Calculate the range in cm of the maximum energy of beta Ray (2. 37MeV)fir 90Y in bone of density 1. 9g/cm3

Answers

Answer 1

The range of the maximum energy beta ray (2.37 MeV) from 90Y in bone of density 1.9 g/cm3 is approximately 20.1 cm.

The range of a beta particle in a material depends on its energy and the density of the material. The energy loss of the beta particle as it travels through the material is due to collisions with the atomic nuclei in the material. This means that the range of the beta particle decreases as its energy decreases.

To calculate the range of a beta particle in bone, we can use the following formula:

R = 0.412 * E_max * (ρ_d/ I)

Where:

R = range in cm

E_max = maximum energy of beta particle in MeV

ρ_d = density of bone in g/cm3

I = average ionization potential of bone in MeV

For bone, the average ionization potential is approximately 85 eV, which is equivalent to 0.085 MeV.

Substituting the given values, we get:

R = 0.412 * 2.37 * (1.9 / 0.085) = 20.1 cm

Therefore, the range of the maximum energy beta ray (2.37 MeV) from 90Y in bone of density 1.9 g/cm3 is approximately 20.1 cm.

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Related Questions

A part is specified with a tensile strength minimum only (no maximum specification).


It has a Cp = 1. 2. Please determine the reject rate. RR = _______________


1. A part is specified with a tensile strength 2 sided specifications. Assume process average is centered and two sided specifications. It has a Cpk = 1. 2. Please determine the reject rate. RR = _______________


2. A part is specified with a tensile strength 2 sided specifications.


It has a Cp = 0. 7. Please determine the reject rate. RR = _______________


3. A part is specified with a tensile strength minimum only (no maximum specification).


It has a Cp = 1. Please determine the reject rate. RR = _______________


4. A part is specified with a tensile strength minimum only (no maximum specification). Assume process average is centered and one-sided specifications.


It has a Cpk = 1. 3. Please determine the reject rate. RR = _______________


5. A part is specified with a tensile strength minimum only (no maximum specification).


It has a Cp = 1. 2. Please determine the reject rate. RR = _______________


6. A part is specified with a tensile strength 2 sided specifications. Assume process average is centered and two sided specifications. It has a Cpk = 1. 1. Please determine the reject rate. RR = _______________


7. A part is specified with a tensile strength 2 sided specifications.


It has a Cp = 0. 6. Please determine the reject rate. RR = _______________


8. A part is specified with a tensile strength minimum only (no maximum specification).


It has a Cp = 1. 25. Please determine the reject rate. RR = _______________


9. A part is specified with a tensile strength minimum only (no maximum specification). Assume process average is centered and one-sided specifications.


It has a Cpk = 0. 8. Please determine the reject rate. RR = _______________

Answers

To determine the reject rate (RR) for each scenario, we need to consider the capability indices Cp and Cpk along with the specifications for tensile strength. The reject rate represents the proportion of parts that do not meet the specifications.

1. RR = 0.27%

2. RR = 16.03%

3. RR = 0%

4. RR = 0.003%

5. RR = 0.27%

6. RR = 2.28%

7. RR = 29.93%

8. RR = 0%

9. RR = 5.87%

Please note that these calculations assume a normal distribution of tensile strength and that the process is in statistical control. The reject rate is obtained by evaluating the proportion of values falling outside the specified limits based on the process capability indices Cp and Cpk.

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A friend of yours who has not taken an astronomy class looks at your textbook and really likes the picture of the Pleiades, a cluster of stars surrounded by a bluish reflection nebula. She wants to know what causes that beautiful blue glow. To explain it to her, you want to compare the process that causes the blue glow to something that is in your friend's everyday experience. Which of the following terrestrial phenomena is the result of the same type of process that makes a reflection nebula in space?
A. the blueish glow of the flame on a gas stove
B. the blue light you see reflected from a blue sweater
C. the blue colour of the Earth's sky
D. the blue-white colour of the hottest stars
E. the blue feeling you get when you don't do well on an astronomy exam

Answers

Answer:

C. the blue colour of the Earth's sky

Explanation:

The Pleiades is a cluster of sister stars that are among the closest star cluster to earth.

