a sustained measured exposure dose of 280 msv/hr was measured 100 m from a source. the evacuation zone was set at 35 km from the source. estimate the exposure rate at 35 km from the source.

Answers

Answer 1

If a sustained exposure dose of 280msv/hr was measured 100m from a source , then the exposure rate at 35km from the source is 8 msv/hr   .

The Exposure Rate is defined as the amount of ionizing radiation per hour in a person's vicinity , whereas the dose rate is biological effect on  body from exposure to that radiation .

it is given that , exposure rate = 280msv/hr when

distance from source is = 100 m ,

we need to find the exposure rate when the distance is 35 Km from the source ;

we know the formula , that

F = Γ × α/r  , where F = exposure rate , Γ = exposure rate constant ;

r = distance .

substituting the values ,

we get ;

280 = Γ × α/100   ....equation(1)  ;

F = Γ × α/35000    .....equation(2) ;

dividing equation(10 by equation(2) , we get ;

280/F = 35

simplifying further , we get ;

F = 280/35 = 8 msv/hr .

Therefore , the exposure rate is 8 msv/hr  when the source is 35 km from the source .

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Related Questions

6. Find the acceleration of a 25kg crate man pushing it with 45N force?​

Answers

Answer:

1.8m/s2

Explanation:

force=mass x acceleration

so,

acceleration=force /mass

=45/25

=1.8

1. What are the effects of weather and climate on the picture?



2. What are 3 potential solutions to the problem in the picture?



3. How could a scientist model the problem and test different solutions to find the most effective fix?

1. What are the effects of weather and climate on the picture?2. What are 3 potential solutions to the

Answers

The effect of weather and climate on the picture is erosion. The 3 potential solutions to the erosion are Planting of a cover crop, Build Terraces, and Create diversions to Help Drainage.

What is erosion?

Erosion is defined as the washing away of the topmost portion of the soil which can occur due to natural causes or through the activities of man.

The natural causes of erosion is related to changes in weather and climate through rain, rivers, floods, lakes, and the ocean.

The three potential solutions to the problem of erosion include the following:

Planting of a cover crop: This helps in the prevention of erosion because the cover crops have root systems with different depths which helps the soil to absorb more water and hold the soil surface

Building of Terraces: This helps to prevent erosion by dividing slopes so that surface runoff is intercepted and carried to a protective outlet.

Creation of diversions to help drainage.

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Fossil fuels store energy from the sun as

question 5

Fossil fuels store energy from the sun asquestion 5

Answers

Answer:

Fossil fuels store energy from the sun as

Explanation:

Is number 2 correct??? Help

Is number 2 correct??? Help

Answers

Answer:

Yes

Explanation:

Yes, number 2 is correct

the manufacturer of a 12 v car headlight specifies it will draw a current of 6 a. you would like to check this claim with an ammeter designed to measure currents up to 10 a and having a resistance of 0.1 ohms. which of the two circuits in the attached figure represents a circuit where the ammeter correctly measures the current in the headlight?

Answers

Since an ammeter is meant to measure current and is a low resistance device, it is always connected in series with the circuit element through which current is to be measured.

What is electric current?

Current of a system is defined as the rate at which the electrons flow from a given point in the absolute electrical circuit.

a. Since, Current in two or more components connected in series is always the same. So circuit (a) will be used.

b. As per manufacturer's claim, resistance of bulb r = V /I.

= 12 /6 = 2 Ω.

Total resistance in circuit a,  R = 2 +0.1 = 2.1 A

Ammeter reading I' = V /R

= 12 /2.1 = 5.71 A

Which is close enough to claimed value of 6 A.

c. Now the bulb and ammeter are connected in parallel, so the voltage across both will be the same.

Current through ammeter I' = V /Ra = 12 /0.1 = 120 A

Which is 20 times greater than claimed value.

