Answer:
* positive repulsion, which makes the electrons move as far away as possible
* Attraction with the core atomizes
he analysis is the foundations of quantum theorizing
Explanation:
Electrons are deposited in an atom following two principles.
* positive repulsion, which makes the electrons move as far away as possible
* Attraction with the core atomizes
The mathematical model used for the analysis is the foundations of quantum theorizing
In hiking, what fitness component is required of you
A bus driver heads south with a steady speed of
v1 = 22.0 m/s
for
t1 = 3.00 min,
then makes a right turn and travels at
v2 = 25.0 m/s
for
t2 = 2.20 min,
and then drives northwest at
v3 = 30.0 m/s
for
t3 = 1.00 min.
For this 6.20-min trip, calculate the following. Assume +x is in the eastward direction.
(a)
total vector displacement (Enter the magnitude in m and the direction in degrees south of west.)
magnitude: m
direction : ° south of west
(b)
average speed (in m/s) : m/s
(c) average velocity (Enter the magnitude in m/s and the direction in degrees south of west.)
magnitude m/s
direction ° south of west
Segment 1: The bus travels south for 3.00 minutes at a speed of 22.0 m/s. The displacement during this segment is:
d1 = v1 * t1 = (22.0 m/s) * (3.00 min * 60 s/min) = 3,960 m south
Segment 2: The bus turns right and travels for 2.20 minutes at a speed of 25.0 m/s. The displacement during this segment is in the eastward direction:
d2 = v2 * t2 = (25.0 m/s) * (2.20 min * 60 s/min) = 3,300 m east
Segment 3: The bus travels northwest for 1.00 minute at a speed of 30.0 m/s. The displacement during this segment is in the direction 45 degrees north of west:
d3 = v3 * t3 = (30.0 m/s) * (1.00 min * 60 s/min) = 1,800 m at 45 degrees north of west
(a) The total displacement is the vector sum of the three segment displacements:
d = d1 + d2 + d3 = 3,960 m south + 3,300 m east + 1,800 m at 45 degrees north of west
To find the magnitude and direction of the total displacement, we can use the Pythagorean theorem and trigonometry:
magnitude: |d| = sqrt((3,960 m)^2 + (3,300 m)^2 + (1,800 m)^2) = 5,518 m
direction: theta = atan(1,800 m / (3,960 m + 3,300 m)) = 23.4 degrees south of west
Therefore, the total vector displacement is 5,518 m magnitude and 23.4 degrees south of west.
(b) The average speed is the total distance traveled divided by the total time:
distance = d1 + d2 + d3 = 3,960 m + 3,300 m + 1,800 m = 9,060 m
time = t1 + t2 + t3 = 3.00 min + 2.20 min + 1.00 min = 6.20 min = 372 s
average speed = distance / time = 9,060 m / 372 s = 24.4 m/s
Therefore, the average speed is 24.4 m/s.
(c) The average velocity is the total displacement divided by the total time:
average velocity magnitude = |d| / time = 5,518 m / 372 s = 14.8 m/s
To find the direction of the average velocity, we need to find the angle between the total displacement vector and the positive x-axis:
theta = atan((d1 + d3 sin 45) / d2) = atan(1.161) = 50.8 degrees south of west
Therefore, the average velocity is 14.8 m/s magnitude and 50.8 degrees south of west.
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a fixed mass of gas occupies 1000cm² at 0 degree celcius if it heated at constant pressure to 100 degree celcius. calculate it new volume
The new volume of the gas, when heated at constant pressure from 0°C to 100°C, is approximately 1372 cm³.
The new volume of the gas can be calculated using the ideal gas law, assuming the gas behaves ideally. The ideal gas law equation is given by PV = nRT, where P is the pressure, V is the volume, n is the number of moles of gas, R is the gas constant, and T is the temperature in Kelvin.
In this case, the problem states that the pressure is constant. Therefore, we can rearrange the ideal gas law equation to solve for the new volume:
V1/T1 = V2/T2
Where V1 and T1 are the initial volume and temperature, and V2 and T2 are the final volume and temperature, respectively.
