The Sun emit neutrinos because of the fusion in the Sun's core creates neutrinos.
Most of the neutrinos that are currently flowing through you came from the sun. Every second, a hundred billion solar neutrinos travel through our fingernail.
Nuclear fusion occurs in the sun, where it results in the creation of neutrinos. Protons, the nucleus of the most basic element, hydrogen, combine during fusion to create helium, a heavier element.
As a result, neutrinos and energy are released, which will eventually manifest on Earth as light and heat.
These solar neutrinos represent an overall energy emission from the Sun of about 1%. Every second, the Sun emits 1038 neutrinos, each carrying 4 1024 W of electricity.
The sun's core can also be directly understood through the use of solar neutrinos. Unexpectedly, neutrinos generated in the sun's core reach to
Earth before light from the sun (formed in the same reaction), something we would not expect. This isn't because neutrinos can move more quickly than light since they can't.
Neutrinos encounter with matter so infrequently that they are able to immediately depart the sun's dense core, whereas photons (the light particles) bounce around before breaking free.
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two 1.50 v batteries -- with their positive terminals in the same direction -- are inserted in series into the barrel of a flashlight. one battery has an internal resistance of 0.350 , the other an internal resistance of 0.110 . when the switch is closed, a current of 600 ma occurs in the lamp. (b) what fraction of the chemical energy transformed appears as internal energy in the batteries?
In the series of a flashlight's barrel, the fraction of the chemical energy transformed appears as internal energy in the batteries as 0.460.
b) the expression for the total emf for the given circuit is
E = nV
E = total emf for the circuit
n = number of batteries
V = voltage across the batteries
Substitute 2 for n, 1.50V for V in the above equation to find E
E = 2 x 1.500V
= 3.0V
Total emf = 3.0V
By using the formula to calculate total internal resistance for the circuit
r = r1+r2
r = total circuit's resistance
r1 = one battery's internal resistance
r2 = internal resistance of other battery
Substitute 0.350 for r1 and 0.110 for r2 in the above formula then,
r = 0.350+0.110
= 0.460
Hence, the total internal resistance for the circuit is 0.408
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true or false: the quantities di and do are measured from the lens (or mirror).
The quantities di and do are measured from the lens (or mirror): False.
True statement: The quantities of di and do are not measured from the lens (or mirror).
What is lens?A lens is a piece of transparent material that is typically round in form with two polished surfaces that are either convex (bulging) or concave on one or both sides (depressed). In other words, the radius of curvature is constant since the curves are virtually always spherical.
Lenses are a common component of telescopes, binoculars, and cameras, among other image equipment. Additionally, they are utilized as visual aids in spectacles to treat vision problems including myopia and hypermetropia.
The statement is false.
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which electromagnetic radiation wavelength is efficiently observed using ground based telescopes? a. radio b. infrared c. visible d. X-rays.
Radio is the electromagnetic radiation wavelength is efficiently observed using ground based telescopes. Option A.
What is meant by electromagnetic radiation?In terms of physics, electromagnetic radiation is made up of electromagnetic field waves that travel over space while carrying radiant electromagnetic energy. It consists of X-rays, gamma rays, microwaves, infrared, light, and radio waves. These waves are all a component of the electromagnetic spectrum.
The energy levels of electromagnetic radiation can range from low to high. It consists of x-rays, gamma rays, infrared light, visible light, ultraviolet light, radio waves, and microwaves.
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A bow wave is produced when a speed boat moves fast as the waves it produces_ faster than the waves it produces. nearly as fast as the waves it produces none of the above
A Bow wave is produced when a speed boat moves faster than the waves it produces.
A Bow wave is a progressive disturbance that propagates through a fluid, such as water or air, as a result of a displacement of the anterior point of an object passing through the fluid that is greater than the speed of the wave travelling across the fluid, produced by the same object. If the speed of the object is slower than the waves it produces, then no Bow waves will be generated. In the above scenario, when the speed boat moves faster than the waves it generates, it produces the Bow wave in the water.
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which tools do astronomers use to determine the effects of collisions between galaxies? select the two correct answers.(1 point)
Astronomers use space telescopes to determine the effects of collisions between galaxies.
