at what angle does an electric field pass through a line of equal potential
Answers
An electric field passes through a line of equal potential at a right angle, or perpendicular to the line.
An electric field always passes through a line of equal potential at a 90-degree angle (perpendicular). This is because electric field lines represent the force experienced by a test charge in the field, and lines of equal potential (equipotential lines) represent regions where the electric potential is constant. Since no work is done in moving a charge along an equipotential line, the electric field must be perpendicular to it to ensure zero work is done.
The electric field is directed from higher potential to lower potential, and the gradient of the potential is perpendicular to the line of equal potential. Therefore, the electric field must be perpendicular to this gradient and thus perpendicular to the line of equal potential.
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Related Questions
What might happen if transformers didn't exist?
Answers
Answer:aaaa
Explanation:aaaa
A 9.00 kg mass is moving to the right with a velocity of 14.0 m/s. A 12.0 kg mass is moving to the left with a velocity of 5.00 m/s. Assuming that these two balls have a head on collision and stick together, what will be the final velocity of the combination? (3.1 m/s)
Answers
Answer:
5.95 m/s to the right
Explanation:
Before the collision, the momentum of the system is given by:
p = m1v1 + m2v2
p = (9.00 kg)(14.0 m/s) + (12.0 kg)(-5.00 m/s)
p = 125.0 kg m/s (to the right)
During the collision, the two masses stick together, so their final velocity will be the same. Let's call this final velocity vf. The momentum of the system after the collision is given by:
p' = (m1 + m2)vf
p' = (9.00 kg + 12.0 kg)vf
p' = 21.0 kg vf
Since momentum is conserved in the collision (there are no external forces acting on the system), we can set p = p' and solve for vf:
125.0 kg m/s = 21.0 kg vf
vf = 5.95 m/s (to the right)
Therefore, the final velocity of the combined masses after the collision is 5.95 m/s to the right.
. (a) what parameters affect the inductance of a coil? (b) does the inductance of a coil depend on the current in the coil?
Answers
(a) Parameters that affect the inductance of a coil include the number of turns in the coil, the cross-sectional area of the coil, the length of the coil, the magnetic permeability of the core, and the shape of the coil. (b) Yes, the inductance of a coil depends on the current in the coil.
(a) Several parameters affect the inductance of a coil. They are:
Number of turns of the coil
Cross-sectional area of the coil
Length of the coil
Permeability of the core (if the coil has a core)
Presence of other materials close to the coil
(b) Yes, the inductance of a coil is dependent on the current in the coil.
Inductance is the property of a coil to store energy in a magnetic field when a current is passed through it.
The inductance of a coil is directly proportional to the number of turns of the coil, the cross-sectional area of the coil, and the permeability of the core (if the coil has a core).
The inductance of a coil is inversely proportional to the length of the coil.
Thus, by increasing the number of turns, the cross-sectional area of the coil, and the permeability of the core, the inductance of the coil can be increased.
By increasing the length of the coil, the inductance of the coil can be reduced.
The inductance of a coil is also dependent on the current in the coil.
When the current in a coil changes, it creates a magnetic field around the coil, which induces a voltage in the coil.
This voltage opposes the change in current, which is known as self-inductance.
The higher the current in the coil, the higher the magnetic field and the higher the inductance of the coil.
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Once a person passes the age of 65, he or she should stop exercising.
Please select the best answer from the choices provided.
ОТ
OF
Answers
Answer: False
People age 65 and older still need exercise. Although the intensity of each workout won't be as high compared to younger ages. Everyone needs exercise to keep their heart healthy, to lower the bad cholesterol, etc.
Answer:
no
Explanation:
very false
A spring has a relaxed length of 28 cm (0.28 m) and its spring stiffness is 11 N/m. You glue a 78 gram block (0.078 kg) to the top of the spring, and push the block down, compressing the spring so its total length is 13 cm. You make sure the block is at rest, then at time you quickly move your hand away. The block begins to move upward, because the upward force on the block by the spring is greater than the downward force on the block by the Earth. Calculate vs. time for the block during a 0.06-second interval after you release the block, by applying the Momentum Principle in three steps each of 0.02-second duration.
Answers
The velocity of the block vs. time during a 0.06-second interval after you release the block, by applying the Momentum Principle in three steps each of 0.02-second duration.
