Answers
The electric potential energy of charge 2q is 2kq/d.
The total electric potential energy of the system is k/d(5q).
What is the contribution of charge 2q?The contribution of charge 2q to the electric potential energy of the system is calculated as follows;
U = kq/r²
where;
k is coulomb's constantq is the magnitude of the charger is the position of the chargeThe electric potential energy of charge 2q is calculated as follows;
U_2q = (k x 2q)/d
where;
d is the position of the chargeSimplify further and we will have;
U_2q = 2kq/d
The total electric potential energy of the system is calculated as;
U_tot = k/d (2q + q - 3q + 5q)
U_tot = k/d(5q)
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Related Questions
A mixture has particles that cannot be seen but do reflect light. It should be classified as a
Answers
Answer:
A mixture has particles that cannot be seen but do reflect light. It should be classified as a colloid. A colloid is a mixture in which one substance is suspended throughout another substance.
Explanation:
What is the weight of a body of mass 12kg?
Answers
HI PLEASE HELP ON QUESTION ASAP I ALREADY KNOW ANSWER =75 IF ANSWER IS CORRECT, ILL RATE YOU FIVE STARS, A THANKS AND MAYBE EVEN BRAINLIEST!
BUT how do i work it out in an exam so exam marker knows what your doing
2)the mean of 6 numbers is 25. If one of the remaining numbers is removed, the average of the remaining numbers is 15. What is the number that was removed?
Answers
The mean of 6 numbers is 25. If one of the remaining numbers is removed, the average of the remaining numbers is 15. The number that was removed is 75.
To solve this problem, we can use the concept of the mean (average) and apply it to the given information. Let's go through the steps to determine the number that was removed.
Step 1: Find the sum of the 6 numbers.
Since the mean of the 6 numbers is 25, we can multiply the mean by the total number of values to find the sum. In this case, 25 * 6 = 150.
Step 2: Find the sum of the remaining numbers.
To find the sum of the remaining numbers, we need to subtract the number that was removed from the original sum. Let's denote the number that was removed as "x". Therefore, the sum of the remaining numbers is 150 - x.
Step 3: Determine the number of remaining numbers.
Since one number was removed, the total number of remaining numbers is 6 - 1 = 5.
Step 4: Calculate the average of the remaining numbers.
We are given that the average of the remaining numbers is 15. To find the sum of the remaining numbers, we can multiply the average by the number of remaining numbers. Therefore, 15 * 5 = 75.
Step 5: Set up the equation and solve for the removed number.
Now we can set up the equation using the information from Steps 2 and 4. We have the equation: 150 - x = 75.
Step 6: Solve the equation.
To find the value of x, we can solve the equation. Subtracting 75 from both sides gives us 150 - 75 = x, which simplifies to x = 75.
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Explain how chemical equation describes a chemical reaction
Answers
According to Bernoulli's Principle what statement below is How does a wing achieve
lift?
A.by forcing air to move faster over the top of the wing thus creating lower pressure below the wing and higher pressure above the wing.
B. by forcing air at the same rate over the top and bottom of the wing to equalize pressure
C. by forcing air to move faster over the top of the wing thus creating higher pressure below the wing and lower pressure above the wing.
D. by forcing air to move slower over the top of the wing thus creating higher pressure below the wing and lower pressure above the wing.
Answers
your answer would be C
by forcing air to move faster over the top of the wing thus creating higher pressure below the wing and lower pressure above the wing
hope this helped you- have a good day bro cya)
reposting this question
jacob is kayaking across the chattooga river at a velocity of 2.5 m/s east. the river current today is 6 m/s south. find is velocity and direction,
Answers
Upon crossing the Chattooga River, the Jacob's last speed was measured at 6.5 m/s, with the direction of travel being to the south-east.
Describe the resulting velocity vector in detail.The overall vector velocity of an object is in fact the sum of its individual vector velocities.The sum of the vector forces exerted on an object are represented by the scalar product of its mass and acceleration vector.We measure two perpendicular velocities due to the kayaker and the river: 2.5 m/s downstream inside a southerly direction and 6 m/s across the river in such an easterly direction.
The Pythagorean Theorem makes the following predictions about the amount of a resultant velocity:
v = √(2.5)² + (6)²
v = √42.25
v = 6.5 m/s
The direction that results will be south-east.
As a result, the Jacob's final speed when it crosses the Chattooga River is determined to be 6.5 m/s, with the direction of travel being south-east.
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What happens to the frequency of the mass spring system if length of the spring is
cut into one third.
