The correct answer is their difference in the charge to mass ratio a mass spectrometer, a compound is first vaporized and converted into ions .
Mass spectrometry is a technique for determining the mass-to-charge ratio (m/z) of one or more molecules in a sample. These measurements are frequently used to calculate the precise molecular weight of the sample components.
The speed at which positively charged ions move through a vacuum chamber toward a negatively charged plate is measured by mass spectrometers. ToF, magnetic sector, and quadrupole mass spectrometers are all commonly used in SIMS instrumentation.The MS/MS has three major advantages: the ability to study numerous molecules regardless of whether they are from the same structural family or not; the ability to highlight the specific metabolites of a disease; and it is an automated technique that allows for large-scale analysis.
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When bill butcher of port city brews discusses shelf space and the way that a merger could increase the leverage potential of large brewers, he is discussing which competitive force?
He is discussing Bargaining Power of Buyers competitive force.
What do you understand by leverage?
The employment of various financial instruments or borrowed cash, or leverage, is an investing strategy that aims to improve an investment's potential return. The level of debt a company utilizes to finance its assets is another definition of leverage.
It offers a range of funding options so that the company can reach its desired earnings. Leverage is a crucial investing strategy because it enables businesses to establish a ceiling for the growth of their operations.
Leverage can be used, for instance, to support financially a new business. Purchasing fixed assets or borrowing money in the form of a loan from another business or person can serve as examples of leverage.
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physics.. pls answerr
a ball is thrown up with a velocity of 20m/s. find the time it takes to reach the maximum height and the distance covered?
Answer:
the ball will travel for 2 seconds and complete a distance of 20 metres upwards.
Explanation:
v = final velocity
u = initial velocity
a = acceleration
t = time
s = distance
In your question, the initial velocity is given as 20m/s , i.e., u=20m/s ,
the final velocity that the ball can achieve at the maximum height is 0m/s
, hence, v=0m/s .
Since the only first that cause the acceleration is gravity, a is taken as g where g is acceleration due to gravity, and had a value of 9.81m/s2 . But for simplicity, we can take the value of a to be 10m/s2 , so a=10m/s2 . Now, we need to find, what's s and t.
Note: Since the ball is thrown upwards, which is against the force of gravity (gravity always acts downwards), we need take the value of a (in this case, g) as −10m/s2 .
Using the first equation,
v=u+at
0=20−10t
10t=20
t=2
Using the third equation,
v2=u2+2as
02=202+2×(−10)×s
20s=400
s=20
Hence, the ball will travel for 2 seconds and complete a distance of 20 metres upwards.
Of wavelenghts that we can use most effectively for remote sensing which correspond to both an atmospheric window and/ or the peak energy level of the sun?
Remote sensing - it is the process of detecting the characteristics of an area measuring it's reflected and emitted radiation at a distance.
IR (Infrared) is the radiation emitted from earth surface in the form of heat.
The wavelength that we use most effective for the remote sensing is of range 3µm - 35µm.
This the longest wavelength used in remote sensing.
wavelength is distance between two crests or to trough.
It is denoted by λ
λ = v/f
where λ = wavelength
v = velocity
f = frequency
unit of wavelength is meter.
A peak is highest point of wave and valley is the lowest point.
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Glass is an example of a/an _____________.
Answer:
solid
Explanation:
it's not liquid, nor gas, so solid.
In order to get the ketchup in a bottle to come out easier, you hit the bottom of the bottle while it is inverted (upside down). Which of Newton's laws best describes why this works?
Answer:
His second law. "The acceleration of an object depends on the mass of the object and the amount of force applied."
Explanation:
The harder you hit the faster and more the ketchup comes out
A ray of light in air strikes a glass surface. is there a range of angles for which total internal reflection occurs? explain.
No, there is no range of angles for total internal reflection(TIR).