A space telescope could be a telescope in outer space utilized to watch astronomical objects. Space telescopes avoid the sifting and distortion of electromagnetic radiation which they observe, and maintain a strategic distance from light pollution which ground-based observatories experience. They are divided into two sorts, such as Satellites which outline the entire sky, and satellites which center on selected galactic objects or parts of the sky and beyond. Astronomy deals with the study of external space. The study centers on planets and other celestial bodies. For the most part, telescopes are utilized to study external space.
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which tools do? select the two correct answers. (1 point)
computer simulations
print encyclopedia entries
space telescopes
solar system models
a 100 mh inductor whose windings have a resistance of 4.0 ω is connected across a 15 v battery having an internal resistance of 2.0 ω
The amount of Energy stored in the inductor is calculated as; 0.3125 J
What is the energy stored in the inductor?
We are given;
Inductance; L = 100 mH
Resistance; R = 4.0 Ω
Voltage; V = 15 V
Internal resistance; r = 2.0 Ω
Formula for current with internal resistance is;
I = V/(r + R)
I = 15/(2 +4)
I = 2.5 A
Formula for energy stored in inductor is;
U = ¹/₂LI²
U = ¹/₂ * 100 * 10⁻³ * 2.5²
U = 0.3125J
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how much work is required for a 78 kgkg runner to accelerate from rest to a speed of 8.0 m/sm/s ?
Work done to accelerate from rest to speed of 8 m/s = 2496 Joules
What is Work energy theorem ?According to the work-energy theorem, the net work performed by forces acting on an item equals the change in kinetic energy.
According to the given information
Using the work - energy theorem,
work done is defined as the change in the kinetic energy [tex]$\mathrm{W}=\frac{1}{2} \mathrm{mv}^2-\frac{1}{2} \mathrm{mu}^2[/tex]= [tex]\frac{1}{2} \mathrm{~m}\left(\mathrm{v}^2-\mathrm{u}^2\right)$[/tex]
given
[tex]$\mathrm{m}[/tex] =78 [tex]\mathrm{~kg}$[/tex]
[tex]$u=0 \mathrm{~m} / \mathrm{s}$[/tex]
[tex]$v=8 \mathrm{~m} / \mathrm{s}[/tex]
Hence
[tex]$\mathrm{W}=\frac{1}{2} 78\left(8^2-0^2\right)$[/tex]
[tex]$\Rightarrow \mathrm{W}=\frac{1}{2}(78)(64)$[/tex]
[tex]$\Rightarrow \mathrm{W}=2496 \mathrm{~J}$[/tex]
Work done to accelerate from rest to speed of 8 m/s = 2496 Joules
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what is the force on a 1000 kg elevator that is falling freely at 9.8 m/sec/sec?
Answer:
9.8 m/ssr=2322
Explanation:
a bottle of juice is 2/3 full. the bottle contains 4/5 of a cup of juice. find the capacity of the bottle
The capacity of the bottle is 1.2 cups of juice.
What is the capacity of the bottle?
The capacity of the bottle is the sum of all the volume of juice contained in the bottle and it is calculated as follows;
Total capacity of the bottle = initial volume of the bottle ÷ volume of the cup of juice
2/3 full ------------------> 4/5 cups
100% full = 1 -------------> x
( ²/₃ ) x = ⁴/₅
The total capacity of the bottle is calculated as follows;
Total capacity of the bottle ⇒ ( ²/₃ ) x = ⁴/₅
5 (2x) = 4 (3)
10x = 12
x = 12 / 10
x = 1.2 cups
Thus, the capacity of the bottle is a function of the amount of cups of juice that can fill it.
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when air expands adiabatically (without gaining or losing heat), its pressure and volume are related by the equation , where is a constant. suppose that at a certain instant the volume is and the pressure is kpa and is decreasing at a rate of kpa/min. at what rate is the volume increasing at this instant?
The rate at which the volume is increasing is dV/dt equals 21.2 cm3/min.
What is adiabatic expansion?Adiabatic expansion is defined as expansion in which there is no heat exchange between the system and its environment and the system uses its own energy to perform work.
An ideal gas is enclosed in an insulated container and allowed to expand in a vacuum for adiabatic free expansion. The work done by or on the system is 0 because the gas cannot expand because there is no external pressure for it to do so.
This should, I assume, state that PV 1.4 = C.
By applying the chain rule and the product rule to the derivative with regard to time, we arrive at:
[tex]PV^1^.^4[/tex] = C
[tex]\frac{d}{dt} (PV^1^.^4)[/tex] = d/dt( C)
On further solving the derivative we get,
(-7)(4201.4) + (99)(1.4)(4200.4)dV/dt = 0
-32934 + 1552.6dV/dt = 0
dV/dt = 32934/1552.6
dV/dt equals 21.2 cm3/min.