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The question is incomplete, but most probably the complete question is,

The manufacturer of a 12V car headlight specifies it will draw a current of 6A. You would like to check this claim with an ammeter designed to measure currents up to 10Aand having a resistance of 0.1 Ohms.

a)Which of the two figures represents a circuit where the ammeter correctly measures the current in the headlight?

b) How much current (in A) would flow in the ammeter for Circuit a?

c) How much current (in A) flows through the ammeter for Circuit b?

the manufacturer of a 12 v car headlight specifies it will draw a current of 6 a. you would like to check

Children on the autism spectrum are at risk for nutritional deficiencies because?

Answers

Explanation: Research highlights the individuals with ASDS are nutritionally vulnerable because they exhibit a selective or pick eating pattern and sensory sensitivity that predisposes them to restricted intakes.

I hope this helps!

HELP IM TIMED. ILL MARK BRAINLIEST PLSSSSSS.



A model rocket accelerates at 15.3 m/s2 with a force of 44 N.

Calculate the mass of the rocket. Round your answer to the nearest tenth of a kg.

The mass of the rocket is kg.

Fill in the blank above. Also what is the formula to find the mass. Include that in the answer pls.

Answers

Answer:

According to Newton's Second Law of Motion :    

Where,

F = Force Applied

m = Mass of the object

a = Acceleration

Now, we will use this law to solve this question.

Given :

Acceleration or a = 15.3 m/s²

Force = 44 N

Mass = ?

Substitute, the given values in the formula.

F = ma

⇒ m = F/a

   m = 44/15.3

m = 2.9 kg

Answer:

7.0 n

Explanation:

Two students are running in a race. Student 1 has more kinetic energy than student 2. Who will win the race?

Answers

Student 1 will win the race.
More kinetic energy= faster

The velocity of an object is it’s speed and __ of motion .

Answers

Answer:

direction should be the answer

velocity i’m pretty sure

Which of the following refers to the force of the earth pulling on an object? A Force B. Gravity C. Biomechanics Levers​

Answers

Answer:

B. Gravity

Explanation:

Earth pulling on an object is known as gravity.

What are the characteristics of metals? *

Answers

Metals are lustrous, malleable, ductile, good conductors of heat and electricity.

Answer:

Good conducters of heat and electricity. High melting points. high density. malleable. Ductile.

Explanation:

What is the smallest, most basic level of organization in an animal or
plant?

Answers

Answer:

hhmmmmmhmmmm hmhmmmm hmmm yeah i got nothing

Explanation:

A toy car has an initial velocity of 5 m/s and experiences a constant acceleration of 2.0 m/s2. How far does the toy car travel before reaching a velocity of 11 m/s? Write your answer to one decimal place.

Answers

Answer:t would be 17 m/s

If we use V2 = V1 + a*t

Sub in 5 for v1

2m/s*2 for a

And

6 for t

That should give you the answer.

One of the laws of motion states, an object in motion stays in motion unless an unbalanced force acts upon it. On earth, objects always seem to eventually come to a stop when more force is not being applied. What force is causing the objects to eventually stop moving?.

Answers

Answer: Friction

Explanation:

State Newton's three laws of motion in your own words and give an example for each one that helps to explain it in everyday life.

Answers

Answer:

The first law is an object won’t change its place unless a force hits it

The second law is the force on an object equivalent to the mass times its acceleration

The third law is when two object meet, they both apply forces on each other making them go in opposite directions

Explanation:

Consider an analog Bessel lowpass filter H(s) = 3/(s2 + 3s + 3). Use the bilinear transform to convert this analog filter to a digital filter H(z) at a sample rate of 2 Hz.

Answers

The Bessel lowpass filter is a filter that has a transfer function of H(s) = 3/(s² + 3s + 3). In this problem, we are going to use the bilinear transform to convert this analog filter into a digital filter, H(z), with a sampling rate of 2 Hz.

A digital filter is obtained from an analog filter by replacing 's' with the appropriate expression in 'z' which is given by the bilinear transformation. We'll use the following bilinear transformation formula:z = (2/T)(1-sqrt(1-T²s²/4))where T = 1/fS is the sampling period and fS is the sampling frequency.

