what is the magnetic field amplitude b0b0 of an electromagnetic wave that has an electric field amplitude e0e0e 0 of 0.465 v/mv/m ?

The peak wavelength of the emission spectrum of a star is 320 nm Object 1 is three times as hot as object 2.

In physics, the wavelength is the length over which a periodic wave repeats, or its spatial period. It is a property of both traveling waves and standing waves as well as other spatial wave patterns. It is the distance between two successive corresponding locations of the same phase on the wave, such as two nearby crests, troughs, or zero crossings. The spatial frequency is the reciprocal of wavelength. The Greek letter lambda () is frequently used to represent wavelength. The term wavelength is also occasionally used to refer to modulated waves, their sinusoidal envelopes, or waves created by the interference of several sinusoids.

Question :

Object 1 is observed to be emitting most of its light at a wavelength of 320 nm (ultraviolet). Object 2 is observed to be emitting most of its light at a wavelength of 960 nm (infrared). How much hotter is object 1 than object 2?

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4.8× 10^-11 weber is the magnetic force on a proton that is moving at 2.5 × 10^7 m/s up through a magnetic field that is 0.12 T

F=qBv

q=1.6 x 10^-19 C

v=2.5 × 10^7 m/s

B=0.12T

F=qBv

F=1.6 x 10^-19 C×2.5 × 10^7 m/s×0.12T

F=4.8× 10^-11 weber

A magnetic force, attraction, or repulsion is produced by the motion of electrically charged particles. It is the underlying force that causes phenomena like the operation of electric motors and the attraction of magnets to iron. There are electric forces acting on stationary electric charges, and there are magnetic and electric forces acting on moving electric charges. The magnetic force between two moving charges is the effect of a magnetic field produced by one charge on another charge.

The intensity of the magnetic field B1 produced by the first moving charge, the sine of the angle theta, the second particle's charge q2, its velocity v2, and the magnetic force F are all inversely related in this hypothesis.

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Given the graph of period vs amplitude.

It can be seen from the graph that the plot of the period versus amplitude is almost a horizontal line. That is, as the amplitude increase, the period of the pendulum remains almost unchanged.

This is also consistent with the fact that the period of the simple pendulum indeed does not depend upon its amplitude.

Thus, according to the graph, the period does not depend on the amplitude.

From Newton's second law of motion, the magnitude of the force applied is 1022.4 N

Force can simply be defined as a pull or push. It is the product of mass and acceleration and it is a vector quantity.

Given that Avery hurls the 0.527-kg football to Tyrone the ball reaches Tyrone with a speed of 19.4 m/s Tyrone catches the pass bringing it to a dead stop in 0.010 seconds before heading up field.

The force F applied to the ball  = mass × acceleration. That is,

F = ma

Where

Acceleration a = v/t

a = 19.4/0.01

a = 1940 m/s²

Force F = ma

F = 0.527 × 1940

F = 1022.4 N

Therefore, the force applied to the ball is 1022.4 N

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Given data

*The given radius of the wheel is r = 30.0 cm = 0.30 m

*The given angle of the wheel rotates in 1.00 s is

*The angular velocity of the wheel is

The formula for the linear speed of a point on the wheel's rim is given as

Substitute the known values in the above expression as

Hence, the linear speed of a point on the wheel's rim is v = 53.4 m/s

The formula for the wheel's frequency of rotation is given as

Substitute the known values in the above expression as

Hence, the wheel's frequency of rotation is f = 28.34 Hz

The Power required for a 1150 kg car to climb is 104.46kW.

L = 100 m, 0°, 1150 kg, and 12 s are the values.

Energy E = mxgh = mxglxsin = 1150x9.8x100xsin30=563500J

Power, P, is calculated as follows: 563500 / 12 = 46958.

3 watts equal 46.95 kW

E = mgxlsin+1/2mv2 and gxlsin+mv2

E = 1081000 J P = E / T = 1081000 / 12 = 90083.33 W = 90.1 kW E = 1150 x 9.8 x 100 x Sin 30 + 0.5 x 1150 x 30 x 30

E = m x g x L Sin + mv - mu - half

0.5 x 1150 x 35 x 35 - 0.5 x 1150 x 5 x 5 E = 1150 x 9.8 x 100 x Sin 30 Plus  = 104.46 kW = 104458.33 W = 563500 + 704375 - 14375 = 1253500 J P = E / T

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When substances combine chemically,

C) the total mass of both substances will be equal to the mass of each of the mass added together.

State the Law of Conservation of Mass?

"The mass cannot be created through a chemical reaction, neither can it be destroyed."

following this law the mass of the products and the mass of the reactants are always equal in a physical or chemical transition.

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The moment of inertia for this combination is I when m is 2d from the axis and 2m is 2d from the axis, therefore I = mr2.

Moment of inertia is a word used to describe a physical property that measures how resistant a body is to having the speed of its rotation along an axis modified by the application of a torque (turning force). Axis options include internal, external, stationary, and moving.

