- Determine the tension in each cable in the diagram to the right.

To find the voltage of the combined drops, we can just add the voltage of both drops together.

2(235.15) = 470.3 Volts

The maximum compression of the spring due to the block of mass 10kg is 3.16 m

The spring constant of a horizontal spring, k = 1000 n/m

The mass of the block which compresses the spring, m = 10kg

                                                                                             = 10000 g

The speed of the block, v = 1 m/s

We know that the kinetic energy of the block will be responsible for the compression of the horizontal spring.

Thus, the kinetic energy of the block = work done for compressing the horizontal spring

                1/2 mv² = 1/2 kx²

where m is the mass of the block

           v is the velocity of the block

           k is the spring constant

           x is the compression of the spring

Now, let us substitute the known values in the above equation, we get

             1/2 (10000)(1)² = 1/2 (1000)(x)²

                   500x² = 5000

                          x² = 5000 / 500

                          x² = 10

                          x = √10

                          x = 3.16 m

Therefore, the maximum compression of the spring is 3.16m

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The fuse rating in the plug of the electric device should be 4 amperes.

An ampere can be defined as a unit of measure of the rate of electron flow or current in an electrical conductor.

To calculate the fuse rating in amperes for an electric device with a power rating of 1 kW connected to a mains voltage of 250 V, we can use the formula:

P = IV

Where

In this case, we have P = 1000 W (since 1 kW = 1000 W) and V = 250 V. Solving for I, we get:

I = P/V = 1000 W / 250 V = 4 A

Therefore, the fuse rating in the plug of the electric device should be 4 amperes.

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The difference between the theoretical mass of soap and the recovered mass can be caused by factors such as contamination, incomplete reaction, loss during handling, or side reactions. It's important to carefully consider these possibilities when analyzing differences in mass.

Theoretical mass of soap refers to the expected mass of soap that should be obtained during a chemical reaction, based on the balanced equation and stoichiometry. However, sometimes the actual mass of soap recovered may differ from the theoretical mass.

If the recovered mass of soap is higher than expected, it could be due to several reasons:

1. Contamination: There may be impurities or other substances mixed with the soap, leading to an increase in the overall mass. For example, if the soap was not properly dried before weighing, it might retain some water molecules, causing the mass to be higher.

2. Incomplete reaction: The reaction may not have gone to completion, meaning that not all the reactants were converted into soap. This could occur if the reaction conditions were not optimal or if the reactants were not mixed properly. In such cases, the actual mass of soap recovered would be lower than the theoretical mass, resulting in a higher overall mass.

If the recovered mass of soap is lower than expected, it could be due to the following reasons:

1. Loss during handling: Some soap may have been lost during the transfer or handling process, leading to a lower overall mass. For example, if the soap was spilled or left behind on the apparatus, it would not be included in the recovered mass.

2. Side reactions: During the soap-making process, there could be unintended side reactions that consume some of the reactants and result in the formation of other products. These side reactions reduce the amount of soap formed, leading to a lower recovered mass compared to the theoretical mass.

To summarize, the difference between the theoretical mass of soap and the recovered mass can be caused by factors such as contamination, incomplete reaction, loss during handling, or side reactions. It's important to carefully consider these possibilities when analyzing differences in mass.

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Increase at the same rate as the growth in the money supply.

One of the schools of Western economic thinking that evolved in the 16th and 17th century in monetary economics is the quantity theory of money. According to the QTM, the overall level of prices for goods and services is inversely correlated with the money supply.

Keynesian economists contested the idea, but Milton Friedman and the monetarist school of thought updated and revitalised it. The direct correlation between the money supply and price level does not hold, according to the theory's detractors, since money velocity is unstable and prices are sticky in the short term. According to conventional macroeconomic theory, the CPI-based measure of inflation is unaffected by changes in the money supply.

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Answer:

3.141592653 im  king of NYC

Explanation:

Answer:

40200

Explanation:

200 even numbers from 1 to 400

so n=200

sum of all even numbers is n(n+1)

so sum = 200(201)

which equals 40200

Explanation:

As they are in same direction, you can add them directly. And result is 12 + 8 m = 20 m North. If you use vector addition: Vectors = 12m & 8 m & angle b/w them is 0°(as both are in same direction).

