Answers
Answer:
Fraction = 59049/60025
Explanation:
Let m be the mass of the neutron and M be the mass of the plutonium nucleus (at rest)
Now, formula for kinetic energy before collision is;
K_i = ½mu²
Formula for kinetic energy after collision is;
K_f = ½mv²
Where;
u is the velocity of the neutron before collision
v is the velocity of the neutron after collision.
From collision principle where momentum before collision equals momentum after collision, we can say that;
(m - M)u = (m + M)v
Thus,
v = [(m - M)u]/(m + M)
Putting [(m - M)u]/(m + M) for v in the final kinetic energy equation gives;
K_f = ½m([(m - M)u]/(m + M))²
K_f = ½mu²((m - M)²/(m + M)²)
To get the fraction of the neutron's kinetic energy is transferred to the plutonium nucleus, it is simply;
K_f/K_i = [½mu²((m - M)²/(m + M)²)]/½mu²
This gives;
K_f/K_i = ((m - M)²/(m + M)²)
But mass of plutonium = 244m
Thus;
K_f/K_i = ((m - 244m)²/(m + 244m)²)
K_f/K_i = 59049m²/60025m²
K_f/K_i = 59049/60025
Related Questions
What is the reactive force when a fish swims through water
Answers
The reactive force when a fish swims through water is the force of the water on the fish. This is an example of Newton’s third law of motion which states that for every action, there is an equal and opposite reaction. The active force is the fish pushing against the water, so the reactive force would be the reverse, the equal force of the water pushing back on the fish.
g You are following 25 m behind another car on the highway while talking on the cell phone. Both you and the other car initially have a constant speed of 110 km/hr. You being to argue with the person on the phone and become distracted from the road for 2 seconds. At the beginning of that two seconds, the other car sees something in the road ahead and begins to break hard, at 5 m/s2 . (a) How far apart are the two cars when your attention returns to the road
Answers
Answer:
Δx = 10 m
Explanation:
For this problem we can calculate the distance traveled by each car in the time of 2 s
let's reduce the speed to the SI system
v = 110 km / h (1000m / 1 km) (1 h / 3600 s) = 30.556 m / s
Cart 1
this car has constant speed
v = x₁ / t
x₁ = v t
x₁ = 30,556 2
x₁ = 61.11 m
This car is that of the person with the cell phone
Cart 2
this car has an acceleration of a = 5 m / s²
x₂ = v₀ t - ½ a t²
x₂ = 30,556 2 - ½ 5 2²
x₂ = 51,112 m
The difference in distance between the two vehicles is
Δx = x₁ - x₂
Δx = 61.11 - 51.11
Δx = 10 m
The gravitational force between two bodies varies inversely as the square of the distance between them. If the force between two bodies is 18 N when the distance between them is 10 km, find the fource between the bodies when the distance between them is 7.5 km.
Answers
The statement states that the force between both the bodies at a distance of 7.5 km equals F = 32 N.
What is gravitational force?This force that earth applies to a body is referred to as gravitational force. Its down motion of water in the river, the downwards motion if water in a stream, or an upwards motion of a ball being thrown are examples of motion brought on by gravitational influence.
Briefing:F = k/d² where k is the inverse variation's constant.
18 N = k / (10 km)²
18 N = k / 100 km²
k = (18 N) (100 km²)
k = 1800 (N)(km²)
F = ?
d = 7.5 km
k = 1800 (N) (km²)
F = 1800 (N)(km²) / (7.5 km)²
F = 1800 (N) (km²) / (55.25 km²)
F = 32 N
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A student is using two circuits to investigate power consumption. She connects two identical light bulbs in series in one circuit and in parallel in the second circuit. What should she measure to calculate which configuration uses more power?
Responses
A The resistance of the bulbs and the potential difference of the battery.The resistance of the bulbs and the potential difference of the battery.
B The current flowing into each bulb and the potential difference across each bulb.The current flowing into each bulb and the potential difference across each bulb.
C The current flowing out of the battery and the resistance of each bulb.The current flowing out of the battery and the resistance of each bulb.