Answers
The frequency of the mass spring system would decrease by a factor of 3 if length of the spring is cut into one third.
What is frequency ?Frequency is described as the number of occurrences of a repeating event per unit of time which is also occasionally referred to as temporal frequency for clarity, and is distinct from angular frequency.
The energy equation is shown as E = hν.
where E = energy,
h = Planck's constant (6.626 x 10 -34 J · s),
and v= frequency.
The energy equation shows a direct relationship between frequency and energy because as frequency increases, energy also increases.
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A rightward force of 5.0 N is exerted upon a 4.0-kg object for a distance of 2.0 meters. What is the work done on the object? *
Answers
Given:
The rightward force, F=5.0 N
The mass of the object, m=4.0 kg
The distance for which the force was exerted on the object, d=2.0 m
To find:
The work done on the object.
Explanation:
The work done is the measure of the transfer of energy from a source to an object by the application of the external force.
The work done is given by the product of the force applied and the distance for which the force is applied.
Thus the work done is given by,
\(W=Fd\)On substituting the known values,
\(\begin{gathered} W=5.0\times2.0 \\ =10.0\text{ J} \end{gathered}\)Final answer:
The work done on the object is 10.0 J
Which of the following statements explains the energy budget on earth?
A. Most energy is made into food by plants.
B. Earth's surface absorbs and reemits equal amounts of energy.
C. Earth's surface reflects more energy than the atmosphere.
D. The atmosphere absorbs more energy than earth's surface.
Answers
The following statements which explains the energy budget on earth is Earth's surface absorbs and reemits equal amounts of energy and is denoted as option B.
What is Energy?This is a term which is referred to as the ability to do work and examples include potential energy, solar energy etc.
The energy budget on earth is denoted as the surface absorbing and remitting equal amounts of energy due to energy interconversion occurring such as the conversion of solar energy to chemical energy and so on which is therefore the reason why option B was chosen as the correct choice.
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A metalrod of length 40.0cm at 20°C is heated to a temperature of 45°C. If the new length is 40.05cm, Calculate its Linear expansivity.
Answers
Answer:
The answer is 5×10‐⁵
Step-by-step Explanation:
\( \alpha = \frac{l2 - l1}{l1( \beta 2 - \beta 1)} \)
let ß be ø
\( \alpha = \frac{40.05 - 40}{40(45 - 20)} \)
\( \alpha = \frac{0.05}{40 \times 25} \)
\( \alpha = \frac{0.05}{1000}\)
\( \alpha = \frac{0.05}{1000}\)\( \alpha = 5.0 \times {10}^{ - 5} \)
what is the total time that the bullet is in contact with the board?
Answers
Answer:
an acceleration of the boy as it passes through the board and be the total time the boy is in contact with the board solution
PHYSICS : MODULE 01 GALILEO GARDENS : 01.02 GRAPHING DATA
Graphing Activity
Let’s take another look at the experimental data given to you in the exploratory activity. Graph the data once again, applying the knowledge and skills you have learned.
Procedure:
Table 1 shows some data that Rafael and Cristine collected during an experiment to measure the stretch of a spring as more force was applied.
Graph the data from Table 1 on your graph paper. Do not use a graphing program.
Answers
The experimental value of the expression due to gravity through the experiment will come out to be 8.41u, the error in the value has Accord because of air friction.
What is acceleration due to gravity?Acceleration due to gravity is a form of acceleration that is exercised by the gravitational pull of the earth its value is fixed at the surface n is equal to 9.8u.
What is air friction?Aries composed of molecules and their food when an object passes through air strikes the a molecules they are molecules according to Newton's third law strike back at the object therefore reducing its speed. This force by the molecule is known as air friction.
The setup of the given experiment consists of:
A bob of mass m
A stopwatch with high accuracy
An inch tape
A speedometer
Experiment is conducted in the following manner:
First the bob will be released and from the point that it is being released we will measure the distance using the inch tape we will also calculate the time it takes for the bob to hit the ground.Using the speedometer will measure the final velocity before it is the ground.Now using Newton's first law of motion we can derive the acceleration due to gravity we know the final velocity using the speedometer the distance it has covered and the time it has taken to complete that distance.Using Newton's first law of motion
i.e. v = u + a × t
Where,
u is initial velocity
v is final velocity
a is acceleration due to gravity
t is time taken to cover distance
From the data given v = 16.82m/s
t is 2 seconds
Substituting value in Newton's first law of motion we get
Value of acceleration due to the gravity = 8.41
Therefore, The experimental value of the expression due to gravity through the experiment will come out to be 8.41u, the error in the value has Accord because of air friction.
