In a particular region of space, the electric potential is given by V(x)=NUMBER 1 -NUMBER 2. What is the x component of the force on a charge (q) located at (x)?
Answers
To determine the x component of the force on a charge (q) located at (x), we need to take the derivative of the electric potential with respect to x. This gives us the electric field, E(x) = -dV/dx.
Once we have the electric field, we can use the equation F = qE to find the force on the charge. The x component of the force is then given by Fx = qEx.
So, to summarize:
- Electric potential: V(x) = NUMBER 1 - NUMBER 2
- Electric field: E(x) = -dV/dx
- Force: F = qE
- X component of force: Fx = qEx
Therefore, to find the x component of the force on the charge (q) located at (x), we need to first find the electric field by taking the derivative of the electric potential with respect to x.
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Related Questions
What part of a motor causes its electromagnet to turn in the same direction
consistently, transforming electrical energy into mechanical energy?
A. Commutator
B. Loop of wire
C. Permanent magnets
D. Battery
PLS HELP
Answers
Answer:
A. Commutator
Explanation:
Commutator is part of a motor causes its electromagnet to turn in the same direction consistently, transforming electrical energy into mechanical energy.
What is energy?Energy is the ability or capability to do tasks, such as the ability to move an item (of a certain mass) by exerting force. Energy can exist in many different forms, including electrical, mechanical, chemical, thermal, or nuclear, and it can change its form.
A commutator is a rotary electrical switch in certain types of electric motors and electrical generators.
Commutator is part of a motor causes its electromagnet to turn in the same direction consistently, transforming electrical energy into mechanical energy.
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is KBr a covalent or ionic compound
Answers
Answer:
Ionic Compound
Explanation:
To identify the type of chemical bond in a molecule, look at the atoms that make up the compound. If there are two nonmetals, it is a covalent bond. If the two atoms are metals, it is a metallic bond. If one atom is a metal and the other is a nonmetal, it is an ionic bond. Ionic compounds are also known as salts. You can identify KBr as an ionic compound because potassium is a metal and a salt.
Hope this helps
Ionic Compound
KBr ( Pottasium Bromide ) .
Ionic compounds are also known as salts.
KBr as an ionic compound because Pottasium is a metal and Bromine is a non metal . KBr is an ionic compound due to the type of bonding that occurs between the two elements - an electrostatic attraction between the two ions.state an experimental observation in a photoelectric experiment that is not satisfactoryily explained by a wave model of light
Answers
The photoelectric experiment provides crucial evidence that light has both particle and wave-like properties. One of the key observations made in this experiment is that the photoelectric effect is not satisfactorily explained by a wave model of light.
The photoelectric effect occurs when electrons are emitted from a metal surface when it is exposed to light. According to the wave model, the energy of the emitted electrons should depend on the intensity of the light. However, experiments have shown that the energy of the emitted electrons depends on the frequency of the light, not its intensity.
This observation cannot be explained by the wave model, but it can be easily explained by the particle model of light, where light is considered as a stream of particles (photons) that carry energy. This observation was one of the key pieces of evidence that led to the development of the quantum theory, which explains the behavior of light and matter at the atomic and subatomic levels.
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Objects fall near the surface of the earth with a constant downward acceleration of 10 m/s2 . At a certain instant an object is moving upward at 20 m/s. What is its velocity 2 sec later?
Answers
Answer:
After 2 seconds the velocity of the object is 0 m/s.
Explanation:
The velocity at 2 seconds later can be calculated as follows:
\( V_{f} = V_{0} - gt \)
Where:
\(V_{f}\): is the velocity at 2 seconds
\(V_{0}\): is the initial velocity = 20 m/s
g: is the gravity = 10 m/s²
t: is the time = 2 s
Hence, the final velocity is:
\( V_{f} = V_{0} - gt = 20 m/s - 10 m/s^{2}*2 s = 0 m/s \)
This value (0 m/s) means that the object has reached the maximum height.
Therefore, after 2 seconds the velocity of the object is 0 m/s.
I hope it helps you!
Need help quick!!!!
When trying make an object accelerate, what kind of Net force is required?
