The current flowing through the light bulb is 9.6 Amperes.
According to the Ohm's Law, the potential difference or voltage across a conductor is directly proportional to the current to the current flowing in the conductor, so,
V ∝ I
V is voltage, I is current,
V = IR
Here, the voltage of the battery is 24V.
The resistance of the light bulb is 2.5 Ohms,
Now, putting values,
24 = 2.5I
I = 9.6 A.
So, the current flowing through the light bulb is 9.6A.
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A magnet that is positively charged on one end and negatively charged on the other end is an example of.
A magnet that is positively charged on one end and negatively charged on the other end is an example of D. polarity.
In the field of science, polarity can be described as a phenomenon in which the same substance has different charges in it. The electrical charges are separated inside the same substance or molecule as a result of polarity.
One part of a substance will be negative charges whereas the other will be positively charged as a result of polarity.
A magnet is an example of a substance that can easily gain or lose polarity. When the charges inside a molecule are separate at both ends, we will say that the magnet has gained polarity.
Although a part of your question is missing, you might be referring to this question:
A magnet that is positively charged on one end and negatively charged on the other end is an example of
A cohesion.
B adhesion.
C gravity.
D polarity.
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What type of forces is acting on an object that prevents the object from moving?.
Nuclear power is generated by using Uranium as fuel to produce
nuclear fission. Once the nuclear fission is present, the heat is
combined with the water to make steam. This steam then turns the
Answer:
turbine
Explanation:
Turbine that turns the generator
how much energy would microraptor gui have to expend to fly with a speed of 10 m/sm/s for 1.0 minute?
Much energy as would Microraptor gui have to expend to fly with a speed of 10 m/s for 1.0 minutes is 486 J.
The first step is to find the energy that Microraptor must release to fly at 10 m/s for 1.0 minutes. The energy that Microraptor must expend to fly can be found using the relationship between Power and Energy.
P = E/t
Where:
P = power (W)
T = time (s)
Now, a minimum of 8.1 W is required to fly at 10 m/s. So, the energy expended in 1 minute (60 seconds) is
P = E/t
E = P x t
E = 8.1 x 60
E = 486 Joules
Thus, the energy that Microraptor must expend to fly at 10 m/s for 1.0 minutes is the 486 J.
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How may the stability of a body be increased?
Answer:
The functionality of a body can be restored with the help of appropriate flexibility and strengthening. Once everything is in place, you can exercise those muscles specifically for balance to put them to the test. Your body may then adjust, improving your general stability as you get better at completing those activities.
Answer:
The stability of an object is increased when the lower the centre of gravity is.
So we should try to lower the centre of gravity.
an object at rest on a flat, horizontal surface explodes into two fragments, one seven times as massive as the other. the heavier fragment slides 5.90 mm before stopping. how far does the lighter fragment slide?
The lighter fragment slide to a distance of 289.1m.
The distance between two points is referred to as its length.
7m in mass for the heavier fragment
The lighter fragment's velocity is equal to V1.
The velocity of larger pieces is equal to V2.
mv1 + 7mv2 = 0
V1 = -7V2
The frictional force on lighter fragment: f1 = mg
Friction force on a heavier piece is equal to f2 = 7 mg.
The lighter fragment's deceleration equals a1.
frictional force = ma1 = - f1
ma1 = - µmg
a1 = - µg
Deceleration of the heavier piece equals a2.
7ma2 = -f2
7ma2 = - 7µmg
a2 = - µg
V₃²= V₁² + 2a₁d₁
0 = (-7v₂)² + 2(-µg) d₁
d₁ = 49v₂²/ 2µg
d₁ = 49d₂ = 49 ˣ 5.9 = 289.1m
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a 1.5 kg rock is whirled round in a flat circle at the end of an 85 cm string. it has a linear speed of 1.80 m/s. a) draw a fbd for the thing. b) what is the centripetal acceleration and c) the centripetal force acting on the rock?
