equal charges, one at rest, the other having a velocity v, are located in in the same uniform magnetic field. which charge has the largest force exerted on it by the magnetic field
Answers
The force experienced by a charged particle in a magnetic field is given by the equation F = qvB, where q is the charge of the particle, v is its velocity, and B is the magnetic field strength.
In this scenario with equal charges in the same uniform magnetic field, the charge with a velocity v will experience a larger force exerted on it by the magnetic field.
This is because the magnetic force acting on a moving charge is given by F = q(v x B), where F is the magnetic force, q is the charge, v is the velocity, and B is the magnetic field. When the charge is at rest (v = 0), the magnetic force acting on it is zero.Since both charges have the same magnitude of charge, the force on each charge will depend only on their velocities and the magnetic field strength.However, since one charge is at rest and the other has a velocity v, the charge with the velocity will experience a larger force from the magnetic field. This is because the velocity term in the equation is non-zero for the moving charge, while it is zero for the charge at rest. Therefore, the charge with the velocity v will have the largest force exerted on it by the magnetic field.Know more about the magnetic field
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Related Questions
a 50 kg aardvark runs with a speed of 6 m/s. what is the kinetic energy of the aardvark
Answers
Answer:
900 J
Explanation:
0.5 x 50= 25 x 6^2= 900 J
In relation to line locators conductive is
A) a direct connection with the pipe and transmitter
B) an indirect connection with radio waves
Answers
In relation to line locators, conductive refers to a direct connection between the pipe and transmitter. Conductive locating involves connecting a transmitter to a metallic pipe or cable and then using a receiver to detect the signal transmitted through the pipe or cable.
The transmitter sends an electrical signal through the conductive material, which is then picked up by the receiver. This technique is particularly useful when locating pipes or cables that are buried underground or hidden behind walls. By using conductive locating, line locators can accurately determine the location, depth, and direction of the pipe or cable. In contrast, an indirect connection with radio waves, as in option B, is referred to as inductive locating, which involves detecting the electromagnetic field around the pipe or cable. While inductive locating can be useful in some situations, such as locating non-conductive pipes or cables, it is less accurate than conductive locating. Overall, conductive locating is a key technique used by line locators to accurately and efficiently locate buried or hidden pipes and cables.
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Help me please. i seriously hate physics
Answers
Answer:
A
Explanation:
Yep, your answer is correct. The cart at point A is above all other positions, it has the highest height.
Use the energy method to determine the deflected shape of a rectangular plate a x b, simply supported along
each edge and carrying a concentrated load F at a position (r1, y) . The deflected shape of the plate can be
represented by the series DO MAT nay Amn sin sin b TIL
Answers
The energy method is a technique used to determine the deflected shape of a rectangular plate subjected to a concentrated load. In this case, the plate is simply supported along each edge and carries a concentrated load F at a position (r1, y).
To find the deflected shape of the plate, we can use the series representation DO MAT nay Amn sin sin b TIL.
Now, let's break down the steps to determine the deflected shape using the energy method:
1. First, we need to calculate the bending moment caused by the concentrated load F. The bending moment can be given by the formula M = F * (b - r1),
where b is the width of the plate and r1 is the distance of the concentrated load from one edge.
2. Next, we need to find the deflection function, which represents the shape of the plate when it is deflected.
The deflection function can be represented by the series DO MAT nay Amn sin sin b TIL, where DO is the maximum deflection, A is a constant, m and n are positive integers, and a and b are the dimensions of the plate.
3. Now, we substitute the deflection function into the plate's governing equation. The governing equation for a rectangular plate simply supported along each edge is given by the biharmonic equation:
∇^4w = 0,
where ∇^4 represents the Laplacian operator.
4. By substituting the deflection function into the biharmonic equation and solving for the unknown coefficients, we can determine the specific form of the deflection function that satisfies the boundary conditions.
5. Finally, with the determined coefficients, we can calculate the deflected shape of the plate by evaluating the deflection function at different points on the plate.
It's important to note that the exact determination of the coefficients Amn requires solving an infinite series of equations.
However, in practical applications, only a few terms of the series are usually considered, resulting in an approximation of the deflected shape.
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Explain how dangerous floods can be.