Given that the initial volume (V1) is 1000 cm² and the initial temperature (T1) is 0 degrees Celsius, we can convert these values to Kelvin:
V1 = 1000 cm² = 1000 cm³ (since 1 cm³ = 1 mL)
T1 = 0°C + 273.15 = 273.15 K
The problem states that the gas is heated to 100 degrees Celsius, so the final temperature (T2) is:
T2 = 100°C + 273.15 = 373.15 K
Now, we can solve for V2:
V2 = (V1 * T2) / T1 = (1000 cm³ * 373.15 K) / 273.15 K ≈ 1372 cm³
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A boy slides a book across the floor, using a force of 5 N over a distance of 2
m. What is the kinetic energy of the book after he slides it? Assume there is
no friction.
A. 5 J
B. 10 J
C. 20 J
D. 2.5 J
SUBMIT
The kinetic energy of the book after it is slids a distance of 2 meters will be 10 Joules.
How to determine the kinetic energy of an object?The work-energy theorem states that "the work done on an object is the change in its kinetic energy".
Hence;
Kinetic energy = work done
Note that: work-done is expressed as:
Work done = f × d
Where f is force applied and d is distance traveled.
Given that:
Force applied f = 5 newton
Distance d = 2 meters
Work done = ?
Plug these values into the above formula and solve for the workdone.
Work done = f × d
Work done = 5N × 2m
Work done = 10Nm
Work done = 10 Joules
Therefore, the kinetic energy is 10 Joules.
Option B) 10 J is the correct answer.
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how many rings does saturn have
Answer:
From far away, Saturn looks like it has seven large rings. Each large ring is named for a letter of the alphabet. The rings were named in the order they were discovered.
which quantity is a vector quantity?
A team at a university in Pennsylvania has concerns about the health of streams in a watershed because of the various land uses in the area. There has been an increase in road repair work, and the area has many dairy farms. Which of the following would be most effective at preventing sediment runoff into the streams of the watershed? *
a) Have construction crews steepen the slopes of the valleys of streams near roadwork zones.
b) Maintain zones of grass at least wide on the sides of streams in the area.
c) Construct at least one dam on a stream in the watershed to improve flood control.
d) Shift from dairy farming to corn planted in agricultural fields located within of streams.
The ecological methods allows to find the correct answer to the question of how to prevent river pollution is:
b) Maintain zones of grass at least wide on the sides of streams in the area.
Stream pollution from human activities can occur in a number of ways:
The rubble boat in the river. The dragging of products from the bargains, fertilizers by the rains. Dragging of land by rain and machinery.
Let's analyze the different claims.
a) False. It is too expensive and the slopes cannot be changed due to possible flooding problems.
b) True. Maintaining a protective zone with grass on the sides of the rivers, prevents the waste of the frarmer from reaching the river, and the problems of the debris reaching the river bank. This un ecological methods.
c) False. The dam controls flooding but does not eliminate the problems of river pollution.
d) False. Many lands are not acts for agriculture, but for livestock.
In conclusion we can find the correct answer to the question of how to prevent river pollution is:
b) Maintain zones of grass at least wide on the sides of streams in the area.
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Chromosomes are a form of blood cells.
True
False
............................
(hi if u want brainlist's answer this question then ask another random question on your page so u can give me brainlist back, also i need to people to answer so i can chose one of you guys to give the brainlist's to, deal or no?)
Answer:
false im just trying to get it if you'd like to give it to me
The answer is false :)
describe the motion of the ball between t = 0s and t = 1.275s.
For the beam and loading shown below (a), (b), and (c),
(a) draw the shear and bending-moment diagrams,
(b) determine the maximum absolute values of the shear and bending moment.
(a)
the frequency of a pendulum has a period of 1.13 seconds is?
A) 0.88
B) 1.13
C) 1.27
D) 11.3
Answer:
A 0.88
Explanation:
frequency=1/period
=1/1.13=0.88
How far from the surface of Earth is the magnitude of Earth's gravitational field equal to 7.86 N/kg?