Centripetal force is 5.61N
given data:-string length r=85cm
mass =1.5kg
velocity=1.08
Centripetal force= mv2/r= 1.5+1.08*1.08/85
=5.61N
What kind of force is a centripetal force?Centripetal force is the force exerted on an object moving curvilinearly that is pointed in the direction of the object's axis of rotation or center of curvature. Newton is the symbol for centripetal force. Whenever an object moves, the centripetal force is applied perpendicular to that direction.
How is centripetal force generated?Gravity is the centripetal force in Newtonian mechanics that drives astronomical orbits. The scenario in which a body travels at a constant speed along a circular path is a typical illustration of centripetal force.
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According to newton’s first law of motion, an object in motion will stay in at the same speed and direction unless acted upon by what kind of force?.
The vertical impulse by the lift force during this time is 4.15 by minutes for newton's law of motion.
Explanation-
We have a demon That there is a force of 52 down cause of 15. Right? This is what we have you in the questions and acting on the bill. Be both masked by Graham of Mars five g. No. In the meantime. And travelers given that the time and develop acting on this fourth, you should humanists. But we need to find the impulse England's. They seem to not advise you actually. This is what we need to find. So we know that false change in momentum much time. So basically impulses change momentum, but you find impulses changing moment also jay so G is false in campaign so we can put forth here. The forces to do time 59 1 dime. That's Spanish for -5. This was with 15 to 10 days to four minutes, five Newton and two times three seconds Volunteers. They will get 15 into 10 days to the R -4. 15 10 by minus for Newton second law.
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A 20 N force accelerates a 5 kg trolley from 2 m/s to 5 m/s. How long does this change of velocity take?
The correct answer is 0.75 second will take to change velocity.
What connection exists between force and mass of acceleration?
Mass times acceleration, or F=m x a, equals force. This means that in order to move an object at the same speed or velocity as an object with smaller mass, a stronger force is required. Newton's Second Law of Motion is this.
Given, Initial velocity u = 2 m/s
Final velocity v=5 m/s, mass of trolley = 5 Kg. , Force = 20 N
Force = Mass x acceleration
20 N = 5 x a
a = 4 m/ s²
v = u + at
5 = 2 + 4x t
t = 3/ 4 = 0.75 second
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help with this question Below shows a swinging pendulum in three different locations. Label each location with the PE and KE bar graphs that show the relative amount of each.
First position - both Kinetic and potential energy, Second position - only kinetic energy, and Third position - Only potential energy.
The kinetic energy of an item is the power that it possesses because of its movement. Its miles are described as the paintings needed to accelerate a frame of a given mass from relaxation to its said velocity. Having won this energy all through its acceleration, the frame continues this kinetic power except for its speed modifications. the kinetic energy of an item is the energy that it possesses because of its movement.
It is described as the work needed to accelerate a body of a given mass from relaxation to its stated speed. Having received this electricity in the course of its acceleration, the body continues this kinetic electricity unless its speed modifications.
Potential energy is the power held with the aid of an item due to its function relative to other items, stresses inside itself, its electric fee, or different elements.
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What is the de broglie wavelength (in meters) of a 148 g baseball thrown at a velocity of 35. 1 meters per second?.
By converting the 400 nm wavelength of violet light into meters we are get 4.0.10^-7.
What is wavelength?
wavelength can be defined as the distance between two successive crests or throughs of a wave. It is measured in the direction of the wave.
The wavelength of light defined as the distance between the two successive crests or throughs of the light wave.
The wavelength of light is the distance between corresponding point in two adjacent light cycles and the frequency.
Convert the unit for 400nm-
4.0.10^-7
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If you set the air pressure of the tank to 35 psi for a leak test and find that 24 hours later the tank's pressure has increased, what could've happened?
If you set the air pressure of the tank to 35 psi for a leak test and find that 24 hours later the tank's pressure has increased, the thing that could've happened is that there is still a little leak that lets whatever that is inside (such as water) the tank to seep out into the tank's air space.
What is the water pressure about?You may be having issues with your well tank's pressure charge if you've observed that your submersible well pump is turning on and off more frequently or that you're having trouble getting water out of your tank.