The sum of the initial potential energy and initial kinetic energy is equal to the sum of the final potential energy and final kinetic energy.0 + 0.0611 J = 0.0258 J + 1/2(0.078 kg)v0²v0 = -0.4804 m/sStep 2 0.04 s)The momentum of the block at time t = 0.02 s is given by:p = mv = (0.078 kg)(-0.4804 m/s) = -0.0375 kg⋅m/s.
The displacement x can be found from the initial velocity v0 and the acceleration a using the kinematic equation:v = v0 + atwhere v is the velocity at time t and t is the time interval. Therefore,x = x0 + v0t + 1/2at²where x0 is the initial displacement.
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For taking bath, water at 40⁰C is required. Calculate the mass of cold water at 15⁰C which is to be added in 60 Kg water at 100⁰C for bathing purpose. 1 point a) 51Kg b) 47Kg c) 44 Kg d) 39Kg
Answers
If an electric motor uses 50 kJ of energy to do 46 kJ of work, how efficient is it?
Answers
Answer:
The efficiency of an electric motor can be calculated using the formula:
Efficiency = (Work output ÷ Energy input) x 100%
In this case, the motor uses 50 kJ of energy to do 46 kJ of work. Plugging in the values:
Efficiency = (46 kJ ÷ 50 kJ) x 100%
Efficiency = 0.92 x 100%
Efficiency = 92%
Therefore, the efficiency of the electric motor is 92%.
Explanation:
Answer: 92%
Explanation:
The efficiency of the electric motor is 92%. This is calculated by dividing the amount of work done by the amount of energy used, in this case 46/50. This gives 0.92, or 92%.
Highlight two factors which show that heat from the sun does reach the earth surface by conversation
Answers
Answer:
Radiation
Explanation:
The sun heat the earth by the process called radiation.
Radiation is form of heat transfer method just like convection and conduction. Radiation heat transfer does not require medium to propagate, unlike its other two counterparts. There is no medium between earth and sun.
The radiation heat travels through space in form of waves. Like the electromagnetic wave with a specific speed and energy.
Could someone please help
Answers
Answer: Dispersion
Explanation:
An ocean wave travels at 2.2m/s if the wavelength is 11 meters what’s the frequency of the wave in Hz
Answers
Answer:
0.2 Hz
Explanation:
f = v / λ.
Where f = frequency,
v = velocity/speed,
λ = wavelength.
f = v / λ →
f = 2.2m/s / 11 m
f = 2.2 / 11 [1 / s]
f = 1 / 5 [Hz]
f = 0.2 Hz
Why are light-years more convenient than miles, kilometers, or astronomical units (au) for measuring the distances to stars and galaxies? (select all that apply.)
Answers
Answer:
sEE BELOW
Explanation:
Well.....because the numbers are 'astronomical'....meaning VERY, VERY , VERY LARGE
on the graph below, what is the total distance traveled during the recorded time interval? what is the displacement?
Answers
The total distance traveled during the recorded time interval would be 5 meters and the displacement of the object would be 5 meters.
What is displacement?Displacement is a vector quantity. This indicates that it has both a direction and a magnitude and that it is visually represented as an arrow that points from the starting position to the ending position.
As given in the problem we have to find out the total distance and the displacement of the object from the graph shown in the problem,
The displacement of the object = Final position - Initial position
=6 - 1
= 5 meters
Thus, The total distance traveled during the recorded time interval would be 5 meters and the displacement of the object would be 5 meters.
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The current through inductance L is given by I=I0e−t/τ.
A.) Find an expression for the potential difference ΔVL across the inductor. Express your answer in terms of given quantities.
B.) Evaluate ΔVL at t=0s, if L=14mH, I0=51mA, and τ=1.0ms.
Answers
The expression for the potential difference across an inductor can be found using the formula for the voltage across an inductor, which is given by the equation:
\(\[V_L = -L \frac{dI}{dt}\]\)
Since we are given the current as a function of time, \(\(I = I_0 e^{-t/\tau}\)\) , we can differentiate it with respect to time to find \(\(\frac{dI}{dt}\)\). Taking the derivative, we get:
\(\[\frac{dI}{dt} = -\frac{I_0}{\tau} e^{-t/\tau}\]\)
Substituting this expression for \(\(\frac{dI}{dt}\)\) into the equation for \(\(V_L\)\), we have:
\(\[V_L = -L \left(-\frac{I_0}{\tau} e^{-t/\tau}\right)\]\)
Simplifying the equation, we obtain:
\(\[V_L = \left(-\frac{I_0L}{\tau} e^{-t/\tau}\right)\]\)
B.)To evaluate \(\(\Delta V_L\)\) at t=0s, we substitute t=0 into the expression we derived in part A. Given that \(\(L = 14 \, \text{mH}\)\), \(I_0 = 51 mA\) and \(\(\tau = 1.0 \, \text{ms}\)\), we have:
\(\[\Delta V_L = \frac{(51 \times 10^{-3})(14 \times 10^{-3})}{1.0 \times 10^{-3}} e^{-(0)/(1.0 \times 10^{-3})}\]\)
Simplifying the expression, we find:
\(\[\Delta V_L = (0.714) \, \text{V}\]\)
Therefore, at t=0s, the potential difference across the inductor is 0.714V.