What is total internal reflection?Total internal reflection (TIR) is an optical phenomenon when waves arriving at the interface (boundary) of two media, such as water and air, are entirely reflected back into the first (internal) medium rather than being refracted into the second (external). It happens when the waves are incident on the interface at a suitably oblique angle and the second medium has a higher wave speed (i.e., lower refractive index) than the first. TIR occurs not only with electromagnetic waves like light and microwaves but also with other types of waves, including sound and water waves. For instance, the water-to-air surface in a typical fish tank, when viewed obliquely from below, reflects the underwater scene like a mirror with no loss of brightness.
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True or false kinetic energy is the energy associated with its position or composistion
Kinetic energy is not the energy associated with its position or composition.
Energy is the crucial for sustenance of every being. The potential energy is present in every object and cannot be given to another object. Explosives contain the chemical potential energy that is released as kinetic energy and heat after ignition.
What is the kinetic energy?Kinetic energy is not energy associated with the position or composition. It is the energy related with the motion.
The total energy of the universe is a constant as energy can be changed from one form to another but cannot be created nor destroyed. Systems changes in order to lower their potential energy. Energy can be changed from one type to the another. Energy is capacity to do work.
Kinetic energy, form of the energy that an object or a particle has by reason of its motion. If the work, which transfers energy, is done on an object by applying net force, the object speeds up and thereby gains kinetic energy. The kinetic energy is a property of a moving object or particle and depends not only on its motion but also on its mass.
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Why are there flat spots on
heating curves of substances like
water?
according to coulomb’s law, which has a greater effect on the force of attraction, increasing the magnitude of thecharge of oppositely charged particles or decreasing the distance between the charges? explain your reasoning
According to Coulomb's law distance between the oppositely charged particles will have a greater effect on the force of attraction between them.
The force of attraction is more affected by distance. The electric force of attraction diminishes by 1/r2 as the distance between the charges grows. For instance, since the repulsive force is inverse, if the distance between the two electrons were to double, it would do so by a factor of 4 rather than 2. (because of the square).
To summarize, according to Coulomb's law, the force of attraction will have the greatest dependence on the distance between the two oppositely charged particles rather than growing with the quantity of charged particles.
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Tides are strongest when the:________
a. sun is setting
b. earth, moon, and sun are in line.
c. body of water is very large.
d. moon and sun are at right angles to the earth.
Tides are strongest when the earth, moon and sun are in line.
What are tidal waves?A tidal wave is a periodically occurring shallow water wave brought on by the ocean's gravitational interactions with the Sun, Moon, and Earth. Despite the fact that tides have nothing to do with tsunamis, the phrase "tidal wave" is frequently used to describe them. A storm surge, storm flood, tidal surge, or storm tide is a tsunami-like occurrence of rising water that frequently occurs along coastlines during low-pressure weather systems like cyclones. It is calculated as the increase in water level over the average tidal level and excludes waves.
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In the absence of air resistance, a ball of mass m is tossed upward to reach a height of 20 m. at the 10 m position, halfway up, the net force on the ball is?
On the ball, there is mg of net force.
How would one describe air resistance?Air exerts a force known as air resistance. The force works in the opposite direction of an object traveling through the air. While a sports vehicle with a streamlined design will encounter reduced air resistance and experience less drag, the automobile will be able to move more quickly than a truck with a flat front.What Causes Air Resistance?Air resistance, also referred to as "drag," is a force brought on by air. When air specks collide with an object's front, it slows down. The more air particles that impact the object and the larger its surface area, the more resistance it faces.
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In a 5.00 km race, a runner runs at a steady 3.0 m/s. what is their time for the race?
The runner that runs in a 5.00 km race at a steady 3.0 m/s takes 27.78 min to finish the race
The formula and procedure we will use to solve this problem is:
v = x/t
Where:
x = distancet = timev = velocityInformation about the problem:
x = 5.00 km v =3.0 m/st = ?By converting the distance units from (km) to (m) we have:
5.00 km * (1000 m / 1 km) = 5000 m
Applying the velocity formula and isolating the time, we get:
v = x/t
t = x/v
t = 5000 m / 3.0 m/s
t = 1666.67 s
By converting the time units from (s) to (min) we have:
1666.67 s * (1 min / 60 s) = 27.78 min
What is velocity?It is a physical quantity that indicates the displacement of a mobile per unit of time, it is expressed in units of distance per time, for example (miles/h, km/h).