PLEASE HELP! GIVING BRAINLIEST
Answers
Answer:
Explanation:Standing flood waters can also spread infectious diseases, contain chemical hazards, and cause injuries. Each year, flooding causes more deaths than any other hazard related to thunderstorms. The most common flood deaths occur when a vehicle is driven into hazardous flood waters.
a collection of hydrogen atoms in the ground state is illuminated with ultraviolet light of wavelength 75.0 nm. find the kinetic energy of the emitted electrons.
Answers
The kinetic energy of the emitted electrons is 11.24 eV.
What is kinetic energy?The following is the physics definition of kinetic energy:
The amount of effort that a moving object may accomplish is measured by its kinetic energy.
Kinetic energy is a scalar quantity that can only be fully explained by its magnitude.
Given parameters:
Wavelength of ultraviolet light : λ = 75.0 nm.
Energy of the ultraviolet light: E = hc/λ = 1242/75.0 eV= 22.84 eV
Potential energy of a electron of hydrogen atoms in the ground state is -13.6 eV.
This energy of light supplies required potential energy to the emitted electron and kinetic energy of electron.
So, the kinetic energy of the emitted electrons = 22.84 eV - 13.6 eV = 11.24 eV.
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what is similar between scientific theory and scientific law
Answers
Answer:
Explanation:
In general, a scientific law is the description of an observed phenomenon. It doesn't explain why the phenomenon exists or what causes it. The explanation of a phenomenon is called a scientific theory.
Which of the following Resistors A, B, C or D, would use the least power? Make
your claim, give evidence and explain your reasoning. You may use math to support
your claim.
Please Help.
Answers
i think the answer is D 10.0
a) what is the maximum value of the current? b) when the current is a maxiumum, what is the emf of the generator?
Answers
The pace at which electrons flow past a location in a complete electrical circuit is defined as current.
What is the maximum current value in the circuit?In a circuit, the maximum alternating voltage and current are 400 V and 20 A, respectively. The alternating values have a frequency of 50 hertz and are sinusoidal. Current is the rate at which a charge moves through a circuit point. The highest current might be drawn while the external resistance is zero. Electromotive force, abbreviated E or emf, is the amount of energy per unit electric charge delivered by an energy source such as a generator or a battery. As the gadget works on the electric charge being transported inside itself, energy is changed from one form to another in the generator or battery.
Electromotive force (also electroosmotic, abbreviated emf, indicated or) is an energy transfer to an electric circuit per unit of electric charge, measured in volts, in electromagnetism and electronics. Electrical transducers generate an emf by transforming various types of energy into electrical energy.
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Answer
Explanation
Which object has the most thermal energy?
A. A 6 kg rock at 10°C
B. A 10 kg rock at 10°C
C. A6 kg rock at 15°C
D. A 10 kg rock at 15°C
Answers
Answer:
D is the answer
Explanation:
D is the most highest one so
the answer is D
Answer:
10 kg rock at 15 degrees celcius
Can the sun explain global warming? ( 2 points) Suppose that the Earth has warmed up by 1 K in the last hundred years. i) How much would the solar constant have to increase to explain this? ii) Compare this to the observed fluctuation of the solar constant over the past 400 years (shown in class) For part (i), begin with the standard 'blackbody' calculation from class, that is: set α=0.30, and assume that the Earth acts as a blackbody in the infrared.
Answers
No, the sun cannot explain global warming. Global warming is a phenomenon in which the temperature of the Earth's surface and atmosphere is rising continuously due to human activities such as deforestation, burning of fossil fuels, and industrialization.
This increase in temperature cannot be explained only by an increase in solar radiation.There are several factors which contribute to global warming, including greenhouse gases such as carbon dioxide, methane, and water vapor. These gases trap heat in the Earth's atmosphere, which causes the planet's temperature to rise. The sun's radiation does contribute to global warming, but it is not the main cause.
i) To calculate the increase in solar radiation that would cause the Earth to warm up by 1 K, we can use the following formula:ΔS = ΔT / αWhere ΔS is the increase in solar constant, ΔT is the increase in temperature, and α is the Earth's albedo (reflectivity).α = 0.30 is the standard value used for the Earth's albedo.ΔS = ΔT / αΔS = 1 K / 0.30ΔS = 3.33 W/m2So, to explain the increase in temperature of 1 K over the last hundred years, the solar constant would need to increase by 3.33 W/m2.
ii) The observed fluctuation of the solar constant over the past 400 years has been around 0.1% to 0.2%. This is much smaller than the 3.33 W/m2 required to explain the increase in temperature of 1 K over the last hundred years. Therefore, it is unlikely that the sun is the main cause of global warming.