D The potential difference of the battery and the resistance of the battery.
Answers
The potential difference across the each bulb and the current entering each bulb.
What occurs if you connect two light bulbs in series?Each bulb in a straightforward parallel circuit receives the entire battery power. This is explains why the parallel circuit's lights will shine stronger than the series circuit's. The parallel circuit also has the benefit of maintaining an electricity even if one loop is disconnected.
When are two identical bulbs linked in both series and parallel?The same brightness is produced when two identical bulbs are linked in parallel as it is when they are connected in a series, which is why.
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You work with a catering firm and have been given a challenge. By emptying several liquid beverage dispensers, you have to rank them in order of their content (which one is fullest, next fullest, etc.) Having had a physics class, you simply open the horizontal spouts all from the same height and compare where the streams land on the ground below. In terms of how far each stream lands from the jug, which of the following statements is correct:
Option A: The pressure (and hence water level) is lower when the speed is lower. Lower speeds result in smaller ranges and the streams will land closer to the jug.
Option B: The pressure (and hence water level) is higher when the speed is lower. Lower speeds result in smaller ranges and the streams will land closer to the jug.
Option C: The pressure (and hence water level) is lower when the speed is lower. Lower speeds result in larger ranges and the streams will land closer to the jug.
Option D: Water speed has no effect on pressure.
Answers
The correct statement is B. "The pressure (and hence water level) is lower when the speed is lower. Lower speeds result in smaller ranges and the streams will land closer to the jug".
What is Bernoulli's principle?According to Bernoulli's principle, which applies to fluids in motion, when the speed of a fluid increases, its pressure decreases. This means that if the fluid is flowing out of a container at a high speed, the pressure in the container will be lower than if the fluid was flowing out at a lower speed.
So, in this scenario, if the dispenser with the fullest content is opened and the liquid flows out at a high speed, the pressure in the dispenser will be lower, resulting in the liquid traveling further away from the dispenser and landing further away from the jug. Conversely, if the dispenser with the least amount of content is opened and the liquid flows out at a low speed, the pressure in the dispenser will be higher, resulting in the liquid traveling a shorter distance and landing closer to the jug.
Therefore, the pressure (and hence the water level) is lower when the speed is lower, and lower speeds result in smaller ranges, and the streams will land closer to the jug.
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5kg object with two forces acting on it: 8N to the right and 3N to the left. calculate the acceleration of the object
Answers
Answer:
a = 1 m/s^2
Explanation:
if we assume that right is the positive x direction and y is the negative x-direction then we get:
Fr = 8N
Fl = -3N
We then find the net force acting upon the object
Ft = Fr + Fl
Ft = 8N - 3N
Ft = 5N
After we find net force acting upon the object we can then use Newton's 2nd Law to find its acceleration.
Ft = m*a
Isolate accerleration
a = Ft / m
a = 5N / 5kg
a = 1 m/s^2
A truck with 28-In.-diameter wheels is traveling at 45 mph.
How many revolutions per minute do the wheels make?rpm
What is the angular speed of the wheels In radians/min?rad/min
Round answers to 2 decimal places
Answers
Answer:
To find the number of revolutions per minute (RPM) the wheels make, we first need to find the circumference of the wheel. We can use the equation:
Circumference = 2 * pi * radius
The diameter of the wheel is 28 inches, so we can find the radius by dividing the diameter by 2:
Radius = 28 inches / 2 = 14 inches
Now we can find the circumference of the wheel:
Circumference = 2 * pi * 14 inches = 87.96 inches
To find the number of revolutions per minute, we need to know how many inches the wheel travels in one minute, we can convert 45 mph to inches per minute by multiplying 45 mph by 1.46667 (1 mph = 1.46667 inches/s)
inches per minute = 45 * 1.46667 = 66.00015 inches
So we can find the number of revolutions per minute by dividing the distance traveled per minute by the circumference of the wheel:
RPM = inches per minute / circumference
RPM = 66.00015 inches / 87.96 inches = 0.75 rev/min
To find the angular speed of the wheels in radians per minute, we can use the equation:
Angular speed = 2 * pi * RPM
Angular speed = 2 * pi * 0.75 rev/min = 4.71 rad/min
So the angular speed of the wheels in radians per minute is 4.71 rad/min (rounded to 2 decimal places)
Which one these statements describes how to typically tell the difference
between a synthesis (S) reaction and a decomposition (D) reaction?