The mass of Earth is 5.97 x 1024 kg and the mean radius of Earth is 6.37 x 106 m.
Answer:
7.48 x 10⁵ m
Explanation:
g = 7.86 N/kg
M = 5.97 x 10²⁴ kg, R = 6.37 x 10⁶ m.
Find height h
g = GM/(R + h)²
(R + h)² = GM/g = 6.67 x 10⁺¹¹ x 5.97 x 10²⁴ /7.86 = 5.066 x 10¹³
R + h = 7.12 x 10⁶ m
so
h = 7.12 x 10⁶ - 6.37 x 10⁶ = 7.48 x 10⁵ m
Which of the following is not among the uses of dimensional analysis? (a) determination of the Numerical constant (b) to convert one system of unit to another (c) to change the units of derived quantities (d) to test the correctness of an equation
To convert one system of unit to another of derived quantities is not a use of dimensional analysis.
What is dimensional analysis?Checking for consistency in the dimensions on both sides of an equation entails looking at the dimensions of the physical quantities involved in a problem, such as length, mass, time, electric charge, and temperature.
The core tenet of dimensional analysis is that physical quantities, such as length, mass, and time, may be described in terms of their basic dimensions.
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All of the options listed are included in the uses of dimensional analysis.
What is dimensional analysis?Dimensional analysis is a powerful tool used in physics to:
check the correctness of equations derive new equationsconvert units from one system to anotherdetermine numerical constants that relate physical quantities.The dimensional analysis involves analyzing the dimensions of physical quantities and using them to establish relationships between them.
By using the principles of dimensional analysis, we can simplify complex physical problems and gain insights into the behavior of physical systems.
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Calculate the net force on pa cle 91.
First, find the direction of the force particle q2 is
exerting on particle q₁. Is it pushing to the right (+),
or to the left (-)?
+13.0 μC
+91
K 0.25 m
Enter + or -.
+7.70 μC
+92
*
0.30 m
–5,90 μC
93
Explanation:
To determine the direction of the force particle q2 is exerting on particle q₁, we can use Coulomb's Law, which states that like charges repel each other and opposite charges attract each other.
Given that q₁ is +13.0 μC and q₂ is +7.70 μC, both particles have the same positive charge. Therefore, they will exert a repulsive force on each other.
Since the charges are positive and repel each other, the force exerted by particle q₂ on particle q₁ will be directed away from q₂. In other words, the force will be pushing particle q₁ to the right (+).
Hence, the direction of the force exerted by particle q₂ on particle q₁ is to the right (+).
write the equation to show how force and acceleration are related
F = ma, or force is equal to mass times acceleration, is the equation used in Newton's second law of motion to demonstrate the relationship between force and acceleration.
What is force and acceleration?A force pushes or pulls an object. The total of all forces acting on an object is known as the net force. An object will change speed in the direction of the net force when there is one applied to it. The object's acceleration reveals how much it accelerates or decelerates.
Newton's second law of motion explains the connection between force and acceleration. They are of the same size. The acceleration of an object rises by the same amount as the force being applied to it. Force is simply defined as mass times acceleration.
What is the acceleration force formula and Can you have acceleration without a force?Mass (kg) times acceleration (m/s2) equals force (N). Therefore, an object with constant mass will accelerate in direct proportion to the applied force.
There won't be any acceleration if there are no external forces operating on the object. The object will move at a constant speed if there is no acceleration. We may examine Newton's second law and the acceleration formula mathematically.
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A half-ring (semicircle) of uniformly distributed charge Q has radius R. What is the electric potential at its center
The electric potential at the center of the half-ring is \(\frac{kQ}{R}\).
Electric force experienced by the chargeThe force experienced by the charge is calculated by Coulomb's law;
\(F = \frac{kQ^2}{R^2}\)
Electric field strengthThe electric field strength is force per unit charge;
\(E = \frac{F}{Q} = \frac{kQ}{R^2}\)
What is electric potential?The electric potential is work done in moving a charge from infinity to a certain point.