Substituting the expression for z into the transfer function of H(s), we get:H(s) = 3/(s² + 3s + 3)  ----> H(z) = 3/(1 + 1.5(1-z⁻¹)/(1+z⁻¹) + 0.5(1-z⁻¹)²/(1+z⁻¹)²)Therefore, the digital filter is given by the transfer function:H(z) = 3/(1 + 1.5(1-z⁻¹)/(1+z⁻¹) + 0.5(1-z⁻¹)²/(1+z⁻¹)²).

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Question 2 of 27
A man is trying to drag a small tree that he cut down. If the static coefficient
of friction of the tree on the ground is 0.5 and the tree weighs 670 N, what is
the minimum amount of horizontal force that the man will need to apply so
that the tree will start moving?
A. 670 N
B. 230 N
C. 335 N
D. 465 N

Answers

Answer:

Explanation:

Newton's 2nd Law say that F = ma which is the sum of the forces acting on an object is equal to the object's mass times the acceleration at which it is moving. That means that the forces acting on this tree are F which is the Force the man needs to exert to move the tree, and f which is the force the tree is exerting in an effort to stay right where it is. That alters our 2nd Law equation to F - f = ma. BUT if the tree isn't moving, the acceleration is 0, making the whole right side of that equation go to 0. That means that F = f. Phew! Let's do that.

f = μ\(F_n\) where f is the frictional force, μ is the coefficient of static friction, and \(F_n\) is the weight of the object, which are given as 670 N. Filling in:

f = .5(670) so

f = 335 N (that is not using the rules of significant digits properly, but if you use them properly, the answer is not one of the choices, so...)

C is the one you want.

two thin lenses with 10.0-cm focal lengths at are mounted at opposite ends of a 30.0-cm long tube. an object is located 45.0 cm from one end of the tube. how far from the opposite end is the final image?

Answers

The final image is formed 30.0 cm (or 0.3 m) from the opposite end of the tube, where two thin lenses with 10.0-cm focal lengths are mounted at opposite ends of a 30.0-cm long tube and an object is located 45.0 cm from one end of the tube.

To solve this problem, we need to find the position of the final image using the lens formula and the given information. The lens formula is:

1/f = 1/do + 1/di

Where f is the focal length, do is the object distance, and di is the image distance. Since there are two lenses, we'll have to use this formula twice.

For the first lens (f1 = 10.0 cm), the object is located 45.0 cm away (do1 = 45.0 cm). Using the lens formula:

1/10 = 1/45 + 1/di1
Solving for di1, we get di1 = 18.0 cm.

Now, the second lens (f2 = 10.0 cm) is mounted at the opposite end of the 30.0 cm long tube, so the distance between the lenses is 30.0 cm. Since the image distance of the first lens is 18.0 cm, the object distance for the second lens (do2) is 30.0 - 18.0 = 12.0 cm.

Using the lens formula for the second lens:

1/10 = 1/12 + 1/di2
Solving for di2, we get di2 = 60.0 cm.

The final image is 60.0 cm from the second lens, which is at the opposite end of the 30.0 cm tube. Therefore, the final image is 60.0 - 30.0 = 30.0 cm from the opposite end of the tube.

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Need help ASAP please Thanks

Need help ASAP please Thanks

Answers

Answer: D
Explanation: there is less light at that point.

taking vtp measurement of pmos as an example, explain the idea on which the simple evaluation technique of vt is based.

Answers

The simple evaluation technique of VT is based on the idea that threshold voltage (VT) is equal to the gate voltage at which the inversion layer charge density is zero.

Explanation:

The simple evaluation technique of VT is based on the idea that threshold voltage (VT) is equal to the gate voltage at which the inversion layer charge density is zero. When measuring the threshold voltage of a PMOS device using the VTP method, a positive voltage is applied to the drain terminal and a negative voltage is applied to the source terminal. This causes the transistor to be turned off since the body is positively biased and the PMOS channel will not conduct current. A negative voltage is then applied to the gate, which is gradually increased.

The device is turned on when the threshold voltage is reached, and the inversion layer charge density is no longer zero. Therefore, the gate voltage at which the device is turned on is equal to the threshold voltage (VT). Thus, the VTP measurement technique for PMOS devices is based on the simple evaluation technique of VT, which is the gate voltage at which the inversion layer charge density is zero.

