We
define the magnetic flux as the product of the electric field times
the perimeter of the ampere surface
true or false
Answers
This is false, we define the magnetic flux as the product of the magnetic field times the area of the ampere surface and not the electric field times the perimeter of the ampere surface. Hence the given statement, "We define the magnetic flux as the product of the electric field times the perimeter of the ampere surface" is false.
Magnetic flux: It is a measurement of the magnetic field passing through a surface. Magnetic flux is measured in Weber (Wb).It is defined as the number of magnetic field lines passing through a closed surface. Mathematically, it can be expressed as; ΦB = B . A. Where ΦB is magnetic flux, B is magnetic field and A is the area of the surface covered.
Ampere’s circuital law: It states that any magnetic field produced by an electric current or the magnetic field in any closed loop is proportional to the electric current that flows through the surface defined by that loop. Mathematically, it is given as; ∫B . dl = μ0i. Where B is the magnetic field, dl is the infinitesimal length of the loop, i is the electric current and μ0 is the permeability of free space.
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Related Questions
Need help please as soon as possible
Answers
1. speed=distance/time
but D=400m
T=32s
there fore
speed=400/32=12.5mls
back ward force=forward force
Andre listed some properties of electromagnetic waves.
1) transfer thermal energy by radiation
2) can transfer energy over great distances
3) need matter to transfer energy through
4) are disturbances that carry energy
Which best describes Andre’s error?
Electromagnetic waves transfer thermal energy by conduction.
Electromagnetic waves can only transfer energy over short distances.
Electromagnetic waves can transfer energy through empty space.
Electromagnetic waves are not considered disturbances.
Answers
Answer: Electromagnetic waves can transfer energy through empty space.
Explanation:
Electromagnetic waves are formed when an electric field comes in contact with a magnetic field. The electric field and magnetic field of an electromagnetic wave are perpendicular to each other. They are also perpendicular to the direction of the wave.
Electromagnetic waves travel with speed of light in vacuum.
Electromagnetic wave does not need a medium to propagate or travel from one place to another. Electromagnetic waves are 'transverse' waves which means that they are measured by their amplitude and wavelength.
Electromagnetic waves do not lose energy when they travel and thus can travel far from its source.
Answer:
C.
Electromagnetic waves can transfer energy through empty space.
Explanation:
cause i dont need one
a metal block has a density of 5000 kg per cubic meter and a mass of 15,000 kg. what is its volume? group of answer choices 15 m3. 3 m3. 0.33 m3. 5 m3.
Answers
The volume of the block is 3 \(m^{3}\).
mass given = 15000 kg and the density given = 5000 kg/m^3
According to the relation of mass, density and volume
Density = (mass / volume)
=> volume = mass / density
=> 15000/5000
= 3 m^3
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The amount of voltage is directly proportional to the changing amount of ____ in the conductor and inversely proportional to the change in the time that occurs.
Answers
The amount of voltage is directly proportional to the changing amount of resistance in the conductor and inversely proportional to the change in the time that occurs.
Voltage is an important concept when it comes to electricity. It is a measure of the electrical potential energy between two points, usually expressed in volts. As such, voltage is directly proportional to the amount of electric charge present in a conductor, and inversely proportional to the time over which the change occurs.
For example, if the amount of charge is increased, the voltage will also increase, while if the time for this change is decreased, voltage will increase as well. This is because when more charge is present in the conductor, there is more potential for energy to be released, and a shorter amount of time means that there is less time for energy to be dissipated.
This is why voltage is inversely proportional to time. Voltage is one of the important factors in the functioning of any electrical circuit, and understanding its relationship to electric charge and time is essential to electricity’s uses and applications.
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How do geologists construct the geologic column?
Answers
Answer:
They do this by joining pieces of different Rock sequences together from different places in the whole world.
Explanation:
Geologic columns are basically an arrangement of rock layers whereby the newest rocks are at the top while the oldest rocks will be at the bottom. Thus, it is like a timescale that's used to find the age of rock formation on the earth around the world.
Friends I need the answer for this ?
Answers
Answer:
\(\small\color{aqua}\tt{{a}}\)
hope it's help
3 QUESTIONS (SCIENCE)
First question: What can bad space weather do to earth?