The moment of inertia is recognized as such and not as a moment of force because it opposes circular motion.

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Visible light, x-rays, and radio waves are forms of electromagnetic waves that can travel through vacuum and mater.

The horizontal velocity of the marble is 3.33 m/s.

option D is the correct answer.

The initial horizontal velocity of the marble is calculated by applying the following equation as shown below;

X = Vₓt

where;

The time of motion of the marble from the table is calculated as follows;

t = √(2h/g)

where;

t = √(2 x 1 / 9.8)

t = 0.45 seconds

The horizontal velocity of the marble is calculated as;

Vₓ = X / t

Vₓ = 1.5 m / 0.45 s

Vₓ = 3.33 m/s

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7.26 x 10-5 rad/sec

The angle of one rotation is 2π. The time required for this rotation is 24 hours to calculate the angular speed of the Earth as it rotates completely around its own axis. Average Angular Velocity Wav is the average rate of change of angular displacement.

On converting the hours into seconds we get,

Time = 24 hr x 60 min/hr x 60 sec/min = 86400 sec

The angular speed is given by the formula, ω = θ /t.

after substituting the value given in the equation we get,

ω = 2π / 86400 Seconds

ω = 0.0000726 radians/sec = 7.26 x 10-5 rad/sec

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360 degrees per 24 hours

The retail industry's customer service representatives outperformed all other industries in 2008, and the cable and satellite tv representatives scored lowest due to little knowledge of their product and service.

In the case of retail industry, it was easy to show courteousness, helping mentality and to offer discounts in 2008. The service executives had good knowledge on the products sold in the retail industry which helped them to handle the issues efficiently. Hence they received very high scores compared to other industries.

But cable and satellite TVs were in its initial stages in 2008 and hence the representatives had a little knowledge on the same to address customer doubts. Hence it was difficult for them to address the issues and giving discounts was also not possible due to the high cost required for installation and service.

Therefore, the cable and satellite tv representatives scored lowest due to little knowledge of their product and service.

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The given statement is true

Inertia is the tendency of an object to stay at rest or in motion

1 ) The coefficient of static friction μs by using the equation (2) = 0.26

3 ) The coefficient of kinetic friction μk by using the equation (1) = 0.19

1 ) The coefficient of static friction

μ[tex]_{s}[/tex] = [tex]f_{s} _{max}[/tex] / F[tex]_{n}[/tex]

μ[tex]_{s}[/tex] = 125 / 50 * 9.8

μ[tex]_{s}[/tex] = 0.26

3 ) The coefficient of kinetic friction

μ[tex]_{k}[/tex] = [tex]f_{k}[/tex] / F[tex]_{n}[/tex]

μ[tex]_{k}[/tex] = 94 / 50 * 9.8

μ[tex]_{k}[/tex] = 0.19

4 ) Yes, from ( 1 ) and ( 3 ),

μ[tex]_{s}[/tex] > μ[tex]_{k}[/tex]

5 ) μ[tex]_{k}[/tex] = [tex]f_{k}[/tex] / F[tex]_{n}[/tex]

μ[tex]_{k}[/tex] = 188 / 100 * 9.8

μ[tex]_{k}[/tex] = 0.19

6 ) No the μ[tex]_{k}[/tex] from ( 3 ) and ( 5 ) are exactly the same.

7 ) Since μ[tex]_{k}[/tex] from ( 3 ) and ( 5 ) are exactly the same, coefficient of friction is constant.

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Answer:A fuse is an electrical safety device that has the capability to protect an electric circuit from excessive electric current. It is designed to allow current through the circuit, but in the event that the current exceeds some maximum value it will open, severing the circuit.

Explanation:

Answer:

See below

Explanation:

Ground wires and fuse are used  to help  avoid an electrical shock   and current overload (and possible fire)

228 m/s velocity would be at 440 mm.

initial height , hi = 3100 m

hf = 430 m

time taken is t

3100 - 430 = 0.5 × 9.8 × t^2

t = 23.34 s

time taken=23.34 s

let the speed is u

u =[tex]\sqrt(2 * g * (hi - hf))[/tex]

u = [tex]\sqrt(2 * 9.8 * (3100 - 440))[/tex]

u = 228 m/s

her speed is 228 m/s

A vector number known as velocity describes "the pace at which an item changes its location." Imagine a person moving quickly, taking one stride ahead, one step back, and then beginning from the same place each time. A vector quantity is velocity. As a result, velocity is aware of direction. One must consider direction while calculating an object's velocity. Saying that an item has a velocity of 55 miles per hour is insufficient. The direction must be included in order to adequately characterize the object's velocity. Simply said, the velocity vector's direction corresponds to the motion of an item.

