Two electrons (-1.6 x 10-1°c) in an atom are separated by 3.4 x 10-11 m. what is the electrostatic force
between them? is it attractive or repulsive?
Answers
The electrostatic force between the electrons is approximately 2.31 x 10⁻²⁸ N, acting in a repulsive manner.
To find the electrostatic force between the two electrons, we will use Coulomb's Law, which states that the electrostatic force (F) between two charged particles is directly proportional to the product of their charges (q1 and q2) and inversely proportional to the square of the distance (r) between them. Mathematically, this is represented as:
F = (k * q1 * q2) / r²
Where k is Coulomb's constant, approximately equal to 8.99 x 10⁹ Nm²/C². In this problem, both electrons have a charge of -1.6 x 10⁻¹⁹ C, and they are separated by a distance of 3.4 x 10⁻¹¹ m. Plugging these values into the equation, we get:
F = (8.99 x 10⁹ Nm²/C² * (-1.6 x 10⁻¹⁹ C) * (-1.6 x 10⁻¹⁹ C)) / (3.4 x 10⁻¹¹ m)²
Calculating the force:
F ≈ 2.31 x 10⁻²⁸ N
Since both electrons have negative charges, the electrostatic force between them is repulsive. This is because like charges repel each other, while opposite charges attract. In this case, the two electrons have the same negative charge, which causes them to repel one another.
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Related Questions
a neutral atom can be negatively charged by
A. Transferring an electron to another atom
B. Transfering a neutron to another atom
C. Receiving a netron from another atom
D. Receiving an electronic from another atom
Answers
Answer:
D: receiving an electronic from another atom
Explanation:
if a netyral atom gains electrons, then it will become negatively charged
Answer:
D. Receiving an electronic from another atom
Explanation:
i got it right on a test
A highway speed limit is posted as 90 km/hr. Is this average speed or instantaneous speed? Explain your answer.
Answers
Explanation: A highway speed limit posted as 90km/hr would be the instantaneous speed because it’s just the speed for that moment.
Joel inflates a balloon and ties it off. He then rubs the balloon against his hair, which makes his
hair stand up. He then places the balloon near the classroom wall and sticks it to the wall. Finally, he
pops the balloon with a pin. Which of these is an example of gaining a charge by friction in this example?
A. Rubbing the balloon against his hair
B. Placing the balloon near the classroom wall
C. Touching the balloon to the classroom wall
D. Popping the balloon with a pin
Answers
Answer: I Believe Its A. :)
A 50 kg student holding a 7 kg backpack rides a 4 kg skateboard down the sidewalk at 3 m/s. What is the total momentum of the student, backpack, and skateboard?
Answers
Answer:
183 MLT^-1Explanation:
Mass = 50kg +7kg +4kg =61 kg
Velocity = 3m/s
Momentum = mass × velocity
\(p =61\times 3\\\\p =183MLT^-^1\)
Answer:
Mass= 61 kg. Success to The homework.
Voltage (joule/coulomb), or potential
A) is a locomotive force
B) is a resistance force or a difference in current
C) is an electromotive force or a difference in potential
Answers
Voltage, also known as potential (measured in joules/coulomb), is an electromotive force or a difference in potential. So, the correct answer is: C) is an electromotive force or a difference in potential
Voltage, also known as electric potential difference or electromotive force, is a measure of the potential energy per unit charge in an electrical circuit. It's measured in volts, which are joules per coulomb (J/C).Voltage is often referred to as electromotive force (EMF) because it represents the force that drives electric current through a circuit. Just as water flows from a higher point to a lower point due to the force of gravity, electric charge flows from a point of higher voltage to a point of lower voltage due to the force of electric fields.
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if you can answer all of these questions, you are a genius.
1. What is matter made of?
2. Define matter.
3. Give 3 examples of things that are made of matter.
4. What is the difference between solid, liquid, and gas?
5. What is a chemical reaction?
6. Explain the difference between the reactants and products.
7. Do you have any plans for Halloween and the break?
Answers
Answer:
1.matter made of mass and volume
2.matter is any substance that has mass and takes up a space by having a volume
3.table, coffee, and perfume
4.solid has a strong bonds, liquid has weak bond, and gas no bond
5
How do I know what kinematic equations to use when solving a question?