Second question: What is the purpose of the United Nations Committee, and what do they do?
Third question: What protect Earth form much of the damage from space weather?
Answers
2)they try to make peace, make friendly environments
3)earths magnetic field
Not yet answered
Question 1
Marked out of 100 Flag question
A crane lifts an 8-m long steel girder weighing 1600 N up 12 m off the ground. The
crane did
of work,
WWWVYA
TE
O a 853J
ob 12,800J
Answers
the work done by the crane to lift the steel girder is 19,200 J.
The crane lifts an 8-m long steel girder weighing 1600 N up 12 m off the ground, and it did 12,800 J of work.
This is because the work done by the crane is given by:
Work = Force x Distance x cos(theta)
where,
Force = 1600 N
Distance = 12 m
theta = 0 degrees (since the force is applied vertically upward)
cos(0) = 1
Therefore,
Work = 1600 N x 12 m x 1Work = 19,200 J
So, the work done by the crane to lift the steel girder is 19,200 J.
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write a sentence to describe how an image is formed on retina
when looking at distant objects.
Answers
Answer:
An image is formed on the retina with light rays converging most at the cornea and upon entering and exiting the lens. Rays from the top and bottom of the object are traced and produce an inverted real image on the retina. The distance to the object is drawn smaller than scale
HELP MEEEEE HURRRYYYY EASYY
What best describes the greatest height a ball will bounce off the ground after being dropped from a height of 50 centimeters?
A. Less than 50 centimeters, as the ball transforms some of its thermal energy into sound energy
B. Less than 50 centimeters, as the ball transforms some of its potential energy into sound energy
C. Greater than 50 centimeters, as the ball transforms some of its thermal energy into potential energy
D. Greater than 50 centimeters, as the ball transforms some of its potential energy into thermal energ
Answers
Answer:
C
Explanation:
thats what i think it depends on the amount of force someone dropped the ball with.
Answer: A) "Less than 60 centimeters, as the ball transforms a part of its potential energy into heat energy"
Explanation:
I took the test
. A man and his son run to the top of a hill and stop. The mass of the
man is bigger than the mass of the boy.
a. Write down who has more kinetic energy while they are both
running at the same speed. Explain your answer.
b. Would it be possible for them to have the same amount of kinetic
energy? Explain your answer.
Answers
The person who would have more kinetic energy between the man and the son, would be the man.
The man and the boy can have the same kinetic energy if the son was running faster than his father.
Who has more kinetic energy ?Since the man has a greater mass than his son and they are running at the same speed, the man will have more kinetic energy. This is because the kinetic energy is directly proportional to the mass when the velocity is constant.
For them to have the same kinetic, the son would have to run at a higher speed than the man, so that the product of 0.5 * mass * speed^2 is equal for both of them. In other words, the smaller mass of the son would need to be compensated for by a higher velocity (speed), resulting in equal kinetic energy.
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useful and inconvenience of frictional force of a soccor player running with soccer boots
Answers
They are useful in providing larger frictional force.
The force produced by two surfaces coming into contact and sliding against one another is referred to as frictional force.
The following variables impact the frictional force: Surface roughness and the amount of force pressing them together have the biggest impact on these forces.
Football shoes have spikes or studs because they offer more frictional force when running on grass than regular shoes do.
The studs make it easier for players to move faster and change directions rapidly without slipping while also preventing them from slipping on the grass.
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A simple 15.2 cm reflecting telescope can achieve 1 second of arc resolution for visible light. Many radio telescopes study a particular radio wavelength of 21 cm. Complete parts a −d using the above information. a. Use the Raleigh criteron to determine how large a radio telescope aperature must be to achieve this resolution at 21 cm. b. Why must the aperture of a radio telescope be much larger than that of an optical telescope? c. Why is it possible to resolve two predominantly blue stars when the same telescope can not resolve two simarily separated red stars? d. In the galaxy pictures of 5 b, which photograph corresponds to the largest aperture?
