The correct answer is convection.
Convection is the physical movement of material particles that transfers heat from a location of greater temperature to a region of lower temperature.
Convection is a heat-transfer process in which heat energy is transferred by the mass movement of fluid molecules, such as those found in gases and liquids. Under normal circumstances, gases and liquids are poor heat conductors, yet they are nonetheless capable of transferring heat.
Other than through diffusion, advection, or both, convection is the method used to transfer heat. Solids don't experience convection because the particles that make them up don't move.
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when an object is thrown upwards, when it reaches its maximum height, its instantaneous velocity is and its acceleration is
At maximum height, the velocity is 0 and the acceleration is equal to acceleration due to gravity in the downward direction.
We have an object thrown upwards.
We have to determine its velocity and acceleration at maximum height.
At maximum height, the direction of velocity vector is ?A maximum height the direction of velocity vector does not exist as it is a null vector at that point.
According to the question -
When the object reaches its maximum height, it will no longer continue to move in the upward direction. For a instant of time in which the ball achieves maximum height - the velocity of the ball becomes 0.
Now, the acceleration due to gravity acts on the ball in the downward direction and is equal to 9.8 m/[tex]s^{2}[/tex]
Hence, at maximum height, the velocity is 0 and the acceleration is equal to acceleration due to gravity in the downward direction.
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an ammeter is calibrated so that it shows a full scale deflection when it measures a current of 2.0a
The shunt resistance utilized will be 9:1 in relation to the ammeter's resistance.
A certain amount of current must flow through a moving coil meter in order for FS to be deflected. Understanding this quantity makes it easier to calculate the resistance needed to convert to a voltmeter. Consequently, the more sensitive the meter is, the less the voltage measurement method affects the actual voltage (lower current required to induce a full-scale deflection of the meter).
The full-scale deflection of an ammeter is produced with a current of 1 amp (r1 = 1V = V; r2 = 10V = 0.1V).
The ammeter's resistance to the shunt resistance was compared, with the resulting ratio being r2r1 = 0.1V V0.1V = 0.1*0.9V = 9:1.
The complete question is-An ammeter gives full scale deflection with a current of 1 amp. It is converted into an ammeter of range 10 amp. The ratio of the resistance of ammeter to the shunt resistance used will be
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Why does reduction in soil moisture content pose an impending disaster for many areas in the world?
The study, which was published in Nature, demonstrates that soil moisture levels, which are influenced by temperature increases and extreme weather conditions like droughts, can have a "significant negative influence" on a region's capacity to store carbon.
It concludes that the "CO2 fertilizations effect," a process wherein rising CO2 levels in the atmosphere boost the growth and, consequently, carbon uptake of plants, would likely cause an increase in the pace at which land absorbs carbon until the second part of this century.
The lead author told Carbon Brief that after this, the fertilizations is anticipated to "hit a pinnacle". This peak, when paired with the detrimental effects of soil moisture changes, could significantly shift the land's role as a carbon sink to source greatly accelerating climate change.
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How many kilojoules of heat must be supplied to 4.1 g of ice at -26 oc to convert it to steam at 147 oc?
The amount of heat supplied to 4.1 g of ice at -26°C to convert it to steam at 147°C will be 12.81 kJ.
What is the heat supplied?The heat supplied is by the summation of the sensible heat and the latent heat of the substance.
Heat = Sensible heat + Latent heat
The mass of the substance is 4.1 grams (4.1 × 10⁻³ kilograms).
The sensible heat is given as
Q = mCΔT
Where C is the specific heat at constant volume (4.18 kJ / kg-K up to 100°C and 0.718 kJ / kg-K after 100°C), m is the mass and ΔT is the temperature difference.
The latent heat is given as
Q = mL, where L is the specific latent heat of a substance (334 kJ / kg at 0°C and 2230 kJ / kg at 100°C).
Heat = 4.1 × 10⁻³ × [4.18(0 + 26) + 334 + 4.18(100 - 0) + 2230 + 0.718(147 - 100)]
Heat = 4.1 × 10⁻³ × [108.68 + 334 + 418 + 2230 + 33.746]
Heat = 4.1 × 10⁻³ × 3124.426
Heat = 12.810 kJ
The amount of heat supplied to 4.1 g of ice at -26°C to convert it to steam at 147°C will be 12.81 kJ.