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Mathew throws a ball straight up in the air. it rises for a period of time and then begins to drop. At which points in the balls journey will be gravity be the greatest force acting on the ball​

Answers

Answer:   The greatest force of gravity on the ball will occur at the point when the ball is near to hit the ground ... hope this helps have a good day :P

The eliptical orbit of a satellite about its primary is shown below. Select all of the quantities that remain constant at the labelled locations (A,B,C,D). D a The tidal force on the satellite Ob. The kinetic energy of the satellite c. The mechanical energy of the satellite d. The work done by the force of gravitational attraction on the satellite D. The angular momentum of the site Of The gravitational potential energy of the satellite d

Answers

The angular momentum of the satellite remains constant at the labeled locations (A, B, C, D).

How do quantities change in orbit?

Let's analyze the quantities that remain constant at the labeled locations (A, B, C, D):

A. The tidal force on the satellite: This force depends on the gravitational gradient and the satellite's position relative to the primary. Since the position changes along the elliptical orbit, the tidal force is not constant. Therefore, it does not remain constant at any labeled location.

B. The kinetic energy of the satellite: The kinetic energy of the satellite changes as it moves along its elliptical orbit. It is highest at the perigee (closest point to the primary) and lowest at the apogee (farthest point from the primary). Therefore, it does not remain constant at any labeled location.

C. The mechanical energy of the satellite: The mechanical energy of the satellite is the sum of its kinetic energy and gravitational potential energy. Since both of these quantities change along the elliptical orbit, the mechanical energy is not constant at any labeled location.

D. The work done by the force of gravitational attraction on the satellite: The work done by the force of gravitational attraction is given by the change in gravitational potential energy. As the satellite moves along its elliptical orbit, the distance from the primary changes, causing the gravitational potential energy to vary.

Therefore, the work done by the force of gravitational attraction is not constant at any labeled location.

E. The angular momentum of the satellite: The angular momentum of the satellite remains constant throughout its motion if no external torques act upon it. This is known as the conservation of angular momentum. Therefore, the angular momentum remains constant at all labeled locations (A, B, C, D).

F. The gravitational potential energy of the satellite: The gravitational potential energy of the satellite changes as it moves along its elliptical orbit. It is highest at the apogee and lowest at the perigee. Therefore, it does not remain constant at any labeled location.

In summary, the quantities that remain constant at the labeled locations (A, B, C, D) are:

The angular momentum of the satellite.

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The image shows a landform created by Earth’s forces.

A dip in a mountain range between two plates.

Which describes this landform?

anticline
shearing
syncline
tension

Answers

The term that best describes the landform "dip in a mountain range" is C. Syncline.

Syncline is a term to refer to a fold of the Earth's crust caused by the tectonic effects of the earth's dynamics. A synclinal fold is characterized by being a concave fold, that is, in the shape of a U.

According to the above, answers A, B and D are not correct options because they refer to different shapes of the Earth. Therefore, the landform shown is syncline.

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The image shows a landform created by Earths forces.A dip in a mountain range between two plates.Which

Answer: C

Explanation: E2022

1. what are the three basic types of three-phase motors?

Answers

*AC Motors.
*DC Motors.
*Special Motors.

Hope this helps have an excellent day!

The three basic types of three-phase motors are :

1. Synchronous Motors

2. Induction Motors

3. Brushless DC Motors

Explanation:

Synchronous Motors: These motors rotate at a constant speed that is synchronized with the frequency of the power supply. They are used in applications where precise speed control is required, such as in electric clocks, timers, and other similar devices.

Induction Motors: These motors are the most common type of three-phase motor used in industrial and commercial applications. They work on the principle of electromagnetic induction and are robust, efficient, and relatively low-cost. Induction motors come in various types, including squirrel-cage, wound-rotor, and double-fed induction motors.

Brushless DC Motors: Also known as electronically commutated motors (ECMs), these motors have a permanent magnet rotor and a stator with multiple windings. They are highly efficient, have low maintenance requirements, and are used in a wide range of applications, including electric vehicles, industrial automation, and robotics.

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What problems would we have if Pascal had failed to give the Pascal's law? Write some points.