Answers
a)The aperture size of the radio telescope needs to be approximately 0.27 meters b)The aperture of a radio telescope needs to be much larger than that of an optical telescope because radio waves have much longer wavelengths compared to visible light. c)the resolving power of a telescope depends on the ratio of the wavelength of light.
a. To determine the aperture size of a radio telescope to achieve a resolution at 21 cm, we can use the Rayleigh criterion, which states that the minimum resolvable separation (δθ) is given by:
δθ = 1.22 * (λ / D)
Where λ is the wavelength of the radiation and D is the diameter of the telescope's aperture.
Given that the radio wavelength is 21 cm (or 0.21 m), and we want to achieve the same resolution as the optical telescope (1 second of arc), we can rearrange the formula to solve for D:
D = 1.22 * (λ / δθ)
D = 1.22 * (0.21 m / 1 second of arc)
Calculating the result:
D ≈ 0.27 m
Therefore, the aperture size of the radio telescope needs to be approximately 0.27 meters to achieve a resolution of 1 second of arc at a wavelength of 21 cm.
b. The Rayleigh criterion tells us that the resolution of an instrument is inversely proportional to the wavelength.
Since radio waves have longer wavelengths, the telescope's aperture needs to be larger to achieve the same resolution as an optical telescope. This is because a larger aperture collects more incoming waves and allows for finer spatial detail to be resolved.
c. The ability to resolve two objects using a telescope depends on the size of the aperture relative to the wavelength of the radiation. When it comes to resolving stars, the resolving power of a telescope depends on the ratio of the wavelength of light to the size of the telescope's aperture (λ/D).
Blue light has a shorter wavelength compared to red light. Since the resolving power is directly proportional to the wavelength, a shorter wavelength of blue light allows for better resolution.
Therefore, two predominantly blue stars can be resolved because their shorter wavelength allows for finer detail to be distinguished, while the same separation between two predominantly red stars cannot be resolved due to the longer wavelength.
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A steel railroad track has a length of 30.000m when the temperature is 0.0∘C, the ends of the rail are rigidly clamped at 0.0∘C so that expansion is prevented. The thermal stress set up in the rail if its temperature is raised to 40.0∘C is
Answers
The thermal stress set up in the rail when its temperature is raised to 40.0∘C can be calculated using the formula:
Thermal Stress = (Coefficient of Linear Expansion) * (Change in Temperature) * (Young's Modulus)
To calculate the thermal stress, we need to know the coefficient of linear expansion and Young's modulus of the steel rail. Let's assume the coefficient of linear expansion is α and Young's modulus is Y.
Given that the length of the rail is 30.000m and the temperature change is from 0.0∘C to 40.0∘C, the change in temperature is 40.0∘C - 0.0∘C = 40.0∘C.
Assuming we have the values for α and Y, we can substitute them into the formula to calculate the thermal stress.
Thermal Stress = α * (Change in Temperature) * Y
Please provide the values for the coefficient of linear expansion (α) and Young's modulus (Y) for the steel rail so that we can calculate the thermal stress accurately.
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Match the description of an object's motion with the position-time graph that represents at A. slowing down B. moving with constant speed C. not moving D. speeding up
Answers
The descriptions of object's motion with the position-time graph that represents at:
D. speeding up - Graph 1
C. not moving - Graph 2
B. moving with constant speed - Graph 2
A. slowing down - Graph 3
What is motion?Motion is the conceptual notion in which an object moves from its position with respect to time. Motion is acceptable to be described in terms of displacement, distance, velocity, acceleration, speed.
Furthermore, Motion is a change in an object's position over time. It is the result of forces acting upon an object, and can be described in terms of distance, speed, and direction.
Therefore, it is a change of position or orientation of a body with the change of time. looking at the attached graph, it can then be concluded that the correct answers are as given above
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PLEASE HELP WILL GIVE BRAINLIEST (I NEED TWO PICKED) PLZzZZZZ AND THxS
Answers
Answer:
A and B
Explanation:
They contain Chlorophyll
They are relatively tall
HELPPP
10m/s convert into mm/s
Answers
Answer: 10000 mm's
Explanation: Online calculator to convert meters per second to millimeters per second (m/s to mm/s) with formulas, examples, and tables.
In a glass of flat coca cola, the cola is considered a _______ mixture because its composition is ________.
Answers
In n a glass of flat coca cola, the cola is considered a Homogeneous mixture because its composition exists uniform.