The sun cannot explain global warming. While the sun's radiation does contribute to global warming, it is not the main cause. The main cause of global warming is human activities, particularly the burning of fossil fuels, which release large amounts of greenhouse gases into the atmosphere.
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A 60 watt light bulb runs for 5 seconds. How much energy does
it use?
Answers
A cylindrical rod has a length L 0
= 130 cm and a radius r, is suspended vertically. When an object of mass 1700 g is hanged from the end of the rod its length extends by 30 cm. The rod is made from a material with a Young's modulus given by Y=1.6×10 3
N/m 2
. 1) (2 points) the amount of stretch ΔL= m 2) (2 points) In the formula-sheet provided, which equation can be used to calculate the stain? 3) (4 points) The strain = 4) (4 points) The magnitude of the tension force in the rod is F T
= 5) (2 points) In the formula-sheet provided, which equation can be used to calculate the stress? 6) (4 points) The stress = 7) (2 points) In the formula-sheet provided, which equation can be used to calculate the cross-sectional area of the rod? 8) (3 points) The cross sectional area of the rod is: A= m 2
9) (3 points) The radius of the rod is: r=m Formula Sheet h=6.62×10 −34
l.s
h=4.135×10 −15
eV.s
J=6.26×10 18
eV1eV=1.6×10 −19
Jc=3×10 n
m/s
Charge of electron =−1.6022×10 −19
C, Charge of proton =1.6022×10 −19
C.
G=6.672×10 −11
kg 2
N⋅m 2
K=9×10 9
c 2
N⋅m 2
kTT=0.026eVkg=1.38×10 −23
lK
h= 2π
h
=1.053×10 −34
J.s
h= 2π
h
=6.582×10 −16
eV.s
1. v
~
avg
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2. r
f
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avg
Δt 3. p= ε
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4. a
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5. v
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6. d
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7. p
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= F
net Δt
9. P
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ant
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= v
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=k s
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on 2by 1
=−G ∣∣ 2
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15. g=G π 2
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16. F
on 2 by 1
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q 1
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18. Y= Strain Strees
19. Stress = A
F T
20. Strain = L
ΔL
21. f s
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F N
22. f k
=μ k
F N
23. F eet
= dt
d p
ˉ
Answers
The strain of the rod is ΔL/L0, the stress is (mg)/A, and the cross-sectional area can be calculated using A=πr^2.
1) The amount of stretch ΔL = 30 cm.
2) The equation that can be used to calculate the strain is: Strain = ΔL / L0.
3) The strain = ΔL / L0 = 30 cm / 130 cm.
4) The magnitude of the tension force in the rod is FT = mg, where m is the mass of the object (1700 g) and g is the acceleration due to gravity.
5) The equation that can be used to calculate the stress is: Stress = FT / A, where FT is the tension force and A is the cross-sectional area of the rod.
6) The stress = FT / A = (mg) / A.
7) The equation that can be used to calculate the cross-sectional area of the rod is: A = πr^2, where r is the radius of the rod.
8) The cross-sectional area of the rod is: A = πr^2.
9) The radius of the rod is: r = √(A / π).
Given that the length of the rod without any external force is L0 = 130 cm and when the object of mass 1700 g is hung from the rod, its length extends by ΔL = 30 cm.
To calculate the strain, we use the formula Strain = ΔL / L0, where ΔL is the change in length and L0 is the original length.
The tension force in the rod is given by FT = mg, where m is the mass of the object (1700 g) and g is the acceleration due to gravity.
Stress is calculated using the formula Stress = FT / A, where FT is the tension force and A is the cross-sectional area of the rod.
The cross-sectional area of the rod is given by A = πr^2, where r is the radius of the rod.
To find the radius, we rearrange the equation for cross-sectional area: r = √(A / π).
Using the given values and formulas, we can determine the requested quantities for the cylindrical rod.
