times the original frequency, or:

\($f_2 = \sqrt{2}f_1 = \sqrt{2}(20 Hz) = 28.28 Hz$\)

Hence, the new frequency of oscillation is 28.28 Hz.

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the required equation for centripetal force is F = k m¹ v¹ r⁻¹.

A particle traveling uniformly in a circle experiences a centripetal force, F, which is dependent on the mass (m), velocity (v), and radius (r) of the circle.

the F formula using the dimensions method is

Suppose F = k mᵃvᵇrⁿ. (i)

Where a, b, and n are the respective powers of m, v, and r and k is the dimensionless constant of proportionality.

Upon putting the measurements of various amounts in (i)

we get

[M¹L¹T‐²] = Mᵃ[LT‐¹]ᵇ Lⁿ

=> [M¹L¹T‐²] = Mᵃ Lᵇ Lⁿ T⁻ᵇ

=> [M¹L¹T-²] = Mᵃ Lᵇ⁺ⁿ T⁻ᵇ

on comparing both sides we get

a = 1

b+n = 1

-b = -2 => b = 2

Then n = -1

Onputting these values in (i),

we get

F = k m¹ v¹ r⁻¹

Or

F=k(mv²)/r

This is the required equation for centripetal force.

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The thermal energy created when the crate slides at the given distance is 6,192.8 J.

The given parameters;

The thermal energy created is the energy lost due to friction and it is calculated as follows;

\(W = \mu F_n d\)

where;

\(\mu\) is the coefficient of friction

The coefficient of friction is calculated as;

\(\mu = tan(\theta)\\\\\mu = tan(35)\\\\\mu = 0.7\)

The work done against friction is calculated as;

\(W = \mu F_n d\\\\W = \mu (Wcos\theta ) d\\\\W = 0.7 \times 900 \times cos(35) \times 12\\\\W = 6,192.8 \ J\)

Thus, the thermal energy created when the crate slides at the given distance is 6,192.8 J.

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The relation between NTU unit and turbidity is based on appearance for all the samples therefore the values of respective NTU unit for all samples is between low and high.

What is meant by Turbidity?

Haziness or cloudiness in fluids as a result of dissolving two separate particles like totally dissolved solids or dissolved solids is known as Turbidity.

What is meant by NTU value?

The full form of NTU is Nephelometric Turbidity unit. It is the unit used to measure the turbidity of a given fluid, also to detect any presence of suspended particles in water.

The relation between suspended solid and NTU is:

1 mg/l (parts per million, ppm) = 3 NTU

Thus, as the relation between NTU unit and turbidity is based on appearance for all the samples therefore the values of respective NTU unit for all samples is consistent.

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Answer:

d

Explanation:

Answer:

sound

Explanation:

but im not exactlly sure so sorry if its wrong.

Answer:

It's Surface wave

Explanation: It travels in a circular motion. The particles travel both parallel and perpendicular in the direction of the wave-

S = ut + 1/2gt²

where S = distance

50 cm = 0.5m

u is initial velocity = 0

S = 0*t + 1/2gt²

S = 1/2gt²

0.5 = 1/2 g (0.778²)

2*0.5 = g(0.778²)

1/(0.778²) = g

g = 1.65m/s²

The value of g is grossly errored due to the values obtained since the known value of g on earth is 9.8m/s² the obtained value rounds off to the value of g on moon.

Option C. is correct. The recurrent nova has the potential to build up its mass over time and eventually reach the critical threshold for a Type I supernova.

Recurrent novae are binary star systems where a white dwarf accretes material from a companion star. When the accreted material reaches a critical mass, a thermonuclear explosion occurs on the surface of the white dwarf, resulting in a nova outburst. Unlike classical novae, recurrent novae experience multiple eruptions over time.

As a recurrent nova continues to accrete material, the mass of the white dwarf gradually increases. If the mass surpasses the Chandrasekhar limit of about 1.4 times the mass of the Sun, a Type I supernova can occur. In a Type I supernova, the white dwarf undergoes a catastrophic explosion, completely destroying the star.

Therefore, the recurrent nova has the potential to build up its mass over time and eventually reach the critical threshold for a Type I supernova.

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Answer:

Hewo My Lovelys!!

Answers are down below!!

Explanation:

The climate region near the equator with warm air masses is known as tropical. In tropical and polar climates, the weather is consistent throughout the year. In temperate zones, the weather is affected by both warm and cold air masses at different times during the year, so the weather changes with the seasons.

Hope this helps!! =3

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