What is meant by Homogenous Mixture?A mixture is said to be homogenous if its composition is constant throughout. Because the dissolved salt is evenly distributed throughout the whole salt water sample, the salt water described above is homogenous. Milk, Kool-Aid, blood, lotion, window cleaner, glue, and other homogenous substances. Pizza, cereal with milk, beach rocks, banana splits, and other heterogeneous foods are examples. While heterogeneous combinations can be separated, homogeneous mixes cannot.
A combination is said to be heterogeneous if its composition is not constant throughout. Vegetable soup is a complex concoction. Each mouthful of soup will have differing percentages of the various veggies and other ingredients.
Hence, In n a glass of flat coca cola, the cola is considered a Homogeneous mixture because its composition exists uniform.
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2. At the earth’s surface, a projectile is launched straight up at a speed of 10. 0 km/s. To what height will it rise? ignore air resist
Answers
Answer:
5.097 m
Explanation:
H = vo t - 1/2 a t^2
= 10t - 1/2 (9.81) t^2 max occurs at -b/2a = 10/9.81=1.0194 sec
sub in this 't' value to get H =5.097 m
A penny is dropped from the top of a 240.0 m building and is in
free fall. How long will it take
the penny to hit the ground?
O 24.5 sec
3.5 sec
7 sec
O 5 sec
Answers
Answer:
It would take 5
18.3
Explanation:
It depends on how fast it comes and the timing
what kind of mirror do u think s used in the side-view mirror of cars?
Answers
Answer:
The Convex Mirror is used.
Explanation:
One reason to not use a tympanic thermometer is:
-patient has small ears.
-otitis externa.
-difficulty hearing.
-smoking.
Answers
One reason to not use a tympanic thermometer is the presence of otitis externa.
Otitis externa, also known as swimmer's ear, is an inflammation or infection of the outer ear canal. Using a tympanic thermometer in such a case could exacerbate the condition and cause discomfort to the patient.
Tympanic thermometers work by measuring the infrared heat emitted by the eardrum, which is considered an accurate representation of body temperature.
However, when a patient has otitis externa, the measurement may be inaccurate due to inflammation or presence of debris in the ear canal. Additionally, inserting the thermometer may be painful for the patient. In such cases, it is preferable to use alternative methods for measuring temperature, such as oral, rectal, or axillary thermometers.
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Objects 1 and 2 attract each other with a gravitational force of 36.0 units. If the mass of the object 1 is doubled and the distance separating objects 1 and 2 is tripled
Answers
The net gravitational force will be 9 units.
Therefore, as the mass of either object increases, the attractive force between them also increases. When the mass of either object doubles, the gravitational force between them doubles. Acts along the connecting lines of the particles. where G is the constant of proportionality, a universal constant.
When the mass of an object doubles the force between the objects also doubles. Gravity is directly dependent on the mass of two objects and is inversely proportional to the square of the distance between them. This means that gravity increases with mass and decreases with increasing distance between objects.
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That minimum coefficient of static friction between the tyres and the road that will allow the car that will round safely.
Answers
Answer:
The answer is "\(0.13562748\)"
Explanation:
Please find the complete question in the attached file.
Using formula:
\(\bold{U_s=\frac{v^2}{rg}}\)
Given:
\(r=1.60 \times 10^2 \ m\\\\g=9.8\\\\v= 52.5\ \frac{km}{hr}= 14.583\ \frac{m}{s}\)
put the value into the above-given formula:
\(U_s= \frac{14.583^2}{160 \times 9.8}\)
\(= \frac{212.663889}{1568}\\\\=0.13562748\)
The resonance frequency of an rlc circuit _______ the resonance frequency of the lc circuit.
Answers
Answer:
Electric current is the answer
Explanation:
because in the quistion they explain everything that goes into this
how to calculate the average value of the indirect measurements of KE
Answers
Answer:
1/2 m*(2(h)/t)*g
Explanation:
Kinetic energy refers to the form of energy that's used by an object due to its motion.
You didn't give more information about the values, therefore, the kinetic energy will be explained. It should be noted that when work, which helps in the transfer of energy is done on an object, the object will speed up and thereby gain kinetic energy.
