In a double-slit experiment, the fourth-order maximum for a wavelength of 450nm occurs at an angle of θ=90 ∘
.
To eliminate all visible light in the fourth-order maximum, what least change is needed?

The force needed to accelerate a car at 5 m / s² that has a mass of 3,000 kg is 15 KN

F = m a

F = Force

m = Mass

a = Acceleration

m = 3000 kg

a = 5 m / s²

F = 3000 * 5

F = 15000 N

F = 15 KN

According to Newton's second law of motion, the force is equal to the rate of change of momentum of the object.

Therefore, the acceleration of the car is 15 KN

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Answer:

\(45 J\)

Explanation:

The equation for work is:

\(Work=Force*Distance\)

We can substitute the given values into the equation:

\(Work=15N*3m\\Work=45Nm\\Work=45J\)

Answer:

45 J

Explanation:

w =fd

w = 15(3)

Answer:

Celsius is a reasonable scale that assigns freezing and boiling points of with round numbers, zero and 100 making it easier .This makes it easy to calibrate instruments anywhere in the world.In Fahrenheit, those are, incomprehensibly, 32 and 212

Answer:

To strike or crash into with resounding impact. To collide or strike with great force. Used to indicate the sound of a forceful blow or collision.

Answer:

To strike or crash into with resounding impact. To collide or strike with great force. Used to indicate the sound of a forceful blow or collision.

Explanation:

Using the following rule:

Therefore:

Answer:

d. 2.14 x 10⁻⁴ kg/m³

Explanation:

Density is defined as the mass of an object per unit volume occupied by that object. The formula of density is, therefore, given as follows:

\(\rho = \frac{m}{V}\)

where,

ρ = density of platinum band = ?

m = mass of platinum band = 3 x 10³ kg

V = Volume displaced by Platinum band = 1.4 x 10⁷ m³

Therefore,

\(\rho = \frac{3\ x\ 10^{3}\ kg}{1.4\ x\ 10^{7}\ m^{3}}\\\\\rho = 2.14\ x\ 10^{-4}\ kg/m^{3}\)

Hence, the correct option is:

d. 2.14 x 10⁻⁴ kg/m³

Answer:

See Below

Explanation:

1: Thermal  Energy

2: Chemical Energy

3: Nuclear Energy

4: Electrical Energy

5: Radiant Energy

6: Light Energy

7: Motion Energy

8: Sound Energy

There are 8 types are energy that are above.

Hope this helps.

Answer:

To find the horizontal component, we multiply the magnitude of the vector by the cosine angle referenced to the horizontal. To find the vertical component, we do the same thing, but take the sine angle.

The force constant of the spring would be 50 N/m.

A spring is a deformable object whose linear length can be changed under the presence of force. It regains its original length after the force is removed.

When a spring is stretched by the length {x} due to an acting force {F}, then the following relation holds -

F = - kx

where {k} is spring constant.

Given is that a spring is stretched by 4cm by a mass of 200 g.

We know that -

F = - kx

|F| = |- kx|

200 = 4k

k = 50 N/m

Therefore, the force constant of the spring would be 50 N/m.

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The Fad,x, the x-component of the force exerted by the infinite wire on segment AD of the loop is 2.39 X 10⁻⁸ N. The Fbc,x, the x-component of the force exerted by the infinite wire on segment BC of the loop is 9.56 X 10⁻⁹ N. The Fnet,y, the y-component of the net force exerted by the infinite wire on the loop is zero.

1. The Fad,x, the x-component of the force exerted by the infinite wire on segment AD of the loop =

= Fad,x = u₀i₁i₂H / (2πL)

= Fad, x = [ (4π X 10⁻⁷)(0.672)(0.256) X (0.25) ] /2π X 0.36

= Fad,x= 2.39 X 10⁻⁸ N

2. The Fbc,x, the x-component of the force exerted by the infinite wire on segment BC of the loop =

= Fbc,x = u₀i₁i₂H / (2π) X (L+W)

= Fbc,x = (4π X 10⁻⁷)(0.672)(0.256)((0.25)/2π X (0.36+0.54)

= Fbc,x = 9.56 X 10⁻⁹ N

3. The Fnet,y, the y-component of the net force exerted by the infinite wire on the loop =

= Fnet,y = 0, since force acting on perpendicular wire is zero.