Answers

Hydraulic jacks, automobile brakes and even the lift generated on airplane wings can be explained using Pascal's principle. Pascal's principle is based on the idea that fluids at rest are incompressible, allowing very large forces to be transmitted with the application of a smaller force.

Answer:

Pascal's law states that a change in pressure at any point in an enclosed fluid is transmitted equally throughout the fluid.

Explanation:

Applications of Pascal's law include

>The hidden standard of the water powered jack and pressure driven press.  

>Power intensification in the slowing mechanism of most engine vehicles.  

>Utilized in artesian wells, water pinnacles, and dams.  

>Scuba jumpers must comprehend this rule. At a profundity of 10 meters submerged, pressure is double the environmental weight adrift level, and increments by around 100 kPa for each expansion of 10 m depth.[5]  

>Generally Pascal's standard is applied to bound space (static flow), however because of the consistent flow process, Pascal's rule can be applied to the lift oil instrument (which can be represented as a U tube with pistons on either end).

Without Pascal's law, none of the above could be possible.

3. We consider a conducting sphere of radius R consisting of two hemispheres. The upper hemisphere is kept at the potential V while the lower hemisphere is kept at the potential −V. We can use the Green function method to calculate the scalar potential ϕ. The Dirichlet Green function G p

(r,r ∗
) is given as follows: G D

(r,r ′
)= r 2
+r ′2
−2rr ′
cosγ

1

− r 2
r ′2
/R 2
+R 2
−2rr ′
cosγ

1

The r vector denotes the position of observation and the r ′
vector denotes the position of charges where γ is the angle between r and r ∗
. Using the above Green function. calculate the potential along the positive z-axis.

Answers

By integrating the given equation, we can find the potential ϕ as a function of z.

Let's consider a point P along the positive z-axis with coordinates (0, 0, z). To find the potential at point P, we integrate the Green function G_D(r, r') with respect to the charge distribution over the surface of the conducting sphere.

The potential ϕ at point P can be calculated using the following integral:

ϕ(P) = ∫∫ G_D(r, r') σ(r') dS

Here, σ(r') represents the charge density on the surface of the sphere, and dS represents the differential surface element.

Since we are interested in the potential along the positive z-axis, we can simplify the integral by considering the symmetry of the problem. Due to symmetry, the potential ϕ will only depend on the radial distance r from the z-axis. Thus, we can rewrite the integral as:

ϕ(P) = 2π∫ G_D(r, r') σ(r') r' dr'

Now, we need to express the charge density σ(r') in terms of the potential difference V and the radius R. The charge density on the upper hemisphere is V/(4πR^2), and on the lower hemisphere, it is -V/(4πR^2). Therefore, we can write:

ϕ(P) = (V/R^2) ∫ (r^2 + r'^2 - 2rr')/(r-r')^2 r' dr'

This integral can be evaluated using appropriate techniques of integration.

By integrating the above equation, we can find the potential ϕ as a function of z.

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How is a sound wave made by plucking a guitar string?.

Answers

Answer:

i have no clue

Explanation:

what is the most used muscle on humans ?

Answers

Answer:

the heart

Explanation:

Daily the heart pumps at least 2,500 gallons (9,450 liters) of blood. The heart has the ability to beat over 3 billion times in a person's life.

The Heart is the most used muscle on a human

Basic design elements include (Check 7)
What are the 3 properties of color? Immersive Reader

depth, shade, fragrance
value, hue, depth
saturation, hue, chroma
hue, value, intensity

Answers

Answer: depth, shade, fragrance

Explanation:

by which element are gamma rays produced

Answers

Answer: Some elements like potassium, uranium, and thorium are naturally radioactive and give off gamma rays as they decay, but all elements can be excited by collisions with cosmic rays to produce gamma rays. The HEND and Neutron Spectrometers on GRS directly detect scattered neutrons, and the Gamma Sensor detects the gamma rays.