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You watch two otters cross a river of width d with water flowing at vw. Otter 1 swims across the river perpendicularly to the shore (but ends up actually swimming diagonally from the reference frame of a person standing on the shore because the river flows in a direction perpendicular to the direction the otter swims). Otter 2 swims in a direction that takes her directly across the river, on a path that is actually perpendicular to the shore as seen from a person standing on the shore. Each otter swims at vo relative to the water and they take the paths described above. How much longer does the Otter 2 take to cross the river? To answer this, derive an expression for the ratio of the time taken by the Otter 2 to cross the river divided by the time taken by the Otter 1 to cross the river. Get the ratio in terms of vo and vw and select the correct answer.
The fur of a sea otter is the densest of any animal, having the most hairs per square inch of any other species. Even while floating in the water, their thick fur keeps the animal warm and dry.
Sea otters decrease heat loss when the water is too cold by floating on their backs with their feet out of the water. To increase their surface area when trying to dissipate heat, sea otters spread their feet out underwater. Sea otters typically spread out or tuck their feet up to maintain body heat. The amount of food available to sea otters would decrease if prey species in their environment declined as a result of changing temperatures.
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A westward-
moving motorcycle increases its speed from 5.0
m/s to 25.0 m/s in 2.5 seconds.
magnitude=
direction=
A westward-moving motorcycle increases its speed from 5.0 m/s to 25.0 m/s in 2.5 seconds. Magnitude= direction=
Calculation
The magnitude comes according to the formula (V-U)/T
Here U (initial velocity) = 5 m/s
V (final velocity) = 25 m/s
Time taken (T) = 2.5 s
So, going according to the formula,
we will have the magnitude = (25 – 5)/ 2.5
So, the magnitude is 20/2.5 = 8
So, the magnitude is 8
And since the speed is increasing, hence the direction would be in the same direction as the body is moving. It means the direction is in westward direction.
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A beam of blue light in air is incident on a glass plate. will the beam transmitted through the glass plate emerge parallel to the incident beam?
If the top and bottom surfaces of the glass plates are parallel to each other, the incident and emergent beam will be parallel to each other no matter the wavelength (colour) of beam.
CASE 1 : The surface in which the beam is incident is parallel to the surface from which the beam is emitted. In this case, the incident and emergent ray are always parallel to each other no matter the wavelength (colour) of beam.CASE 2 : The surface in which the beam is incident is not parallel to the surface from which the beam is emitted. In this case, the incident and emergent ray are not parallel to each other.Refractive index is the lights bending ability when moving from one medium to another. Refractive index varies with colours but not angle of incidence and emergence.
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Most often, a blackbody curve will have its maximum in what region of the electromagnetic spectrum?.
A blackbody curve will have its maximum in the visible region of the electromagnetic spectrum.
The blackbody graph illustrates how the intensity of light that is radiated changes as a blackbody is heated to a specific temperature.
According to the blackbody graph, a blackbody radiates energy over the whole electromagnetic spectrum once it reaches a temperature of 3,000 K. However, at a wavelength of about 1000 nm, the energy is released most strongly. This is a part of the electromagnetic spectrum's infrared range.
A few other essential points about the blackbody graph:
The total amount of energy radiated increases with temperature. No matter the temperature, the graph's red lines all follow the same pattern. The intensity of electromagnetic radiation peaks at a specific wavelength even if it is emitted across the entire spectrum.The wavelength with the highest radiation intensity varies with temperature. The radiation is most intense in the yellow-green region of the spectrum at 4,000 K. Due to the blackbody's tremendous radiation in the visible region of the electromagnetic spectrum, at 6,000 K, it would emit white hot. Keep in mind that white light is the simultaneous emission of all visible colors.Read more about Blackbody Graph:
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A. draw a longitudinal wave and label the following properties: rarefaction, wavelength, and compression. is light or sound a longitudinal wave? (3 points)
The longitudinal wave and its labels have been shown in the following diagram attached.