The reflection nebula of the Pleiades is due to the scattering of the blue light from the hot blue luminous stars that dominate the star cluster. Th blue light is scattered from dust molecules, thought to be predominantly carbon compound like diamond dusts, and other compounds like iron.

The blue colour of the Earth's sky is the closest terrestrial phenomenon to the reflection nebula. On a clear cloudless day, molecules in the air scatter the blue component of light more than the other component colours of white light, giving the sky its characteristic blue coluor.

The common characteristics of the luminous nebula and the Earth's blue sky is that they both have their light scattered by the presence of small particles.

The physical quantity represented as rate of change of change in position in a

particular direction.

a) Speed

b) Velocity

c) Average speed

d) acceleration​

Answers

Answer:

B

rate of change of its position with respect to a frame of reference, and is a function of time.

Marking as brainliest last attempt

(ZOOM IN THE PHOTO) use the graphic organizer for writing ur paragraphs

write a paragraph about the topic : bullying in schools

Marking as brainliest last attempt (ZOOM IN THE PHOTO) use the graphic organizer for writing ur paragraphs

Answers

Bullying is repetitive harassment/harmful behavior towards another person or an assemble of people. It can be aimed at certain groups, example being; ethnicity, gender identity, race, culture, religion, etc. bullying is usually targeted at people deemed to be different.

On other occasions, bullying can sprout from jokes, possibly because the bully can’t find another way to make friends/make people laugh. It can mostly come from the bully’s own insecurities, they typically reflect them onto the victim


(Hope this is good! Sorry for any inconvenience)

A 100 meter dash was held with 20 contestants. The best time was 10.7 seconds, and the worst time was 15.3 seconds. Only the fastest 10 contestants advance to the final race.

Which measure of central tendency should be used to calculate the cutoff time for the final race?
A.
range
B.
mode
C.
median
D.
mean

Answers

The measure of central tendency that should be used to calculate the cutoff time for the final race is the median.

Option C.

What is median?

The median is the middle point in a dataset—half of the data points are smaller than the median and half of the data points are larger.

To find the median: Arrange the data points from smallest to largest. If the number of data points is odd, the median is the middle data point in the list.

So from the given data of the 100 meter dash, the measure of central tendency that should be used to calculate the cutoff time for the final race is the median.

The median will help to separate half of the data points that are smaller than the cutoff time and half of the data points are larger than the cutoff time.

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Una tabla de madera mide 61. 6cm como se expresa en metros esa longitud

Answers

The length of the board of wood expressed in meters is 0.616 m.

To convert 61.6 cm to meters, we can use the formula:

Length in meters = Length in centimeters ÷ 100

Plugging in the given value, we get:

Length in meters = 61.6 cm ÷ 100 = 0.616 m

Wood is a natural composite material made of cellulose fibers, lignin, and hemicelluloses, which are held together by a complex network of bonds. The cellulose fibers provide strength and rigidity, while the lignin acts as a binder, holding the fibers together. The hemicelluloses are responsible for the elasticity and flexibility of the material.

Wood has many interesting physical properties that make it a valuable material in a wide range of applications. For example, it is a good insulator, making it useful for construction and electrical applications. It is also a good acoustic absorber, making it useful in musical instruments and recording studios.

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Complete Question:

A board of wood measures 61.6 cm as that length is expressed in meters

The largest grand piano in the world is really grand. Built in London, it has a mass of 1,152 kg. Suppose a pianist finishes playing this piano and pushes herself from the piano so that she rolls backwards with a speed of 1.5 m/s. Meanwhile, the piano rolls forward with a constant velocity of 0.06 m/s. Assuming the stool that the pianist is sitting on has a negligible mass, what is the pianist’s mass? Round to the hundredths.

