The Milgram Experiment with Shock By Saul McLeod, 2017 update One of the most well-known experiments on obedience in psychology was conducted by Yale University psychologist Stanley Milgram.
He conducted an experiment that looked at the tension between following orders and one's conscience. Stanley Milgram, a social psychologist at Yale University, conducted the Milgram experiment (or experiments) on compliance to authoritative persons. November 5, 2018 revision. Stanley Milgram, a psychologist, investigated the ideas of submission and authority in a number of research in the 1960s. His studies comprised giving study participants orders to shock an actor in a different room with shocks of increasing voltage; the actor would scream at first and then go silent as the shocks grew stronger.
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In an independent-measures experiment with three treatment conditions, all three treatments have the same mean, M1 = M2 = M3. For these data, what is the value for SSbetween treatments?
a. 3(5.50)
b. 0
c. 1.00
d. Cannot be determined from the information given
A is the answer 3(5.50) .Three of the treatment means in a two-factor experiment with two levels of factor A and two levels of factor B are almost identical, while one is significantly different from the others. What outcome (s) would this course of treatment achieve?
When analysing variance, the differences that exist when there are no treatment effects are measured using the variance within treatments. By summing the SS values across all treatments and dividing by the total of the df values across all treatments, this value is obtained. By summing the SS values across all treatments and dividing by the total of the df values across all treatments, this value is obtained. A study evaluating three therapies with a n = 10 sample size
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A student measures the speed of sound by echo destiny classes hands and then measures the time to hear the echo his distance to the wall is 300 m The time delay between clap an echo is 1.5 seconds. Calculate the speed of sound
The calculated value of speed of sound be 400 m/s.
What is echo?An echo is a sound produced when sound waves are reflected off of a surface and returned to the listener. It is the sound that has been reflected, and it reaches the listener after the original sound has passed.
Given parameters:
The student's distance to the wall is = 300 m.
The time delay between clap an echo is 1.5 seconds.
In this time, sound waves goes to the wall and hits back to the student's ear.
So, total distance covered by the sound wave: d= 2 × 300 m = 600 m.
Hence, the speed of sound be - 600 m/1.5s = 400 m/s.
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a steel cable supports an actor as he swings onto the stage. the weight of the actor stretches the steel cable.a. both shear modulus and bulk modulus. b. Young's modulusc. bulk modulus.d. shear moduluse. both Young's modulus and bulk modulus.
A steel cable supports an actor as he swings onto the stage. Yhe weight of the actor stretches the steel cable. This is related by Young's modulus. So, the correct option is b.
The ratio of stress applied to the material to the corresponding strain developed within the proportional limit is defined as Young's modulus. It is a measure of stiffness of the material but up to a elastic/proportional limit. From Hooke's law Stress=Y×Strain, where Y is Young's modulus. SI unit of Young's modulus is Pascal. Stress is equal to Force/area and strain is change in dimension/ original dimension. Therefore, it is related by Young's modulus.
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Complete question- A steel cable supports an actor as he swings onto the stage. The weight of the actor stretches the steel cable. To describe the relationship between stress and strain for the steel cable, you would use a) both shear modulus and bulk modulus. b) Young's modulus. c) bulk modulus. d) shear moduluse e)both Young's modulus and bulk modulus
if we knew how much work was needed to push the car off the cliff in just five seconds, could be calculated.
It is your job to lift the stone from the ground. Carrying a stone in a straight line across the grass at a constant speed doesn't work.
Kinetic energy is directly proportional to the square of the object's mass and velocity. If the mass is in kilograms and the velocity is in meters/second, then the kinetic energy is in kilograms meters squared/second.
Crash Energy Conversion Most of the kinetic energy in the crash process is converted into the internal energy of the vehicle. This is because the internal energy increases significantly due to the plastic deformation of the metal after the collision. Another kinetic energy is converted into heat energy sound energy etc.
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At a beach the light is generally partially polarized due to reflections off sand and water. At a particular beach on a particular day near sundown, the horizontal component of the electric field vector is 3.4 times the vertical component. A standing sunbather puts on polarizing sunglasses; the glasses eliminate the horizontal field component. (a) What fraction of the light intensity received before the glasses were put on now reaches the sunbather's eyes? (b) The sunbather, still wearing the glasses, lies on his side. What fraction of the light intensity received before the glasses were put on now reaches his eyes?