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Among the given options, cultural differences are most likely to be the centrifugal force within the EU in the future. The EU is a political and economic union of 27 member states, and cultural differences among its member states have always been present.

With the increasing number of immigrants from different parts of the world, the cultural differences among EU member states are becoming more prominent. Each member state has its unique language, history, customs, and traditions, which can create misunderstandings and conflicts among the member states.
The EU aims to promote unity and solidarity among its member states, but cultural differences can lead to a lack of understanding and trust between them. The EU's diverse cultural heritage is both a strength and a challenge for the union. The EU needs to find a way to respect the cultural diversity of its member states while maintaining its unity.
However, the cultural differences among the member states can still cause tensions and conflicts in the future. Therefore, it is crucial for the EU to continue to foster cultural awareness and understanding among its member states to maintain the union's cohesion and stability.

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complete question:

Which of these is most likely to be a centrifugal force within the EU in the future?

a. trade barriers

b. closed borders

c. pollution problems

d. cultural differences

Hi there!

\(\large\boxed{\text{B) 20 meters}}\)

We know that:

\(E_T = U + K\)

U = Potential Energy (J)

K = Kinetic Energy (J)

E = Total Energy (J)

At 10m, the total amount of energy is equivalent to:

U + K = 50 + 50 = 100 J

To find the highest point the object can travel, K = 0 J and U is at a maximum of 100 J, so:

100J = mgh

We know at 10m U = 50J, so we can solve for mass. Let g = 10 m/s².

50J = 10(10)m

m = 1/2 kg

Now, solve for height given that E = 100 J:

100J = 1/2(10)h

100J = 5h

h = 20 meters

Answer:

acceleration is the rate of change of the velocity of an object with respect to time. Accelerations are vector quantities. The orientation of an object's acceleration is given by the orientation of the net force acting on that object.

Explanation:

Calculating acceleration involves dividing velocity by time — or in terms of SI units, dividing the meter per second [m/s] by the second [s]. Dividing distance by time twice is the same as dividing distance by the square of time. Thus the SI unit of acceleration is the meter per second squared .

Answer:

4200N

Explanation:

Force = acceleration × mass

f=3.5×1200

f=4200

Answer:

Explanation:

Less than 45!

The angle that the string will make horizontally while Kinetic Energy and Potential Energy being equal of the sphere-Earth system would be:

C). Less than 45°

Given that,

Gravitational potential energy = 0

Mass = negligible

Since the body is released from the state of rest and the sphere is present its lowest point, the angle(θ) that it creates would be :

\(mgh =\) \(\frac{1}{2} mv^2\)                       (\(v = L,\) θ)

θ = less than 45°.

θ < 45°

Thus, option C is the correct answer.

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The period of the pendulum on Mars can be determined by using the formula for the period of a pendulum, which is given by:

T = 2π√(L/g)

Where T is the period, L is the length of the pendulum, and g is the acceleration due to gravity.

Since we are given the period on Earth (T_earth = 0.80 s), we can rearrange the formula to solve for the length of the pendulum on Earth:

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On earth a pendulum has a period of 0.80 s. if Gmars = 0.37 Gearth, So the period of the pendulum on mars is 1.424 seconds.

On Earth a pendulum has a period of 0.80 s.

Gmars = 0.37 GEarth.

We need to find the period of the pendulum on Mars. We know that,

T = 2π√(l/g)

where,

T is the time period of a pendulum, l is the length of the pendulum, and g is the acceleration due to gravity.

Substituting values,

Let l be constant on Earth and Mars.

l1 = l2 = lAl

so, g1 = GEarth and g2 = GMars = 0.37 GEarth.

T1 = 2π√(l/g1) and T2 = 2π√(l/g2)T2/T1 = √g1/g2= √(GEarth/GMars) (as T1 and l are constant)

T2/T1 = √(1/Gmars) [as GEarth/GMars = 1/0.37]T2/T1 = √(1/0.37)T2/T1 = 1.78

Time period of pendulum on Mars,

T2 = T1 × 1.78T2 = 0.8 × 1.78T2 = 1.424 s

Hence, the time period of the pendulum on Mars is 1.424 seconds.

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In a circuit with two identical components connected in parallel, the current which flows through its different branches will be different.

A parallel circuit can be defined as a type of circuit that comprises branches so that the current divides and only part of it flows through any branch.