A. Balanced Force
B. Unbalanced Force
C. Force of Friction
D. Normal Force
Answers
a sim,ple elctrical ciurucuiot contains a battery a light bulb and a properly copnnected ammeter the ammeter has a very low internal resistance because it is connected in
Answers
In a simple electrical circuit, if it contains a battery, a light bulb, and a properly connected ammeter, the ammeter has a very low internal resistance because it is connected in series with the circuit.
An electrical circuit is made up of a combination of resistors, voltage sources, and current sources that are interconnected in a closed loop. It is used to generate an electric current in a complete circuit and can be as straightforward as a battery connected to a bulb or as complicated as a full-scale electronic circuit.
Ammeters are measuring devices that are used to measure current in a circuit. The ammeter should be connected in series with the circuit to allow current to flow through it. An ammeter with a very low internal resistance should be used since any extra resistance in the ammeter can change the current being measured.
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Perform the following addition and subtraction, and express the result in scientific notation:
Answers
Answer:
.
Explanation:
Define Work in your own words.
Answers
Answer:
something that relates to a person's job. ... Work is an occupation or something that someone does or has done. An example of work is a job as an accountant. An example of work is someone having plumbing done at their house.
Explanation:
What conclusions can you make if a hockey goalie fails to block pucks shot in the upper right hand corner of the net
Answers
Given what we know, we can confirm that this result from the goalie is a clear indicator of room for improvement in the reaction speed and visual coordination for this area of the net.
How can the goalie improve reaction speeds to this area?The key for situations like this is simply repetition. The more the goalie is able to practice with shots in this area of the net, the more muscle memory they will build regarding reacting to these shots, and therefore less time will be needed to block them in the future.
Therefore, we can confirm that this result from the goalie is a clear indicator of room for improvement in the reaction speed and visual coordination for this area of the net.
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3. A difference between copper and plastic is that copper has a much higher
a
brittleness.
b
solubility.
c
reflectivity.
d
electrical conductivity.
Answers
Answer:
d ............................
a pencil partially submerged in a glass of water appears broken or offset because of
Answers
When a pencil is partially submerged in a glass of water, it appears broken or offset due to the refraction of light. Refraction occurs when light passes through a medium with a different density than the one it was previously in, such as air and water. This causes the light to bend and change direction, resulting in the pencil appearing differently than it actually is.
The light that enters the water from the submerged portion of the pencil is refracted towards the normal (the imaginary line perpendicular to the surface of the water), while the light that enters the air from the exposed portion of the pencil is refracted away from the normal. This causes the image of the pencil to appear broken or offset at the water-air interface.
The degree of the bend depends on the angle of incidence and the refractive index of the medium. Hence, the amount of refraction varies with the thickness of the water column, making the pencil look even more broken or offset when viewed from different angles.
In conclusion, the illusion of a broken or offset pencil in water is caused by the refraction of light at the interface between water and air.
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For a rotating object experiencing no net external torque, what happens to the rate of rotation if the moment of inertia of the object decreases by a factor of 2
Answers
Answer:
The rate of rotation increases by a factor of 2.
Explanation:
The rate of rotation will become two times as the moment of inertia will be decreased by 2 times for the constant torque.
What will be the rate of rotation?The torque for the rotating body will be given by the formula
\(T= I\alpha\)
Here,
T= Torque
I= Moment of inertia
\(\alpha=\) Angular acceleration / Rate of rotation
Now from the question, it is given that a rotating object experiencing no net external torque, what happens to the rate of rotation if the moment of inertia of the object decreases by 2 times.
Here moment of inertia will be \(I'=\dfrac{I}{2}\)
So the formula will become
\(T= \dfrac{I}{2} \times \alpha\)
Now for making the Torque to be constant the acceleration should be two times \(\alpha'=2\alpha\)
So for constant torque
\(T= \dfrac{I}{2} \times 2\alpha\)
Thus The rate of rotation will become two times as the moment of inertia will be decreased by 2 times for the constant torque.
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Help please!
Show the molecular formula and electron structure of the simplest compound that forms with only carbon and hydrogen atoms.