The horizontal component of a force represents the part of the force which acts in the horizontal direction with respect to the body.
What is horizontal component and vertical components?The horizontal velocity component (vx) describes the influence of the velocity in displacing the projectile horizontally. The vertical velocity component (vy) describes the influence of the velocity in displacing the projectile vertically.Given the data in the question;The horizontal velocity of a projectile is constant (a never changing in value), There is a vertical acceleration caused by gravity; its value is 9.8 m/s/s, down, The vertical velocity of a projectile changes by 9.8 m/s each second, The horizontal motion of a projectile is independent of its vertical motion.Vectors are mathematical representations that are directed and magnitude-based. The direction of a vector in a two-dimensional coordinate system is determined by the angle it makes with the positive x-axis. Here, vector V is split into two components: vx and vy. Vx is known as the Horizontal Component of the vector V.
The intensity is proportional to the electric field amplitude;
now, we assign the electric field of 1 to the vertical component and an electric field of 2.8 to the horizontal component
so;
Horizontal intensity = 1² = 1
Vertical intensity = 2.8² = 7.84
so total intensity = 1 + 7.84 = 8.84
fraction of the light intensity received before the glasses were put on now reaches the sunbather's eyes,
since the sunglasses blocks the horizontal intensity so only the the vertical intensity goes through;
hence
⇒ 1 / 8.84 = 0.1131 of the total intensity
Therefore, the glasses received 0.1131 of the total intensity,
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what direct current will produce the same amount of thermal energy, in a particular resistor, as an alternating current that has a maximum value of 2.45 a? enter the magnitude of the direct current (in units of amps) in the box given below.
To provide the same amount of heating power as an alternating current with a peak value of 3.5 A, a given resistor has to have a direct current running through it of around 2.5 A.
In a series circuit, there is only one channel for electrons to take, hence the current is the same magnitude all the way around the circuit. A series circuit's total current is equal to the current flowing through all of its resistances.
The value of a sinusoidal voltage (or any other time-varying voltagerms )'s value is equal to the value of a dc voltage that generates an equivalent quantity of heat (power dissipation) as a result of the circuit current flowing through a resistance.
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FILL IN THE BLANK. The wind is moving from a rough to a smooth surface; at the same height wind over the smooth surface gets with fetch. a) faster b) slower c) None of the above
Option A, The wind is moving from a rough to a smooth surface; at the same height wind over the smooth surface gets faster with fetch.
The wind can move more quickly over a smooth surface as compared to a rough one at the same height. This is known as fetch. The exchange of momentum between the atmosphere and the ocean is facilitated by surface winds, which generate ocean waves and drive ocean circulation.
This circulation transports heat and carbon around the globe. As the roughness of the surface increases, the wind speed at the surface decreases. However, when the roughness length is shorter, there is less exchange between the surface and the atmosphere but the winds near the surface become stronger.
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Rank the following from greatest to least for the percentage of its volume above the water line: a. Basketball floating in fresh water b. Basketball floating in saltwater c. Basketball floating in mercury
Basketballs floating in saline water, mercury, and air are all examples of the same phenomenon (basketball floating in fresh water.)
What is the liquid's volume?The volume of liquid that a vessel holds is measured in standard units as the liquid measurement. It is sometimes referred to as the vessel's "volume" or "capacity." Juice bottle with a 1 liter capacity and a baby milk bottle with milliliter measuring indications.
Briefing:Fresh water density, salt water density, and mercury density
Volume submerged times liquid density times gravitational acceleration equals buoyant force.
It will submerge less because hydrostatic pressure will be greater than in mercury.
The height of the basketball above the water is lower in fresh water than salt water or mercury.
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gelified acetate-based water-in-salt electrolyte stabilizing hexacyanoferrate cathode for aqueous potassium-ion batteries
In recent years, gelified acetate-based water-in-salt electrolyte stabilising hexacyanoferrate cathode for aqueous potassium-ion batteries has gained popularity.