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What depth of oil, specific gravity of 0.750, will produce a pressure of 26 psig?
The depth of oil, specific gravity of 0.750, will produce a pressure of 26 psig is =92.3 ft
PSIG refers to pounds per square inch Gauge (S.G.) oil = 0.750
P(ress )=30 psig = 30lb/in²
density of water ρ(w)= 62.4 pound/ft³
=62.4/(12)³ lb/in³
=0.03611 lb/in³
p(ress)=ρ H
30=(s.g) xρ H
30 = 0.750X 62.4/(12)³ H
H = 30x (12)3/0.750 x 62.4
H = 1107.69 in.
=92.3 ft
Relative gravity is another name for specific gravity. Since it lacks any dimensions, it must be a dimensionless quantity. The ratio of a substance's density to that of water at a specific temperature can be used to characterize it. It is significant to remember that temperature is a key factor in influencing any substance's specific gravity. As a result, a substance's specific gravity is a quality that depends on its temperature. Additionally, every substance's specific gravity is impacted by pressure.
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A 2so-ml bottle of a sports drink solution contains 4.soy mass of sodium chloride. what is the molal concentration of sodium chloride in this bottle of sports drink?
A 2SO-mL bottle of a sports drink solution contains 4.SO% mass of sodium chloride.
The molal concentration of sodium chloride in this bottle of sports drink is 0.806 m
What do you understand by molal concentration?
Molal concentration is also known as molality.
It is defined as the total moles of solute dissolved in per kg of the solvent.
It is used to determine the concentration of the solute when it is dissolved in solvent. The unit of molality is mol/ kg.
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Help with this pls will make brainlest
Answer:
bro just copy and paste the questions for us
Explanation:
Music thudded out of the shop and mingled with some of the other noises of the city.
Add more details after the sentence.
Based on the first paragraph that acts as an opener, a sample narration is given below:
Music thudded out of the shop and mingled with some of the other noises of the city.
It was the festival of the goat in the city of Raek and this was a huge celebration as several people gathered in a cacophony of noises which were a mix of traditional music, and then chants and songs from the locals.
Indeed, this was a beautiful ceremony and although I was a tourist, I thoroughly enjoyed myself and even participated in the killing of the goat which was the reason for the festival and celebration.
What is a Narration?This refers to the storytelling that is done with the aid of a narrator in order to advance a plot.
Hence, we can see that Based on the first paragraph that acts as an opener, a sample narration is given below:
Music thudded out of the shop and mingled with some of the other noises of the city.
It was the festival of the goat in the city of Raek and this was a huge celebration as several people gathered in a cacophony of noises which were a mix of traditional music, and then chants and songs from the locals.
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true or false: it is possible for an object to nnove for 10 seconds at a high speed and end up with an average velocity of zero.
Yes. it is possible for an object to move for 10 seconds at a high speed and end up with an average velocity of zero.
What is average velocity?Velocity is answer to the question: How fast are you changing your position? It's basically asking for a comparison of where you are at two different times and makes rate of change quantitative. To make sense out of this, let's first write it as words equation:
The average velocity = (How far did you move?) / (How long did it take you?)
That way, doing either a bigger distance in the same time or the same distance in a shorter time both give a larger number to velocity and agree with our sense of what it means to move faster.
For the above question:
Average velocity is displacement over the time. Displacement is difference between your final position and your initial position. If you traveled in circular path, very fast, or very slow, and ended up back where you started, your displacement would be zero. Dividing your displacement of zero, by time your trip took, will give you an average velocity of zero.
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Be sure to answer all parts. chlorine has two naturally occurring isotopes, 35cl and 37cl. what is the mass number of each? how many protons, neutrons, and electrons are present in each?
Chlorine has two naturally occurring isotopes, [tex]^{35}Cl[/tex] and [tex]^{37}Cl[/tex].
What is the mass number, number of protons, neutrons, and electrons are present in [tex]^{35}Cl[/tex]?
The mass number of [tex]^{35}Cl[/tex] is 35.
The number of protons present in [tex]^{35}Cl[/tex] is 17.