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in 1923, the united states army (there was no united states air force at that time) set a record for in-flight refueling of airplanes. using two refueling planes, an airco dh-4b biplane was able to remain in flight for 38 h . during the flight, the refueling planes were able to air-transfer a total of 687 gallons of fuel to the plane in 9 refueling transfers. assume that the refueling nozzle had a diameter of 1.35 in and each refueling took 2.51 min to perform. calculate the velocity of the fuel through the nozzle. assume that the fuel filled the entire cross-sectional area of the nozzle.
The velocity of the fuel through the nozzle. assume that the fuel filled the entire cross-sectional area of the nozzle. 6.45ft/sq
Velocity is a vector expression of the displacement that an item or particle undergoes with appreciate to time . the usual unit of pace importance (additionally referred to as speed ) is the meter according to 2nd (m/s).
calculation:-
Volume of the fuel pump is V = Avt
V = 687 gallons = 2.6 m³
t = (2.31) 60 × 9
= 1247.4 sec
A = πr²
= 3.141 × (0.0368/2)²
= 0.00106 m³
V = Avt
2.6 m³ = 0.00106 m³ v × 1247.4
V = 1.966 m/s
V = 6.45 ft/sec
Nozzles are used within the rocket and plane engineering to provide jet propulsion, in intensive shattering and spraying technology, in jet gadgets and ejectors and in fuel dynamic lasers and gasoline mills (see gasoline turbine).
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A film with thickness t gives constructive interference for light with a wavelength in the film of λfilm. How much thicker would the film need to be in order to give destructive interference?
A. 2λfilm
B. λfilm
C. λfilm/2
D. λfilm/4
Light with a wavelength in the film's thickness t exhibits constructive interference.
What exactly is a damaging interference?
When two waves are entirely out of phase (a peak is located in the middle of two waves), destructive interference ensues. In other words, destructive interference occurs when two waves 180 degrees or radians apart from each other cancel each other out.
What causes waves to interfere destructively?
When two waves' maxima are 180 degrees out of phase, destructive interference happens: a positive displacement of one wave is precisely cancelled by a negative displacement of the other wave. The resultant wave has zero amplitude.
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a thin wire 7.0m long has a charge of 1 nC. Find the electric field strength 2.0 mm from the edge of the wire along the axis of the wire.
Answer:
1400
Explanation:
because when the 70m long x20m lone will give u 1400 then u time it with 1 that will give u 1400
Matter can undergo chemical reactions and nuclear reactions. Which
statement is true for both types of reactions?
O A. Atoms are rearranged.
B. New types of compounds are formed.
C. The products are different from the reactants.
OD. New types of atoms are formed.
SU
The statement that is true if matter undergoes both chemical and nuclear reaction is that atoms are rearranged (option A).
What is a chemical reaction?A chemical reaction is a process, typically involving the breaking or making of interatomic bonds, in which one or more atoms or substances are changed into others.
Also, a nuclear reaction is a process such as the fission of an atomic nucleus, or the fusion of one or more atomic nuclei and/or subatomic particles in which the number of protons and/or neutrons in a nucleus changes.
In a nuclear reaction, the products may contain a different element or a different isotope of the same element.
This suggests that are atoms are rearranged in both chemical and nuclear reactions.
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you attach a block to the bottom end of a spring hanging vertically. you slowly let the block move down and find that it hangs at rest with the spring stretched by 13.0 cm. next, you lift the block back up and release it from rest with the spring unstretched. what maximum distance does it move down? 6.5 cm 13.0 cm 26.0 cm 52.0 cm the distance cannot be determined without knowing the mass and spring constan
Maximum distance that it moves down is 26 cm, when block hangs at rest with the spring stretched by 13.0 cm.
How to calculate the change in spring length?In the formula, F = -k x : k is called the spring constant and is a measure of the spring's stiffness. When a spring is stretched or compressed, its length changes by an amount x from equilibrium length, and then it exerts a force F = -kx in a direction towards the equilibrium position.
Given that the equilibrium position is 13 cm below the starting point. As motion is symmetric about the equilibrium position, so the two turning points are 26 cm apart.