Low well tank pressure can harm your well pump, lower the water pressure in your home, and eventually lead to the early failure of your tank. It's crucial to drain the tank and inspect the system's integrity right away if you think your well pressure tank is losing pressure.
Your pressure switch is most likely set to 40/60 if your pump starts up at 40. Turn off the faucet and wait for the well pump to stop before continuing. To find out, check the pressure switch.
Hence, Your pressure switch is most likely set to 40/60 if your pump starts up at 40. Turn off the faucet and wait for the well pump to stop before continuing. To determine the pressure at which this happens, check the pressure switch. This is your tank's second number, often known as the cut-off pressure.
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determine the magnification if a 2.0-cm-high object is situated 11.6 cm in front of a concave mirror that has a radius of curvature of 10.0 cm.
The computed magnification value is 0.11379
Optics Theory-Magnification is the term for the increase in image size brought about by spherical mirrors that are concave or convex in relation to the object size. Magnification is also equal to the ratio of the image's distance from the mirror's pole to the distance of the object as measured from the pole of the mirror.The object's height is always interpreted as positive because it is always above the primary principal axis. But depending on the type of image created in the case of any selected mirror, the sign for the image height may change. The height of the created virtual images should be considered positive, whereas the height of the created real images should be considered negative.Mathematics -u=-11.6cm
f=R/2=10/2=5cm
But as per sign convention f=-5cm
h=2cm
[tex]\frac{1}{v}+\frac{1}{u}=\frac{1}{f}[/tex]
Calculation-1/v=-1/5+1/11.6
=-0.2 +0.08620689
=-0.11379
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an athlete swims the length of a 52.0-m pool in 15.8 s and makes the return trip to the starting position in 21.0 s. determine her average velocity
ˉv=dt where d is the overall displacement, t is the time it takes to complete the displacement, and v is the average velocity of the item. As a result, the average velocity is typically zero when the overall displacement is zero.
The change in position divided by the distance traveled is how average velocity is calculated. For instance, someone traveling at an average speed of 40 miles divided by 40 minutes, or 1 mile per minute, is traveling 20 miles north and then 20 miles south (60 mph). However, average velocity takes into account total displacement rather than just distance.
Average Speed = TT/TD (20/50 = 2.5 m/sec) (b) Average Speed = TT / TD = 22 / 50 = 2.2727 m/sec (c) Average Speed = TT / TD = 20 + 22 / 50 + 50 = 2.38 m/sec
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The magnitude, m, of an earthquake is represented by the equation m=23logee0 where e is the amount of energy released by the earthquake in joules and e0=104.4 is the assigned minimal measure released by an earthquake. which shows a valid step in the process of calculating the magnitude of an earthquake releasing 2.5â‹…1015 joules of energy?
The magnitude of an earthquake releasing 2.5×10¹⁵ joules of energy is
9.95 × 10¹⁰.
By magnitude, what did you mean?In physics, magnitude is simply defined as "distance or quantity." It displays an object's size or motion in either an absolute or relative sense. It is a way of describing the size or scope of something. In physics, magnitude typically refers to a length or a size.
The most common way to gauge the size of an earthquake is by its magnitude. It serves as a gauge of an earthquake's sole source's size. Therefore, it is the same no matter how or where you perceive it, and the following calculation can be described as follows:
Given formula
Magnitude M = 2/3 log E/E₀
The least amount of energy released by such an earthquake must be allocated to, where E is the energy released in Joules and E₀ = [tex]10^{4.4}[/tex]
earthquake releasing 2.5×10¹⁵ joules of energy
M = 2/3 log E/E₀
M = 2/3 log 2.5×10¹⁵/[tex]10^{4.4}[/tex]
M = 9.95 × 10¹⁰.
The magnitude of an earthquake releasing 2.5×10¹⁵ joules of energy is
9.95 × 10¹⁰.
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Arrange the following elements in order of expected increasing electronegativity values: barium (56), beryllium, calcium, magnesium.