The number of neutrons present in [tex]^{35}Cl[/tex] is 18.
The number of electrons present in [tex]^{35}Cl[/tex] is 17.
What is the mass number, number of protons, neutrons, and electrons are present in [tex]^{37}Cl[/tex]?
The mass number of [tex]^{37}Cl[/tex] is 37.
The number of protons present in [tex]^{37}Cl[/tex] is 17.
The number of neutrons present in [tex]^{37}Cl[/tex] is 20.
The number of electrons present in [tex]^{37}Cl[/tex] is 17.
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An electron confined to a one-dimensional box of length 0.3 nm jumps from the n = 3 quantum state to the n = 2 quantum state. what is the wavelength, in nm, of the emitted photon?
232 nm is the wavelength of the emitted photon.
[tex]E = (h^{2} /8mxL^{2} )* n^{2}[/tex]
For n=3 we a energy equal :9.62 * 10^-19 J= 6.01 eV
For n=1 the energy is: 1.069 *10^-19 J=0.66 eV
The energy difference Is 5.35 eV so by using this relationship
λ=1240/Energy = 232 nm
What is a wavelength ?A waveform signal's wavelength is defined as the separation between two identical points (adjacent crests) in adjacent cycles as the signal travels through space or along a wire. This length in wireless systems is typically expressed in meters (m), centimeters (cm), or millimeters (mm) (mm).
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a cannonball explodes into several fragments in mid-air. the total momentum of the fragments after this explosion: group of answer choices is the same as the momentum of the cannonball immediately before the explosion is more than the momentum of the cannonball immediately before the explosion is less than the momentum of the cannonball immediately before the explosion has been changed into the kinetic energy of the fragments has been changed into radiant energy
If a cannonball explodes into several fragments in mid-air the total momentum of fragments after this explosion will be the same as the momentum of the cannonball before the explosion.
According to the Law of Conservation of Momentum, the momentum of two or more bodies remains conserved unless an external force acts upon them.
In the given case, the force acting on the cannonball is the gravitational force which is the same as the force acting on the fragments of the cannonball after the explosion.
As the forces are the same in both cases, the momentum before and after collision remains the same.
Thus, If a cannonball explodes into several fragments in mid-air the total momentum of fragments after this explosion will be the same as the momentum of the cannonball before the explosion.
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A bicyclist accelerates at a constant rate from a standstill to 30 km/hr in 45 sec. a) how fast is the bicyclist traveling after 35 sec? b) how far has the bicyclist traveled after 45 sec?
distance travelled by bicycle after 35 sec = 30 X 35/ 3600 = 0.27km and after 45 sec is 0.3km by a velocity 30km/hr
we know by the formula velocity= d/t so 30km/h after 40 seconds = 40/ 3600=0.01hr
so distance travelled by bicycle after 35 sec = 30 X 35/ 3600 = 0.27km and after 45 sec is 0.3km.
The pace at which an object's position changes as perceived from a particular point of view and as measured by a particular unit of time (for example, 60 km/h northbound) is defined as its velocity. Velocity is a fundamental concept in kinematics, the branch of classical mechanics that deals with the motion of bodies.
In order to be defined, the physical vector quantity known as velocity needs to have both a magnitude and a direction. In the SI, speed is a coherent derived unit whose quantity is expressed in meters per second as the scalar absolute value (magnitude) of velocity (metric system).
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A carnot engine operates on steam between 65 c and 425 c. what is the ideal efficiency?
A Carnot engine operates on steam between [tex]65^0[/tex] and [tex]425^0[/tex]. The ideal efficiency of the Carnot engine will be -1.065.
How to calculate the efficiency of the Carnot engine?
To find efficiency of the Carnot engine, following formula is used:
[tex]\eta =1-\frac{T_2}{T_1}[/tex]
where, [tex]T_1, T_2[/tex] are the temperatures on which the engine operates. They are always in Kelvin.
Now, we will convert Celsius to Kelvin.
[tex]65^0=338.15K\\425^0=698.15K[/tex]
Substituting the values in the formula,
We get:
[tex]\eta = 1-\frac{698.15}{338.15} \\\eta = 1-2.065\\\eta = -1.065[/tex]
Hence, the ideal efficiency of the Carnot engine will be -1.065.