Answers

ANSWER:

46.08 kg

STEP-BY-STEP EXPLANATION:

Given

m1 = 1152 kg

v1 = 0.06 m/s

v2 = -1.5 m/s

We apply law of conservation of linear momentum:

\(\begin{gathered} P_i=P_f \\ P_i=0 \\ P_f=m_1\cdot V_1+m_2\cdot V_2 \end{gathered}\)

We plug in and calculate for the mass, just like this:

\(\begin{gathered} 0_{}=m_1\cdot V_1+m_2\cdot V_2 \\ 0=1152\cdot0.06+m_2\cdot-1.5 \\ -1.5m_2=-69.12 \\ m_2=\frac{-69.12}{-1.5} \\ m_2=46.08\text{ kg} \end{gathered}\)

Which means that the mass of the pianist is 46.08 kg

When a car speeds up when rounding a curve, what happens to its centripetal
acceleration?


A.) It decreases

B.) It increases

C.) It remains constant.

D.) It is zero.

Answers

i would say b , but i’m not 100% sure

Which unit of electricity expresses the volume of electron movement in a circuit?

Answers

Answer:

Ampere

Explanation:

This is the current unit of the circuit ....

Which of the following factors does NOT influence wind speed and direction? a. Friction b. Pressure gradient c. Coriolis effect d. High to low pressure difference e. Radiation QUESTION 4 According to the book, how do pressure gradients usually develop? a. Differences in outgoing longwave radiation b. Winds blowing waves across the ocean c. Unequal heating of the atmosphere d. Winds blowing sand across the landscape e. Seismic waves produced by earthquakes QUESTION 5 Which of the following best describes how a sea breeze works? a. Wind blows from sea to land because warm land has low pressure and cooler sea has higher pressure b. Wind blows from land to sea because wind blows down from higher elevation c. Wind blows parallel to the coastline because of the Coriolis effect d. Wind blows from land to the sea because it is darker e. Wind blows from sea to land because there is more flat distance over which wind can blow in the ocean QUESTION 6 Based on the Coriolis effect, how are winds changed from flow driven by the pressure gradient in the northern hemisphere? a. Winds bend to the right b. Winds speed up c. Winds bend to the left d. Winds bend upward e. Winds slow down QUESTION 7 In which direction does the frictional force work? a. in the same direction as the pressure gradient, causing it to speed up b.to the left of the pressure gradient c. opposite the pressure gradient, slowing it down d.to the right of the pressure gradient e. opposite the motion of the wind, slowing it down

Answers

The factor that does NOT influence wind speed and direction is radiation. Hence, the correct option is (e). The factor that does NOT influence wind speed and direction is radiation.

The other four factors that influence wind speed and direction are friction, pressure gradient, Coriolis effect, and high-to-low pressure difference.

Pressure gradients usually develop due to unequal heating of the atmosphere. Hence, the correct option is (c). Pressure gradients usually develop due to unequal heating of the atmosphere.

Pressure gradients occur due to differences in air temperature, which cause pressure differences. Areas with warmer air will have lower pressure while those with cooler air will have higher pressure.

The wind blows from the sea to land because warm land has low pressure and cooler sea has higher pressure is the best description of how a sea breeze works. Hence, the correct option is (a).

A sea breeze is a type of local wind that blows from the sea towards the land. This occurs because during the day, the land heats up faster than the sea, causing the air above it to rise.

This creates a low-pressure area above the land. At the same time, the sea remains cooler, and the air above it is denser, creating a high-pressure area. The air flows from the high-pressure area (the sea) to the low-pressure area (the land), creating a sea breeze.

This breeze usually occurs in the afternoon when the temperature difference between the land and sea is greatest. It helps to cool down the land and bring moisture from the sea to the land.

The sea breeze is a result of differences in air temperature and pressure between the land and sea, with the wind flowing from high to low pressure, bringing moisture to the land and cooling it down.

Winds are bent to the right from the flow driven by the pressure gradient in the northern hemisphere, based on the Coriolis effect. Hence, the correct option is .

Based on the Coriolis effect, winds are bent to the right from the flow driven by the pressure gradient in the northern hemisphere. The Coriolis effect occurs due to the Earth's rotation, causing moving objects such as wind to deflect to the right in the northern hemisphere and to the left in the southern hemisphere.

The frictional force works opposite the motion of the wind, slowing it down. Hence, the correct option is (e). The frictional force works opposite the motion of the wind, slowing it down.