The correct order of expected increasing electronegativity values will be
Barium
Calcium
Magnesium
Beryllium
Electronegativity is a chemical property that describe tendency of an atom to attract electrons .
As we know that all the elements mentioned above are from group 2
In group , as we go down , the electronegativity will decrease as size of the atom increases and as the size increases tendency of nucleus to hold electron get decrease . Hence , electronegativity will decrease as we go down the group
the correct order will be
Barium
Calcium
Magnesium
Beryllium
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why is the voltage measured across the voltage source not equal to the sum of the voltages measured across the resistor and across the capacitor?
The voltage measured across the voltage source not equal to the sum of the voltages measured across the resistor and across the capacitor because the voltage across the resistor and capacitor are not in phase.
Current through the resistor = Current through the capacitor
VR / R = VC / XC
3 / 550 = 2.7 / XC
XC = 494.99 Ω
XC = 1 / 2 π f C
XC = Capacitive reactance
f = Frequency
C = Capacitance
C = 1 μ F = 1 * [tex]10^{-6}[/tex] F
f = 2 XC / π C
f = 2 * 494.99 / 3.14 * [tex]10^{-6}[/tex]
f = 315.28 * [tex]10^{6}[/tex] Hz
Therefore,
a ) The frequency of the ac voltage source = 315.28 * [tex]10^{6}[/tex] Hz
b ) The voltage measured across the voltage source not equal to the sum of the voltages measured across the resistor and across the capacitor because the voltage across the resistor and capacitor are not in phase.
The given question is incomplete. The complete question is:
An ac voltage source is connected in series with a 1.0 μ F capacitor and a 550 Ω resistor. Using a digital ac voltmeter, the amplitude of the voltage source is measured to be 4.0 Vrms, while the voltages across the resistor and across the capacitor are found to be 3.0 Vrms and 2.7 V rms, respectively. a ) Determine the frequency of the ac voltage source. b ) Why is the voltage measured across the voltage source not equal to the sum of the voltages measured across the resistor and across the capacitor?
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if a moving clock appears to be ticking half as fast as normal, at what speed is the clock traveling? answer in units of m/s.
The speed with which the clock is traveling is 0.866*3*10^8 m/s.
We know that by Lorentz Time Dilation formula, T= T'/([tex]\sqrt{1-\frac{Velocity^{2}}{c^{2} } }[/tex]) -(i)
We also know that the clock is moving half times as faster.
Using equation number (i) and simplifying it further we get-
[tex]\sqrt{1-\frac{v^{2} }{c^{2} } }[/tex]= 1/2
1 - [tex]v^{2}[/tex]/[tex]c^{2}[/tex] = 0.25
[tex]v^{2}[/tex]/[tex]c^{2}[/tex] = 0.75
v/c = 0.866
v = 0.866 * c
Since we know that c is the speed of light in air and is equivalent to the value = 3*10^8, we get -
v = 0.866 * 3 * 10^8
Hence, the clock moves with a speed, v which is equivalent to 0.866 * 3 * 10^8 m/s.
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A pool cue stick strikes a stationary billiard ball with mass = .25kg and gives the ball a speed of 2.0m/s. Suppose the average force of the cue stick on the ball was 200.0N, over what distance did this force act?
The distance acted by a force of 200 N on a billiard ball of mass 0.25 kg is 0.0025 m.
What is distance?Distance can be defined as the length between points.
To calculate the distance the force act, we need to first find the acceleration of the ball produced by the force.
Using,
a = F/m............. Equation 1Where:
a = Acceleration of the ballF = Forcem = Mass of the ballGiven:
F = 200 Nm = 0.25 kgSubstitute these values into equation 1
a = 200/0.25a = 800 m/s²
Finally, we calculateb the distance, using the formula below.
s = (v²-u²)/2a......... Equation 2Where:
v = Final velocityu = Initial velocitys = DistanceFrom The question,
Given:
v = 2 m/su = 0 m/sa = 800 NSubstitute these values into equation 2
s = (2²-0²)/(2×800)s = 4/1600s = 0.0025 mHence, the distance acted by the force is 0.0025 m.