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Find the momentum of a 15 kg object traveling at 7 m/s
What is the momentum?
What equation did you use to solve?
Answers
Answer:
105 kg*m/s
Explanation:
p=mv
momentum=mass*velocity
momentum=15kg*7m/s
momentum=105kg*m/s
PLEASE HELP AND SHOW WORK,THANK YOU!!
4) Suppose that two identical
mass planets are sitting
million miles apart. At that
distance the planets have a
gravitational force of 1,000,000 N.
If the planets are moved
to two million miles apart, what
is the new gravitational force
between them?
Answers
The new gravitational force between the two planets, when they are moved to two million miles apart, is 250,000 N
The gravitational force between two objects can be calculated using Newton's Law of Universal Gravitation, which states that the force is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.
Given:
Initial distance between the planets = 1 million miles
Initial gravitational force = 1,000,000 N
Final distance between the planets = 2 million miles
To determine the new gravitational force, we need to compare the ratios of the distances and apply the inverse square law.
Let's denote the initial distance as d1, the initial gravitational force as F1, the final distance as d2, and the unknown final gravitational force as F2.
According to the inverse square law, the ratio of the gravitational forces is the square of the ratio of the distances:
(F2/F1) = (d1/d2)²
Substituting the given values:
(F2/1,000,000 N) = (1 million miles / 2 million miles)²
Simplifying:
(F2/1,000,000 N) = (1/2)²
(F2/1,000,000 N) = 1/4
F2 = (1/4) * 1,000,000 N
F2 = 250,000 N
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A potato gun having a 0.560 m long barrel fires a 300 g potato by means of expanding gas. As the gas expands, the force on the potato is Fx = 14,500 N + (9000 N/m)x − (25,000 N/m2)x2, where x is in meters the x axis is along the lenght of the barrel. Determine the work done by the gas on the potato as it travels the length of the barrel.
Answers
The work done by the gas on the potato as it travels the length of the barrel is 6,552 J.
The given parameters;
Length of the potato gun, x = 0.56 mMass of the barrel, m = 300 g = 0.3 kgThe force on the potato, \(F_x = 14,500 \ N + (9000\ N/m)x - (25,000\ N/m^2)x^2\)The force on the potato along the barrel is calculated as follows;
F = (14,500) + (9,000 x 0.56) - (25,000 x 0.56 x 0.56)
F = 11,700 N
The work done by the gas on the potato as it travels the length of the barrel is calculated as follows;
Work-done = force x distance
Work-done = 11,700 x 0.56
Work-done = 6,552 J.
Thus, the work done by the gas on the potato as it travels the length of the barrel is 6,552 J.
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ask a member of the family to help you.Do the following activities and identify the skill/skills being excited . use a separate sheet of paper .
Answers
Answer:
Ok. Thanks.
I'll try it out.
An electron in the n= 6 state of a hydrogen atom makes a transition to the n= 4 state and emits a photon in the process. What is the wavelength, in nm, of the photon emitted?
Answers
According to Bohr's Model of the Hydrogen Atom, the energy of the n-th state is given by the expression:
\(E_n=-13.6eV\left(\frac{1}{n^2}\right)\)If an electron changes from a state n to a state m, the energy of the photon emitted is given by:
\(\Delta E=E_n-E_m=-13.6eV\left(\frac{1}{n}-\frac{1}{m}\right)\)Replace n=6 and m=4 to find the energy of the emitted photon:
\(\Delta E=-13.6eV\left(\frac{1}{6}-\frac{1}{4}\right)=1.1333...eV\)On the other hand, the energy of a photon and its wavelength are related through the equation:
\(E=\frac{hc}{\lambda}\)Then, the wavelength of the photon emitted is:
\(\begin{gathered} \lambda=\frac{hc}{E} \\ \\ =\frac{(6.626\times10^{-34}Js)(2.9979\times10^8\frac{m}{s})}{1.1333...eV} \\ \\ =\frac{(6.626\times10^{-34}Js)(2.9979\times10^8\frac{m}{s})}{1.1333...\cdot1.602\times10^{-19}C\cdot V} \\ \\ =1.094...\times10^{-6}m \\ \\ \approx1094nm \end{gathered}\)Therefore, the wavelength of the photon emitted is approximately 1094 nanometers.