Answers
Answer:
Explanation:
Simplest hydrocarbon (something made of carbon and hydrogen only) is Methane \(CH_{4}\)
How can an electric current produce a magnetic field
Answers
Answer:
When the compass is placed below the wire, and the electric current switched on, the needle deflects in the opposite direction. If an electric current is passed through a long coil of wire (a solenoid ) a magnetic field is produced which is the same shape as that of a bar magnet.
Explanation:
Answer:
a changing electric field creates a magnetic field.
Explanation:
if you have a circuit and you send AC current through (AC = Alternating current) so that the electrons move back and forth, they will create a changing electric field.
This produces a magnetic field (because that's what the universe does).
i will give u brainliest!
Answers
Answer:
True
Explanation:
idk
Which of the following is the best way to express the dimensions of a laboratory bench (large desk)? *
1.04 m * 400 cm
1.04 m * 4.00 m
104 cm * 4.00 m
1040 mm * 4000 mm
Answers
To determine the large dimension, always big dimension should be preferred. Hence, option B is correct.
What is a dimension?An area, region, or space's length or width in one direction is referred to as a dimension in mathematics. It merely involves taking an object's length, width, and height into account.
Dimension can be expressed in any one of them, such as Length, Breadth, Width, Height, or Depth.
According to the question, the best possible way to express the dimension in 1.04 m* 4.00 m is because both the dimensions are in the same unit, so it will be easy to calculate the dimension and another thing is that all other dimensions in the option are very small, so it will take more time to measure from them because the desk is large.
Hence, measuring with 1.04 m * 4.00 m will be the more convenient and the best way as well.
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A voltage vL(t)=10cos(2000πt) is applied to a 100-mH inductance.
A)Find the complex impedance of the inductance.
Answers
The complex impedance of the 100 mH inductance when a voltage vL(t) = 10cos(2000πt) is applied to it is: j200Ω.
What is inductance?
Inductance is a property of an electrical component that describes the ability of the component to store energy in a magnetic field when electric current passes through it.
Inductance is measured in units of henrys (H). When current flows through a component with inductance, it creates a magnetic field around the component that resists changes to the current. This resistance to changes in current is called inductive reactance and is measured in units of ohms.
The complex impedance of an inductor is given by Z = jωL, where ω is the angular frequency and L is the inductance.
Therefore, the complex impedance of the 100 mH inductance when a voltage vL(t) = 10cos(2000πt) is applied to it is:
Z = j(2000π) (100 x 10-3) = j(2π) (100 x 10-3) = j200Ω
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a radioactive element has a half-life of 30 days. calculate the mass of the element that remains after 20 days if 100g of the element decays. Also, calculate the decay constant.
Answers
Explanation:
the answer is in the image above
Two uniformly charged pellets A and B are held some distance from each other, andthen the charge on A is doubled.Which of the following statements is most correct?A.The magnitude of the electric force exerted on A is doubled because the electric field atthe position of A is doubled.B.The magnitude of the electric force exerted on B is doubled because the electric field atthe position of B is doubled.C.The magnitude of the electric force exerted on A is doubled because the electric field atthe position of B is doubled.D.The magnitude of the electric force exerted on B is doubled because the electric field atthe position of A is doubled
Answers
The correct statement is D. The magnitude of the electric force exerted on B is doubled because the electric field at the position of A is doubled.
When two charged particles, such as A and B, are held some distance apart, they exert an electric force on each other due to their charges. The strength of this force is determined by the amount of charge on each particle and the distance between them. This force is called Coulomb force and it follows the Coulomb's law. The Coulomb's law states that the force between two point charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them.
When the charge on A is doubled, the electric field at the position of A increases, and as a result, the force exerted on B also increases. This is because the electric field at the position of A is what causes the force on B. The magnitude of the electric force on B is proportional to the product of the charges of A and B, and inversely proportional to the square of the distance between them. So as the charge on A doubles, the force on B also doubles.
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I already did part a and the magnitude for all the parts. I need help finding the direction.
Answers
b)
Given that,
A=10 N at 0°
B=20 N at 180°
As we can see these two vectors are in opposite directions.
Thus the resultant vector will be in the direction of the vector with the higher magnitude.
In vector addition we can write,
\(C=10\cos 0^0+20\cos 180^0\)Where C is the resultant vector.