Friction occurs when the wind blows over the surface of the Earth, causing drag and slowing down the wind. The frictional force works opposite to the direction of the wind, with the greatest friction near the surface and decreases with height.

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a car is moving with a velocity of 25m/s for 15s. calculate the displacement of the car. The acceleration of the car over the 15s​

Answers

Explanation:

this might help you i think so

a car is moving with a velocity of 25m/s for 15s. calculate the displacement of the car. The acceleration

3. Since Aspeon is not expected togrow, Emily believes that the following equations can be used in the valuation analysis: (1) S=[EBIT−kd(D)](1−ks)
(2) V=S+D
(3) P=(V−D0)/n0
(4) n1=n0−D/P
(5) VL=VU+TD

Answers

The equations mentioned by Emily in the valuation analysis for Aspeon are as follows:

1) Equation (1): This equation represents the value of equity (S) and calculates it based on the EBIT (earnings before interest and taxes), the tax shield provided by debt (D), and the required return on debt (kd) and equity (ks). It implies that the value of equity is equal to the adjusted EBIT after deducting the tax shield from debt.

2) Equation (2): This equation calculates the total enterprise value (V) by adding the value of equity (S) and debt (D). It represents the total worth of the company, considering both equity and debt.

3) Equation (3): This equation calculates the price per share (P) by dividing the total enterprise value (V) minus the initial debt (D0) by the number of shares (n0). It represents the price per share based on the valuation of the company.

4) Equation (4): This equation calculates the new number of shares (n1) by subtracting the dividend (D) from the initial number of shares (n0) divided by the price per share (P). It represents the adjusted number of shares after the payment of dividends.

5) Equation (5): This equation calculates the levered value (VL) by adding the unlevered value (VU) with the tax shield value (TD). It represents the value of the company after considering the tax advantages of debt.

These equations provide a framework for valuation analysis, considering factors such as earnings, taxes, debt, and equity. They help assess the value and financial implications of Aspeon's growth prospects.

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An electron is released 9. 0 cm from a very long nonconducting rod with a uniform linear charge density 6. 0 µC/m. What is the magnitude of the electron's initial acceleration?

Answers

The magnitude of the electron's initial acceleration is \(2.53 * 10^_{30\) \(m/s^2\). Calculated using Coulomb's law and Newton's second law.

At the point when an electron is delivered close to a charged pole, it encounters an electric power because of the electric field created by the bar.

To find the extent of the electron's underlying speed increase, we really want to ascertain the power following up on it and afterward utilize Newton's subsequent regulation, which expresses that power is equivalent to mass times speed increase.

The power following up on the electron can be found utilizing Coulomb's regulation, which relates the extent of the electric power between two charged particles to the result of their charges and the distance between them. For this situation, the electron is set 9.0 cm free from the bar, which has a uniform direct charge thickness of 6.0 µC/m.

Utilizing Coulomb's regulation, we can find the size of the electric power following up on the electron:

\(F = k * (q1 * q2)/r^2\)

where k is Coulomb's consistent, q1 is the charge of the electron, q2 is the charge thickness of the bar, and r is the distance between the electron and the bar.

Subbing the given qualities, we get:

\(F = (9.0 * 10^9 N.m^2/C^2) * [(1.6 * 10^-19 C) * (6.0 * 10^-6 C/m)]/(0.09 m)^2 = 2.304 N\)

Then, we can utilize Newton's second regulation to track down the extent of the electron's underlying speed increase:

a = F/m

where an is the speed increase, F is the power determined utilizing Coulomb's regulation, and m is the mass of the electron.

The mass of an electron is around \(9.11 x 10^_-31} kg\). Subbing this worth, we get:

\(a = 2.304 N/9.11 * 10^-31 kg = 2.53 * 10^_{30}\) \(m/s^2\)

Thusly, the greatness of the electron's underlying speed increase is 2.53 x \(10^_{30\) \(m/s^2\).

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1. What is the net force required to accelerate a 1500 kg race car at 3m/s??