V = Ed
\(V = \frac{kQ}{R^2} \times R\\\\V = \frac{kQ}{R}\)
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A t-shirt is launched at an angle of 63.6° at 25.8 m/s. The shirt is launched at a person in the stands a horizontal distance of 30.6 m away and 27.7 m above the ground. How many meters will the t-shirt be short of reaching the person?
calculate the power of a 100kg man who jumps of a building 10m high in 10 seconds given that acceleration due to gravity is 10 ms–²
A 100kg man jumping off a 10m high building in 10 seconds has a power of 1000 Watts.
When the man jumps off the building, he initially possesses potential energy due to his position above the ground. As he falls, this potential energy is converted into kinetic energy, which is the energy of motion. The work done by the man is equal to the change in potential energy.
The potential energy (PE) can be calculated using the formula PE = mgh, where m represents the mass, g represents the acceleration due to gravity, and h represents the height. In this case, the mass is given as 100kg, the acceleration due to gravity is 10 m/s², and the height is 10m.
Substituting these values into the formula, we get PE = 100kg * 10m/s² * 10m = 10,000 Joules. This means that the work done by the man while jumping off the building is 10,000 Joules.
Power is defined as the rate at which work is done. In this scenario, we divide the work (10,000 Joules) by the time taken (10 seconds) to obtain the power. Therefore, Power = Work/Time = 10,000 J / 10 s = 1000 Watts.
Hence, the power of the 100kg man who jumps off the 10m high building in 10 seconds is calculated to be 1000 Watts. Power represents the rate at which energy is transferred or work is done, indicating how quickly the man transformed potential energy into kinetic energy during the jump.
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A 4 newton lamp
is lifted 2 meters.
How much work
was done?
Answer:
The answer is 8 JExplanation:
The work done by an object can be found by using the formula
workdone = force × distanceFrom the question we have
workdone = 4 × 2
We have the final answer as
8 JHope this helps you
Twelve identical point charges q are equally spaced around the circumference of a circle of radius R The circle is centered at the origin. One of the twelve charges, which happens to be on the positive x axis, is now moved to the center of the circle.
Determine the magnitude of the total electric force exerted on this charge.
Answer: the magnitude of the total electric force exerted on the moved charge is proportional to the square of the charge q and inversely proportional to the square of the radius R.
Explanation:
The total electric force exerted on a charge moved to the center of a circle with 12 equally spaced charges can be found by calculating the electric field at the center due to the remaining 11 charges and multiplying by the charge of the moved particle. Coulomb's law gives the electric field at the center due to a single charge located at a distance R from the center as
E = kq/R^2
The total electric field due to the 11 other charges is
E_total = 11E
Thus, the force on the moved charge is
F = qE_total = 11kq^2/R^2.
Therefore, the force is proportional to the square of the charge q and inversely proportional to the square of the radius R.
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Rock X is released from rest at the top of a cliff is on earth. A short time later, Rock y is released from rest from the same point as rock X. Both rocks fall for several seconds before landing on the ground directly below the cliff. Frictional forces are considered to be negligible.
Which of the following graph correctly shows the vertical velocity of rock X as a function of time? Take the positive direction to the upward.
The graph of the velocity and the time can be shown by option D.
What is the correct graph?We know that the movement of an object as it is falling under gravity would have a constant acceleration. The constant acceleration means that the velocity of the object is also held a constant.
We now have to look at the graphs as we have them here. The graph as it has been shown has the the velocity on the vertical axis and it has the time on the horizontal axis. The gradient of the slope is what we would refers to as the acceleration of the body.
We also need to recall that the acceleration has to be a constant since tje tow object would have to reach the ground at the same time if they are released from the same height at the same time.
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Nitroball is similar to volleyball with no more than 3 touches per side?
Group of answer choices
True
False
Answer:
True!