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the actual depth of a shallow pool 1.00 m deep is not the same as the apparent depth seen when you look straight down at the pool from above. how deep will it appear to be? the index of refraction for water is 1.33.
The objects appear to be closer to the surface than they actually are.
Only when those rays hit our eyes do we perceive an object. In this image, the fish's ray refracts before it reaches the viewer's eye. As a result, the observer sees the fish's apparent depth, Da, at that distance from the surface. Contrarily, fish perceive objects that are farther away than they actually are. Light refraction is the cause of each of these outcomes.Light refracts away from its normal path as a result. According to the incident ray's angle, it doesn't refract at one point and instead travels parallel to the mediums' boundaries. This is the critical angle that we refer to. The incident ray undergoes total reflection rather than refraction if the angle is greater than the critical angle. To find the equation for the critical angle, we now apply Snell's law of refraction.To find more about Snell's law of refraction-
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on the cosmic calendar, which compresses the history of the universe into a single year, about when did life arise on earth?
On the cosmic calendar, life arise on earth about 300,000 years ago
The Cosmic Calendar is a method to visualize the chronology of the universe, The Cosmic Calendar is a scale in which the 13.7 billion year lifetime of the universe is mapped onto a single year. T
Earth formed in early September on the cosmic calendar. about 300,000 years ago in actual time, that anatomically modern humans, Homo sapiens, arose for the first time.
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What information could NOT be provided by a criminal profiler?
OA. the name of the suspect
OB. the gender of the suspect
OC. the possible next moves of the suspect
O D.
the history or childhood trauma of the suspect
Answer: A. The name of the suspect
Explanation: Hope this helps!:)
The name of the suspect could not be provided by a criminal profiler. So, the correct option is A.
What is Criminal profiler?Criminal profiling is also referred to as offender profiling, is a method of investigation used by law enforcement to find potential suspects and by investigators to connect crimes that might have been committed by the same person.
Criminal profilers are highly skilled professionals that focus on locating the individuals responsible for heinous crimes. Along with forensics teams and other law enforcement personnel, profilers work to identify suspects using methods including in-depth psychological understanding and statistical probability.
The FBI defines the criminal profiling procedure as a method for locating the perpetrator of a violent crime by determining the personality and behavioural traits of the offender based on an examination of the crime that was committed.
Thus, the correct option is A.
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A particle starts from rest and is acted on by a net force that does work at a rate that is proportional to the time t. The speed of the particle is proportional to:.
The speed of the particle is proportional to = √t
Work = the change in kinetic energy = 1/2 mv2
If work is proportional to time
W = t
1/2 mv2 = t
v2 = t
v (speed) = √t
Speed is the time rate at which an object is shifting along a path, even as speed is the fee and route of an item's movement. Positioned every other manner, speed is a scalar value, even as pace is a vector.
Velocity (or price, r) is a scalar quantity that measures the gap traveled (d) over the alternate in time (Δt), represented via the equation r = d/Δt.
The Italian physicist Galileo Galilei is credited with being the first to measure speed by considering the gap blanketed and the time it takes. Galileo described pace as the gap covered in line with unit of time.
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. a boat can travel in still water. (a) if the boat points directly across a stream whose current is what is the velocity (magnitude and direction) of the boat relative to the shore? (b) what will be the position of the boat, relative to its point of origin, after 3.00 s?
a) The velocity of the boat relative to the shore is 3.40 m/s and b) The position of the boat relative to its point of origin after 3s is 10.20m.
Here it is given that the speed of the boat (x) = 2.20m/s
The speed of the stream current (y) = 1.20m/s
a) We have to find the velocity of the boat relative to the shore.
The speed of the boat = x + y
= 2.20 + 1.20
= 3.40m/s
b) Now we have to find the position of the boat after 3s
The formula for speed:
Speed = Distance/ Time
distance = speed × time
speed = 3.40m/s
Time = 3s
distance = 3.40 × 3
= 10.20 m
Therefore we get a) speed as 3.40m/s and b) distance as 10.20m.