Answers

Answer:

4500 N

Explanation:

We have,

• Mass, m = 1500 kg

• Acceleration, a = 3 m/s²

We have to find force required, F.

\(\longrightarrow\) F = ma

\(\longrightarrow\) F = 1500 × 3 N

\(\longrightarrow\) F = 4500 N (Answer)

The wavelength of light visible to the human eye is on the order of 5 × 10?7 m.Find the frequency of the lightwave if the speed of light in air is 2.99792 × 108 m/s.

Answers

The speed of light (c) in air is 2.99792 × 10^8 m/s, and the wavelength of visible light (λ) is 5 × 10^-7 m.

We can use the formula for the speed of light, which is:

c = λν

where ν is the frequency of the light wave.

Solving for ν, we get:

ν = c / λ

Substituting the values we have:

ν = (2.99792 × 10^8 m/s) / (5 × 10^-7 m)

ν = 5.99584 × 10^14 Hz

Therefore, the frequency of the light wave is approximately 5.99584 × 10^14 Hz.

The latent heat of fusion for Aluminium is 3.97 x 105. How much energy would be required to melt 0.75 kg of it?

Answers

Answer:

\(E = 2.9775\times10^5 J\)

Explanation:

Given:  The latent heat of fusion for Aluminum is \(L = 3.97\times10^5 J/Kg\)

mass to be malted m = 0.75 Kg

Energy require to melt E = mL

\(E = 3.97\times10^5\times0.75 = 2.9775\times10^5 J\)

Therefore, energy required to melt 0.75 Kg aluminum

\(E = 2.9775\times10^5 J\)

Why did new and existing aquatic organisms thrive during the Mesozoic?

Answers

The new and existing aquatic organisms thrive during the Mesozoic era for oceanic expansion, warm climate, abundant food and Evolutionary innovations

What is the Mesozoic?

The Mesozoic era, which lasted from about 252 million years ago to 66 million years ago, was a time of great change in the Earth's climate and geography. During this period, new and existing aquatic organisms thrived due to several factors:

Oceanic Expansion: During the Mesozoic era, the Earth's continents began to separate, leading to the expansion of ocean basins. This created more habitat for aquatic organisms to colonize and diversify.

Warm Climate: The Mesozoic era was characterized by a warm and stable climate, which allowed marine organisms to thrive in the shallow, sunlit waters near the coasts.

Abundant Food: The oceans of the Mesozoic were rich in nutrients, which supported the growth of plankton and other primary producers. This, in turn, provided a food source for a wide variety of marine organisms, including fish, marine reptiles, and invertebrates.

Evolutionary innovations: During the Mesozoic era, many new types of aquatic organisms evolved, including dinosaurs, marine reptiles such as ichthyosaurs and plesiosaurs, and various types of fish. These evolutionary innovations allowed aquatic organisms to exploit new niches and diversify their lifestyles.

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What are 3 things happened to the alpha particles in Rutherford a experiment

Answers

Answer:(:

Explanation:

discovered alpha and beta rays, and proposed the laws of radioactive decay.

If the radius of curvature of a mirror is 15m and the distance of the object from the mirror is 10m. Find the distance of the image from the mirror and the magnification of the object in meter

Answers

Answer:

Data given.

focal length (f)=15m÷2=7.5m

Distance of the object(U)=10m

Image distance (v)=?

Magnification (M)=?

Solution:

From:

1/f=1/u+1/v

1/7.5=1/10+1/v=75

then v=75m

Magnification, M=u/v

=75/10=7.5

Then magnification=7.5

Answer:

v = 30 m and m = 3

Explanation:

Given that,

The radius of curvature of the mirror, R = 15 m

Focal length, f = 7.5 m

Object distance, u = -10 m

We need to find the image distance and the magnification of the object.

Using mirror's formula,

\(\dfrac{1}{v}-\dfrac{1}{u}=\dfrac{1}{f}\\\\\dfrac{1}{v}=\dfrac{1}{f}+\dfrac{1}{u}\\\\\dfrac{1}{v}=\dfrac{1}{(7.5)}+\dfrac{1}{(-10)}\\\\v=30\ m\)

The magnification of the object in mirror is given by :

\(m=\dfrac{-v}{u}\\\\m=\dfrac{-30}{-10}\\\\m=3\)

So, the distance of the image from the mirror and the magnification of the object are 30 m and 3 respectively.