Answers
Explanation:
There are 5 kinematic equations, and 5 variables.
Each question will give you 3 variables and ask you to solve for a fourth.
To determine which equation to use, look at which variable is not included in the problem.
For example, if the question does not include time, then you need to use a kinematic equation that does not have t in it. That would be:
v² = v₀² + 2aΔx
Or, if the question does not include the final velocity, then you need a kinematic equation that does not have v in it. That would be:
Δx = v₀ t + ½ at²
Background:
Imagine being in an elevator and riding from the 1st floor to 20th floor. You start from
rest, speed up (maybe for a floor or two) until you get up to cruising speed. Then you
cruise for several floors until you are nearing your destination. As you near your
destination, you slow down from cruising speed to a final stopping position (i.e., a zero
speed). What would you feel during this time and why would you feel it?
Answers
A person feels lighter than his Normal weight when the lift is accelerating downwards.
The price at which an object adjustments its velocity is referred to as acceleration, a vector variable. If an item's velocity is changing, it's miles accelerating. A moving object can every so often adjust its velocity by the same amount every 2nd. a transferring item that adjustments its speed with the aid of 10 m/s per second. since the pace is changing through a set quantity each second,
that is called a regular acceleration. it's miles important to differentiate among an item with a steady acceleration and one with a constant velocity. Be not deceived! An object is accelerating if its speed is changing, whether or not with the aid of a hard and fast amount or a variable quantity. additionally, a transferring item with a regular pace isn't always accelerating.
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If someone has a curve in his or her spine, what other bones might also be affected by the way the curve shifts that person’s weight?
Answers
Answer:
Curve in spine can effect his or her other body parts too in addition to spine. The neck or head can be tilted forward, shoulder could be hunched, hip bone can be uneven, ribs can be effected leading to disorder of lung.
Explanation:
i would appreciate your help
Answers
Answer:
22. C. Pz > Py > Px
23. B. 5.0 × 10⁴Pa
24. B. Upward thrust exerted by the liquid
25. B. The volume of the object immersed in the liquid decreases
26. D. When a body is wholly or partially immersed it experiences upthrust equal to the weight of the fluid displaced
Explanation:
22. The more you go deeper into the sea, the more the pressure of the water increases pushing down on you.
The reason why salt water is very dense is that when the salt dissolves in the water, it adds to the mass of the water, which makes the water more denser.
Due to this, we can assume that the water pressure exerted on the fish will be greater beneath the sea than the lake at the same depth.
Answer: C. Pz > Py > Px
----------------------------------------------------------------------------------------------------------
23.
Given:
Density of water = 1000 kg m⁻³
Atmospheric pressure at sea level, Patm = 1.0 × 10⁵ Pa]
Depth of water in sea = 5m
To find the pressure exerted by the water on the fish, we use the formula: P = hpg
P = pressure
h = height or depth of water
p = density of water
g = gravitational field strength
We are given the depth and density, but not the gravitational field strength
Gravitational Field Strength: Measures how much gravity there is
And since we live on earth, the gravitational field strength is 10 N/kg
Depth, h = 5m
Density, ρ = 1000 kg/m³
Gravitational Field Strength, g = 10 N/kg
Now we substitute these into the formula:
P = hpg
P = (5)(1000)(10)
Multiply 5 and 1000 to get 5000
P = 5000 × 10
Multiply 5000 and 10 to get 50000
P = 50000Pa
↓
P = 5.0 × 10⁴Pa
Answer: B. 5.0 × 10⁴Pa
----------------------------------------------------------------------------------------------------------
24. When a body is fully or partly immersed in a liquid, it undergoes an apparent loss in its weight due to upward thrust exerted by the liquid.
The upward thrust is the same as the weight of the fluid being displaced by an object.
Answer: B. Upward thrust exerted by the liquid
----------------------------------------------------------------------------------------------------------
25.