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At what angle should the roadway on a curve with a 45 m radius be banked to allow cars to negotiate the curve at 12 m/s even if the roadway is icy (and the frictional force is zero)?.
At an angle of 18.26 ° the roadway on a curve with a 45 m radius be banked to allow cars to negotiate the curve at 12 m/s even if the roadway is icy
angle of banking of the car going round the curve = tan (theta) = [tex]v^{2} / rg[/tex]
v = speed
r = radius
g = acceleration due to gravity
substituting the values
tan (theta) = [tex]12^{2}[/tex] / 45 * 9.8 = 0.33
theta = [tex]tan^{-1}[/tex] (0.33)
= 18.26 °
At an angle of 18.26 ° the roadway on a curve with a 45 m radius be banked to allow cars to negotiate the curve at 12 m/s even if the roadway is icy .
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Which phrase is the best example of potential energy? responses a ball rolling down a hill a ball rolling down a hill a ball sitting at the bottom of a hill a ball sitting at the bottom of a hill a ball sitting at the top of a hill.
" a ball sitting at the top of a hill " is the best example of potential energy
Potential energy is exits when an object is in stable equilibrium condition In which an object is in rest and not moving at a certain height .
" a ball rolling down a hill a ball rolling " in this option ball is not at rest , hence posses a kinetic energy
" a ball sitting at the bottom of a hill " , the ball is at bottom
hence , both are incorrect options
and the correct option will be " a ball sitting at the top of a hill "
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a 0.415-kg mass suspended from a spring undergoes simple harmonic oscillations with a period of 1.25 s. how much mass, in kilograms, must be added to the object to change the period to 1.75 s?
Am mass of 0.431 kg should be added to the suspended mass so that the period changes from 1.25s to 1.75s.
The time period of the mass oscillating is given by,
T = 2π√(M/k)
Where,
M is the mass suspended by the spring and K is the spring constant,
The mass suspended is 0.145 kg and the time period is 1.25 seconds.
So, putting values,
1.25 = 2π√(0.415/K) ......Equation 2,
Let us say, that we have to add a mass M to the object so that the period changes to 1.75 seconds.
So, we can write,
1.75 = 2π√(0.415+M/K) ......Equation 1
Dividing the equations 1 and 2, we get,
M = 0.431 kg.
So, a mass of 0.431 kg should be added to change the time period.
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The small, but important, energy differences between 3s, 3p, and 3d orbitals are due mainly to.
Its Heisenberg uncertainty principle is mostly to blame for a little but significant discrepancy between these three s three P & three D printers.
By what method did Einstein refute the Heisenberg uncertainty principle?The momentum on Bob's particle can then be properly stated without relying on Alice's measurement, according to Einstein, assuming no supernatural activity. Now we have Bob's particle, which defies quantum Heisenberg Uncertainty Principle by possessing accurate values for both position and momentum at the same time.
How significant is the Heisenberg principle?According to their beliefs, everything might be accurately known with the aid of mathematics and the appropriate tools. Heisenberg, however, proved that every measurement has a certain amount of randomness and uncertainty and that this is a natural aspect of how the universe functions.
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Karl measures the current through a resistor. What else will he need to measure in order to work out its resistance? give the full name, not the symbol.
Answer:
Explanation:
The voltage across the resistor
then ohms = voltage / current
although fusion is preferred, why are all commercial nuclear power plants using energy from fission?
All commercial nuclear power plants are using energy from fission because the nuclear fission reactions are controllable.
In the nuclear power plants energy is obtained by nuclear fission rather than nuclear fusion because in Nuclear Fission reactions are controllable reactions. We can increase or decrease the amount of the particles undergoing season in a nuclear reaction.
On the other hand nuclear fusion reactions are uncontrollable in nature. Basically they are the reactions of two hydrogen molecules fusing with each other in order to form a Helium nucleus this results in enormous amount of energy but we cannot keep a cap on the nuclear fuel undergoing fusion.
This is why all the commercial nuclear power plants are using energy from fission.
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