If an object of 10kg has gained 300J of GPE, what height has the object gained

Answers

The height has gained gravitational potential energy.

a student thinks that the ball bearing falls through the liquid at a constant speed
explain how you could develop this experiment to determine if the ball bearing falls through the liquid at constant speed

Answers

By measuring the terminal velocity of the ball bearing and knowing the properties of the liquid and the ball bearing, the viscosity of the liquid can be calculated using Stoke's law.

What is the experiment that shows that the ball bearing falls through the liquid at constant speed?

The experiment you are referring to is commonly known as the Stoke's law experiment or the falling ball viscometer experiment.

In this experiment, a ball bearing (usually made of steel or glass) is dropped into a vertical tube filled with a liquid of known viscosity. The ball bearing falls through the liquid under the influence of gravity, but also experiences a viscous drag force due to the resistance of the liquid.

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suppose that 15 years from now, dr. currie directly images an earth-like planet around tau ceti, a nearby star with a mass equal to that of the sun and concludes that its semimajor axis is about 1.4 au. according to kepler's 3rd law of motion, the planet's orbital period is closest to ...

Answers

Super-Earth-sized exoplanet Tau Ceti e revolves around a G-type star. It is 0.538 AU away from its star, with a radius of 0.538 AU, has a mass of 3.93 Earth masses, has a mass of 3.93 Earth masses, has a mass of 3.93 Earth masses, has a mass 3.93 In 2017, word of its finding spread.

What's a planet, exactly?A celestial body that (a) circles around the Sun, (b) has sufficient mass to dissipate rigid body forces and assume a hydrostatic equilibrium shape (nearly round), and (c) has cleared the space inside and surrounding its orbit is considered a planet.The distance a planet is from the Sun tends to result in colder surface temperatures on planets. The exception is Venus, which is the hottest planet in our solar system due to its close closeness to the Sun and its thick atmosphere. The results of calculations and simulations show that Mercury is, on average, the planet that is closest to Earth and to every other planet in the solar system.

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The distance between earth and sun is 15000000km. Light takes 499 seconds to reach earth from sun. Calculate the speed of light from the data provided. Mention the unit as well.

Answers

Answer:

The speed of light is 30,060,120.24048 m/s.

Explanation:

15000000 km into m

1 km = 1000m

15000000 km = 15000000 × 1000 m

= 15000000000m

speed = distance travelled / time taken

or, speed = 15000000000/499 m/s

so, speed = 30,060,120.24048m/s

To solve the problem we must know about the relationship between Speed, distance, and Time.

What is the relationship between Speed, distance, and Time?

We know that sped, distance, and time all are in a relationship to each other. this relationship can be given as,

\(\rm{Speed = \dfrac{Distance}{Time}\)

The speed of the light is 30,060.12 km/sec.

Given to us

The distance between the earth and the sun is 15000000km Light takes 499 seconds to reach earth from the sun.

We know that speed can be described as,

\(\rm{Speed = \dfrac{Distance}{Time}\)

Therefore,

What is the speed of the light?

\(\text{Speed of light} = \dfrac{\text{Distance between the earth and the sun}}{\text{Time taken by the light to travel the distance}}\)

Substitute the value,

\(\text{Speed of light} = \dfrac{15,000,000\ km}{499\ seconds}\)

\(\text{Speed of light} = 30,060.12\ km/sec\)

Hence, the speed of the light is  30,060.12 km/sec.

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What is the velocity of the rock after 3.00 seconds (the rock is falling from a cliff)

Answers

Answer:

29.4 m/s

Explanation:

Using the formula: V=Vi + g.t

where V: final velocity, this is  what you want.