Tap to select or deselect answer.
An S reaction has one product and two or more reactants and a D reaction
has one reactant and two or more products.
An Sreaction has one reactant and two or more products and a D reaction
has one product and two or more Reactants.
An S reaction has oxygen as a reactant and a Dreaction has oxygen as a
product
An S reaction has oxygen as a product and a D reaction has oxygen as a
reactant
Answers
Answer: An S reaction has one product and two or more reactants and a D reaction has one reactant and two or more products.
Explanation:
In a synthesis reaction, two or more simple molecules or substances interact to form a more sophisticated product. (General equation: A + B → AB)
When one reactant decomposes into two or more products, this is known to as a decomposition reaction. (General equation: AB → A + B)
A float starts 9.2 m west of a grand stand ( the origin ) for the parade . It heads towards the grandstand at the rate of 1.5m/s . Where is the float located at 3.5s?
Answers
The float is 3.95 m west of the grandstand after 3.5 s of its start.
What is Distance in relation with physics?The distance is defined as the total length of the path taken by a moving body in order to reach the final position starting from initial position. Mathematically -
Distance [d] = Speed [s] x time [t]
Given that a float starts from 9.2 m west of a grand stand for the parade with the speed of 1.5 m/s. Therefore we can write -
Speed [s] = 1.5 m/s
Distance between float and grandstand [D] = 9.2 m
The location of the float after 3.5 seconds of its start is as follows-
d = s x t
d = 1.5 x 3.5
d = 5.25
Therefore -
Distance between the float and the grandstand after 3.5 seconds of its start = D - d = 9.20 - 5.25 = 3.95 m
Therefore, the float is 3.95 m west of the grandstand after 3.5 s of its start.
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How long will it take a deer to run 1.6 km traveling at a velocity of 8.4 m/s north?
Answers
Assuming that the deer is traveling at a constant velocity, we use the following formula.
\(d=vt\)Where d = 1.6 km and v = 8.4 m/s. The velocity is positive because it's going North.
\(\begin{gathered} 1.6\operatorname{km}=8.4(\frac{m}{s})\cdot t \\ t=\frac{1.6\operatorname{km}}{8.4(\frac{m}{s})} \end{gathered}\)But, we have to transform the distance from kilometers to meters. We know that 1000 meters are 1 kilometer.
\(1.6\operatorname{km}\cdot\frac{1000m}{1\operatorname{km}}=1600m\)Once we transform the unit, we can find the time.
\(\begin{gathered} t=\frac{1600m}{8.4(\frac{m}{s})} \\ t\approx190.48\sec \end{gathered}\)Therefore, the deer will take 190.48 seconds, approximately.How much force in Newtons is required to accelerate a 5 kg bowling ball at 2 m/s²?
O 3 N
O 7 N
O 10 N
O 2.5 N⁰
Answers
you have to multiply 5kg x 2m/s^2 which gives you 10N
Formula: F=ma
charge of one of electron is 1.6022×10*-19 coulomb. what is the total charge on 1 mole of electrons
Answers
There are
\(6.023 \times {10}^{23} \)
electrons in a mole. So charge of 1 mole electron is
\(6 \times {10}^{23} \times ( - 1.6022) \times {10 }^{ - 19} \)
Janet’s science teacher assigns Janet her classmates
Answers
The best investigation would be use a different amount of mass in the cart for five different trials, and measure the force needed to start the cart rolling each time.
Speed is not directly impacted by mass. It establishes how quickly an object can increase its speed (accelerate) in response to a specific force. Lighter objects change their speed by a given quantity with a given force in a shorter amount of time.