Answer:We have seasons because the earth is tilted (wonky) as it makes its yearly journey around the sun. The Earth's axis is tilted at an angle of 23.5 degrees. This means that the Earth is always "pointing" to one side as it goes around the Sun.

Explanation:

got this from the internet

As the scattering angle θ in the Compton effect increases, the energy of the scattered photon decreases.

The Compton effect is a phenomenon that occurs when a photon collides with a free electron. During the collision, the photon transfers some of its energy to the electron, causing the photon to lose energy and shift to a longer wavelength. The amount of energy lost by the photon is dependent on the scattering angle, with larger angles resulting in greater energy loss. This is because the momentum of the photon is conserved during the collision, and the change in direction (or scattering angle) of the photon results in a change in its momentum. Therefore, as the scattering angle increases, the change in momentum of the photon also increases, leading to a greater loss of energy.

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Answer:

Show the wave

Explanation:

Answer:

The number of complete wavelengths in a given unit of time is called frequency (f). As a wavelength increases in size, it's frequency and energy (E) decrease. From these equations you may realize that as the frequency increases, the wavelength gets shorter. As the frequency decreases, the wavelength get longer.

Explanation:

I majored in Physics

Answer:

A

Explanation:

Electromagnet: It is a temporary magnet. It consists of wrapping coils around iron core and the power source. When the current passes through the coils around the iron core then it will get magnetized. The domains of the electromagnet gets aligned.

As long as the current passes through it, it will get magnetized. It will loose its magnetism easily when the power is switched off.

In the electromagnet, the strength of the magnetism can be increased or decreased. The poles of the electromagnet are not fixed.

To convert Steve's peak speed of 86.7 cm/s to kilometers per hour, we need to use the following formula: 1 km = 100,000 cm and 1 hour = 3,600 seconds.

Hence: Peak speed in km/h = (86.7 cm/s × 1 km/100,000 cm × 3,600 s/1 h)Peak speed in km/h = 0.00312 km/h × 86.7Peak speed in km/h = 0.270 km/h.

Therefore, Steve's peak speed in kilometers per hour is 0.270 km/h.

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Answer:

Velocidad en m / s = 72,25 m / s

Explanation:

Dado

Distancia a recorrer por el coche de carreras = 87 Km

1 km = 1000 m

Por lo tanto, 87 km = 87000 m

Tiempo necesario para viajar 87 km / 87000 metros = 20 minutos o 20 * 60 = 1200 segundos

Velocidad en m / s = 87000/1200

Velocidad en m / s = 72,25 m / s

Answer:

 θ = 73.6º

Explanation:

To solve this exercise, let's use Newton's second law. Let's set a reference system where the x-axis is parallel to the inclined plane

with trigonometry we can find the components of the weight

           sin θ = Wₓ / W

           cos θ= W_y / W

           Wₓ = W sin θ

           W_ = W cos θ

Y axis  

           N - W_y = 0

           N = W_y

X axis

           Wₓ - fr = m a

            mg cos θ - fr = m a

indicate that friction is zero, fr = 0

            cos θ = a / g

            θ = cos⁻¹  \(\frac{a}{g}\)

let's calculate

            θ = cos⁻¹  \(\frac{2.77}{9.8}\)

            θ = 73.6º

Answer:

Explanation:

Particles of a solid are closely packed, and  when a solid is hit to produce a sound the kinetic energy present in the solid will cause the particles to vibrate vigorously in the intermolecular spaces in the solid, whereas the paticles of liquids and gases are rather further apart therefore having large intermolecular spaces between particles.

Answer:

f = 99.96 N

Explanation:

Weight of Mr. Tracy, W = 85 kg

The coefficient of sliding friction between his socks and the floor is 0.12.

We need to find the force of friction that opposes Mr. Tracy's motion down the hall.

The force of friction is given by :

\(f=\mu mg\\\\f=0.12\times 85\times 9.8\\\\f=99.96\ N\)

So, the required force of friction is 99.96 N.

Satellites are objects that orbit around a planet or other celestial body. The altitude of a satellite refers to its distance from the surface of the planet or body that it is orbiting. This distance can be calculated using basic physics principles.