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The kinetic energy when it returns to its original height is 100 J

The ball is thrown up with a Kinetic Energy K. E. = 0.5×m×v² = 100 J

Therefore the final height is given by

u² = v² -2·g·s

Where:

u = final velocity = 0

v = initial velocity

s = final height

Therefore v² = 2·g·s = 19.62·s

P.E = Potential Energy = m·g·s

Since v² = 2·g·s

Substituting the value of v² in the kinetic energy formula, we obtain

K. E. = 0.5×m×2·g·s = m·g·s = P.E. = 100 J

When the ball returns to the original height, we have

v² = u² + 2·g·s

Since u = 0 = initial velocity in this case we have

v² = 2·g·s and the Kinetic energy = 0.5·m·v²

Since m and s are the same then 0.5·m·v² = 100 J.

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Only when a current passes through a wire encircling the core of an electromagnetic magnet do they become magnetic.

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Answer:

Explanation:

every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force.

If a gram of antimatter meets a kilogram of matter, the amount of mass to survive is 1 gram.

Matter :

A substance called matter is made up of different kinds of particles, occupies space, and has inertia.

The various types of particles each have a unique mass and size according to the fundamentals of modern physics.

Antimatter :

As the opposite particles of the corresponding particles in "ordinary" matter, the antimatter is defined as matter made up of them.

The two particles' combined mass is entirely converted into energy. The term "matter-antimatter annihilation" refers to this process.

If a gram of antimatter meets a kilogram of matter, the amount of mass to survive is 1 gram.

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Answer:it should be A

Explanation:

The strength of gravity of planets Jupiter and Pluto are 23.1m/s² and  0.6m/s² respectively.

We are given that,

The mass of the shoes =  m=0.500 kg

The weigh  of the shoes on the Jupiter = W₁=11.55 N

The weigh of the shoes on the Pluto = W₂=0.3 N

Therefore, the weight to mass ratio determines the strength of gravity, or the acceleration caused by gravity.

[tex]g_{j} = \frac{w_{1} }{m}[/tex]

Putting the values in above equation we can get,

[tex]g_{j} = \frac{11.55N}{0.500kg}\\ g_{j} = 23.1m/s^{2}[/tex]

Since, the gravity strength of planet Jupiter would be 23.1m/s²

[tex]g_{p} =\frac{w_{2} }{m} \\g_{p} = \frac{0.3N}{0.500kg} \\g_{p} = 0.6 m/s^{2}[/tex]

Thus, the gravity strength of planet Pluto may be 0.6m/s².

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Option C: Rock formations are subducted into the mantle after subduction.

Where two or more lithospheric plates meet, a geological process called as subduction recycles rocks from the oceanic lithosphere into the Earth's mantle. Where the tectonic plate converged between the oceanic lithosphere and a less dense lithosphere, the heavier plate sinks beneath the other plate into the mantle.

Deeply subducted sedimentary and metaphorical rocks eventually melt to generate magma, which subsequently cools to form igneous rock.

Therefore the rock cycle encompasses the entire process and lasts millions of years.

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f = μ N

N = m g

f = Frictional force

μ = Co-efficient of friction

N = Normal force

m = Mass

g = Acceleration due to gravity

m = 2000 + 55 + 55

m = 2110 kg

g = 9.8 m / s²

μ = 0.02

f = 0.02 * 2110

f = 42.2 N

According to Newton's second law of motion,

F = m a

F = Force

a = Acceleration

F = 1060 N

a = F / m

a = 1060 / 2110

a = 0.5 m / s²

Therefore,

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Answer:

Option 2

Explanation:

Since they want to know kinetic energy being increased, it cannot be Options 1 or 3. So now we're left with 2 and 4. 4 seems to be decreasing, so we can eliminate that. So, our answer is Option 2.

Two object experiencing force between them the strength of the force increases as the mass increases , and decreases as the distance increases.

A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.

The gravitational constant, denoted by the capital letter G, is an empirical physical constant involved in the calculation of gravitational effects in Sir Isaac Newton's law of universal gravitation and in Albert Einstein's theory of general relativity.

f = Gmm/r²

Two object experiencing force between them the strength of the force increases as the mass increases , and decreases as the distance increases.

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Answer: 0.54 kg meter per second

Explanation:

this is a cost of 0.180. Multiplying by 1.5 divided by 5 equals 0.54 Kg meter per second. This is the momentum.

I hope this helps!

Given,

The mass of the car, m=1000 kg

The velocity of the car, v=20 m/s

The kinetic energy of an object is the energy of the body possessed due to its motion. The kinetic energy of a body is directly proportional to the square of the velocity of the object.

The kinetic energy of the car is given by,

On substituting the known values,

Thus the kinetic energy of the given car is 200 kJ.

ANSWER

The applied force is larger than the frictional force

EXPLANATION

If we draw a free-body diagram,

By Newton's second law, for the horizontal forces is,

If the wagon is speeding up, it means that there is a positive acceleration. Therefore, the difference Fa - Ff is positive,

Hence, the applied force is greater than the frictional force.