What is a wave?A wave is an energetic disturbance in a medium that doesn’t include any net particle motion.
Elastic deformation, a change in pressure, an electric or magnetic intensity, an electric potential, or a change in temperature are some of the possible manifestations. Physics studies a wide variety of waves. Some waves can travel through a tangible medium, while others can do so without one.
Wireless electromagnetic
Microwaves.
X-ray.
Radio frequency.
Ultraviolet rays.
Whether you’re discussing waves or vibrations, all of them may be classified according to the following four factors: amplitude, wavelength, frequency, and speed.
What are its types?Electromagnetic and mechanical waves are the two main categories of waves. Water waves, sound waves, and waves on ropes or springs are all examples of mechanical waves. In a medium, mechanical waves can move (such as air, water, glass, or rock). Magnetic waves can move through a material or through a void.
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A thermometer that consistently measures five degrees cooler than the actual temperature is:________
A thermometer that consistently measures five degrees cooler than the actual temperature is reliable but not valid.
What is a thermometer?A thermometer is a device used to measure temperature or a temperature gradient (the degree of hotness or coldness of an object). A thermometer is made up of two essential parts: a temperature sensor that adapts to changes in temperature (such the bulb in a mercury-in-glass thermometer or the pyrometric sensor in an infrared thermometer), and a means to convert this change into a numerical value. In order to monitor processes, thermometers are frequently employed in technology, industry, meteorology, medicine, and scientific study.
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A liquid mixture of water and alcohol has density off 900 kg per metre cubic find the mass of alcohol in one litre of the mixture. .
The mass of alcohol in one litre of the mixture is 371g
Calculation and ExplanationLet us assume the alcohol to be ethyl alcohol (C2H5OH) with the temperature being 20°C.
Given we have assumed this, the density of water and ethyl alcohol becomes,
ρa=789.45g/L
ρw=998.23gL
and then it is given that the density of the solution is ρs=900gL
We know that,
ρ= m/v
⇒ m=ρv
⇒m=ρs Vs = 900g
Then we see that the sum of the mass of ethyl alcohol and water is the same as 900g
But we are interested in finding the values keeping the volume as 1L
hence, Va +Vw =1
⇒ Vw = 1-Va
Then we know that
900g=Va(789.45g/L)+(1−Va)(998.23g/L)
so solving the equation for ethyl alcohol, we have.
Va = 0.4705 L
then to get the mass of ethyl alcohol,
ma= ρaVa
ma= (789.45g/L) (0.4705L)
ma= 371g
Thus, the mass of alcohol (ethyl alcohol) as calculated is 371g.
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A toy car is given an initial velocity of 5.0 m/s east and experiences a constant acceleration of 2.0 m/s2 east. what is the final velocity after 6.0 s?
A toy car is given an initial velocity of 5.0 m/s east and experiences a constant acceleration of 2.0 m/s2 east. As a result, the toy car's final velocity is 17m/s
How do you determine overall velocity?Velocity (v) is a vector quantity that represents displacement (or change in position, s) over time (t) via the equation v = s/t. Speed (or rate, r) is a scalar number that represents the distance travelled (d) divided by the change in time (t) by the equation r = d/t.
When an automobile begins at rest, its initial velocity is zero. When a projectile is launched into space, its initial velocity will be greater than zero. When a car comes to a halt after using the brakes, the starting velocity is greater than zero, but the end velocity is zero.
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After the core of a sun-like star starts to fuse helium on the horizontal branch, the core becomes?
After the core of a sun-like star starts to fuse helium on the horizontal branch, the core becomes hotter.