13 *2 = 26cm
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why are electrical insulators important? they help the flow of electricity they provide power for electric circuits they are used to protect us from electricity they help conduct heat they are not important
Electrical insulators are important because they are used to protect us from electricity.
Why are we use Electrical insulator?As they don't carry electricity, insulators are used in circuits to insulate wire, switches, plugs, and other electrical components. So that circuit may be made safe to touch and shock-free.An insulator prevents electricity from moving. Insulators are crucial for protecting humans from electricity. A rubber-like insulator covers the wire carrying electricity to your computer or television to prevent you from being electrocuted. Glass, the air, and paper are all effective insulators.Electrical equipment uses insulators to hold and separate electrical conductors without allowing current to flow through them. Insulation is an insulating substance that is wrapped in large quantities over electrical lines or other equipment.Learn more about Electrical insulator refer to :
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Find the electrical energy consumed by an electric geyser of power rating 2000 watt when it is used for 1 h
The electrical energy consumed is 2KWh
How do we calculate electrical energy consumption?Electrical energy or electricity consumption represents the amount of electrical energy that has been consumed over a specific time, in units of Wh (or kWh), electricity demand represents that rate at which electrical energy is consumed for a needed output rating, in units of W (or kW).
Energy is given as :
Energy = power ×time
power = 2000w = 2kw
time = 1hr
therefore electrical energy consumed over 1hr
= 2kw× 1hr
= 2kwhr
therefore the electrical energy consumed is 2KWh
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You are riding in the car with your grandfather, and he turns left. Why do you shift to the right?
Answer: Because physics makes us go to the right
Explanation:
what is the angular velocity of this microwave in radians per second?
Angular velocity of the microwave in radians per second = 0.6492 rad/s
What is angular velocity ?The rate at which something rotates or revolves around an axis is known as its angular velocity. The Greek letter omega (ω) stands for angular velocity. Because it is expressed as an angle per unit of time, angular velocity in the SI is measured in radians per second.
According to the given information
We need to find the Angular velocity of the microwave in radians per second
For that ,Firstly we will find the frequency
Microwave rotate at the rate of = 6.2 rev/min
= 6.2/60 rev/s
= 0.10333 rev/s
Now , we know that
Angular velocity = 2[tex]\pi[/tex]f
ω = 2×3.14×0.10333
ω = 0.6492 rad/s
Angular velocity of the microwave in radians per second = 0.6492 rad/s
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a student holds a laser that emits light of wavelength 633.0 nm. the laser beam passes though a pair of slits separated by 0.200 mm, in a glass plate attached to the front of the laser. the beam then falls perpendicularly on a screen, creating an interference pattern on it. the student begins to walk directly toward the screen at 3.00 m/s. the central maximum on the screen is stationary. find the speed of the 50th-order maxima on the screen.
Speed of the 50th-order maxima on the screen = 0.480 m/s
Given in the question,
Wavelength = 633.0 nm
Dimension of slits = 0.200 mm
Speed of students walking toward the screen = 3.00 m/s
The angle of 50th order fringe =
⇒ d sinθ = mλ
⇒ θ = [tex]sin^{-1}[/tex]( 50λ / d)
The distance x from the slit to the screen and the distance y of the 50th-order fringe from the central maximum is related by tan θ,
tan θ = [tex]\frac{y}{x}[/tex]
As the student comes closer to the screen at speed v, the distances between x and y decrease but their ratio stays the same.
tan θ =[tex]\frac{y}{x}[/tex]
y = x tan θ
[tex]\frac{dy}{dt}[/tex] = [tex]\frac{dx}{dt}[/tex]tan θ
Since [tex]\frac{dx}{dt}[/tex] represents a change in speed so we could assume,
[tex]\frac{dx}{dt}[/tex] = v
[tex]\frac{dy}{dt}[/tex] = -v tan θ
As we can see in the question that the distance is decreasing so the change in distance will also decrease hence = [tex]\frac{dy}{dt}[/tex] will be negative.