Here, water activity in "Water-in-salt" electrolytes (WiSE) based on potassium acetate (KAc) is investigated using Raman and classical molecular dynamics (MD), demonstrating the significantly reduced water activity of these WiSEs because water can be efficiently coordinated by both the acetate anion and the potassium cation. It is discovered that the overall molecular arrangement resembles the "sponge-like" shape seen in several ionic liquids. According to comprehensive electrochemical, scanning electronic microscopy (SEM), and X-ray photoelectron spectroscopy (XPS) study, such WiSE can also be compatible with Al current collectors with appropriately adjusted composition. However, due to the limited stability of the cathode material in the alkaline environment, the use of inexpensive potassium manganese hexacyanoferrate (KMHCF) in combination with these electrolytes is hampered by poor cycling performance.
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1. When might an ASDS be most useful and why?
2. How do Trappist-E, -F, and -G contrast with Earth?
3. Why is the greenhouse effect significant? Explain your reasoning.
4. Do you agree that humans are contributing to greenhouse gas levels? Explain your answer.
5. When might a rover be useful and why?
ASDA is found to be very proficient at detecting swirls in a variety of synthetic data with various levels of noise, implying our subsequent scientific results are astute.
What is ASDA?Applying ASDA to photospheric observations with a pixel size of 39.2 km sampled by the Solar Optical Telescope on board Hinode suggests a total number of 1.62 × 105 swirls in the photosphere, with an average radius and rotating speed of ∼290 km and <1.0 km s−1, respectively.
Comparisons between swirls detected in Bifrost numerical MHD simulations and both ground-based and space-borne observations suggest that (1) the spatial resolution of data plays a vital role in the total number and radii of swirls detected, and (2) noise introduced by seeing effects could decrease the detection rate of swirls, but has no significant influences in determining their inferred properties.
All results have shown that there is no significant difference in the analyzed properties between counterclockwise or clockwise rotating swirls. About 70% of swirls are located in intergranular lanes.
Therefore, ASDA is found to be very proficient at detecting swirls in a variety of synthetic data with various levels of noise, implying our subsequent scientific results are astute.
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Answer:
When might an ASDS be most useful and why?
Autonomous Spaceport Drone Ships would be helpful when a spacecraft needs to land in the ocean, for example. These prevent the rocket from being damaged by the water. These are typically used when a spacecraft doesn’t have enough fuel to reach its planned landing spot.
How do Trappist-E, -F, and -G contrast with Earth?
Trappist-E, -F, and -G are the planets that orbit in the habitable zone. They all have a high possibility of having water, similar to Earth. These planets are about the same size as Earth but they have about 100 times more water.
Why is the greenhouse effect significant? Explain your reasoning.
Greenhouse gases is likely what has caused the increase of warmth on our planet (global warming). People add to these greenhouse gases and they trap heat. We don’t know exactly what will be the outcome of the rise in these gases, but so far they have largely contributed to global warming.
Do you agree that humans are contributing to greenhouse gas levels? Explain your answer.
Yes, I do agree. People add to the heat-trapping greenhouse gases, like carbon dioxide, methane, nitrous oxide, and chlorofluorocarbons. Methane, for example, is increased when landfills are made of coal is mined, both of which are human activities.
When might a rover be useful, and why?
A rover might be useful when we are exploring places that aren’t safe for people. Another time rovers might be helpful is when we are exploring places that humans literally can’t go to or conduct research on because of what the planet is made out of. Since a rover isn’t human it can’t experience feelings or get hurt (it can be damaged, but that wouldn’t lose a life) therefore, it’s safer to send a rover at least until we can find out if it’s safe or not.
Explanation:
I had to do this in class
A hyper 3kg squirrel accelerates uniformly from rest to a speed of 15 m/s in 0.7 seconds. Find the
average acceleration of the squirrel.
Answer: 21.4 m/s²
Explanation:
avg. accel. = (Vfinal - Vinitial) / Δt
Vfinal = 15 m/s
Vinitial = 0 m/s
Δt = 0.70 s
avg. accel. = (15 m/s - 0 m/s)/0.7 s = 21.4 m/s²
when you calculate for the heat necessary for a phase change such from water to steam, you don't need a temperature in your calculation. t/f
Yes, the statement is true, that when we calculate for the heat necessary for a phase change we do not need a temperature in a calculation.