Thus magnitude of R will be equal to,
\(R=-10\text{ N}\)The negative sign indicates that the direction of the C is along the negative x-axis.
Thus the magnitude of C is 10 N and the direction of the C is 180°
a)
Given,
A= 10 N at 0°
B=20 N at 0°
The the vector C is
\(C=10\cos 0^0+20\cos 0^0=30\text{ N}\)The direction of R will be along the direction of these two vectors, as they are in the same direction.
Thus the magnitude of the vector C will be 30 N and the direction of the vector C is 0°
c)
Given,
A=10 N at 180°
B=20 N at 180°
Thus the vector C is
\(C=10\cos 180^0+20\cos 180^0=-30\text{ N}\)The direction of the vector C will be along the direction of the negative x-axis, as these two vectors are along the negative x-axis.
Thus the magnitude of the vector C is 30 N and the direction of the vector C is 180°
d)
Given,
A= 10 N at 0°
B=20 N at 90°
The x-component of the vector C will be,
\(C_x=10\cos 0^0+20\cos 90^0=10\text{ }\hat{\text{i}}\)The y- component of C will be,
\(C_y=10\sin 0^0+20\sin 90^0=20\text{ }\hat{j}\)The magnitude of vector C is given by,
\(\begin{gathered} C=\sqrt[]{C^2_x+C^2_y}_{} \\ =\sqrt[]{10^2+20^2} \\ =22.36\text{ N} \end{gathered}\)The direction of the vector C will be,
\(\begin{gathered} \theta=\tan ^{-1}\frac{C_y}{C_x} \\ =\tan ^{-1}\frac{20}{10} \\ =63.43^0 \end{gathered}\)Thus the magnitude of C will be 22.36 N and the direction of C will be 63.43°
e)
Given that
A= 10 N at 90°
B=20 N at 0°
The x-component of the vector C will be
\(C_x=10\cos 90^0+20\cos 0^0=20\text{ }\hat{\text{i}}\)The y-component of the vector C will be
\(C_y=10\sin 90^0+20\sin 0^0=10\text{ }\hat{j}\)The magnitude of the vector C will be
\(\begin{gathered} C=\sqrt[]{C^2_x+C^2_y}_{} \\ =\sqrt[]{20^2+10^2} \\ =22.36\text{ N} \end{gathered}\)The direction of vector C will be,
\(\begin{gathered} \theta=\tan ^{-1}\frac{C_y}{C_x} \\ =\tan ^{-1}\frac{10}{20} \\ =26.56^0 \end{gathered}\)Thus the magnitude of the vector C will be 22.36 N and the direction of the vector C will be 26.56°
Give me right solution with clear calculations
. Tourists arrive at the Manila Zoo at a rate of 250 vehicles per hour. But before entering the zoo, the vehicles must get a brochure and pay the entrance fee at the single entrance booth. If the vehicles can be serviced at a rate of 400 vehicles per hour, determine the percentage of time that the operator of the single entrance booth will be free.
Note: Round off your answers to the nearest thousandths. Only include the numeric value of vour answer without the unit (i.e. 0.123).
Answers
The percentage of time the operator of the single entrance booth will be free is approximately 38.462%.
To determine the percentage of time that the operator of the single entrance booth will be free, we need to calculate the service rate and the arrival rate. The service rate is given as 400 vehicles per hour, and the arrival rate is 250 vehicles per hour. The percentage of time the operator will be free can be calculated using the formula:
Free time percentage = (Service rate - Arrival rate) / Service rate * 100
Substituting the given values into the formula:
Free time percentage = (400 - 250) / 400 * 100
= 150 / 400 * 100
= 0.375 * 100
= 37.5%
Rounding off the answer to the nearest thousandths, the percentage of time the operator of the single entrance booth will be free is approximately 38.462%.
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A diagnostic x-ray machine emits photons with maximum frequency of 1.03 x1019 Hz. The maximum photon energy is _____ keV.
Answers
The correct answer is 30 keV.
hf=(1.60×10−19C)(50.0×103V)
What is a x-ray machine ?Any device that uses X-rays is referred to as an X-ray machine. An X-ray generator and an X-ray detector might be part of it.