[tex]v_{50th-order}[/tex] = |[tex]\frac{dy}{dt}[/tex]| = vtanθ
= vtan[ [tex]sin^{-1}[/tex] (mλ / d) ]
By using this formula we will find the speed of the 50th-order fringe,
[tex]v_{50th-order}[/tex] = (3.00m/s)tan { [tex]sin^{-1}[/tex] [ [tex]\frac{50(633.0 * 10^{-9}m) }{0.200 * 10^{-3} }[/tex] ] }
[tex]v_{50th-order}[/tex] = (3.00 m/s) tan (9.1053)
[tex]v_{50th-order}[/tex] = 3.00 x 0.160
[tex]v_{50th-order}[/tex] = 0.480 m/s
Therefore, speed of the 50th-order maxima on the screen = 0.480 m/s
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a 2.0-kg mass is attached to the end of a horizontal spring of spring constant 50 n/m and set into simple harmonic motion with an amplitude of 0.10 m. what is the total mechanical energy of this system?
Answer:
0.25 J
Explanation:
on planet x, an object weighs 19.8 n. on planet b where the magnitude of the free-fall acceleration is 2.46 g (where g = 9.8 m/s2 is the gravitational acceleration on earth), the object weighs 39.6 n. a) what is the mass of the object on planet x? answer in units of kg
Weight of the object on planet X is 19.8 N, then the mass of the object on planet x is calculated to be 2.02 kg.
What is gravitational acceleration?In physics, gravitational acceleration is the acceleration of an object in ab free fall within a vacuum, without experiencing drag.
When objects fall on the ground, gravity causes them to accelerate. Acceleration is the change in velocity, and velocity is a measure of the speed and direction of motion. Gravity causes an object to fall to the ground much fast and faster is velocity, longer the object takes to fall.
On planet X;
Given, W= 19.8 N ; a= 9.8 m/s^2
W = m a
m= W/a= 19.8/9.8
Mass of the object on planet x = 2.02 kg
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what is the right expression for the rotational kinetic energy of an object that is only rotating about a fixed axis through its center of mass? (i.e., the object is not translating)
The rotational kinetic energy of an object that is only rotating about a fixed axis through its center of mass is given by E_rot = 1/2 Iω^2, where I is the moment of inertia and ω is the angular velocity.
The rotational kinetic energy of an object is the energy associated with its rotation about an axis. It is equal to one-half the product of the object's moment of inertia and its angular velocity squared.
It is a form of kinetic energy and is usually represented by the symbol Krot. The rotational kinetic energy of an object depends on its moment of inertia and the angular velocity of its rotation. The equation for rotational kinetic energy is Krot= 1/2 Iω2, where I is the moment of inertia and ω is the angular velocity.
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a boxer rides with a punch so as to reduce__
which one?
force; speed; impulse; or momentum
A boxer rides with a punch so as to reduce force.
Force is an external influence that can change the velocity or motion of an object.
It can also be defined as the product of mass and acceleration.Mathematically, force F = m*aForce is also the amount of impact the object suffers due to another body's action.
Speed is the rate of change of distance w.r.t time, which cannot affects the boxer in any format
Impulse is force times the time interval which does not defines the impact.
Momentum is the product of mass and velocity which does not satisfies the boxer's condition while punching.
Therefore only force is the suitable answer, i.e. a boxer rides with a punch so as to reduce force.
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find the transfer function g(s)=vo(s)/vi(s)
Transfer function g(s)=vo(s)/vi(s) is G(s) = s/2s +1
In frequency domain Inductor L transforms to sL and Capacitor C transforms to 1/sC using this ,the output voltage in frequency i.e s domain using voltage division rule is
Vo (s) = Vi(s) * sL ║1 / 1 + sL║1 = Vi (s) * s║1 / 1+ s║1
assume L = 1H
Vo (s) = Vi (s) * s*1/s+1 / 1+ s*1/s+1
G(s) = Vo (s) /Vi (s) = s / s + 1+ s = s/2s + 1
G(s) = s/2s + 1
A mathematical function known as a system function or network function of a system, sub-system, or component theoretically simulates the output of the system for each potential input. Electronics and control systems use them extensively. This function, which is sometimes called a transfer curve or characteristic curve, is a two-dimensional graph of an independent scalar input vs a dependent scalar output. In electronics and control theory, transfer functions for components are used to build and analyze systems that are constructed from components, particularly when utilizing the block diagram technique.
The transfer function's parameters and units simulate the output response of the device for a variety of potential inputs.
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in 1634, in an attempt to determine the source of a growing plant's mass, van helmont planted a willow seedling in a pot of soil. after 5 years, the willow weighed 76.8 kg, and the soil had lost 0.06 kg of weight. only water had been added to the pot. which conclusion should van helmont have drawn?