The heat required for the state change of a material is given by the formula,
Q = mL
Where Q is the heat required M is the mass of the material and l is the latent heat of the material.
As we can see from the above formula there is no requirement of the change in temperature of the material in order to calculate the necessary heat for the phase change such as water to steam.
It has to be noted here that when we calculate the heat required during the same phase of the material requires the knowledge of change of temperature.
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What are organisms that make their own food called a consumers B carnivores C omnivores D producers?; What capture energy from the sun and make their own food?; Which rely on other organisms for their energy and food supply?; Which organisms are producers in this food web Why are they considered producers?
The organisms that make their own food are called producers because the capture energy from the sun and make their own food. Consumers rely other organisms for their energy and food supply. The organisms that are producers are plants.
In the food web There are several levels in which organisms are divided into producer and consumers. The consumers are those which rely on other organisms for their food energy supply.
The producers are those organisms which make their own food by capturing the energy from the Sun and performs photosynthesis for their food production. In any food web the producers are mainly the plants that performs photosynthesis.
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250 students sit in an auditorium listening to a physics lecture. because they are thinking hard, each is using 125 w of metabolic power, slightly more than they would use at rest. an air conditioner with a cop of 7.5 is being used to keep the room at a constant temperature. What minimum electric power must be used to operate the air conditioner?
The minimum electric power that must be used to operate the air conditioner is 6250 W.
The total students in the auditorium are n = 250
The metabolic power each student is using is p = 125 W
The coefficient of performance ( COP ) of the air conditioner is given as 5 to maintain a constant temperature inside the auditorium.
Let the minimum electric power that must b used to run the air conditioner be P.
We know that
COP = np / P
P = np / COP
= ( 250x 125 ) / 5
= 6250W
So, 6250 W power is the minimum power.
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which factor leads to interference between waves? (2 points) a varying phase relationship between waves similar wave amplitudes unequal wavelengths radiation through different regions
The factor that leads to the interference of the waves is a varying phase relationship between waves.
What is interference of waves?The term interference of waves has to do with the way and manner in which two waves are able to combine. The waves may combine constructively or destructively.
If the waves combine constructively, this implies that the disturbance of the waves is increased but if the wave combines destructively then it means that degree of the disturbance of the waves is decreased.
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Answer:
Similar wave amplitudes
Explanation:
I got it right on the test.
if the intensity of the song of Brown Creeper at your position is 1.4×10^-8wm-2 and frequency is 6kHz,what are the pressure and displacement amplitudes ?
pressure amplitude = 3.43 mPa and displacement amplitudes = [tex]2.16*10^-^1^0[/tex] m
Intensity and pressure amplitude is = I =Δp^2/2pv
I is the intensity of the sound wave
Δ is the pressure amplitude
v - velocity of a sound wave and p - density of air
where as; p= 1.225kg/m^3
I = 1.4×10^-8W/m^2
V = 343 m/s
Δp= [tex]\sqrt{2pvI[/tex]
ie., [tex]\sqrt{2*1.225*343*1.4*10^-^8[/tex] = 3.43 mPa
Intensity and displacement amplitude = [tex]I=2π^2pf^2vΔs^2[/tex]
where; f= frequency of sound
Δs = displacement of amplitude; I is the intensity of the sound wave
v - velocity of a sound wave and p - density of air
Δs=[tex]\sqrt{I/2\pi ^2pf^2v[/tex] = [tex]2.16*10^-^1^0[/tex]m
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Why does the sound of something moving away from you seem to change to a lower and lower pitch?; What happens when two sound waves meet in constructive interference apex?; In what way are all sound waves and light waves similar?; How is the amplitude of waves affected by destructive interference?
The given situation is because of the phenomena of Doppler's Effect.
How does the sound gets faint ?You may have observed that the pitch of a siren decreases sharply as it passes you at a high rate of speed. When the pitch is higher, the siren first approaches you. The siren is moving away from you and becomes quieter once it has passed you. The Doppler effect is manifested in this way.