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What training intensity is required during the working rounds in high-intensity interval training (hiit)?
High-intensity exercise which is called as hiit to raise heart rate greatly to at least 80% of one's maximal heart rate.
What is high-intensity interval training?High-intensity interval training is a style of exercise that relies almost entirely on the anaerobic energy release mechanism and alternates brief bursts of vigorous or explosive anaerobic activity with brief rest periods till exhaustion.
High Intensity Tactical Training (HITT), a comprehensive strength and conditioning programme that includes programming, facilities, and training, is open to Marines who are on active duty and those who are in the reserves. It places a focus on physical toughness and readiness for war.
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You decide to start running to get ready for a cross country race. You run 8 miles north and stop to take a small break. You then run 3 miles west before finally running 7 miles south. What is the total distance that you traveled?
The total distance traveled will be 18 miles because distance and displacement are different.
While distance and displacement appear to have the same meaning, they actually have very different definitions and implications. Displacement is the measurement of "how far an object is out of place," whereas distance refers to "how much ground an object has covered during its motion."
Distance is the sum of an object's movements, regardless of direction. The distance can be defined as the amount of space an object has covered, regardless of its starting or ending position.
Δd = d1 + d2 + d3.....
The term "displacement" refers to a shift in an object's position. It is a vector quantity with a magnitude and direction. The symbol for it is an arrow pointing from the initial location to the ending place.
Displacement = Final position - Initial position
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the g string on a guitar is a 0.44-mm-diameter steel string with a linear density of 1.1 g/m . when the string is properly tuned to 196 hz, the wave speed on the string is 250 m/s. tuning is done by turning the tuning screw, which slowly tightens-and stretches-the string.
The G string on a guitar stretches by 1.696 mm when it is first tuned by using the formula of young's modulus.
Expression for the velocity of the waves on the stretched string
ν = √T/μ
Where, T = tension on the string
250 =√T/ 1.1 × 10⁻³
T = 68.75 N
The young modulus of the steel is given by
Y = 200 × 10⁹ Pa
Y = (T/A)/(Δl/l)
Δl = Tl/AY
By putting the values, we get,
Δl = 68.75 × 0.75/ 200 × 10⁹ × π × (0.22 × 10⁻³)²
Δl = 1.696 × 10⁻³m
Or, Δl = 1.696 mm
Hence, by 1.696 mm, the G string stretch when it is first tuned.
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you put a bottle of soft drink in a refrigerator and leave it until its temperature has dropped 10.0 k. what is its temperature change in (a) ◦f and (b) ◦c?
The correct answer is F = 18.
Given that it is a physical quantity, the temperature has units that can be used to measure it. Kelvin is used as the SI unit of temperature. However, we also use the units of Celsius and Fahrenheit to measure temperature. The temperature units are connected in the following way:
C = 5/9 (F - 32)
K = C + 273
Temperature is a physical characteristic that can be used to determine how cold or hot a body is. The scales to utilise for recording temperature are Celsius, Kelvin, or Fahrenheit, and these scales have a correlation to convert one reading into another scale reading.
Temperature change in Kelvin, K = 10K
Temperature change in Celsius
C = K
or C = 10
Temperature change in Fahrenheit
F =1.8C
or F = 1.8 x 10
or F = 18.
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What is the name for the difference between the value in the null hypothesis and the true population parameter?
Effect size is the name for the difference between the value in the null hypothesis and the true population parameter.
What is population parameter?A population parameter in statistics is a value that expresses information about a large group or population. It is important to distinguish between this and parameters, which are constant values for a particular mathematical function in other branches of mathematics.
Additionally, keep in mind that a population parameter is not a statistic, which provides information on a sample, or subset, of a particular population. You might be able to get a statistic that accurately represents the true value of a population with a well-designed study.
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The+amplitude+of+an+oscillator+decreases+to+36.8%+of+its+ini-+tial+value+in+10.0+s.+what+is+the+value+of+the+time+constant?
The oscillator's amplitude decreases with time at a time constant of five.
Given the information below:
0.368 as the amplitude fell by 36.8%.
10.0 seconds have passed.