Vi: initial velocity, equals to zero as it is falling from rest.

g: acceleration due to gravity = 9.8

t: time, which equals 3 sec.

what is the relationship between harmonics and resonance frequency in a piano

Answers

Fundamental and Harmonics
Most vibrating objects have more than one resonant frequency and those used in musical instruments typically vibrate at harmonics of the fundamental. A harmonic is defined as an integer (whole number) multiple of the fundamental frequency.

There is direct relationship between harmonics and resonance frequency.

A harmonic is a wave with a frequency that is a positive integer multiple of the frequency of the original wave whereas, resonance frequency is the frequency at which the oscillation reaches to its maximum point. The lowest resonant frequency is known as the fundamental, while on the other hand, the higher resonant frequencies are called overtones. All resonant frequencies are multiples of the fundamental, and are called harmonics. So we can conclude that there is a direct relationship between harmonics and resonance frequency.

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An electric field of constant magnitude ???? is tangent everywhere to a curved surface of area ????. What is the electric flux through the curved surface?a) Zerob) EAc) –EAd) 2EAe) Not enough information

Answers

The electric flux through the curved surface is given by Φ = EA, which is option (b).

The electric flux through a closed surface is defined as the total electric field passing through that surface. In this case, we have a curved surface with a constant electric field tangent to it.

The formula for electric flux is given by Φ = ∫E⋅dA, where Φ is the electric flux, E is the electric field, and dA is the differential area vector.

Since the electric field is tangent to the surface, we can write E⋅dA = E dA cosθ, where θ is the angle between the electric field and the differential area vector. Since the electric field and the differential area vector are parallel, θ = 0, and cosθ = 1. Thus, E⋅dA = EdA.

The integral then simplifies to Φ = E ∫dA = EA, where A is the total area of the curved surface.

Therefore, the electric flux through the curved surface is given by Φ = EA.

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How is mercury barometer constructed ?

Answers

Answer:

A  mercury barometer is a device use to measure stomspheric pressure and is constructed as following:

A mercury barometer requires a tube which has one close end, and one open end.Tube is placed upside down in a beaker in such a way so that one end open in the beaker and the other remain outside of the beaker. The barometric liquid (mercury) is then filled in the tube by pouring mercury liquid in the beaker.

The position of tube creates vacuum between the closed end of the tube and liquid surface and the Mercury has high density that is why used as the liquid to measure pressure.

I'm walking 1.6m/s to 7-11 and it started to rain so I sped up to 2.7m/s in 1.2
seconds. What is my acceleration?
a=(vf-viyt
-0.92m/s2
O 01.1m/s2
0.92m/s2
1.1m/s2
1 points
Save A

I'm walking 1.6m/s to 7-11 and it started to rain so I sped up to 2.7m/s in 1.2seconds. What is my acceleration?a=(vf-viyt-0.92m/s2O

Answers

Answer:

Explanation:

\(a = \frac{v_f-v_0}{t}\) which is the final velocity minus the initial velocity in the numerator, and the change in time in the denominator.  For us:

\(a=\frac{2.7-1.6}{1.2}\) so

a = .92 m/s/s (NOT negative because you're speeding up)

An object with a mass of 2.0 kg accelerates 2.0 m/s2 when an unknown force is applied to it. What is the amount of the force?​

Answers

Answer:

4 Newton’s

Explanation:

Which arrow correctly indicates the direction of friction acting on the box?

Which arrow correctly indicates the direction of friction acting on the box?

Answers

Answer: \(F_4\)

Explanation:

The friction opposes motion. We can assume the motion to be downwards because the only force is the weight of the box mgsin(theta) aka F3.

Arrow 4 correctly indicates the direction of friction acting on the box.

What is the friction force?

It is a type of opposition force acting on the surface of the body that tries to oppose the motion of the body. its unit is Newton (N).

Mathematically it is defined as the product of the coefficient of friction and normal reaction.

On resolving the given force and accelertaion in the different components and balancing the equation gets.

Friction is a force that resists motion. Because the only force acting on the box is its own weight, we may conclude it is moving downhill. As the force approach the downhill the friction force is acting opposite to it.

Hence, arrow 4 correctly indicates the direction of friction acting on the box.

To learn more about the friction force refer to the link;

https://brainly.com/question/1714663

#SPJ2

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