The region that the sound waves cover grows as one gets farther from the source of the sound. The intensity and loudness of the sound are reduced because the same quantity of energy is dispersed over a larger region. This explains why, as you get further away from the source, even strong noises start to diminish.
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The Harrier Jump Jet is a fixed wing military jet designed for vertical takeoff and landing (VTOL). It is capable of rotating its jets from a horizontal to a vertical orientation in order to takeoff, land and conduct horizontal maneuvers. Determine the vertical thrust required to accelerate an 8600-kg Harrier upward at 0.40 m/s/s
Vertical thrust = 8600 kg x 0.40 m/s/s = 3440 N
Suppose monochromatic, coherent light of wavelength 585 nm is incident on a pair of slits with separation 0.24 mm. On a screen 1.63 m away, find the distance of the second maximum from the center line of the central maximum. Answer in millimeters.
56mm is the distance of the second maximum from the center line of the central maximum. coherent light of wavelength 585 nm is incident on a pair of slits with separation 0.24 mm.
Given information
wavelength = 585 nm
D = 1.63m
d = 0.24mm
m = 2
SinΘ = (m+ 1/2) A x wavelength x d = Sing= (2+↓ 2 X 0.24X183
SinΘ = 6·093.75×10^- = 6.09703N-3
Θ= Sin-1 ( 0·00609) = 0.34
Y= D tanΘ is y = (1.63) tan (0.34)
Y = 9.49 x10-3 m. = 0.056 m= 56mm.
A waveform signal that is carried in space or down a wire has a wavelength, which is the separation between two identical places (adjacent crests) in the consecutive cycles.
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What happens when light rays pass from air to water?; What is the bending of light rays due to a change in?
When light rays enters from air to water, its speed decreases. It bends towards the normal.
Refraction is the bending of light because of a change in medium. There may be two ways of bending light- towards the normal or away from the normal.
Optical density is the concept that determines the way the light will bend while changing the medium. A medium in which the speed of light is less is called an optically denser medium, and a medium in which the speed of light is more is called an optically rarer medium.
When light enters from an optically rarer medium to an optically denser medium, its speed decreases, and it bends toward the normal. When light enters from an optically denser medium to an optically rarer medium, its speed increases, and it bends away from the normal.
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why is the signal preferred over analogue signal for telecommunication?
The communication systems used analog signaling (telephones) are used but as the technologies use digital signals because of some advantages.
What is telecommunications?The term telecommunication refers to the transmission and exchange of information from one place to another. Telecommunication is beneficial for saving time, energy, and money. Nowadays, the companies are mainly used in telecommunication.
Telecommunications are mainly based on signals. Telecommunication is a type of electronic transaction that uses telephone, radio, data, image, optical, and electromagnetic waves. The electromagnetic spectrum means the frequency and wavelength of radiation. Signal which are continuous as time varies are analog signals.
Thus, examples of analog signals are Human voice, Thermometer, Analog phones etc. The advantage of digital technology are noise immunity, encryption, bandwidth efficiency, and the ability to use repeaters for long-distance transmission.
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What did Hubble discover about a distant star?; What is Hubble's most famous image?; What do you observe about the stars in the Hubble image?; How many pictures did the Hubble telescope take?
Hubble discovery are Pillars of Creation, Telescope takes more than 4 images, Things farther from Earth were moving away faster.
Hubble made the amazing discovery that a galaxy's redshift exactly correlated with its distance from the earth. That implied that objects farther from Earth were dispersing more quickly. To put it another way, the cosmos must be growing. In 1929, he made his discovery public.
The "Pillars of Creation," three huge cosmic dust and gas trunks that appear in one of the most well-known Hubble images, are officially known as Messier 16 (M16), and they are a component of the larger Eagle Nebula (opens in new window).
Many contenders for the most distant galaxy ever detected have been found in the 2009 infrared picture of the Hubble Ultra Deep Field, which has proven an extraordinarily rich hunting field for astronomers who study the early Universe.
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An SUV's engine provides 3500 N of force for a vehicle that has a mass 2000 kg. If an engineer develops a new chassis for the SUV that is two times the mass, what is the acceleration of the vehicle with the new chassis?