More mass means that heavier items are more challenging to move and stop. Greater mass in heavier items makes them more resistant to change than lighter ones. A bicycle or a Cadillac can be propelled or stopped once in motion. It is more difficult to start or stop an object the more big it is (has more inertia). Potentially, an object with the same kinetic energy could also be slower and heavier.
Kinetic Energy's formula is KE = 1/2 mv2. Because mass and kinetic energy are directly correlated, an object's kinetic energy rises as mass does. The same may be said for velocity.
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Hi
Please help on question asap if the answer is correct I'll rate you five stars a thanks and maybe even brainliest!
When two light bulbs are connected in series, the resistance in the circuit is increase compared to that with one lightbulb. The increased resistance opposes the flow of current so far fewer electrons pass per second , transferring less energy. The lightbulbs are therefore not as bright as In a circuit with same voltage but only one bulb.
However, when Two lightbulbs are connected in parallel, each loop behaves like a separate circuit . The resistance in each branch is the same as if there were just one light bulb in the whole circuit.there is the same current in each branch of the circuit ,so the bulbs Will light up with the same brightness as a single bulb circuit. The energy stored in the battery will decrease twice as quickly and battery will run out faster than I series circuit.
6) explain the advantages and disadvantages of arranging components in series or parallel.
Answers
Advantages of Components Arranged in Series:
1. Increased resistance: Connecting components in series increases the overall resistance in the circuit. This can be advantageous in situations where you want to limit the flow of current or control the amount of power being dissipated.
2. Voltage sharing: In a series circuit, the total voltage of the power supply is divided among the components. This can be useful when you want to ensure that each component receives a specific voltage.
3. Current consistency: The current remains the same throughout the series circuit, which can be beneficial when you need to ensure a consistent current flow through multiple components.
Disadvantages of Components Arranged in Series:
1. Reduced brightness or performance: As mentioned in the question, when light bulbs are connected in series, the increased resistance reduces the flow of current, resulting in dimmer bulbs or reduced performance in other electrical devices.
2. Single point of failure: If one component in a series circuit fails, it can disrupt the entire circuit and cause all components to stop functioning.
Advantages of Components Arranged in Parallel:
1. Brightness and performance: When components such as light bulbs are connected in parallel, each component receives the full voltage, resulting in brighter bulbs and better performance in other devices.
2. Redundancy: In a parallel circuit, if one component fails, the other components can continue to function independently. This provides redundancy and ensures that the failure of one component does not affect the others.
3. Increased current capacity: Parallel arrangement allows the circuit to handle higher currents, which can be useful in situations where high power or heavy loads are required.
Disadvantages of Components Arranged in Parallel:
1. Increased complexity: Parallel circuits require more wiring and connections, which can make the circuit more complex and harder to manage.
2. Higher cost: Parallel circuits may require more components and wiring, resulting in higher costs for materials and installation.
It's important to consider the specific requirements and constraints of the application when deciding whether to arrange components in series or parallel. Each configuration has its advantages and disadvantages, and the choice depends on factors such as desired current flow, voltage distribution, and reliability.I
Fundamental Problem 12.28
The car is traveling along the road with a speed of v=(|l2 s) m/s, where s is in meters. (Figure 1)
Part A
Determine the magnitude of its acceleration when s=11 m.
Express your answer to three significant figures and include the appropriate units.
Answers
The acceleration of the car in three significant figures is 0.181 m/s².
What is the acceleration of the car?
The acceleration of the car is calculated by applying the following kinematic equation as shown below.
v² = u² + 2as
where;
v is the final velocity of the caru is the initial velocity of the cara is the acceleration of the cars is the distance travelled by the carThe given parameters include the following;
the final velocity of the car = 2 m/s
the distance travelled by the car = 11 m
The acceleration of the car is calculated as follows;
v² = u² + 2as
v² = 0 + 2as
a = v² / 2s
a = ( 2² ) / ( 2 x 11 )
a = 0.181 m/s²
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The first bag you load into your vehicle from the pick-stage cart is the first bag you need to open on your route.