To calculate the time constant's value:
Mathematically, the formula: gives the amplitude for damped harmonic motion.
[tex]X/X_{o} =e^{t/2r}[/tex]
t is the time.τ is the time constant.X is the instantaneous value of amplitude.[tex]X_{0}[/tex] is the initial value of amplitude.Substituting the given parameters into the formula, we have:
Time constant = 5
What is the amplitude of the oscillator?
The amplitude of oscillation is defined as distance from the mean or equilibrium position to either extreme. Oscillation is termed as one complete to and fro motion of the particle from its mean position.
What is meant by harmonic oscillation?
In classical mechanics, a harmonic oscillator is a system that, when displaced from it's equilibrium position, experiences a restoring force F proportional to the displacement x , where k is a positive constant.
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Assume baldwin is producing 2,325 units of bill next year. what would bill's plant utilization be?
The plant utilization Baldwin is producing 2,325 units of bill next year be 155%.
What is plant utilization of electricity?The ratio of a piece of equipment's actual use time to its prospective use time is known as the utilisation factor, often referred to as the utilisation factor. The ratio is typically explained as being the sum of the energy used throughout time divided by the maximum amount that might be used.
The "end result" of the production, transmission, and distribution of electric power is utilisation. At the utilisation point, the energy transported by the transmission and distribution system is converted into usable work, light, heat, or a combination of these things.
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to be effective, why must agreement aimed at preventing or reducing ozone depletion be international?
I have to get it done.. it's pass due
The agreement must be aimed at preventing or reducing ozone depletion internationally to save the ozone layer from more damage.
Why must agreements aimed at preventing or reducing ozone depletion be international?The agreement must be aimed at preventing or reducing ozone depletion internationally because ozone depletion is the most dangerous cause of human activities such as chlorofluorocarbon gas. Ozone is the protective layer that can filter incoming solar radiation from harmful ultraviolet radiation. The Montreal Protocol is a global agreement to protect the ozone layer of the earth by preventing the use of chemicals that deplete it.
So we can conclude that the agreement must be aimed at preventing or reducing ozone depletion internationally to save the ozone layer from more damage.
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What is the equiliibrium constant k for a redox reaction involving the transfer of 6 mol electrons?
The equilibrium constant for a chemical reaction is equal to the value of the reaction. The equilibrium constant that is denoted by k is Keq = 1.8E4
What is equilibrium constant ?The equilibrium constant for a chemical reaction is equal to the value of the reaction quotient at chemical equilibrium, a state that a dynamic chemical system approaches when enough time has elapsed and at which its composition has no observable tendency to change further.
We know that,[tex]\Delta G = -nFE0[/tex]
and,[tex]\Delta G = - RT ln Keq[/tex]
So, ln Keq = (nFE0 ) / (RT) ----- (i)
E₀ = standard cell potential = 0.042 V
n = number of electrons transferred in the rxn = 6
F = 96,485 C/mol ,
R = 8.314 J / mol * K
As T is not given so assuming it to be room temperature. So, T = 298 K
Putting all the values in equation (i):
ln Keq = (6 X 96,485 C.mol-1 X 0.042 V ) / (8.314 J mol-1 K-1 X 298 K)
ln Keq = 24314.22 C.V / 2477.572 J
Now, 1 coloumb X 1 volt = 1 joule
So, ln Keq = 24314.22 / 2477.572 = 9.814
Keq = 18288
Rounding to two significant figures:
Keq = 18000 = 1.8 X 104
So in scientific notation: Keq = 1.8E4
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Zsm-5, a catalyst material, has a surface area of 425 m^2/g. what is the surface area of this material in cm^2/mg?
The surface area of the material in cm²/mg is 4250 cm²/mg
How to convert 425 m²/g to cm²/gWe'll begin by converting 425 m²/g to cm²/g. This can be obtained as follow:
1 m²/g = 10000 cm²/g
Therefore,
425 m²/g = (425 m²/g × 10000 cm²/g) / 1 m²/g
425 m²/g = 4250000 cm²/g
How to convert 4250000 cm²/g to cm²/mgWe can convert 4250000 cm²/g to cm²/mg as follow:
1000 cm²/g = 1 cm²/mg
Therefore,
4250000 cm²/g = (4250000 cm²/g × 1 cm²/mg) / 1000 cm²/g
4250000 cm²/g = 4250 cm²/mg
Thus, we can conclude that the surface area in cm²/mg is 4250 cm²/mg
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consider an airplane flying at a pressure altitude of 33,500 ft and a density altitud of 32,000 ft. calculate the outside air temperature.