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Question: Why do you think the door opens, even if it is pushing back at equal force?
Answers
Assuming 700 W/m2 solar irradiance and a 40 % efficient solar panel, how much roof area should be covered to supply 9 A at 120 V? A- (within three decimal places)
Answers
The roof area that should be covered to supply 9 A at 120 V is approximately 2.844 m².
Determine the required roof area?To calculate the required roof area, we can start by determining the power (P) needed to supply 9 A at 120 V.
Using the formula P = IV, where I is the current and V is the voltage, we find that P = 9 A × 120 V = 1080 W.
Next, we can calculate the solar panel's power output considering its efficiency. If the solar irradiance is 700 W/m² and the panel is 40% efficient, the power output per square meter of the panel will be 0.4 × 700 W/m² = 280 W/m².
To determine the required roof area, we can divide the required power (1080 W) by the power output per square meter (280 W/m²): 1080 W / 280 W/m² ≈ 3.857 m².
However, this value represents the total area required. Since solar panels are typically rectangular, we need to consider the shape and dimensions of the panels. Assuming a square panel, the roof area that should be covered is approximately the square root of the total area: √3.857 m² ≈ 1.964 m.
Rounding to three decimal places, the roof area that should be covered is approximately 2.844 m².
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HELPPP!!! During a soccer game, a player kicks the winning goal. When is work being done by the player?
A) when the ball flies through the air
B) when the player moves toward the ball
C) when the player’s foot is in contact with the ball
D) when the player’s foot continues to move after touching the ball
Answers
Answer:
when the player’s foot is in contact with the ball
Explanation:
Which object has the most thermal energy?
A. A 10 kg rock at 10°C
B. A 6 kg rock at 15°C
C. A 10 kg rock at 15°C
D. A 6 kg rock at 10°C
Answers
Answer:
10 kg rock at 15 degrees
Explanation:
did test
A man pushes against a tree with a force of 10 newtons (N). The tree does not move. What is the amount of force exerted
by the tree on the man?
ON
BSN
10 N
20 N
Answers
Answer:
10 N
Explanation:
Given that,
A man pushes against a tree with a force of 10 newtons.
We need to find the amount of force exerted by the tree on the man.
The force exerted by the tree on the man will be equal to the force that the man exert on the tree as per Newton's third law of motion.
It means the tree exert 10 N force on the man. Hence, the correct option is (c) i.e. 10 N.
Net arc energy input Hnet=fxHnet
Answers
The equation you are referring to, Hnet=fxHnet, relates to the net arc energy input of a welding process.
The net arc energy input, Hnet, is equal to the product of the welding current, f, and the welding voltage, Hnet. This equation is used to calculate the amount of energy that is transferred to the weld during the welding process.
It is important to monitor the net arc energy input to ensure that the weld is of high quality and to prevent defects such as porosity and cracking.
By adjusting the welding current and voltage, the net arc energy input can be optimized for the specific welding application.
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Invent a previously untried set of changes to make something interesting happen. Describe what you did, and what the effects were.
Answers
Answer:
Since gravitational force is inversely proportional to the square of the separation distance between the two interacting objects, more separation distance will result in weaker gravitational forces. So as two objects are separated from each other, the force of gravitational attraction between them also decreases.
a crane lifts a piano that weighs 3,240 n in the air 10m in 60 seconds. how much power does the crane have?
Answers
The crane has a power of 540 watts when it lifts the 3,240 N piano 10 meters in 60 seconds.
To calculate the power of the crane, we need to use the formula:
Power = Work / Time
The work done by the crane is equal to the force it applies multiplied by the distance it lifts the piano, which is:
Work = Force x Distance
Work = 3,240 N x 10 m
Work = 32,400 Joules
The time it takes for the crane to lift the piano is given as 60 seconds.