It’s a sunny Saturday afternoon and you are walking around the lake by your house, enjoying the last few days of summer. The sidewalk surrounding the perimeter of the circular lake is crowded with walkers and runners. You then notice a runner approaching you wearing a T-shirt with writing on it. You read the first two lines, but are unable to read the third line before he passes. You wonder, ”Hmmm, if he continues around the lake, I bet I’ll see him again but I should anticipate the time when we’ll pass again.” You look at your watch and it is 5:07pm. You estimate your walking speed at 3 m/s and the runner’s speed to be about 14 m/s. You also estimate that the diameter of the lake is about 2 miles. At what time should you expect to read the last line of the t-shirt?
Answers
The anticipated time when he will appear again is 5:17 pm
The given parameters;
your speed, \(V_a\) = 3 m/s
the runner's speed, \(V_b\) = 14 m/s
the diameter of the lake, d = 2 miles = 3218.69 meters
Let the anticipated time when he will appear again = tThe circumference of the lake is calculated as;
\(C = \pi d\\\\C = 3.142 \times 3218.69 = 10,113.12 \ m\)
Apply concept of relative velocity to determine the time, in which he will appear again.
By the time he appears again;
the distance you moved + distance he moved = circumference of the circle
\(V_at + V_bt = 10, 113.12\\\\(V_a + V_b)t = 10,113.12\\\\(3 + 14) t = 10,113.12\\\\17t = 10,113.12\\\\t = \frac{10,113.12}{17} \\\\t = 594.89 \ s = 9.92 \ \min \ \approx 10 \ \min\)
\(t\ \approx \ \ 5:17 \ pm\)
Thus, the anticipated time when he will appear again is 5:17 pm
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What is the equation for the X axis of this fbd? Remember the sign of convention discussed in the module
Answers
F - f = ma
Explanation:The sum of forces on the x-axis = ma (since it is not stated that the forces are in equilibrium)
\(\sum fx=ma\)By resolving the Free Body
\(F+(-f)=ma\)Simplifying the equation above, we have:
F - f = ma
⚠️Pls help me this is due soon!⚠️
Answers
professional is the answer
3rd
If you are sitting in the back seat of a car that makes a hard left turn, you will feel pushed toward the right side of the car. Why does your body move to the right
Answers
Answer:
Inertia
Explanation:
Your body is naturally resisting turning left, as it wants to continue straight. So if feels like you are going right.
Answer:
Because my body tries to continue in the rectilinear motion it was experiencing before the turn.
Explanation:
The body tries to continue in the rectilinear motion it was having before the hard left turn, in which a centripetal force is experienced. This is in agreement with Newton's first Law of motion:
"An object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force."
Your car gets a flat! You go from 90 kilometers per hour to a stop in 6 seconds. What is your rate of deceleration? (it's negative!) I need this asap help
Answers
Answer:
at a rate of deceleration of -15 kilometers per second
Explanation:
90/6=15
The rate of deceleration when a car goes from 90km/h to 0 in 6 seconds is 4.16m/s².
HOW TO CALCULATE DECELERATION?The rate of deceleration can be calculated by using the following formula:
d = v - u/t
Where;
d = deceleration (m/s²)v = final velocity = 90km/h = 25m/su = initial velocity = 0km/h = 0t = time (s)d = 25 - 0/6
d = 4.16m/s²
Therefore, the rate of deceleration when a car goes from 90km/h to 0 in 6 seconds is 4.16m/s².
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A magnetic field of .05 T is produced.1 meters away from a wire. How much current is flowingthrough the wire?
Answers
Answer:
25000 A
Explanation:
The magnetic field can be calculated using the following equation:
\(B=\frac{\mu_0I}{2\pi d}\)Where μ₀ is equal to 4π x 10^-7, I is the current, and d is the distance. So, replacing the values, we get:
\(0.05=\frac{4\pi\times10^{-7}\cdot I}{2\pi\cdot0.1}\)So, solving for I, we get:
\(\begin{gathered} 0.05=\frac{4\pi\cdot10^{-7}I}{0.2\pi} \\ 0.05=2\times10^{-6}I \\ \frac{0.05}{2\times10^{-6}}=\frac{2\times10^{-6}I}{2\times10^{-6}} \\ 25000=I \end{gathered}\)Therefore, the current is 25000 A.
A bat emits a sound with a frequency of 134 kHz in a cave where the temperature is 28°C. Assume that air behaves like an ideal monatomic gas and use the fact that the speed of sound in air at 20.0°C is 343 m/s to determine the wavelength of the sound emitted by the bat.
Answers
The wavelength of the sound is 2.6 x 10⁻³ m.