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Which substance would most likely form sedimentary rock?
Answers
HOPE IT HELPS.
Shale,sandstone, and limestone are the most common types of sedimentary rocks.
An old Chrysler with mass 2450 kg is moving along a straight stretch of road at 86 km/h. It is followed by a Ford with mass 1675 kg moving at 52 km/h. How fast is the center of mass of the two cars moving
Answers
The speed of the center of mass of the two cars can be determined by calculating the weighted average of their velocities.
To find the speed of the center of mass, we calculate the weighted average of the velocities of the two cars based on their masses. Let v1 be the velocity of the Chrysler (86 km/h) and m1 be its mass (2450 kg), and let v2 be the velocity of the Ford (52 km/h) and m2 be its mass (1675 kg).The formula for the velocity of the center of mass is given by:
v_cm = (m1 * v1 + m2 * v2) / (m1 + m2)
Plugging in the values, we have:
v_cm = (2450 kg * 86 km/h + 1675 kg * 52 km/h) / (2450 kg + 1675 kg)
Evaluate the expression to find the speed of the center of mass of the two cars.
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what was the main advantage of a dial phone over an operator-controlled switchboard
Answers
distance
gravitational constant
X Suppose the gravitational force between two spheres is 60 N. If the
magnitude of each mass doubles, what is the force between the masses?
120 N
180 N
140 N
300 N
Answers
Answer:
C. 240 N
Explanation:
I think you have the third answer choice incorrect. It should be 240N because that is the correct answer
From newtons law of gravitation, the gravitational force equation between two objects is given by
\(F = \dfrac{Gm_1m_2}{r^2}\)
where m₁ and m₂ are the masses of the two objects, G = gravitational constant and r the distance between the objects
If we double m₁ and m₂, the new gravitational force becomes
\(F = \dfrac{G(2m_1)(2m_2)}{r^2} = \dfrac{4Gm_1m_2}{r^2}\\\\\)
which is 4 times the original force
So if original force = 60 N, then resultant force after doubling both the masses = 4 x 60 =240N
Waldo needs to know how much force to apply in order to move a 4000-kg object at 2 m/S2. Which law should he refer to
Answers
Answer:
Newton's second law of motion?
how did clair patterson determine the age of earth
Answers
Answer:
Patterson isolated lead from fragments of a meteorite that had struck Earth thousands of years ago, and determined the age of the fragments by analyzing proportions of the lead isotopes. The meteorite is assumed to have been formed at the same time as the rest of the solar system, including Earth
Explanation:
Two protons are 5.508 fm apart. (1 fm= 1 femtometer = 1 x 10-15 m.) What is the ratio of the electric force to the gravitational force on one proton due to the other proton?
Answers
The gravitational force between two point particles with masses M and m separated a distance r is given by Newton's Law of Universal Gravitation:
\(F_G=G\frac{Mm}{r^2}\)On the other hand, the electric force between two point particles with charges Q and q separated a distance r is given by Coulomb's Law:
\(F_E=k\frac{Qq}{r^2}\)Where G is the gravitational constant and k is the Coulomb's constant:
\(\begin{gathered} G=6.6743\times10^{-11}N\frac{m^2}{kg^2} \\ \\ k=8.98755\times10^9N\frac{m^2}{C^2} \end{gathered}\)Then, the ratio between the electric and gravitational forces between two particles with charge Q and q and mass M and m is:
\(\frac{F_E}{F_G}=\frac{k\frac{Qq}{r^2}}{G\frac{Mm}{r^2}}=\frac{kQq}{GMm}\)The mass and charge of a proton are:
\(\begin{gathered} m=1.67262\times10^{-27}kg \\ \\ q=1.602\times10^{-19}C \end{gathered}\)Replace both charges and both masses for those of a proton to find the ratio of the electric force to the gravitational force on one proton due to the other proton. Notice that the result of the ratio between the forces is the same independently of the distance between the protons:
\(\begin{gathered} \frac{F_E}{F_G}=\frac{kQq}{GMm} \\ \\ =\frac{(8.98755\times10^9N\frac{m^2}{C^2})(1.602\times10^{-19}C)(1.602\times10^{-19}C)}{(6.6743\times10^{-11}N\frac{m^2}{kg^2})(1.67262\times10^{-27}kg)(1.67262\times10^{-27}kg)} \\ \\ =1.23528...\times10^{36} \\ \\ \approx1.235\times10^{36} \end{gathered}\)The electric force between two protons is 10^36 times stronger than the gravitational force between them.