Explanation: searching

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what is debugging ideas The tone of the short story is most closely described asO A. friendlyO B. cheerfulO C. frighteningD. mysterious If log 3(x)=5,log 3(y)=3, and log 3(z)=9, what is log 3[ z 3(xy) 2 ]? (Your answer should be an integer.) log 3[ z 3(xy) 2]= Let f(x)=e x1+2ln(x)+3x. You may assume that f(x) is one-to-one. What is f 1(4) ? (Your answer should be a positive integer.) f 1(4)= The decibel level for the intensity of a sound is a logarithmic scale defined by D=10log 10(I)+120, where I is the intensity of the sound in watts per square meter. Express I as a function of D. (Express numbers in exact form. Use symbolic notation and fractions where needed.) When D increases by 22 , the intensity increases by what factor? (Use decimal notation, Give your answer to one decimal place.) intensity increases by: 21. You are placing a circular drawing on a square piece of poster board. The poster board is 15 in wide. The part of the poster board not covered by the the function drawing will be painted blue. If the radius of the drawing is r, A = 225 - 3.14r^2 gives the area to be painted blue. a. Graph the function. b. What x-values make sense for the domain? Explain why. c. What y-values make sense for the range? Explain why(i need help) The cylinder below has a cross-sectional area of 18cm.What is the volume of the cylinder?If your answer is a decimal, give it to 1 d.p. and remember to give the correct units. Create a program named TipCalculation that includes two overloaded methods named DisplayTipInfo.One should accept a meal price and a tip as doubles (for example, 30.00 and 0.20, where 0.20 represents a 20 percent tip).The other should accept a meal price as a double and a tip amount as an integer (for example, 30.00 and 5, where 5 represents a $5 tip).Each method displays the meal price, the tip as a percentage of the meal price, the tip in dollars, and the total of the meal plus the tip. Include a Main() method that demonstrates each method.For example if the input meal price is 30.00 and the tip is 0.20, the output should be: How does location and geography support economic development? rediger incorporated a manufacturing corporation, has provided the following data for the month of june. the balance in the work in process inventory account was $30,000 at the beginning of the month and $21,000 at the end of the month. during the month, the corporation incurred direct materials cost of $56,600 and direct labor cost of $30,400. the actual manufacturing overhead cost incurred was $53,800. the manufacturing overhead cost applied to work in process was $52,600. the cost of goods manufactured for june was: multiple choice $140,800. $148,600. $149,800. $139,600. need answer with explanation. ThanksAssume an H&R Block Canada location had a fixed cost of $12,000 to coverduring tax filing season, and variable costs for each service of $29. What wouldthe break-even point be for professional services of (a) $109, (b) $69, and (c) $39? A bank system mainframe is struck by a DDoS attack and goes offline. Customers cannot log on to their accounts. Which element of C.I.A. has been violated? Help asap thank you so much I rlly need help someone pls help For each example, identify whether the property described is chemical or physical.Justify your answer in each case.(a) Bronze metal has a shiny lustre.(b) When silver nitrate is added to calciumchloride, a cloudy solid (precipitate)appears.(c) Mercury is liquid at room temperature. The history of sports probably started as _________.cricketmilitary trainingjoustinggladiators If Philip's utility function is U=4(q1)0.5+q2. what are his demand functions for the two goods? Let the price of q1 be p1, let the price of q2 be p2, and let income be Y. Philip's demand for q1 as a function of p1 and p2 is q1= and his demand for good q2 is a2= (Property format your expressions using the tools in the palette. Hover over fools to seo keyboard shortcuts. Eg., a subscript can be created with the character.) Which of the following sentences has a mistake? 1. I had an unbelievably stressful weekend. 2. I had to find a new job, to help my friend move and to buy groceries for the week. 3. Luckily I was able to get everything dome. 4. However, today Im exhausted. Franklin can jog approximately 2,000 meters in 4 minutes. Express this rate as a unitrate.I need it in step by step The sum of 3 consecutive even numbers is 72 what is the smallest of the three numbers In both photosynthesis and respiration, protons are pumped across a membrane during a. electron transport. b. photolysis. c. CO2 fixation. Identify the ironies found in "lady luncheon club," and discuss how the use of irony contributes to the overall impact and meaning of the poem Exercise 3 Insert an adjective clause to modify the noun or pronoun in italics.Our first assignment,________________ , was due on Tuesday.