A. 0.88 m/s^2
B. 5.7 m/s^2
C. 1.75 m/s^2
D. 1.14 m/s^2
Answer:
A. 0.88 m/s²
Explanation:
Newton's second law:
F = ma
The force is 3500 N, and the mass is 2×2000 kg = 4000 kg.
3500 N = (4000 kg) a
a = 0.88 m/s²
2. (5 points) consider the following circuit. find the complex power of the load (consisting of li, c1, and r1). you must show voltage polarities and current directions. l1 2h c1 1f sqrt(2) cos(t) v v1 r1 1ohm load
An electrical circuit is made up of bigger metal sections called planes and embedded metal surfaces called traces on a rigid framework called a printed circuit board.
What Is a Printed Circuit Board?An electrical circuit is made up of bigger metal sections called planes and embedded metal surfaces called traces on a rigid framework called a printed circuit board. The board's metal pads, which connect components to the board's circuitry, are soldered with solder. Components may now be connected thanks to this. One, two, or more circuitry layers can be present on a board.To ensure pure circuitry transmission, circuit boards are constructed with a dielectric core material with limited electrical conductivity, and as necessary, additional layers of metal and dielectric are placed between the core and the interstices. The copper-based metal lines and planes that make up the circuitry are typically employed as the circuit board's standard dielectric material, which is a flame-resistant composite made of woven fiberglass fabric and epoxy resin.
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a researcher is interested to find out how the engine displacement, vehicle weight, and the type of transmission [i.e. automatic
Critical value for F test is 2.24 . t-test statistic for 'Displacement is -1.993
The t-test show whether two populations are statistically different from each other. ANOVA show whether three or more populations are statistically different from each other. Both of them uses the difference in means and the spread of the distributions (called variance) across groups.
We get a test statistic value (“t” or “F”, respectively) from t test and ANOVA. The value we get are converted into a “p-value.” A p-value is the probability that the null hypothesis (that both (or all) populations are the same) is true. We can say that, a lower p-value reflects a value more significantly different across populations.
t-test statistic for 'Displacement' = coefficients / standard error = -0.0176/0.00883 = -1.993
We find critical value with given significance level using F distribution table as 2.24
F Critical Value = the value found in the F-distribution table with n1-1 and n2-1 degrees of freedom and a significance level of α.
The question is incomplete. The complete question is
A researcher is interested to find out how the engine displacement, vehicle weight, and the type of transmission [i.e. automatic & manual] affect the automobile gasoline mileage. Type of transmission is represented by one dummy variable: automatic (=1, if transmission is automatic; = 0, if transmission is manual)
Part of the raw data and the regression output of 40 different car models are given below. ( see images).
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What constitutes an electric current in a metal?; What is an electric current ?; Which particles move in a metal to cause an electric current?; How does electrical current flow?
Electrons are negatively charged particles and they transfer energy through wires as electricity electrons are responsible in metal to cause an electric current.
Some of an atom's outside electrons are free to travel throughout the metal lattice in a metal rather than being attached to specific molecules as they are in insulating materials or entire bands in molecular solids. These conduction electrons are capable of acting as current-carrying charge carriers. Because there are so many of these free electrons in metals, they are very conductive. These electrons travel at random due to thermal energy in the absence of an external electric field, but there is typically no net current flowing through the metal. These erratic movements move at an average pace of 106 metres per second at room temperature.
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What type of energy does the pendulum have when it is hanging straight down?; At which position of a pendulum kinetic energy is maximum?; What point in the pendulum is the potential energy maximum?; Where in the pendulum swings path is the kinetic energy the greatest Where is the potential energy the greatest?
Kinetic energy is the energy that the pendulum have when it is hanging straight down and at the lowest point pendulum is the potential and kinetic energy is maximum.
A simple pendulum consists of a small mass suspended on an approximately massless, non-stretchable string. It is free to oscillate from side to side. The forces acting on the mass are the force of gravity and the tension in the string.
The tension cancels out the component of mg that lies along the string; this keeps the object from accelerating in the direction of the string, and thus keeps the string's length constant.
The net force is simply the remaining component of mg, which is pointed perpendicular to the string and is equal to Fnet=-mgsinФ
The pendulum only has gravitational potential energy, as gravity is the only force that does any work. The total energy of the pendulum is the potential energy at the maximum displacement, when the displacement is equal to the amplitude is 1/2mgLA^2.