When you add common salt to water it becomes denser, which can increase the mass and volume of the water. Due to water becoming denser, it can make an object thats less dense float. Also, density and volume are inversely proportional to each other, meaning that when density increases, volume decreases.
Answer: B. The volume of the object immersed in the liquid decreases.
----------------------------------------------------------------------------------------------------------
26.
Achimede's principle states that:
Answer: D. When a body is wholly or partially immersed it experiences upthrust equal to the weight of the fluid displaced.
Density of oil is less than the density of water. *
true
False
Answers
Answer:
false
Explanation:
because oil is thicker than water
Answer:
answer is false
Explanation:
water is more dense than oil so they can't mix . Oil float above the water
While studying for the exam, your friend told you that blue light has more energy than red light. Your friend then concludes then that if an absorption line spectrum of a star has a lot of blue lines this should indicate that the star is very hot. What can you say about your friend’s statement? Elaborate on your reasoning analyzing your friend’s argument, based on what we know from this course.
Answers
While blue light indeed has higher energy than red light, it is not accurate to conclude that a star is very hot solely based on the presence of blue lines in its absorption line spectrum. The temperature of a star is determined by its overall spectrum and the distribution of light across different wavelengths. Analyzing the argument, it is important to consider that the presence of absorption lines in a star's spectrum is related to the elements present and their energy levels, rather than solely indicating the star's temperature.
The statement that blue light has more energy than red light is correct. In the electromagnetic spectrum, blue light corresponds to shorter wavelengths and higher frequencies, which results in higher energy photons compared to red light with longer wavelengths and lower frequencies.
However, the conclusion that a star is very hot based on the presence of blue lines in its absorption line spectrum is not valid. The absorption line spectrum of a star provides information about the elements present in its outer layers. The lines are produced when certain wavelengths of light are absorbed by specific elements in the star's atmosphere. The specific positions and characteristics of these absorption lines can be used to identify the elements and their energy levels.
While the presence of blue lines in the spectrum may indicate the presence of high-energy transitions in the star's atmosphere, it does not necessarily imply a high overall temperature. The temperature of a star is determined by its overall spectrum, which includes light across a wide range of wavelengths. The distribution of light across different wavelengths, as well as the overall shape and intensity of the spectrum, provide a more accurate indication of the star's temperature.
In conclusion, it is important to consider the overall spectrum and the distribution of light across different wavelengths when determining the temperature of a star. Simply observing blue lines in the absorption line spectrum is not sufficient to conclude that the star is very hot, as it is the collective information from the entire spectrum that provides insights into the star's temperature and composition.
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The scatterplot shows the distance (in feet) that a person was from a motion sensor during an experiment in math class. Use the labeled points to create a linear model. About what distance in feet (y) would a person be 8 seconds after the experiment begins? 21 ft 27 ft 30 ft 57 ft.
Answers
A person would be 30 feet (y) 8 seconds (x) after the experiment begins.
The scatterplot shows a linear relationship between the distance (in feet) from the motion sensor and the time (in seconds) since the start of the experiment.
Using the two labeled points (8 seconds, 21 feet) and (15 seconds, 57 feet), we can use the line equation y = mx + b to create a linear model. The slope (m) equals (57 feet - 21 feet)/(15 seconds - 8 seconds) = 36 feet/7 seconds, and the y-intercept (b) equals 21 feet.
Using the linear model, we can estimate that a person would be 30 feet (y) 8 seconds (x) after the experiment begins.
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Why does the law of conservation of energy limits the efficiency of any machine.
Answers
Answer: Because machines cannot create new energy themselves, they merely change its direction, its form, the amount applied, or the distance it is applied over. Therefore, although it may seem like machines make things easier, in reality they just convert one form of energy into another, and cannot multiply energy or work.