The outside air temperature is 1° C.
Pressure is defined as the force applied to an object per unit area. It's represented by the symbol 'P'. The SI unit of pressure is Pascal (Pa).
The pressure altitude at which the aeroplane is flying = 33500 ft
The density altitude at which the aeroplane is flying = 3200 ft
The outside air temperature is,
[tex]T= \frac{ P}{ pR}[/tex]
The pressure altitude in Pascal is,
33500 ft = 23.800 Pa
The density of the altitude in Pascal is,
3200 ft = 1.225 Pa
[tex]Temperature = \frac{Pressure } {Density \times Gas \: constant }[/tex]
[tex]T= \frac{ P}{p \times R}[/tex]
[tex]T = \frac{23.800}{1.225 \times 287.05} [/tex]
T = 1° C.
Therefore, the outside air temperature is 1° C.
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if the total magnification using a microscope is 800x and the objective magnifies the object 40x, what would the magnification be from the lens in the ocular?
The ocular microscope magnification is 20x.
We need to know about microscope magnification to solve this problem. Microscope is a device utilized for seeing a small object. The microscope has two lenses which are objective and ocular. The total magnification of the microscope lens is
M = Moc x Mobj
where M is total magnification, Moc is ocular magnification and Mobj is objective magnification.
From the question above, we know that
M = 800x
Mobj = 40x
By substituting the following parameter, we get
M = Moc x Mobj
800 = Moc x 40
Moc = 800 / 40
Moc = 20x
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If a glass has an index of refraction, n = 1.52, what is the speed of light inside the glass? show calculations with equation and numbers plugged in.
If a glass has an index of refraction, n = 1.52,
The speed of light inside the glass will be [tex]1.97\times10^8m/s[/tex].
How to find the refractive index?
To find the refractive index of a material, following formula is used:
Refractive index = Speed of light in air / Speed of light in the crown glass
We are given the value of refractive index is 1.52.
We know that the speed of light is [tex]3\times10^8m/s[/tex].
We will substitute the numerical values in the formula, we get:
[tex]1.52=\frac{3\times10^8m/s}{\text{ Speed of light in crown glass} \text}\\[/tex]
[tex]\text{ Speed of light in crown glass} \text=\frac{3\times10^8}{1.52}[/tex]
Hence, the speed of light inside the glass will be [tex]1.97\times10^8m/s[/tex].
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You synthesize an rna in a reaction containing a 2:1 ratio of ctp and utp (2c:1u). the codons for proline are ccu, ccc, cca, and ccg. what proportion of triplets will encode proline?
only cca and ccu code can encode for proline and utilized in reaction containing a 2:1 ratio of ctp and utp
The rate-limiting stage of de novo CTP biosynthesis is the conversion of uridine triphosphate (UTP) into cytidine triphosphate (CTP), which is mediated by cytidine triphosphate synthetase (CTPS) (Scheme 17). 46,178. Therefore, CTPS activity controls the rates of RNA, DNA, and phospholipid synthesis occurring inside of cells
A codon is a DNA or RNA sequence of three nucleotides (a trinucleotide) that forms a unit of genomic information encoding a particular amino acid or signaling the termination of protein synthesis (stop signals). There are 64 different codons: 61 specify amino acids and 3 are used as stop signals.
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What does acceleration measure?
A. Change in velocity over time
B. Change in speed over time
C. Change in distance over time
D. Change in displacement over time
Answer: A.) Change in Velocity over Time
Explanation:
The definition of acceleration is Δv/t, or the change in velocity over time. Acceleration, like velocity, will therefore have a magnitude, as well as a direction.
A 100g sample of radioactive material has decayed to 25g in 12 hours what is the half-life?
Answer:
24 hrs
Explanation:
12 hrs =25 g
24hrs = 50g