Kinetic energy simply refers to the property of a moving object or a particle. It depends on both motion and mass. The formula for the calculation of kinetic energy is given as:= 1/2mv²
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How could nanotechnology best be used to improve the treatment of cancer with chemotherapy?
A. A nanometer-size carrier could be designed to bring the chemotherapy drugs only to cancer cells.
B. A nano carbon wire could be designed that would aid in the manufacture of chemotherapy drugs.
C. A quantum dot could be used to watch where the chemotherapy drugs go in the body.
D. Biomaterials could be made that would allow for cell growth within the cancer cells so that they are easier to find.
Answers
Answer: A
Explanation: Edg2020
________ refers to fat storage in the waist, hips, and thighs.
Answers
The term pear-shaped refers to fat storage in the waist, hips, and thighs.
The concept of body fat distribution refers to how fat is stored in different areas of the body. The two primary patterns of fat distribution are commonly referred to as "apple-shaped" and "pear-shaped." The term "pear-shaped" specifically describes the fat storage pattern where individuals tend to accumulate excess fat in the waist, hips, and thighs.
In the pear-shaped pattern, fat is deposited predominantly in the lower body, giving the body a narrower upper torso (waist) compared to the wider lower body (hips and thighs), resembling the shape of a pear. This distribution is more common in individuals with a lower body mass index (BMI) and is often associated with the female body shape.
Several factors contribute to the pear-shaped fat distribution, including genetics, hormones, and age. Hormones such as estrogen play a role in directing fat storage in specific areas, and genetic predispositions can influence where fat is deposited. Additionally, as individuals age, hormonal changes and shifts in body composition can impact fat distribution patterns.
Understanding body fat distribution patterns can have implications for overall health. While excess fat storage in the lower body (pear-shaped) is generally considered less risky than excess fat storage in the abdominal region (apple-shaped), both patterns can still contribute to health risks and complications.
It is important to maintain a balanced and healthy lifestyle, including regular physical activity and a nutritious diet, to manage body fat distribution and promote overall well-being.
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An object that has twice as much mass as another object has twice as much
a. inertia
b. gravitational acceleration
c. volume
d. velocity
e. all of the above
Answers
Acceleration is a fundamental concept in physics that describes the rate at which the velocity of an object changes over time. It is defined as the change in velocity divided by the change in time.
Inertia is the property of an object that resists changes in its state of motion. The greater the mass of an object, the greater its inertia. Therefore, an object that has twice as much mass as another object will have twice as much inertia. gravitational acceleration, volume, and velocity are not directly proportional to an object's mass and do not necessarily double when an object's mass doubles.
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In the diagram, q1 = +4.88*10^-8 C.
What is the potential difference when
you go from point A to point B?
Include the correct sign, + or - .
B
0.538 m
1.36 m
91 |
(Hint: Does V go up or down when you go
from B to A?) (Unit = V)
Answers
Answer:
ΔV = 1139.3 V = 1.139 KV (+ve sign shows V goes up)
Explanation:
The potential difference while moving from point A to Point B is given as follows:
\(\Delta V = V_B-V_A\)
where,
ΔV = potential difference from A to B = ?
\(V_A\) = Potential at point A = \(\frac{kq}{r_A}\)
\(V_B\) = Potential at point B = \(\frac{kq}{r_B}\)
Therefore,
\(\Delta V = \frac{kq}{r_B}-\frac{kq}{r_A}\\\\\Delta V = kq(\frac{1}{r_B}-\frac{1}{r_A})\)
where,
k = Colomb's Constant = 9 x 10⁹ N.m²/C²
q = magnitude of charge = 4.88 x 10⁻⁸ C
\(r_A\) = distance of point A from charge = 1.36 m
\(r_B\) = distance of point B from charge = 0.538 m
Therefore,
\(\Delta V = (9\ x\ 10^9\ N.m^2/C^2)(4.88\ x\ 10^{-8}\ C)(\frac{1}{0.538\ m}-\frac{1}{1.36\ m})\\\\\Delta V = (439.2 N.m^2/C)(2.59\ /m)\)
ΔV = 1139.3 V = 1.139 KV (+ve sign shows V goes up)
The answer is 492.87.
Correct on Acellus