Explanation:
Indicate the number of significant figures in each measurement in Problem 2.63. 2.63 What is the uncertainty in each measured number: (a) 12.60 cm (b) 12.6 cm (c) 0.00000003in. (d) 125ft 2.64 Indicate the number of significant figures in each measurement in Problem 2.63
Answers
For Problem 2.64, the number of significant figures in each measurement would be the same as in Problem 2.63: (a) 12.60 cm: 4 significant figures, (b) 12.6 cm: 3 significant figures, (c) 0.00000003 in.: 2 significant figures, (d) 125 ft: 3 significant figures
In Problem 2.63, we need to determine the number of significant figures in each measurement and calculate the uncertainty for each measured number.
(a) 12.60 cm: There are four significant figures in this measurement.
The uncertainty in this measurement is ±0.01 cm, as the last digit is the estimated digit.
(b) 12.6 cm: There are three significant figures in this measurement.
The uncertainty in this measurement is ±0.1 cm, as the last digit is the estimated digit.
(c) 0.00000003 in.: There are two significant figures in this measurement.
The uncertainty in this measurement is ±0.00000001 in., as the last digit is the estimated digit.
(d) 125 ft: There are three significant figures in this measurement.
The uncertainty in this measurement depends on the precision of the instrument used for measurement and is not provided in the problem statement.
For Problem 2.64, the number of significant figures in each measurement would be the same as in Problem 2.63:
(a) 12.60 cm: 4 significant figures
(b) 12.6 cm: 3 significant figures
(c) 0.00000003 in.: 2 significant figures
(d) 125 ft: 3 significant figures
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List the three types of speed
Answers
FAST
MEDium
slow
.....
A ball bouncing eventually coming to a stop A. Open system B. Closed system C. Isolated system
Answers
Given:
A ball bouncing eventually comes to stop.
To find:
What kind of a system is this?
Explanation:
An open system is a system where the free exchange of matter and energy with the surroundings takes place.
A closed system is where only the energy of the system is shared with the surrounding. In these kinds of systems, the exchange of matter does not take place.
An isolated system is where neither matter nor energy is exchanged between the system and the surrounding.
When a ball is bouncing, it gradually loses its kinetic energy to the surroundings and eventually comes to stop. But the mass of the ball remains the same. Thus this is a closed system.
Final answer:
The given system is a closed system.
Therefore the correct answer is option B.
help
What is the electric field at a location b = m, due to a particle with charge +1 nC located at the origin? 0 E = si 28.12355075 >N/C
Answers
The electric field at a location (b = m) due to a particle with a charge of +1 nC located at the origin can be calculated using the equation E = kq/r^2, where E is the electric field, k is the Coulomb's constant (approximately 8.99 × 10^9 N·m^2/C^2), q is the charge of the particle (in this case, +1 nC converted to +1 × 10^(-9) C), and r is the distance between the particle and the location (b = m).
To calculate the electric field, we need to determine the distance (r) between the particle and the location. In this case, the distance is given as b = m.
The Coulomb's constant, k, is a fundamental constant that relates the electric field to the charge and distance. Its value is approximately 8.99 × 10^9 N·m^2/C^2.
The charge of the particle is given as +1 nC, which can be converted to +1 × 10^(-9) C.
Using the equation E = kq/r^2, we can plug in the values of k, q, and r to calculate the electric field, E.
By substituting the values into the equation and performing the necessary calculations, the electric field at the location (b = m) due to the particle with a charge of +1 nC located at the origin is approximately 28.12355075 N/C.
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PLZZZ HELP ME ASAP FOR BRAINLIEST AND 20 POINTS
I am desperate and these are my last points.
:'(
Answers
Answer:
gamma rays
Explanation:
What is the best description of sound waves?
A. A source vibrates up and down, causing air molecules to move up and down perpendicular to the direction the wave is transmitted.
B. A source vibrates back and forth, causing air molecules to move back and forth in the same direction that the wave is transmitted.
C. A source vibrates up and down and back and forth, causing air molecules to move in a circular motion as the wave is transmitted.
D. A source ejects a ring of high-velocity air molecules that travel from the source to a listener.
Answers
Answer:
If im right the answer should be D
How long will a bus take to travel 150 km at an average speed of 40 km h?