Therefore, the answer is:
\(1.235\times10^{36}\)2. The speed of a wave is 65 m/sec. If the wavelength of the wave is 0.8 meters, what
is the frequency of the wave? How long did it take the wave to travel 225 meters?
Answers
It took the wave approximately 3.46 seconds to travel a distance of 225 meters.
To find the frequency of a wave when given the speed and wavelength, we can use the formula:
frequency = speed / wavelength
Substituting the given values into the formula, we get:
frequency = 65 m/s / 0.8 m
frequency = 81.25 Hz
Therefore, the frequency of the wave is 81.25 Hz.
To calculate the time it took for the wave to travel a distance of 225 meters, we can use the formula:
time = distance / speed
Substituting the given values into the formula, we get:
time = 225 m / 65 m/s
time = 3.46 s (rounded to two decimal places)
Therefore, it took the wave approximately 3.46 seconds to travel a distance of 225 meters.
It's important to note that the formulas used assume that the wave is traveling in a uniform medium without any dispersion or other factors that could affect its speed or behavior. In reality, waves can encounter various phenomena that may alter their characteristics.
However, for the purpose of this calculation, we have assumed a simplified scenario where the wave travels at a constant speed and exhibits a single wavelength.
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What is the index of refraction of a material in which the red-light wavelength is 450 nm?.
Answers
The calculated refractive index is 1.38≤n≤1.67.
Thus, through the refractive index n, the wavelength inside the medium and the wavelength in free space are connected.
n=λ/λ₀
The wavelength of red light in free space ranges from 620 nm to 750 nm. To human eyes, each of those wavelengths appears red. Refractive index is given by
n1 =620 nm/450 nm
=1.38
and n2=750 nm/450 nm
=1.67 in the equation above.
According to the details you provided, the refractive index might be any value between 1.38 and 1.67.
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2. A bullet was shot by a gun with an initial speed of 260 m/s and is fired at an angle of 30 to the ground. a. How much is the value Vy at the top of the bullet's trajectory? b. Calculate the time taken by the bullet to reach its maximum altitude. c. Deduce the total time taken by the bullet in the air. d. Calculate the range of the bullet.
Answers
Answer:
Explanation:
a )
the value Vy at the top of the bullet's trajectory will be zero . At the top , only the horizontal component Vx will exist .
b )
At the top Vy = 0
initial velocity will have vertical component = 260 sin30 = 130 m /s
acceleration = - g = - 9.8
v = u - gt
o = 130 - 9.8 t
t = 13.26 s .
c )
Total time = Time of ascent + time of descent
= 13.26 + 13.26 = 26.52 s
d )
Range R = u² sin2Ф / g , where u is initial velocity , Ф is angle of throw , g is acceleration due to gravity .
R = 260² sin 2 x 30 / 9.8
= 5973.8 m .
what is the longest wavelength of electromagnetic radiation that will ejectphotoelectrons from sodium metal for which the work function is 2.28 ev?
Answers
The longest wavelength of electromagnetic radiation that will eject photo-electron from the sodium metal is 544 nm.
What is electromagnetic radiation ?Electromagnetic radiation consists of waves of electromagnetic field, which propagates through space and carries momentum and electromagnetic radiant energy.
Minimum energy required to knock out an electron from the surface of the metal is called the work function.
As we know that, W= hc/λ
h -- Planck's constant ; c -- Speed of light
and λ is Longest wavelength
Given, work function of sodium metal is 2.28 eV
As 1 eV = 1.6021 * 10^-19 J
=2.28 * 1.6021 * 10^-19
= 3.65 *10^-19 J
W= hc/ λ
3.65 *10^-19 = 6.62 *10^-34 * 3 *10^8/ λ
λ = 5.44 * 10 ^-7m
λ =544 nm
The longest wavelength of electromagnetic radiation that will eject photo-electron from the sodium metal is 544 nm.