Explanation:
Corn plants and milkweed plants grow in the same area. Over several years, the milkweed plants have taken over the field and the corn plants no longer have space to grow.
This best demonstrates which type of an interaction between the plants?
cooperation
parasitism
commensalism
competition
The interaction between the Corn plants and milkweed plants demonstrates as competition.
What is competition in Plants community?Competition is typically considered to refer to the detrimental consequences that neighbors' presence has on a plant's fitness or growth, typically through lowering the resources available.
In addition to resources, disturbance, herbivory, and mutualisms, competition can be a significant factor in controlling plant populations. The resource involved is depending on the species and the region, as all plants require a few fundamental ingredients.
As corn plants and milkweed plants grow in the same area, the interaction between the Corn plants and milkweed plants demonstrates competition.
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1. What is magnetism?
2. What is electromagnetism?
Answer:
Magnetism is the force or ability of a magnet to attract or repel other magnetic substance encircled in its magnetic field or magnetic circumzone.Electromagnetism is the process of inducing E.M.F (ElectroMotive Force) in a material due to change in magnetic flux caused due to change in current across a magnet.\(.\)
Answer:
Answer of Magnetism
;- the ability to attract and charm people
OR
Magnetism is the force exerted by magnets when they attract or repel each other. Magnetism is caused by the motion of electric charges. Every substance is made up of tiny units called atoms. ... Their movement generates an electric current and causes each electron to act like a microscopic magnet
Answer of electromegnetism
Electromagnetism is defined as an attraction between particles which is defined as created by electricity. An example of electromagnetism is the force which is the basic operation of an electric motor. ... The branch of physics that deals with the interaction of electric and magnetic fields.
Explanation:
When the dried-up seed pod of a scotch broom plant bursts open, it shoots out a seed with an initial velocity of 2.65 m/s
at an angle of 30.0 ∘ below the horizontal. The seed pod is 0.460 m
above the ground.
How long does it take for the seed to land?
t= ? sec
What horizontal distance does it cover during its flight?
x=? M
Answer:
To solve this problem, you'll need to break the initial velocity of the seed into its horizontal and vertical components, then use the equations of motion to find the time of flight and horizontal distance.
The initial velocity (v) of the seed is 2.65 m/s. The angle it's launched at (θ) is 30.0 degrees below the horizontal. The height (h) it's launched from is 0.460 m.
First, calculate the horizontal (v_x) and vertical (v_y) components of the velocity. Because the seed is launched downward, the vertical component will be negative:
v_x = v * cos(θ) = 2.65 m/s * cos(30.0) = 2.29 m/s
v_y = v * sin(θ) = -2.65 m/s * sin(30.0) = -1.325 m/s
Next, use the equation of motion to find the time it takes for the seed to hit the ground:
h = v_y * t + 0.5 * g * t^2
Where g is the acceleration due to gravity, which is approximately 9.8 m/s². Solving the equation for t gives:
t = (-v_y - sqrt((v_y)^2 - 4 * 0.5 * g * (-h))) / (2 * 0.5 * g)
Plugging in the values:
t = (1.325 + sqrt((-1.325)^2 - 4 * 0.5 * 9.8 * (-0.460))) / (2 * 0.5 * 9.8)
t = 0.182 seconds
Finally, use the horizontal velocity and time of flight to find the horizontal distance the seed covers:
x = v_x * t = 2.29 m/s * 0.182 s = 0.417 m
So, the seed lands after approximately 0.182 seconds and travels approximately 0.417 meters horizontally.
If 100. g of gold-198 decays to 6.25g in 25.3 days, what is the half-life of gold-198?