Answers
225 mins long will a bus take to travel 150 km at an average speed of 40 km h
Since the average speed is 40km/h it means
40 km can be travelled by it in 1 hour
1 km can be travelled by it in 1/40 hour
So 150km can be travelled by it in 150/40 hours or 225 mins.
By formula time=distance/speed=150/40=3.75hours
Speed = Distance/Time – This tells us how slow or fast an object moves. It describes the distance travelled divided by the time taken to cover the distance. Time = Distance / Speed, as the speed increases the time taken will decrease and vice versa.
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Is the plant based burger the new thing of the future and will it leave or stay popular for a long time
Answers
i think it will stay
Answer:
In my opinion, I think it will be popular for some time and leave in the future...one of the biggest complaints about the plant-based meats are the levels of additives, sodium, fat and calories.
If 30 wave crests pass by you in 10 seconds, what is the wave’s frequency?
Answers
Suppose the gravitational force between two spheres is 30 N. If the magnitude of both masses doubles, and the distance between them tripled. What is the force between the masses?
Answers
If both masses double in size and their separation between them triples. 13..33 N will be the force between the masses.
What is gravitational force?Newton's law of gravity states that each particle having mass in the universe attracts each other particle with a force known as the gravitational force.
Gravitational force is proportional to the product of the masses of the two bodies and inversely proportional to the square of their distance.
Given data:
The gravitational force = 30 N
Mass 1 =m₁
Mass 2=m₂
Distance between charges = R
Condition given:
Mass 1 = 2m₁
Mass 2= 2m₂
Distance between charges = 3R
\(\rm F = \frac{Gm_1m_2}{R^2}\)
Case 2;
\(\rm F'=\frac{G(2m_1)(2m_2)}{(3R)^2} \\\\ F'=\frac{4}{9} \frac{Gm_1m_2}{R^2} \\\\ F'=\frac{4}{9} F \\\\ F'=\frac{4}{9} \times 30 \\\\ F'=13.33 \ N\)
Hence, the forces between the masses will be 13..33 N.
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A period is a row and what is a group that is a column
Answers
Answer:
Periods are horizontal rows (across) the periodic table, while groups are vertical columns (down) the table. Atomic number increases as you move down a group or across a period. Beside above, what do columns mean in the periodic table? The periodic table also has a special name for its vertical columns.
Explanation:
What is the relationship among
gravitational force, mass, and the distance
between two objects, as described by
Newton's law of gravitation?
Answers
A bar magnet is a permanent magnet, While an electromagnetic temperary?
Answers
yes an electromagnetic is temporary
Which combination of units expresses volume?
m?, cm², km?
m, cm, km
Om?cm. km
Answers
Answer:
cm and cm²
Explanation:
volume is three dimensional
cm² is in relation to area and cm is in relation to the length of the object... to find the volume getting a base area times the length gives you volume of the object
(cm²×cm=cm³)... attempted illustration
Answer:
m³, cm³, km³
Explanation:
The student decides to build a model transformer.
The transformer is a step-up transformer which doubles the input voltage.
Describe how they could build this step-up transformer in a science laboratory.
Answers
Answer:
hhh
Explanation:
solve it in a paper please
2 An object is able to move around a circle of radius 10 meters in 19 seconds. What is the frequency of the object's motion?
Answers
The frequency of the object's motion is 1/19 Hz
Given that an object moves around a circle of radius 10 meters in 19 seconds.
We need to find the frequency of the object's motion.
Formula for the frequency of the object's motion
Frequency of the object's motion is defined as the number of cycles completed by an object in one second. It is denoted by "f" and measured in hertz (Hz).
f = 1/Twhere,T is the time taken by the object to complete one cycle.
We have the radius of the circle, not the diameter or circumference of the circle.
Therefore, we need to find the circumference of the circle using the radius of the circle.
Circumference of the circle = 2πr= 2 x π x 10 = 20π
The object completes one full cycle to come back to its original position after it moves around the circle.
So, the time taken by the object to complete one cycle (T) = 19 seconds
Therefore, the frequency of the object's motion,f = 1/T= 1/19 Hz
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