Now we can substitute these values into the formula for power:
Power = Work / Time
Power = 32,400 J / 60 s
Power = 540 watts
The 3,240 N piano is lifted 10 metres in 60 seconds by the crane, which has a power of 540 watts.
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State all the facts and information within the picture.
Answers
Pyrite Stone:
Pyrite, also known as fool's gold, is a mineral composed of iron and sulfur. It has a metallic luster and a brassy yellow color. Found in sedimentary rocks and hydrothermal veins, pyrite has a hardness of 6 to 6.5 on the Mohs scale. It has industrial uses in sulfuric acid production, fertilizers, and batteries. Pyrite can oxidize and cause environmental concerns. It is also used in jewelry and decorative items.
Cement Bricks:
Cement bricks, made from a mixture of cement, sand, and water, are widely used in construction for their strength, durability, and weather resistance. They offer advantages over traditional clay bricks and come in various sizes, shapes, and colors. Cement bricks are cost-effective, provide thermal insulation, and require proper construction practices for quality and longevity. Efforts have been made to develop sustainable alternatives to reduce energy consumption and carbon emissions.
Pyrite Stone:
Pyrite, also known as iron pyrite or fool's gold, is a mineral with the chemical formula FeS2. It is composed of iron and sulfur.It has a metallic luster and a brassy yellow color, often resembling gold. However, it is important to note that pyrite is not gold and does not have any intrinsic value.Pyrite is commonly found in sedimentary rocks, such as shale or limestone, as well as in hydrothermal veins and metamorphic deposits.It has a hardness of 6 to 6.5 on the Mohs scale, which means it is relatively soft compared to many other minerals.Pyrite is often used in various industrial applications. It is a source of sulfur in the production of sulfuric acid, and it is also used in the manufacturing of fertilizers, sulfur dioxide scrubbers, and certain types of batteries.In its natural form, pyrite can sometimes oxidize and form sulfuric acid, leading to acid mine drainage, which can be environmentally damaging.Pyrite has also gained popularity as a decorative stone in jewelry and ornamental pieces due to its unique appearance.Cement Bricks:
Cement bricks, also known as concrete bricks, are building materials made from a mixture of cement, sand, and water.The main component of cement bricks is cement, which acts as a binder, holding the other materials together.Cement bricks are manufactured through a process of mixing the cement, sand, and water, followed by molding and curing.They are commonly used in construction for building walls, pavements, and other structures.Cement bricks have several advantages over traditional clay bricks. They offer better strength, durability, and weather resistance.Cement bricks are available in various sizes, shapes, and colors to suit different construction needs and aesthetic preferences.They are relatively cost-effective compared to other building materials and provide good thermal insulation properties.The production of cement bricks requires energy and contributes to carbon emissions, so efforts have been made to develop more sustainable alternatives, such as fly ash bricks or eco-friendly cement.Proper construction practices, including correct mixing ratios and adequate curing, are essential for ensuring the quality and longevity of cement brick structures.For more such information on: mineral
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what is a transformer? what are the primary and secondary coils and how does it make use of induction?
Answers
A transformer is a device that transfers electrical energy between two or more coils of wire through electromagnetic induction. The primary coil receives electrical energy, while the secondary coil delivers the transformed energy.
In a transformer, the primary coil is connected to the input voltage source, and the secondary coil is connected to the load. When an alternating current flows through the primary coil, it creates a changing magnetic field. This changing magnetic field induces an alternating current in the secondary coil, transferring energy to the load.
The principle behind a transformer is electromagnetic induction, which states that a changing magnetic field induces an electromotive force (EMF) in a nearby conductor. The ratio of the number of turns in the primary and secondary coils determines the voltage transformation. Transformers are widely used in electrical power distribution systems to increase or decrease voltage levels for efficient transmission and distribution of electricity.
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If several balls are thrown straight up with different initial speeds, the quantity that will have the same value along their paths is their.
Answers
The quantity that will have the same value along their paths is their acceleration option (D).
What is acceleration?The rate at which the speed and direction of a moving object alter over time is known as acceleration. When anything begins to move faster or slower, it is said to be accelerating.
If we ignore air resistance, there will only be one force acting on the balls because they are all hurled straight up into the air: the force of gravity.
Where m is the ball's mass, the force of gravity acting on each ball is given by
The acceleration caused by gravity is known as g (9.8 m/s², downhill).