To calculate the altitude of a satellite, we first need to know the mass of the planet or body that the satellite is orbiting, and the distance between the center of mass of the satellite and the center of mass of the planet. This distance is known as the semi-major axis of the orbit.

Once we have these two pieces of information, we can use the formula:

Altitude = (semi-major axis * (1 + (eccentricity^2)) - (planet's radius))

where:

semi-major axis is the distance between the center of mass of the satellite and the center of mass of the planet

eccentricity is a measure of the shape of the orbit, which can range from 0 (a circular orbit) to 1 (a parabolic orbit)

This formula gives us the distance from the center of the planet to the closest point (perigee) in the satellite's orbit. To get the altitude from the surface of the planet, you need to subtract the radius of the planet from the distance.

It is important to note that this formula assumes that the orbit of the satellite is a perfect ellipse and that the only force acting on the satellite is the gravity of the planet or body it is orbiting. In reality, other forces such as drag and solar radiation pressure can affect the orbit of a satellite, and the orbit may not be a perfect ellipse. Therefore, the actual altitude of a satellite may differ from the value calculated using this formula.

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The total pressure acting on the submarine is approximately 106,993.6 Pa.

To calculate the total pressure acting on the submarine, we need to consider both the pressure due to the depth of the seawater and the atmospheric pressure.

The pressure due to the depth of the seawater can be calculated using the formula:

Pressure = density × gravity × depth

where density is the density of the seawater, gravity is the acceleration due to gravity, and depth is the depth of the submarine below the seawater.

Given:

Density of seawater = 1020 kg/m³

Depth of submarine below seawater = 40 cm = 0.4 m

Acceleration due to gravity = 9.8 m/s²

Pressure due to the depth of the seawater = 1020 kg/m³ × 9.8 m/s² × 0.4 m = 3993.6 Pa

Next, we need to consider the atmospheric pressure, which is given as 103,000 Pa.

To find the total pressure acting on the submarine, we need to add the pressure due to the depth of the seawater to the atmospheric pressure:

Total pressure = Atmospheric pressure + Pressure due to depth of seawaterTotal pressure = 103,000 Pa + 3,993.6 Pa

Therefore, the total pressure acting on the submarine is approximately 106,993.6 Pa.

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Answer:

PRESSURE is a force exerted by the substance per unit area on another substance.

The key difference between water pressure and air pressure is that one is made up of water and the other is made up of air. Both air pressure and water pressure are based on and follow the same physical principals.

Explanation:

Answer:

t = 160 minutes

Explanation:

Given that,

Distance of Uranus from Sun is \(2.88\times 10^9\ km\)

We need to find the time taken by the light to go from sun to Uranus if the velocity of light is constant in free space and it is equal to c.

So,

\(t=\dfrac{d}{v}\\\\t=\dfrac{2.88\times 10^9\times 10^3\ m}{3\times 10^8}\\\\t=9600\ s\)

Since, 1 minute = 60 seconds

t = 160 minutes

So, 160 minutes is taken by the light.

Answer:

Subsistence farming is growing food for your own and your family's direct consumption. Like a backyard vegetable garden, but with fruit, starch crops, and animals as well. Intensive agriculture is anything that really works the land hard. The inputs cost money, so it is generally only done for profit

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good luck

Answer:

very low air pressure and that's not 100 points

Answer:

Blood alcohol content (BAC) is a measure of the amount of alcohol that is present in the blood.

A heavier person will have a lower blood alcohol level due to a greater amount of water in their body. The more a person weighs, the more water he/she tends to have in his/her body. The water has a diluting effect on the alcohol so the BAC will be lower in comparison with a person who is slimmer  and has less water in the body.

Explanation:

Given the following information:Mass of the system, m = 20 kg.Damping coefficient, b = 6 Ns/m.Force, F = 90 N.Frequency of applied force, f = ?Applied force angular frequency, w = 6 rad/s.Forced vibration equation:F(t) = F0 sin(wt)where F0 = 90 N and w = 6 rad/s.Under the action of the force F, the mass m will oscillate.The equation of motion for the mass-spring-damper system is given by:$$\mathrm{m\frac{d^{2}x}{dt^{2}}} + \mathrm{b\frac{dx}{dt}} + \mathrm{kx = F_{0}sin(\omega t)}$$where k is the spring constant.x(0) = 0 and x'(0) = 0.As we have the damping coefficient (b), we can calculate the damping ratio (ζ) and natural frequency (ωn) of the system.Damping ratio:$$\mathrm{\zeta = \frac{b}{2\sqrt{km}}}$$where k is the spring constant and m is the mass of the system.Natural frequency:$$\mathrm{\omega_{n} = \sqrt{\frac{k}{m}}}$$where k is the spring constant and m is the mass of the system.Resonant frequency:$$\mathrm{\omega_{d} = \sqrt{\omega_{n}^{2}-\zeta^{2}\omega_{n}^{2}}}$$At resonance, the amplitude of the system will be maximum when forced by a sinusoidal force of frequency equal to the resonant frequency.Resonant frequency:$$\mathrm{\omega_{d} = \sqrt{\omega_{n}^{2}-\zeta^{2}\omega_{n}^{2}}}$$$$\mathrm{\omega_{d} = \sqrt{(6.57)^{2}-(-2.88)^{2}} = 6.98 rad/s}$$Hence, the frequency of applied force at which resonance will occur is 6.98 rad/s.

The frequency of the applied force at which resonance will occur is ω = 2√5 rad/s.

To determine the frequency of the applied force at which resonance will occur, resonance happens when the frequency of the applied force matches the natural frequency of the system. The natural frequency can be determined using the formula:

ωn = √(K / M),

where ωn is the natural frequency, K is the spring constant, and M is the mass of the system.

Substituting the given values of K = 400 N/m and M = 20 kg into the equation, we can calculate the natural frequency ωn.

ωn = √(400 N/m / 20 kg) = √(20 rad/s²) = 2√5 rad/s.

Therefore, the frequency of the applied force at which resonance will occur is ω = 2√5 rad/s.

The correct question is given as,

M= 20kg

Fo = 90 N

ω = 6 rad/s

K = 400 N/m

C = 125 Ns/m

Determine the frequency of applied force at which resonance will occur?

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Answer:

How can scientist best confirm and validate the result of an experiment so they can publish their findings?

Answer:

D. By creating a replicable experiment Is The correct Answer!

Hope this Helps!!

Answer:

D

Explanation:

By creating a replicable experiment

The time taken for the feather to drop to the surface, given that the gravitational acceleration is 1.6 m/s², is 1.4 s

From motion under gravity, we understood that height and time are related according to the follwing formula:

h = ½gt²

Where

Using the above formula, we can obtain the time taken for the feather to drop to the surface. Details below:

h = ½gt²

1.6 = ½ × 1.6 × t²

1.6 = 0.8 × t²

Divide both side by 0.8

t² = 1.6 / 0.8

Take the square root of both side

t = √(1.6 / 0.8)

t = 1.4 s

Thus, the time take is 1.4 s

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The kinetic energy of an object increases as it falls freely.

Potential energy is transformed into kinetic energy when an object falls freely, and kinetic energy is transformed into heat and sound energy upon impact with the ground.

Following completion of the work, energy is transferred to the object, which further moves at a new, constant speed. The sort of energy that is transferred, kinetic energy, is based on the mass and speed obtained. Kinetic energy is a form of energy that can be transformed into other forms of energy and moved between objects.

When something falls, gravity is the cause of the fall. That object experiences a force, which causes it to accelerate, increasing its fall velocity. Gravitational force—the force the Earth exerts on objects—is a type of acceleration. Everything feels the exact same amount of pull from Earth.

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Using the Rayleigh criterion, one concludes that using fixed wavelength light, it is not possible to resolve details less than about one wavelength.

The Rayleigh criterion, also known as the Rayleigh's criterion or the Rayleigh limit, states that in order to resolve two closely spaced objects or details, the separation between them must be at least on the order of the wavelength of the light used for observation. This criterion is based on the interference patterns formed by the diffracted light waves. According to the Rayleigh criterion, the minimum resolvable detail is approximately equal to one wavelength. This means that if the separation between two objects or details is less than one wavelength, they will appear as a single blurred or unresolved image. Therefore, option E) one wavelength is the correct answer indicating the limit of resolving details using fixed wavelength light.

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Answer:

182 V

Explanation:

We do:V=I.R

V is energy so

I = 7

R = 7+7+3+3+6

V= 7.26

V=182