The conclusion should van helmont have drawn Plants get all or almost all of their mass from a source other than soil
Van Helmont conducted an experiment to see whether the ancient Greek theory was accurate. In a measured amount of dirt, he raised a willow tree. The willow tree had gained roughly 74 kg in weight over the course of five years, he found. Van Helmont came to the conclusion that soil minerals alone cannot account for plant development because the weight of the soil had hardly changed. He believed that the additional plant matter had only come from the water.
Complete question:
In an attempt to find out where a growing plant gets its mass, Van Helmont planted a willow seedling in a pot of soil. After five years, the willow weighed 76.8 kg, and the soil had lost 0.06 kg of weight. Only water had been added to the pot. Which of the following conclusions should Van Helmont have drawn?
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base your answers to the fololwing questions on the informetaion and disgram below. a golf ball leavea a golf club with n nitial velocity of 40.0 mtersp er second at an angle of 40 degrees. with the horrziontal what is the vertical component of the g9lf balls initial velocity
The ball's parabolic motion causes it to move at a speed of 26.3 m/s right before it strikes the ground, which is faster than its straight-downfall velocity of 17.1 m/s.
How do you determine a golf ball's flight?
The vertical velocity of the ball traveling up the club head face is calculated using the equation 5/7 f v sin 0 where f is the fraction of speed left after the ball is compressed, 0 is the angle of the clubface at impact, and v is the velocity of the club head.
How will the ball's speed change as it descends to the ground?
The ball descends faster and faster. In other words, the ball is moving faster the entire time it is in the air, both during its ascent and at the moment it reaches its peak, as well as throughout its descent. Gravity is what causes the ball to accelerate.
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A 0.5âkg block B slides without friction inside a slot cut in arm OA that rotates in a vertical plane. The rod has a constant angular acceleration Ëθ=10rad/s2. Knowing that when θ=45â and r=0.8m the velocity of the block is zero, determine at this instant, (a) the force exerted on the block by the arm, (b) the relative acceleration of the block with respect to the arm.
a) Force exerted on the block by the arm is 4N.
b) The relative acceleration of the block with respect to the arm is 10rad/s2.
(a) The force exerted on the block B by the arm OA is given by:
F = m × a = 0.5 kg × (10 rad/s2) × 0.8 m = 4 N
The force exerted on the block by the arm is equal to the product of the mass of the block and the relative acceleration of the block with respect to the arm. Since the velocity of the block is zero at the given instant, the relative acceleration of the block with respect to the arm is equal to the angular acceleration of the arm, i.e., 10rad/s2. Hence, the force exerted on the block by the arm is
0.5kg×10rad/s2 =5N.
(b) The relative acceleration of the block with respect to the arm is given by:
a_rel = a + θ2 × r = 10 rad/s2 + (45 rad/s2)2 × 0.8 m = 15.6 m/s2
The relative acceleration of the block with respect to the arm is equal to the angular acceleration of the arm, i.e., 10rad/s2.
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Pls I need help, Select all of the essential conditioning skills for a skier. (Check all that apply)
flexibility
strength
walking
balance
Answer:
Explanation:
I think its all of the above
have a good day :)
When a nucleus of ^235 U undergoes fission, it breaks into two smaller, more tightly bound fragments.
Â
1) Calculate the binding energy per nucleon for ^235U? (Express with appropriate units)Â
2) Calculate the binding energy per nucleon for the fission product ^137 Cs? (Express in appropriate units)
The binding energy per nucleon of 235-U and 137-Cs is given below:
235-U = 7.6 MeV137-Cs = 8.39 MeVWhat is the binding energy per nucleon of 235-U and 137-Cs?The binding energy of a nucleus is given by the following equation:
BE = Δmc²where;
BE is binding energy
Δm is mass defect
c is the speed of light = 931.49 MeV/u
For 235U:
A = 235
Δm = 1.9150664
BE = 1.9150664 * 931.49 MeV/u
BE = 1783.8648 MeV
The binding energy per nucleon is given by the formula; BE/A
BE/A = 1738.648 MeV / 235
BE/A = 7.6 MeV
For 137-Cs, binding energy will be:
Δm is mass defect = 1.23383 u
BE = 1.23383 u * 31.49 MeV/u = 1149.3003 MeV
And, the binding energy per nucleon, BE/A will be:
And, since in the case of 137-Cs, A is 137;
BE/A = 1149.3003 MeV / 137
BE/A = 8.39 MeV
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