What is a horizontal branch?This stage of stellar evolution is experienced by intermediate-mass stars, or those with masses between 0.8 and 8 M$, which includes the bulk of the galaxy's stars, including the Sun. These stars spend time on the Red Giant Branch after leaving the Main Sequence, where hydrogen burning in a shell around the central core causes their atmospheres to expand. Helium, a byproduct of the hydrogen shell-burning, is deposited in the core, raising its temperature to the point at which the triple alpha process is triggered. Three helium nuclei, often known as "alpha particles," combine during this process to create carbon-12. If this and another helium nucleus fuse, oxygen-16 is created.
The helium flash, which marks the beginning of this helium fusion in the star core, causes the temperature to rise as the radius falls, maintaining a steady luminosity. Stars in this phase are known as Horizontal Branch stars because they travel to the left, roughly horizontally, over the Hertzsprung-Russell diagram as a result of their constant luminosity and rising temperature.
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Two locomotives approach each other on parallel tracks. each has a speed of 150 km/h with respect to the ground. if they are initially 9.5 km apart, how long will it be before they reach each other?
Two locomotives with a speed of 150 km/h each, reach the other in: 1.9 min
The formula of reach time and procedure we will use to solve this problem is:
Tr = x/(v2+v1)
Where:
Tr = reach timex = separation distancev2 = velocity of the faster mobilev1 = velocity of the slowest mobileInformation about the problem:
x = 9.5 kmv2 = 150 km/hv1 = 150 km/hTr=?Applying the reach time formula we get:
Tr = x/(v2+v1)
Tr = 9.5 km/(150 km/h + 150 km/h)
Tr = 9.5 km/(300 km/h)
Tr = 0.032 h
By converting the time units from (h) to (min) we have:
0.032 h * (60 min / 1h) = 1.9 min
What is velocity?It is a physical quantity that indicates the displacement of a mobile per unit of time, it is expressed in units of distance per time, for example (miles/h, km/h).
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give 5 applications of radiation in physics
Explanation:
1) Nuclear magnetic resonance imaging.
2) X-ray system.
3) Medical application.
4) Positron emission tomography.
5) Imagery techniques
Elemental phosphorus occurs as tetratomic molecules, p4. what mass (kg) of chlorine gas is needed to react completely with 356 g of phosphorous to form phosphorus pentachloride?
The Mass of chlorine gas is [tex]2.60[/tex] × [tex]10^{3}[/tex] [tex]g Cl_{2}[/tex]
Mass of [tex]P_{4}=455 g[/tex]
Phosphorus and Chlorine gas are the reactants.
Phosphorus pentachloride is the product.
[tex]_P_{4}(S)+_Cl_{2}(g) ------- > _PCl_{5}(S)[/tex]
Place 1,10 and 4 as the coefficients of [tex]P_{4} ,Cl_{2} ,[/tex] and [tex]PCl_{5}[/tex]
[tex]_P_{4}(S)+10Cl_{2}(g) ------- > 4PCl_{5}(S)[/tex]
Multiply the calculated number of moles of [tex]Cl_{2}[/tex] by its molar mass. The molar mass of [tex]Cl_{2}[/tex] is 70.90 g/mol.
Mass of [tex]Cl_{2}[/tex] needed = 36.7232 mol [tex]Cl_{2}[/tex] × [tex]\frac{70.90 g Cl2}{1 mol Cl2}[/tex] = [tex]2.60[/tex]×[tex]10^{3}[/tex] [tex]g Cl_{2}[/tex]
What is elemental phosphorus used for?Fertilizers are the principal application for phosphorus, which is used in the form of concentrated phosphoric acid. Additionally, insecticides, detergents, plasticizers, and baking powder all contain phosphorus-based chemicals.
Phosphate is a key component of fertilisers and supports high crop yields. It is essential to the entire agriculture sector and cannot be easily replaced. Phosphate rock mining, however, is occurring at an unsustainable rate. By utilising microorganisms to precipitate the phosphorus, some researchers are attempting to recover phosphorus from wastewaters.