In this type of circuit (parallel circuit) the voltage, or potential difference, across each branch of a parallel circuit is the same, but the currents may vary.

The main characteristics of parallel circuits include the follow;

Thus, a parallel circuit will have same voltage across the circuit components and different current flowing in each components.

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It is not possible to provide a qualitative comparison between objects a and b without knowing the specific quantities being compared.

To make a qualitative comparison, we need to know the specific attributes or characteristics being compared. Without this information, we cannot determine which object has a greater value. For example, if the quantities being compared are size, weight, or temperature, we would need the specific values for a and b to make a comparison.

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The traveler's weight on another planet whose radius is 3 times that of Earth and whose mass is 2 times that of Earth is 21.647 N

The following is the solution to the given problem:

Mass and gravity are related to one another. Gravity is generated by the planet's mass, and the magnitude of the gravitational force is determined by the mass of the planet on which the object is situated, as well as the mass of the object.

Mass, distance, and gravity are all factors that influence the gravitational force. Mass is directly proportional to the gravitational force and inversely proportional to the square of the distance from the gravitational force's center.

Here is the formula: Force of gravity = G(M1M2)/d²where, G is the gravitational constant 6.67 x 10^{-11} N(m/kg)^2, M1 is the mass of the first body, M2 is the mass of the second body, d is the distance between the centers of two bodies.

On earth, the traveler weighs 682 N. On another planet whose radius is 3 times that of Earth and whose mass is 2 times that of Earth, we have to calculate the traveler's weight.

Mass of Earth is 5.972 × 10^24 kg2,

Radius of Earth is 6.371 x 10^63.

The mass of the planet whose radius is 3 times that of Earth and whose mass is 2 times that of Earth.

Mass of the planet = 2 x mass of Earth = 2 x 5.972 × 10^24 kg = 1.1944 × 10^25 kg4.

The radius of the planet whose radius is 3 times that of Earth,

Radius of the planet = 3 x radius of Earth = 3 x 6.371 x 10^6 m = 1.9113 × 10^7 m5.

The distance between the two planets.

Distance between two planets = radius of planet + radius of Earth

= 1.9113 × 10^7 m + 6.371 x 10^6 m

= 2.54813 x 10^7 m

= 2.54813 x 10^10 cm.

Putting all the values in the formula.

Force of gravity = G (M1 M2) / d²

Where, Mass of the traveler on the other planet is m.

Mass of the Earth is M1 = 5.972 × 10^24 kg.

Mass of the other planet is M2 = 2 x 5.972 × 10^24 kg = 1.1944 × 10^25 kg.

Radius of the Earth is r1 = 6.371 x 10^6 m.

Radius of the other planet is r2 = 3 x 6.371 x 10^6 m = 1.9113 × 10^7 m.

Distance between the two planets is d = 2.54813 x 10^10 cm.682

= G (M1 M2)/d²

G = 6.674 × 10^-11 N m² / kg²

Force of gravity on other planet = G(mM2)/r² where m is the mass of the traveler on the other planet

= 6.674 × 10^-11 × (m × 1.1944 × 10^25)/(1.9113 × 10^7)²

Weight on another planet = force of gravity on another planet × mass of the traveler on another planet

= (6.674 × 10^-11 × (m × 1.1944 × 10^25)/(1.9113 × 10^7)²) × m

= 21.647 N (approximately)

Therefore, the traveler's weight on another planet whose radius is 3 times that of Earth and whose mass is 2 times that of Earth is 21.647 N (approximately).

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Answer:

v = 6.95 m/s

Explanation:

Given that,

A diver is on a board 1.80 m above  the water, s = 1.8 m

The initial speed of the diver, u = 3.62 m/s

Let v is the speed with which she hit the water. It will move under the action of gravity. Using the equation of motion as follows :

\(v^2-u^2=2gs\\\\v=\sqrt{u^2+2gs} \\\\v=\sqrt{(3.62)^2+2(9.8)(1.8)} \\\\v=6.95\ m/s\)

So, she will hit the water with a speed of 6.95 m/s.

We are asked to determine the magnitude of the force that acts parallel to the nail. To do that we will add the torque that acts on the point of contact. First, we draw a free-body diagram of the situation:

We have decomposed the force of the nail into its horizontal and vertical components. The horizontal component does no torque since there is no distance parallel to the force to the point of contact.