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A square steel bar of side length w = 0.13 m has a thermal conductivity of k = 14 J/(s?m?ÂC) and is L = 2.8 m long. Once end is placed under a candle so that the temperature is T1 = 75Â C while the other end rests on a block of ice so that the temperature is a constant T2. 1) Input an expression for the heat transferred to the cold end of the bar as a function of time, using A = w2 as the cross-sectional area of the bar. 2) How much energy, in joules, was conducted in 1 hour, assuming T2 = 0Â C? 3) Input an expression for the mass of the water melted in 1 hour using Q1 from above and Lf the latent heat of fusion.
The amount of energy required for heat transfer and mass of melted ice is 25917.84J and 77.83g respectively.
Latent heat arises from the work required to overcome the forces that hold the atoms or molecules within the material together. The regular structure of crystalline solids is maintained by the attractive forces between individual atoms. The attractive force oscillates slightly around its mean position in the crystal lattice. As the temperature increases, these movements become more violent, and at the melting point the attractive forces are no longer sufficient to maintain the stability of the crystal lattice. However, additional heat (latent heat of fusion) must be supplied (at constant temperature) to make the transition to a more disordered liquid state. In the liquid state, individual particles are no longer held at fixed grid points. It can move freely in liquids. Liquids differ from gases in that the attractive forces between particles are sufficient to maintain long-range order, which gives liquids some degree of cohesion. The heat conduction formula is,kA(T1-T₂)/L=Q
Q(t) =Q
Q(t) is the heat transfer as function of the time.
The heat transfer as function of the time is,kw²(T₁-T₂)t
=(14J/sm°C)(0.13m)2(75°C-0°C)(1h 36008
2.8m
= 25917.84J
The amount of heat energy needed to to melt the ice is,Q = mL
Therefore, m =Q/L
=2.5917*10 J / 3.33*105J/kg
= .07783 kg = 77.83g
So, 77.83g of amount ice will be melt
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radioactivity is characterized by order kinetics, so the rate of decay in a particular sample the number of nuclei present.
Since the decay rate is dependent upon the number of radioactive atoms, in terms of chemical kinetics, one can say that radioactive decay is a first order reaction process.
What is radioactivity ?
Radioactive decay is the loss of elementary particles from an unstable nucleus, ultimately changing the unstable element into another more stable element. There are five types of radioactive decay: alpha emission, beta emission, positron emission, electron capture, and gamma emission. Each type of decay emits a specific particle which changes the type of product produced. The number of protons and neutrons found in the daughter nuclei (the nuclei produced from the decay) are determined by the type of decay or emission that the original element goes through.
Also, radioactive decay is an exponential decay function which means the larger the quantity of atoms, the more rapidly the element will decay. Mathematically speaking, the relationship between quantity and time for radioactive decay can be expressed in following way:
dN/dt=−λN
or more specifically
dN(t)/dt=−λN
or via rearranging the separable differential equation
dN(t)/N(t)=−λdt
by Integrating the equation
lnN(t)=−λt+C
with
C is the constant of integration.N(t) is the amplitude of N after lapse of time t.λ is the decay rate constant.To know more about radioactivity, visit:
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if you are charged with speeding 25 mph or more over the speed limit or at a speed 95 mph or greater
A Class B misdemeanor is committed when a driver exceeds the speed limit by twenty-six (26) to thirty-four (34) miles per hour. Court supervision is an option for sentences.
For a breach of this offence, you may receive a sentence of conditional release, probation, or up to two (2) years of court supervision. a misdemeanor that carries a fine or brief jail sentence as punishment. Common crimes like moving offences are typically adjudicated amicably, without a trial. The New Dictionary of Cultural Literacy, Third Edition Copyright by Houghton Mifflin Harcourt Publishing Company. (felony.) Aggressive driving practice's include speed. The general growth in aggressive driving has been attributed to a number of issues, with traffic congestion being one of the most commonly cited.
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The complete question is -
if you are charged with speeding 25 mph or more over the speed limit or at a speed 95 mph or greater. Which is committed when a driver exceeds the speed limit.