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A particular engine takes in 10,000 J of heat, does 2,000 J of work, and as it runs discharges heat. Its own energy is the same when it
has finished as when it started. How much heat did it discharge if this is a closed system?
10,000 J
12,000 J
2,000 J
8,000 J
Answers
Answer:
8000 J
Explanation:
There is a Quizlet made by a teacher with this answer.
you perform 100 j of work on a refrigerator that extracts heat from a cold reservoir and dumps heat into a hot reservoir. the amount of heat dumped into the hot reservoir must be
a. equal to 100 J
b. less than 100 J
c. greater than 100 J
Answers
The amount of heat that is dropped in the hot reservoir is equal to 100 J. Option A
What is the first law of thermodynamics?According to the first law of thermodynamics, we know that energy can neither be created nor destroyed but can be converted from one form another.
We can see that as the heat is transferred from the we do some work so as to be able to extracts heat from a cold reservoir and dumps heat into a hot reservoir. Since heat can neither be created nor destroyed, the heat that is dumped must be equal to the amount of heat that is extracted.
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If the temperature of the air (ambient temperature) is 30°C and a metal ball cools from 100°C to 70°C in 15 minutes. Find how long it will take for the metal ball to reach a temperature of 40°C. Given that this this process can be modelled by dT -=-k(T-To), where the symbols have their usual meanings. dt (5)
Answers
The equation dT/dt = -k(T - To) represents the rate of change of temperature with respect to time, where T is the temperature of the metal ball at a given time, To is the ambient temperature, k is the cooling constant, and dT/dt denotes the derivative of temperature with respect to time.
We can solve this first-order differential equation to find the time it takes for the metal ball to reach a temperature of 40°C.
Given:
Initial temperature (T0) = 100°C
Final temperature (T) = 40°C
Ambient temperature (To) = 30°C
The equation can be rewritten as:
dT / (T - To) = -k dtIntegrating both sides:
∫ dT / (T - To) = -k ∫ dt
Applying the natural logarithm:
ln|T - To| = -kt + C
To determine the constant C, we use the initial condition:
ln|T0 - To| = -k(0) + C
ln|T0 - To| = C
Substituting the values:
ln|100 - 30| = ln|70| = C
The equation becomes:
ln|T - To| = -kt + ln|70|
Now, we can solve for the time it takes for the metal ball to reach a temperature of 40°C.
ln|T - To| = -kt + ln|70|
ln|40 - 30| = -k(t) + ln|70|
ln|10| = -kt + ln|70|
ln(10) - ln(70) = -kt
Simplifying,
ln(10/70) = -kt
Rearranging the equation to solve for time (t):
t = -ln(10/70) / k
To find the value of the cooling constant k, we can use the given information that the metal ball cools from 100°C to 70°C in 15 minutes.
ln(70 - 30) = -k(15)
ln(40) = -15k
Solving for k:
k = -ln(40) / 15
Now we can substitute the value of k into the equation for time (t):
t = -ln(10/70) / (-ln(40) / 15)
t ≈ 10.97 minutes
Therefore, it will take approximately 10.97 minutes for the metal ball to reach a temperature of 40°C.
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please help me
I’m taking a test and I don’t understand this at all
Answers
Answer:
4 CM
Explanation:
The dotted car means thats were it started, the car to the right is were it stops. count the lines from the start of the dotted car to the start of the shaded car. hope that helped!
Is acceleration directly proportional to mass, or is it inversely proportional to mass?
Will give brainliest
Answers
Answer:
The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object
Answer:
It’s actually A) Inversely
Explanation:
in the laboratory a student finds that it takes 161 joules to increase the temperature of 11.7 grams of solid magnesium from 24.5 to 38.9 degrees celsius.
Answers
Specific heat capacity of solid magnesium is 0.9556 J/g C.
What is specific heat capacity?
When a material's temperature rises by 1 K (or 1 °C), or when its mass increases by 1 kg, the specific heat capacity is defined as the amount of heat (J) absorbed per unit mass (kg). This measurement is expressed as J/(kg K) or J/(kg °C).
According to the given question:
C = Q/m.T
T = T2 - T1 = 38.9 - 24.5 = 14.4 C
C = 11.7/(161 x 14.4) = 0.9556 J/g C
Specific heat capacity of solid magnesium is 0.9556 J/g C.
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