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The density of mercury is 13,580 kg/m3 and the density of water is 1000 kg/m3. the specific gravity of mercury is _____.
A fluid's specific gravity is determined by comparing its density to the density of a standard reference fluid, often water.
13,580,1000 ≈ 13.6
What is the weight density of mercury?Mercury is a highly heavy, dense metal that is silver-white and liquid at normal temperature. Because water has a density of 1.0 g/mL, and mercury has a density of 13.5 g/mL, it feels quite weighty for such a small amount of mercury.
Mercury also has a very high surface tension, which causes tiny mercury droplets to condense on glass to create virtually spherical beads. Liquid mercury can be used in thermometers like the lab thermometer below because it expands and shrinks predictably with temperature. However, due to the element's health risks, the usage of mercury thermometers has generally been discontinued.
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Which component does the nurse analyze to identify patient problems and select appropriate nursing diagnoses? plan of care
Nursing diagnoses are created by analyzing and grouping patient assessment data in order to pinpoint patient issues and choose the best nursing diagnoses.
What do you understand by diagnoses?The practice or process of diagnosing a disease based on its symptoms and characteristics. a: the conclusion drawn from a doctor's diagnostic. b: the investigation or analysis of the nature, cause, or occurrence of a condition, circumstance, problem, or engine problems diagnostic.
Identifying a disease or problem and separating it from other potential disorders is the process of diagnosis. The word's root is the Greek word gnosis, which means knowledge. imaging using magnetic resonance.
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What would happen to the organisms if the ice was more dense?
Answer:
If solid ice were denser than water, it would sink. In the most extreme conditions, there would be no way to melt the ice in deep lakes and oceans, which would thicken from the bottom to the surface, forming permanently frozen bodies of ice and disrupting Earth's water cycle.
Explanation:
This ice layer insulates the water below it, allowing it to stay liquid, which allows the life within it to survive. If ice sank, the liquid water on top would also freeze and sink, until all the liquid water became frozen. Water is less dense as a solid, than as a liquid, which is why ice floats.
a block of metal has a width of 3.2 cm , a length of 17.1 cm , and height of 4.5 cm . its mass is 1.5 kg . calculate the density of the metal.
The density of the metal is 0.006 Kg / [tex]cm^{3}[/tex]
We know that,
ρ = m / V
V = l w h
where,
ρ = Density
m = Mass
V = Volume
l = Length
w = Width
h = Height
Given that,
m = 1.5 kg
l = 17.1 cm
w = 3.2 cm
h = 4.5 cm
V = 17.1 * 3.2 * 4.5
V = 246.24 [tex]cm^{3}[/tex]
ρ = 1.5 / 246.24
ρ = 0.006 Kg / [tex]cm^{3}[/tex]
Density is defined as the amount of matter present in an enclosed boundary. It is represented as ρ.
Therefore, the density of the metal is 0.006 Kg / [tex]cm^{3}[/tex]
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which three workers use technologies that apply the Doppler effect
A. an ultrasound technician
B. a pilot who needs to avoid bad weather
C. an insurance building inspector
D. a race-car mechanic
The three workers that use technologies that apply the Doppler effect are;
an ultrasound techniciana pilot who needs to avoid bad weathera race-car mechanicWhat is the Doppler effect?The term Doppler effect has to do with an increase or decrease in the frequency of sound as the observer moves towards or away from the source of the sound.
We know that;
fo = (v + vo/v + vs) fs
fo = frequency of the observer
v = velocity of sound
vs = velocity of source of sound
vo = velocity of observer
fs = true velocity of sound
The three workers that use technologies that apply the Doppler effect are;
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What led to a change in the model of the atom?
Answer:
Rutherford's experiment
Explanation:
Rutherford's experiment prompted a change in the atomic model. If the positive alpha particles mostly passed through the foil, but some bounced back. AND if they already knew that the electron was small and negative, then the atom must have a small positive nucleus with the electrons around them.