Now, we add the torques. We consider counterclockwise as positive:

Since we consider the moment before there is no angular acceleration the sum of torques adds up to zero:

Now, we determine the value of Ry as a function of "R" using the trigonometric function cosine:

Now, we multiply both sides by "R":

Now, we substitute in the sum of torques:

Now, we solve for "R". First, we add "30F" to both sides:

Now, we divide both sides by 5cm:

Now, we divide both sides by cosine:

Now, we substitute the values:

Solving the operations:

Therefore, the force on the nail is 1042.8 Newtons.

5.3 km

This question involves continuous displacement in various directions. When it becomes difficult to imagine, vector analysis becomes handy.

Let us denote each of the individual displacements by a vector. Consider the unit vectors as the unit vectors in the direction of East and North respectively.

By simple calculations, we can derive the unit vectors j,\(\frac{-i-j}{2}\) and in the directions North,  South of West, and  North of West respectively.

So Total displacement vector = The Sum of individual displacement vectors.

Displacement vector = -4.25i + 3.165j

The magnitude of Displacement =| -4.25i + 3.165j |  = 5.3km

∴ Total displacement = 5.3km

A displacement is a vector in geometry and mechanics that have a length equal to the shortest distance between a point P's initial and final positions.  It measures the length and angle of the net motion, or total motion, in a straight line from the starting point to the destination of the point trajectory. The translation that links the starting point and the ending point can be used to spot a displacement.

The final location xf of a point relative to its beginning position xi, or a relative position (derived from the motion), is another way to express a displacement. The difference between the final and initial coordinates can be used to define the equivalent displacement vector.

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Answer:

the weight of the large stone is greater than a small one

Explanation:

because the large stone has greater mass then the small stone.therefore it is difficult to lift the large stone on the surface of the earth but easy to lift the small one

A young, single, and childless person might buy life insurance if they have a personal or family history of medical problems that could potentially disqualify them from coverage later on when there is a need for it, the given statement istrue because life insurance premiums are generally lower for younger individuals, and securing coverage early can provide financial protection in the future.

Many people assume that life insurance is only necessary when they have dependents or when they are older, but this is not always the case. Some medical conditions, such as cancer, heart disease, or diabetes, can make it difficult to get coverage later on. By purchasing life insurance while they are young and healthy, individuals can ensure that they have coverage in place for any future needs.

Additionally, purchasing life insurance when young can help lock in lower premiums and ensure financial security in the event of an unexpected death. However, it is important to carefully consider the costs and benefits of life insurance before making any decisions. So therefore by purchasing life insurance early, this individual can ensure that they have coverage in place should they require it later in life, such as when starting a family or when a medical condition arises, this proactive approach can also provide peace of mind and financial security for the policyholder and their future dependents.

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Answer:

mass= 0.05kg

v=6m/s

pi=mvi=0.05*6=0.3kgm/s

p1f=0.3kgm/s

p2f=0.3kgm/s

p1f-p1i=0.3-0.3=0.6kgm/s

p2f-p2i=0.3(0.3) =0.6kgm/s

it was in opposite directions

Answer:

hey I am in class 6 why did you ask

The star Polaris, also known as the North Star or Pole Star, is located above Earth's axis in the northern hemisphere.

Polaris holds a special position in the night sky because it appears almost stationary while other stars appear to rotate around it. This is due to its close alignment with the Earth's rotational axis, making it appear fixed above the North Pole. As a result, Polaris serves as a reliable navigational tool for observers in the northern hemisphere. Its position can be used to determine true north, aiding in navigation, timekeeping, and astrometry.

The reason for Polaris's alignment with Earth's axis lies in the phenomenon called axial precession. Over long periods of time, Earth's rotational axis traces out a circular path due to gravitational interactions with other celestial bodies. Currently, Polaris happens to be the closest visible star to the North Celestial Pole, making it the star above Earth's axis in the northern hemisphere. However, it is important to note that due to this precession, the role of the North Star has changed throughout history, and in approximately 26,000 years, another star, Vega, will take its place as the North Star.

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Explanation:

The bottom of the block is 0.1365 meters (or 13.65 centimeters) below the interface between the two liquids.

Answer:

The golf ball has a constant velocity

Explanation: