A piece of glass with index of refraction 1.50 is coated with a coating of thickness 138 nm and index of refraction 1.22. Light traveling perpendicular to the surface of the glass reflects at the interface between air and the coating, and at the interface between the coating and the glass. What is the largest vacuum wavelength for which the interference between the two reflected rays is completely destructive

Answer:

The correct answer would be A.

Explanation:

I have gotten this answer many times and have never failed once just trust me.

The owner's velocity is in the opposite direction of the combined velocity of the dog and the cat, and its magnitude is approximately 0.916 m/s.

To solve the given problem, we can use the principle of conservation of momentum to find the direction and magnitude of the owner's velocity.

Let's denote the velocity of the dog as v1 (northward), the velocity of the cat as v2 (eastward), and the velocity of the owner as v (unknown).

According to the conservation of momentum, the total momentum before the interaction is equal to the total momentum after the interaction.

The total momentum before the interaction is given by:

Total momentum before = (mass of the dog * velocity of the dog) + (mass of the cat * velocity of the cat) + (mass of the owner * velocity of the owner)

Mass of the dog (m1) = 24.4 kg

Velocity of the dog (v1) = 2.14 m/s

Mass of the cat (m2) = 5.53 kg

Velocity of the cat (v2) = 3.56 m/s

Mass of the owner (m3) = 78.5 kg

Velocity of the owner (v) = unknown

Total momentum before = (24.4 kg * 2.14 m/s) + (5.53 kg * 3.56 m/s) + (78.5 kg * v)

The total momentum after the interaction is zero since the owner has the same momentum as the pets taken together.

Total momentum after = 0

Equating the two expressions:

(24.4 kg * 2.14 m/s) + (5.53 kg * 3.56 m/s) + (78.5 kg * v) = 0

Simplifying the equation:

(52.216 kg·m/s) + (19.6488 kg·m/s) + (78.5 kg * v) = 0

71.8648 kg·m/s + (78.5 kg * v) = 0

Solving for v:

78.5 kg * v = -71.8648 kg·m/s

v = -71.8648 kg·m/s / 78.5 kg

v ≈ -0.916 m/s

Therefore, the direction of the owner's velocity is opposite to the combined velocity of the dog and the cat, and the magnitude of the owner's velocity is approximately 0.916 m/s.

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The frictional force involved when a penny sinks to the bottom of a wishing well is primarily due to viscous drag or fluid friction. As the penny moves through the water, it experiences resistance from the surrounding fluid. This resistance is caused by the frictional forces between the water molecules and the penny's surface.

Answer:

it's a Bugatti

Explanation:

I seen pictures and videos of one for what they look like from the inside or the outside

Answer:kinetic energy

Explanation:

This question can simply be solved by using the formula of kinetic energy.

The kinetic energy of the object will be "2268 J".

Kinetic Energy, is the energy possessed by a body or object due to its motion. The formula of kinetic energy is given as follows:

\(K.E = \frac{1}{2}mv^2\)

where,

K.E = Kinetic Energy of the object = ?

m = mass of the object = (100 lb)\((\frac{1\ kg}{2.2046\ lb})\) = 45.36 kg

v = speed of the object = 10 m/s

Therefore,

\(K.E = \frac{1}{2}(45.36\ kg)(10\ m/s)^2\)

K.E = 2268 J = 2.268 KJ

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The phase difference between two points on a progressive wave are out of phase by 0.41 rad is 23°.

An equation is an expression that shows the relationship between two or more numbers and variables.

The two points on a progressive wave are out of phase by 0.41 rad.

Hence, Phase difference = 0.41 rad

But:

Rad to degree = (rad * 180/π)°

Hence:

0.41 rad = (0.41 rad * 180/π) = 23°

The phase difference between two points on a progressive wave are out of phase by 0.41 rad is 23°.

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The carbon has a mass of 3.0 g and a volume of 10 cm³. So we will calculate the density. The formula to calculate its density is:

d = m/v

We substitute the data in the formula and solve:

d = 3.0 g/10 cm³

d = 0.3 g/cm³

Therefore the density of the carbon sample is 0.3 g/cm³. Opction "A".

The current in the circuit is 2.5 A.

Voltage across the wire AX, V = 4 - 2 = 2V

Resistance per unit length of wire AX, R/l = 2 Ω/m

Length of the wire, l = 0.4 m

Resistance of the wire,

R = R/l x R

R = 2 x 0.4 = 0.8 Ω

According to Ohm's law, the current in the wire AX,

I = V/R

I = 2/0.8

I = 2.5 A

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Answer:

It will travel 350 meters each second.

Explanation:

The unit rate, 350 m/s, tells us that the jet will travel 350 meters per every second elapsed.

Answer:

5.83 seconds

Explanation:

60 seconds in 1 minute

350 meters per second

350/60

=5.83

Answer:

yea yes they can they lose their retina but they can dream

The electric field strength at a point 1.00 cm to the left of the middle is  -2.0 x 10⁷ N/C.

The magnitude of the force is 94.4 N and direction of the force on it towards the right.

The electric field strength at a point 1.00 cm to the left of the middle is calculated as follows;

E = kq/r²

Electric field due to first charge

E1 = (9 x 10⁹ x 6 x 10⁻⁶)/(0.02)²

E1 = 1.35 x 10⁸ N/C

Electric field due to second charge

E2 =  -(9 x 10⁹ x 1.5 x 10⁻⁶)/(0.01)²

E2 = - 1.35 x 10⁸ N/C

Electric field due to third charge

E3 = - (9 x 10⁹ x 2 x 10⁻⁶)/(0.03)²

E3 = -2.0 x 10⁷ N/C

E = E1 + E2 + E3

E = +1.35 x 10⁸ N/C - 1.35 x 10⁸ N/C - -2.0 x 10⁷ N/C

E = -2.0 x 10⁷ N/C

F = Eq

F = - 2.0 x 10⁷ x -4.72 x 10⁻⁶

F = 94.4 N

Thus, the direction of the force will be towards the right.

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Answer:

true

Explanation:

Because if u have seen many velocity videos or got taught it then u should know

Answer:

im sorry huh this isnt physics

Explanation:

Since the  refractive index of the core is higher than that of the cladding, light in the core striking the cladding boundary at an angle steeper than the critical angle is reflected back into the core by total internal reflection.

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The distance traveled by the sprinter during the first 6 seconds when it accelerate from rest and moving with a velocity of 12 m/s is 36 m.

This is the total length between two points

To calculate the distance traveled by the sprinter during the first 6 seconds, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the distance traveled by sprinter during the first 6 seconds is 36 m.

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The resultant of two displacement vectors having opposite directions is the difference of the two displacements, having the same direction as the smaller vector.

When two displacement vectors have opposite directions, it means they are pointing in opposite ways. In other words, one vector is in the opposite direction of the other. To find the resultant of these vectors, we need to subtract one vector from the other.

If we consider two displacement vectors, let's say vector A and vector B, and they have opposite directions, we can represent them as A and -B.

To find the resultant, we subtract vector B from vector A: A - (-B) or A + B.

The resultant will have the same direction as the smaller vector. This is because when we subtract a larger vector from a smaller vector, the resultant will have the direction of the smaller vector.

Therefore, the correct option is: "The resultant is the difference of the two displacements, having the same direction as the smaller vector."

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Answer:

its distance and displacement

Explanation:

Answer:

its temperature stays constant

Explanation:

The final velocity of the cars if they stick together is 1.36 m/s.

The final velocity of the cars if they  stick together is calculated by applying the principle of conservation of linear momentum as follows;

m₁u₁ + m₂u₂ = v(m₁ + m₂)

where;

1200(15 cos60) - 1000(6 x cos0) = v (1200 + 1000)

3000 = 2200v

v = 3000/2200

v = 1.36 m/s East of south.

Thus, The final velocity of the cars if they  stick together is 1.36 m/s.

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Answer:

It cannot be constant because if it does not change and each time it increases its strength and speed.

Explanation:

The mass of the helium sample is approximately 0.187 g.

To solve this problem, we can use following formula:

w = nR(T2 - T1)

We can rearrange this formula to solve for n:

n = w / (R * (T2 - T1))

To find the mass of the helium sample, we can use following formula:

m = n * M

where m is the mass of the sample, n is  number of moles of gas, and M is the molar mass of helium.

Substituting the given values into the first equation, we get:

70 J = n * 8.31451 J/mol*K * (358 K - 283 K)

Simplifying this equation, we get:

n = 0.0467 mol

Substituting this value into the second equation, we get:

m = 0.0467 mol * 4 g/mol = 0.187 g

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(54.3 mi/hr) x (1609.344 meter/mi) x (1 hr/3600 sec) = 24.274 meters/sec

g = 9.81 m/s²

7g = 68.65 m/s²

Time = (24.274 m/s) / (68.65 m/s²)

Time = 0.354 second

wow

To determine the angle through which the wheel rotates in 1.00 second, we can start by finding the angle covered in 0.0710 seconds and then scale it up to 1.00 second.

In 0.0710 seconds, the wheel completes 3.10 revolutions. One revolution corresponds to an angle of 360 degrees or 2π radians. Therefore, in 0.0710 seconds, the wheel rotates through an angle of:

Angle = 3.10 revolutions * 2π radians/revolution = 6.20π radians

To find the angle in 1.00 second, we can use proportional reasoning. Since the time increases by a factor of 1.00/0.0710, the angle covered will also increase by the same factor:

Angle in 1.00 second = 6.20π radians * (1.00/0.0710) = 87.32π radians

Approximately, the angle through which the wheel rotates in 1.00 second is 274.39 radians.

Therefore, the wheel rotates through an angle of approximately 274.39 radians in 1.00 second.

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Answer:

1 cal/s =4.184w

p=50 cal/s =2093w

v=12v

P = V*I

I =P/V

I = 17.43 A

P =1²*R

R = P/I²

Answer:

The acceleration of an object depends directly upon the net force acting upon the object, and inversely upon the mass of the object.

Explanation:

As the force acting upon an object is increased, the acceleration of the object is increased. As the mass of an object is increased, the acceleration of the object is decreased.

The type of logical fallacy that Jonah has used is Hasty generalization. That is option D.

Logical fallacy is defined as those arguments that are based on false logics which may sound convincing but they are false.

Hasty generalisation is defined as the type of fallacy that is being made based on an insufficient evidence about another individual.

From the excerpt given, Jonah is a job seeker for the position of an editor of a school together with other applicants. He said that the other student who wants the position is a horrible writer.

There is no evidence to prove that the student is a bad writer therefore it's a Hasty generalization fallacy.

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Answer:

John has used Ad hominem as a logical fallacy.

What is Ad hominem?

A defect in logic is known as a logical fallacy. Political figures and the media frequently employ logical fallacies to deceive people. They are similar to mental tricks or illusions.

When someone making an argument criticizes their own circumstances or character rather than attempting to refute it, this is known as the ad hominem fallacy.

Ad hominem and allied argument types like tu quoque, ex concessis, ex aliquem, poisoning the well, guilt by association, ad feminam, and genetic fallacies are also addressed, with examples of both their fallacious and nonfallacious uses being given.

Despite the fact that ad hominem arguments have long been regarded as fallacies in logic, a recent research reveals that this is not necessarily the case.

Therefore, John has used Ad hominem as a logical fallacy.

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Explanation:

Answer:

0. 3 s

Explanation:

The motion of the boat is up and down in simple harmonic with amplitude of 20 cm . Time period of oscillation T = 3.5 s and top extreme  point  is at level with the boarding dock .

The traveller has to wait until the boat reaches middle point ( 1o cm . )  that is half  its equilibrium position of oscillation .

Time period is 3.5 s . During its oscillation from extreme top position to its half of the equilibrium position , that is 10 cm below the stationary dock ,  time taken by boat

t = T / 12 = 3.5 /12  = .3  s .

Man shall have to wait for a period of 0.3 s

Ans 0. 3 s .