Answers
The given statement is false because the first bag you load into the vehicle will be at the bottom during the trip.
During a pick-stage cart, the first bad you load into the vehicle is always placed on the bottom, while subsequent bags are arranged on top of the first bag, all inside the vehicle.
At any point on your route, any bad you tend to open becomes the last bag you load into the vehicle because the first bag is far below the bottom.
Thus, we can conclude that the given statement is false because the first bag you load into the vehicle will be at the bottom during the trip.
"Your question is not complete, it seems to be missing the following information";
The first bag you load into your vehicle from the pick-stage cart is the first bag you need to open on your route. False/True
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Which bibliographic description for a book is correct, based on the Harvard Method in your study guide?
Answers
An annotated bibliography is a list of citations to books, articles, and documents. Each citation is followed by a brief descriptive and evaluative paragraph, the annotation. The purpose of the annotation is to inform the reader of the relevance, accuracy, and quality of the sources cited.
The cue column is typically located on the left-hand side of the page and is used to jot down keywords or questions that serve as cues for recalling the main points of the lecture or reading. The note-taking area is located on the right-hand side of the page and is used to write down detailed notes about the lecture or reading.
The summary section is located at the bottom of the page and is used to summarize the key points of the notes. Overall, the Cornell method is an effective way to organize and retain information during lectures and readings.
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give an example of a normal force. type below.
Answers
Normal force is the force exerted when an object is on an surface. So an example could be a pile of books on top of a table.
If a measurement is 4.2 cm and its possible error is 0.04 cm, the relative error is?
Answers
Given the value of possible error, the relative error of the measurement is 0.0095.
Given the data in the question;
Measurement taken; \(m = 4.2cm\)Absolute or possible erorr; \(e = 0.04m\)Relative error; \(RE = \ ?\)Relative ErrorRelative error is simply the ratio of the absolute or possible error of a measurement to the measurement its self.
Relative error is expressed as;
\(RE = \frac{e}{m}\)
Where e is the absolute or possible error and m is the measurement being taken.
To determine the relative error, we substitute our given values into the expression above.
\(RE = \frac{0.04cm}{4.2cm} \\\\RE = 0.0095\)%
Therefore, given the possible error, the relative error of the measurement is 0.0095.
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HELP PLEASE I need to finish this asap
Answers
Answer:
I'm not 100% sure, but I think the answer would be the first one because there's a force pushing the object in every direction, so they would cancel eachother out and make the object stay in the same place.
Explanation:
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PLEASE HELP! QUICKLY!!
Answers
Wind Energy >> Uses groups of turbines to harness power from moving air, Solar Energy >>Can easily be harnessed by homeowners and businesses, Hydropower Energy >> Partly relies on the water cycle to provide its source and Biomass Energy >>Comes from organic plant and animal material
Understanding Different types of EnergyWind Energy
Uses groups of turbines to harness power from moving air
It involves the use of wind turbines to convert the kinetic energy of moving air into electricity.
Solar Energy
Can easily be harnessed by homeowners and businesses
Homeowners and businesses can install solar panels on rooftops or open spaces to harness energy from the sun and convert it into electricity for their own use.
Hydropower Energy
Partly relies on the water cycle to provide its source
Hydroelectric power relies on the movement of water, driven by gravity, to spin turbines.
Biomass Energy
Comes from organic plant and animal material
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It is useful to use a _________ to demonstrate how an electric circuit works
Answers
It is useful to use a model in order to demonstrate how an electric circuit works.
What is a model?In science, a model is a graphical representation that my result useful to predict the behavior of the components of a given system that works together to produce a particular outcome.
For example, an electrical circuit can be modeled by taking into account resistance, voltage, and intensity as parameters of functioning.
The electrical circuits are graphically represented by modeling the movement or flow of negatively charged electrons (e-) from the negative pole to the positive pole of a closed electric circuit.
In conclusion, it is useful to use a model (ie., a scientific model) to demonstrate how an electric circuit works.
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what type of path do people in the plane observe that the pack follows?