Examples comprise:
medical projection radiography equipmentcomputed tomography equipmentAirport security uses backscatter X-ray devices as "body scanners."In X-ray astronomy, detectorslearn more about x-ray machine refer:
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according to past research, why have women engaged in token resistance? group of answer choices they said no but then changed their minds and said yes.
Answers
According to past research, women have engaged in token resistance, which means they said no but then changed their minds and said yes. This occurs because of the cultural expectations that women are supposed to resist sexual advances even if they want to participate.
Because of this, women may feel pressure to refuse initially to maintain their reputation and avoid being seen as promiscuous. However, once the partner persists, they may give in to avoid being seen as too difficult or cold-hearted. Research has indicated that these behaviours are particularly evident in situations where the individual feels vulnerable or feels that they are in a low-power position. Women may also engage in token resistance to test their partner's sincerity and willingness to respect their boundaries. Additionally, it's worth noting that token resistance does not apply only to women, as men may also engage in this behaviour.
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Which describes the substances that form covalent bonds? a metal and a metalloid a metal and a nonmetal two nonmetals two metals
Answers
Answer:
Two non metals
Explanation:
Covalent bonding is a chemical bonding that involves sharing of electrons
a metal and a metalloid can be described as a metallic bond.
a metal and a nonmetal is an example that describes an ionic bonding
While two non metals is a typical example of a covalent bonding.
Therefore, two non metals describes the substances that form covalent bonds
Answer:
C
Explanation:
simple answer
a workman carries some lumber up a staircase. the workman moves 9.6 m vertically and 22 m horizontally. if the lumber weighs 45 n, how much work was done by the workman?
Answers
The total work done by the workman was 432 joules
The workman lifted the lumber a vertical distance of 9.6 m, which means he did work against gravity. The amount of work done is equal to the force (weight of the lumber) multiplied by the distance it was lifted:
Work = force x distance
Work = 45 N x 9.6 m
Work = 432 joules
In addition to lifting the lumber, the workman also moved it horizontally a distance of 22 m. However, since the lumber was not lifted or lowered during this movement, no work was done against gravity.
Therefore, this distance does not affect the amount of work done by the workman.
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The current in a light bulb is 2 A. How long does it take for a total charge of 4 C to pass a point in the wire
Answers
Answer:
2min
Explanation:
i think it will be clear from photo
Answer: The formula for current is charge/time
so here we have to change subject so we are asked to look for time
Explanation: so it would be T=Q/I
T=4/2
T=2s
hope this helpss
A
is the order in which things are arranged.
O plan
sequence
O process
O goal
Answers
Answer:
sequence
Explanation:
sequences are the way in which things are ordered, for example: 1, 2, 3, 4 is a sequence:)
in uniform circular motion, which of the following quantities are constant?
Answers
Answer:
speed
Explanation:
When a body is in uniform circular motion, its speed remains constant but its velocity, angular acceleration, angular velocity changes due to change in its direction.
What is a similar Mid-Ocean Ridge on dry land compared to?
Answers
Answer:
Mid-ocean ridges around the globe are linked by plate tectonic boundaries and the trace of the ridges across the ocean floor appears similar to the seam of a baseball.
Explanation:
The half-life of carbon-14 is 5730 years. How long will it take for the number of
carbon-14 nuclei in a sample to drop to a quarter of the original number?
Enter your answer as a number
years
Answers
Answer:
11460 years
Explanation:
Let N₀ be the initial amount of carbon present. After one half-life, its value is N₀/2, after two half-lives, it is N₀/4 = N₀/2². After n nalf-lives, it is N = N₀/2ⁿ.
Now, if the value of carbon-14 drops to a quarter of its initial value, then N = N₀/4.
So, N₀/4 = N₀/2ⁿ
1/4 = 1/2ⁿ
1/2² = 1/2ⁿ
Comparing the exponents, n = 2.
So the value of carbon-14 present drops to a quarter of its initial value in 2 half-lives.
Since one-half life equals 5730 years, then two-half-lives is 2 × 5730 years = 11460 years
So, it takes carbon-14 11460 years for the number of nuclei to drop to a quarter of its initial value.