What is the wavelength of the sound?The wavelength of the sound or distance travelled by the sound wave is calculated by applying the following formula.
v = fλ
λ = v / f
where;
v is the speed of the sound wave = 343 m/sf is the frequency of the sound wave = 134 kHzλ is the wavelength of the sound wave = ?The wavelength of the sound is calculated as follows;
λ = v / f
λ = ( 343 m/s ) / ( 134,000 Hz )
λ = 2.6 x 10⁻³ m
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Which best describes the potassium ion that forms?
O It is a negative ion that has one less valence electron
than a neutral potassium atom.
O It is a negative ion that has one more valence
electron than a neutral potassium atom.
O It is a positive ion that has one less valence electron
than a neutral potassium atom.
O It is a positive ion that has one more valence electron
than a neutral potassium atom.
thank you
Answers
A potassium ion can be described as it is a positive ion that has one less valence electron than a neutral potassium atom. Therefore, option (C) is correct.
What is an ion?An ion can be described as a chemical specie that exhibits a positive or negative charge. The term ‘ion’ can be used to refer to atoms or molecules with non-zero charges associated with them.
Therefore, all ions possess either greater electrons than protons in their atomic structures or greater protons than electrons. If the protons are greater than electrons hold a net positive charge and are generally referred to as cations.
The electronic configuration of the Potassium is 1s²2s²2p⁶3s²3p⁶4s¹. As the Potassium atom donates one electron in its valence shell it becomes cation K⁺.
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Answer:
C) It is a negative ion that has one more valence electron than a neutral bromine atom.
Explanation:
A bromide is a synthetic composite including a bromide ion or ligand. Potassium bromide (KBr) is a salt, usually selected as an anticonvulsant and a drug in the late 19th and early 20th centuries, with over the stand value increasing to 1975 in the US. Potassium bromide is applied as a veterinary drug, as an antiepileptic medicine for dogs.
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A 25 kg mass is hanging from two cables, each with their own tension. Cable 1 is connected to the
ceiling at a 52° angle below horizontal and cable 2 is connected perpendicular to the right wall.
The entire system is stationary.
a. Draw the FBD
b. Calculate Ty and T2.
Answers
Answer:
a. one line down one line to the right one live to the northwest from the object
b. t1=190 t2=310
Explanation:
The surface tension of the alcohol propanol in air has a value of 23.70 units
and the surface tension of water in air is 72.80 units. Which two statements
are true?
A. Propanol will have a flatter meniscus than water because the
forces between the molecules are smaller.
B. Propanol will have a higher boiling point than water because the
forces between the molecules are greater.
C. Propanol will have a more curved meniscus than water because
the forces between the molecules are greater.
D. Propanol will have a lower boiling point than water because the
forces between the molecules are smaller.
Answers
Answer:
A & D your welcome
Propanol surface is more flattered and has less boiling point than that of water.
To determine the correct statements among all the statements, we need to know about the surface tension.
What is surface tension?Surface tension is defined as force per unit length.More the surface tension, more the force between the molecules to keep the molecules together.What does happen, if molecules have more force of attraction?If the molecules have large force of attraction, more heat will be required to break the bonds between them. So the boiling point increases. Also with more force of attraction, the surface of the liquid becomes less flattered.Since, propanol has less surface tension than that of water, so its surface is more flattered and has less boiling point than that of water.
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In a nuclear power plant, the nuclear reaction is kept from going critical by keeping the rate of reaction safe.
How do the control rods figure into this?
A. The control rods absorb the excess heat produced in the reaction.
B. The control rods absorb excess neutrons, keeping them from causing too many uranium atoms to split too quickly.
C. The control rods absorb excess uranium atoms so that the reaction doesn't happen too quickly.
D. The control rods provide additional neutrons to keep the reaction going.
Answers
Answer:
B. The control rods absorb excess neutrons, keeping them from causing too many uranium atoms to split too quickly
Answer:
The control rods absorb excess neutrons, keeping them from causing too many uranium atoms to split too quickly.
Explanation:
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Nowton's third law refers to 'action reaction forces*. These forces are
always:
Answers
equal in magnitude but opposite in direction
If Newton's 1st Law says, it should never stop, then why has every ball you have ever kicked, thrown or rolled stopped moving?
Answers
Answer:
The ball stops due to friction when it rolls on something such as grass.
Explanation:
Newton's first law is that an object will move at a constant velocity or stay at rest, unless it is acted upon by an external force.
When a ball on Earth is kicked or rolled, it is subject to external forces that oppose it's motion (like the force due to gravity and air resistance, or friction when rolling on the ground) - so the ball will not keep moving and will eventually stop.