Answers
Answer:
As can be seen from the above animation, the package follows a parabolic path and remains directly below the plane at all times.
Explanation:
hope it helps
Edge. Lab : Electromagnetic Induction
Answers
We have that the the Electromagnetic induction is given as
Electromagnetic induction is the manufacturing of an mobile electric charge pressure throughout a conductor in a altering magnetic field
From the question we are told
Electromagnetic InductionElectromagnetic InductionGenerally
This bases its theory on the use of magnetic bodies to generate or induce electric charge
Electromagnetic induction is the manufacturing of an mobile electric charge pressure throughout a conductor in a altering magnetic field
Hence we have that in complete the table you consider the Electromagnetic induction theory
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Which is a component of skill-related fitness?
Flexibility
Reaction time
Muscular strength
Body Composition
Answers
Answer:
B. Reaction Time
Explanation:
Reaction Time is the amount of time it takes to respond to anything.
How much work can an engine do in 15 minutes if it generates 22 MW of power and has a mass of 330 kg? *
Answers
Answer: 1/gk
Explanation: 15(22/330kg) (330/330gk) = 1/gk
20 POINTS
In order to maximize the acceleration of an object, one should
maximize the mass
maximize the force
minimize the velocity
maximize the inertia
Answers
a plane wall is 250mm thick and it's wall area is 4.5m^2. if the thermal conductivity is 9.35w/m°c and surface temperature are steady at 150°c and 40°c. calculate the heat flow across the plane wall and the temperature gradient in the flow direction
Answers
The temperature gradient in the flow of direction is 294525 W.
What is Temperature gradient?A temperature gradient is the gradual variance in temperature with distance. The slope of the gradient is consistent within a material. A gradient is established anytime two materials at different temperatures are in physical contact with each other.
Q= T/( L/ KA)
Q= ( 1500 − 450) / 0.15 / 9.35v * 4.35)
= 294525 W
Units of measure of temperature gradients are degrees per unit distance, such as °F per inch or °C per meter.
Many temperature gradients exist naturally, while others are created. The largest temperature gradient on Earth is the Earth itself. Q= T/Ka.
Therefore, The temperature gradient in the flow of direction is 294525 W.
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1 The displacement of a "spring + mass" system in simple harmonic motion on a frictional less surface can be described by the expression x = A cos(3rt/T). The spring constant is k and the mass is m. Describe the potential as well as the kinetic energies of the system at the following time instances. (a) At t = 0. [2] (b) At t = T. [2] (c) At t = T/6. [2] (d) At t= T/3. [2] (e) At t = T/2. [2]
Answers
The potential and kinetic energy of the system at the following time instances is zero and maximum.
From the given,
The displacement of the system is, x = A cos(3πt/T)
1) At t =0, the displacement of the system is given by, x = cos(3π×0/T)= cos(0) = 1. The displacement is maximum at t=0. Hence, the potential energy is maximum and kinetic energy is zero.
2) At t=T, the displacement, x = cos(3πT/T)= cos(3π) = -1. The displacement is minimum and hence, the potential energy is minimum and kinetic energy is maximum.
3) At t = T/6, the displacement x = cos(3πT/6T)=cos(π/2)=0, the displacement is zero, and hence, both the potential and kinetic energy is zero.
4) At t=T/3, the displacement, x= cos(3πt/T)=cos(3πT/3)= -1. The displacement is minimum and hence, the potential energy is minimum and kinetic energy is maximum.
5) At t=T/2, the displacemetn x = cos(3πt/T) = cos(3πT/2T) = cos (3π/2)=0. Hence, both the potential and kinetic energy is zero.
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5. If you have a mass of 60 kg and a velocity of 100 m/s, how much kinetic
energy do you have? Show all of your work. Remember that kinetic energy
1/2 mass x velocity2, where mass is given in kilograms and speed in
meters per second.
=
Answers
Answer: 300,000 Joules
Explanation:
KE=1/2mv^2
so (1/2)(60kg)(100m/s)^2 = 300,000 Joules