Given
\(\begin{gathered} N_0=100\text{ g} \\ t=25.3\text{ days} \\ N(t)=6.25\text{ g} \end{gathered}\)According to law of radioactive decay,
\(N(t)=N_0e^{-\lambda t}\)Rearranging equation in order to get rate constant,
\(\lambda=\frac{1}{t}\ln (\frac{N_0}{N(t)})\)Substituting all known values,
\(\begin{gathered} \lambda=\frac{1}{25.3\text{ days}}\ln (\frac{100\text{ g}}{6.25\text{ g}}) \\ =\frac{1}{25.3\text{ days}}\ln (16) \\ =0.109day^{-1} \end{gathered}\)The relation between the rate constant and the half life is given as,
\(\begin{gathered} \text{half life=}\frac{0.693}{\lambda} \\ =\frac{0.693}{0.109day^{-1}} \\ =6.357\text{ days} \end{gathered}\)Therefore, half life of the Gold -198 is about 6.375 days.
Solve the problems. Show all work, be SI units for force for weight) .
1. Find the weight of a 2.5 kg bowling ball.
Answer:
1. 75 N
2. 6.8351 N
3. 700 N
Explanation:
1. Determination of the weight of the bowling ball:
Mass (m) = 7.5 kg
Acceleration due to gravity (g) = 10 m/s²
Weight (W) =?
Weight = mass × acceleration due to gravity
W = m × g
W = 7.5 × 10
W = 75 N
2. Determination of the weight of the object.
Mass (m) = 683.51 g
Weight (W) =?
We'll begin by converting 683.51 g to kg. This can be obtained as follow:
1000 g = 1 Kg
Therefore,
683.51 g = 683.51 g × 1 Kg / 1000 g
683.51 g = 0.68351 Kg
Thus, 683.51 g is equivalent to 0.68351 Kg.
Finally, we shall determine the weight of the object as follow:
Mass (m) = 0.68351 Kg
Acceleration due to gravity (g) = 10 m/s²
Weight (W) =?
Weight = mass × acceleration due to gravity
W = m × g
W = 0.68351 × 10
W = 6.8351 N
3. Determination of the weight of the KHS student.
Mass (m) = 154 lb
Weight (W) =?
We'll begin by converting 154 lb to Kg. This can be obtained as follow:
2.2 lb = 1 Kg
Therefore,
154 lb = 154 lb × 1 Kg / 2.2 lb
154 lb = 70 kg
Thus, 154 lb is equivalent to 70 kg.
Finally, we shall determine the weight of the KHS student as follow:
Mass (m) = 70 Kg
Acceleration due to gravity (g) = 10 m/s²
Weight (W) =?
Weight = mass × acceleration due to gravity
W = m × g
W = 70 × 10
W = 700 N
1. Which combination of graphs best describes free-fall motion? [Neglect air resistance.]
A) B and D
B) A and D
C) B and C
D) A and C
D. The graph that indicates increase in velocity is A and the graph that indicates constant acceleration is C.
What is free fall of motion?Free fall is any motion of a body where gravity is the only force acting upon it.
During the free fall of an object, the only prevailing force on the object is acceleration due to gravity.
As an object undergoes free fall motion, the velocity of the object increases downward with time while the acceleration of the object remains constant, pointing downwards as well.
From the given distance-time graph, the correct will be the one that depicts increase in velocity with time.
v = d/t
where;
v is the speed of the objectd is the distance travelledt is the time of motionThe graph that indicates increase in velocity is A and the graph that indicates constant acceleration is C.
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During a constant pressure compression, the temperature of an ideal gas must always decrease, and the gas must always exhaust the thermal energy.True or False?
The given statement 'during a constant pressure compression, the temperature of an ideal gas must always decrease and the gas must always exhaust the thermal energy' is True. According to Gay Lussac's law, the ratio of volume to the temperature remains constant always. When gas is compressed the volume decreases which results in the decrease of temperature to keep the ratio constant.
The results in a science text
describe details involved in completing the experiment.
share the data found after an experiment is concluded.
give the background and purpose of an experiment.
interpret the results of a completed experiment.
Answer:
The answer is B since no one answered it :)
Explanation:
Answer:
b
Explanation:
i took the test
a man is trying to move his washing machine into the back of a removal van. the washing machine has a weight of 650N and the floor of the removal van is 0.80 metres above the ground. calculate the efficiency of the ramp
Answer:650 * 0.8
Explanation:520