According to Newton's second law,
F=ma,
where F is the net force exerted on the ball:
And after simplifying, we discover that the acceleration of each ball is: and since g is a constant value, we draw the conclusion that each ball's acceleration is the same regardless of mass or initial speed.
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Complete question is "If several balls are thrown straight up with different initial speeds, the quantity that will have the same value along their paths is their(A) initial momentum.(B) maximum height.(C) time of travel.(D) acceleration".
Materials A, B, and C are solids that are at their melting temperatures. Material A requires 200 J to melt 4 kg, material B requires 300 J to melt 5 kg, and material C requires 300 J to melt 6 kg. Rank the materials according to their heats of fusion. If multiple materials rank equally, use the same rank for each, then exclude the intermediate ranking (i.e. if objects A, B, and C must be ranked, and A and B must both be ranked first, the ranking would be A:Greatest, B:Greatest, C:Third greatest). If all materials rank equally, rank each as 'Greatest'.
Answers
Answer:
B: Greatest, A: Second greatest, C: Second geratest.
Explanation:
We can calculate the heat of fusion of a material (ΔHfus), which is the heat required to melt 1 kg of material, using the following expression.
ΔHfus = Q/m
where,
Q: heat providedm: massMaterial A
ΔHfus = 200 J/4 kg = 50 J/kg
Material B
ΔHfus = 300 J/5 kg = 60 J/kg
Material C
ΔHfus = 300 J/6 kg = 50 J/kg
Then, considering the heats of fusion,
B: Greatest, A: Second greatest, C: Second greatest.
State the Universal Law Of Gravitation
Answers
Answer: Newton's law of universal gravitation is usually stated as that every particle attracts every other particle in the universe with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.
Explanation:
Hope this helps!
Answer:
every particle attracts every other particle in the universe with force directly proportional to the product of the masses and inversely proportional to the square of the distance between them.
A light bulb consumes 150 J of electrical energy per second but only emits 15 J of light energy per second. Calculate the efficiency of the bulb.
Answers
Answer:
10% efficiency
Explanation:
Formula for efficiency :
⇒ Efficiency (η) = Output energy (E₂) / Input energy (E₁)
===============================================================
Given :
⇒ Input Energy (E₁) = 150 J
⇒ Output Energy (E₂) = 15 J
=============================================================
Solving :
⇒ η = 15/150
⇒ η = 1/10
⇒ η = 10% efficiency
Given: NM 1 XZ
Prove: AXYZ- ANYM
N
Try 11
X
Z
M
We know that side NM is
to side
XZ. If we consider side NY the transversal for these
parallel lines, we create angle pairs. Using the
we can state
that YXZ is congruent to YNM. We know that angle
XYZ is congruent to angle
by the reflexive
property. Therefore, triangle XYZ is similar to triangle
NYM by the
similarity theorem.
F
Answers
The prove of Angle XYZ- Angle NYM is given below:
∠XYZ is congruent to ∠NYM - reflexive property. ΔXYZ is the same with Δ NYM,- AA (angle-angle) similarity theorem.What is the triangle about?Note that from the image given;
NM // XZNY = transversal line∠YXZ ≡ ∠YNMSince ∠XYZ is said to be congruent to ∠NYM it can be proven by the use of the reflexive property.
The reflexive property is one that informs that any shape is regarded congruent to itself.
Since ∠NYM has a different way to call ∠XYZ that uses a different vertexes, but the sides are made up of the two angles which are said to be the same.
Therefore , ∠XYZ ≡ ∠NYM are proved by the reflexive property.
Since ΔXYZ is the same with Δ NYM, it can be proven by the AA (angle-angle) similarity theorem.
We have 2 angles Δ XYZ and Δ NYM:
Note that ∠YXZ ≡ ∠YNM
∠XYZ ≡ ∠NYM
So, ΔXYZ is said to be the same to ΔNYM and it is proven by the AA similarity theorem.
Therefore, The prove of Angle XYZ- Angle NYM is given below:
∠XYZ is congruent to ∠NYM - reflexive property. ΔXYZ is the same with Δ NYM,- AA (angle-angle) similarity theorem.Learn more about triangles from
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Answer:
1. parrael
2. corresponding angles theorem
3. NYM
4. AA
Explanation:
just took it
please help asap!!!!!!!!!!!
Answers
The answer in standard form/scientific notation would be 2 x 10^4
(The exponent is 4 because that's how many digits after the 2 there is)
If it takes 35J to lift up an object to some height, then how much gravitational potential energy will that object have?