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In a Young's double-slit experiment, the fringes are formed due to interference of the light waves. The wavelength of the light used in the experiment is 360 nm.

The distance between two adjacent fringes is given by the equation d(sinθ) = mλ, where d is the separation between the two slits, θ is the angle of the fringe with respect to the central maximum, m is the order of the fringe, and λ is the wavelength of the light.

In this problem, we are given that the fringes are 1.0 mm apart and the slit separation is also 1.0 mm.

Since the distance from the double slit to the screen is 1.8 m, we can assume that the angle θ is small, so we can use the small-angle approximation sinθ ≈ θ.

Substituting the given values in the equation, we get \(1.0 * 10^{-3} = (1.8/\theta) * \lambda\).

Solving for λ, we get λ = \(3.6 * 10^{-7}\) m or 360 nm.

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Answer:

B

Explanation:

if the object has momentum it can be any other answer except at rest. if it's at rest, it does not have momentum

The two thermometers on a sling psychrometer yielding the same temperature after the proper wet bulb measuring procedure indicates that the relative humidity is 100%, meaning the air is saturated with moisture and cannot hold any more.

A sling psychrometer is a device used to measure relative humidity.

It consists of two thermometers, one of which is a wet bulb thermometer that is covered with a wet wick. As the moisture on the wick evaporates, it cools down the thermometer.

The other thermometer is a dry bulb thermometer that is not covered with any wet material.

The two thermometers are then swung around in the air using a handle, allowing the evaporative cooling to take effect.
When the two thermometers on the sling psychrometer yield the same temperature, it indicates that the air is saturated with moisture and the relative humidity is 100%.

This means that the air cannot hold any more moisture, so any additional moisture will condense into visible water droplets.

Summary: The two thermometers on a sling psychrometer yielding the same temperature after the proper wet bulb measuring procedure indicates that the relative humidity is 100%, meaning the air is saturated with moisture and cannot hold any more.

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Answer:

 W = 500 J

Explanation:

Work is defined by

         W = F . x

if we develop the dot product

         W = F x cos θ

where is the angle between the force and the displacement, in this case the angle is zero, so cos 0 = 1

          W = F x

indicate that each person applies a force of 500 N, so the total force is

         F = 1000 N

let's reduce the distance to the SI system

          x = 50 cm = 0.50 m

let's calculate

          W = 1000 0.50

          W = 500 J

Answer:

Car's touch area = 64 m²

Explanation:

Given:

Weight of car = 3,072 N

Pressure = 48 pa

Find:

Car's touch area

Computation:

Area = Force / Pressure

Car's touch area = 3,072 / 48

Car's touch area = 64 m²

The L'Hospital's rule states that if two functions tend to the same limit, then their derivatives also tend to the same limit. In the case of the pulley problem, when the system reaches equilibrium, the value of x is the limit of the ratio of the forces acting on the pulley.

To solve this problem, we need to use L'Hopital's Rule, which states that if the limit of the ratio of two functions f(x) and g(x) is in the form of 0/0 or ∞/∞, then the limit of the ratio can be found by taking the derivative of both functions and finding the limit of the new ratio. In this case, we are given the equation: f(x) = g(x) Taking the derivative of both sides gives us:

Now we can plug in the values for f(x) and g(x) and solve for x:

Setting the two derivatives equal to each other and solving for x gives us:

Therefore, when the system reaches equilibrium, the value of x is 2.

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A piece of metal would make a better reflector than a piece of wood because metals are good conductors of electricity.

A piece of metal is a better reflector compared to wood because it has a much higher conductivity, which results in a higher reflectivity. Metals have free electrons that are not bound to individual atoms, allowing them to respond to electromagnetic waves and reflect them back. Wood, on the other hand, is an insulator, meaning it does not conduct electricity or reflect electromagnetic waves as efficiently as metal.

Additionally, metal surfaces are usually smooth and flat, which allows them to reflect light or electromagnetic waves more efficiently, as the wave front remains more organized and less dispersed. Wood surfaces, on the other hand, tend to be rough and irregular, which can scatter the incoming light or electromagnetic waves, reducing their reflectivity.

In conclusion, metal is a better reflector than wood because of its higher conductivity, ability to respond to electromagnetic waves, and smoother surface.

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Answer: The rain

Explanation: I would say the rain has caused it because worms do come above ground after it rains because the ground is moist. HOPES THIS HELPS:)

Answer: Wet mud in the ground because they come up from the ground when its wet

Explanation:

Answer:  true

Explanation:

Answer:

the answer is true answer true

Answer:

An archers bow that is drawn back

Answer:

A)a diver standing on a diving platform.

REQUESTS/REQUIERMENTS:

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The mass defect of Fe -56 atom with a mass of 55.921 amu and having 26 protons and 30 neutrons is  0.52823 amu.

Mass defect is the difference in the original mass of the atom from the mass added by the mass of protons and neutrons. Let Mp be the mass of protons and Mn that of neutrons and mass of electrons is negligible.

mass defect Δ M = [Z Mp + (A-Z) Mn )] - Matom

Given mass of protons Mp = 1.00728 amu

Mn = 1.008665 amu.

Number of protons = 26 and neutrons = 30

Then, Δ M = [(26 ×1.00728 amu) + (30 ×1.008665 amu )] - 55.921 amu

                 =  0.52823 amu.

Hence, the mass defect of Fe- 56 is  0.52823 amu.

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The conservation of momentum P states that the amount of momentum remains constant when there are not external forces.

We don't have external forces, so:

\(P_0 = P_1\\m_bv_{0b}+m_pv_{0p}=m_bv_{1b}+m_pv_{1p}\\\)

Where:

Solving for v0b:

\(v_{0b} =\dfrac{m_bv_{1b}+m_pv_{1p}- m_pv_{0p}}{m_{b}}\\\\v_{0b} =\dfrac{(7\;kg)(4\;m/s)+(2\;kg)(6\;m/s)- (2\;kg)(0 \;m/s)}{7\;kg}\\v_{0b}=\dfrac{40}{7}\;m/s\\\\\boxed{v_{0b}\approx5.71\;m/s}\)

The original velocity of the ball is 5.71 m/s.

The principle of conservation of momentum: In a closed system, The total momentum before collision is equal to total momentum after collision.

From the principle of conservation of momentum,

MU+mu = MV+mv.................... Equation 1

Where M = mass of the bowling ball, m = mass of the pin, U = initial velocity of the bowling ball, u = initial velocity of the pin, V = final velocity of the bowling ball, v = final velocity of the pin.

From the question,

Given: M = 7 kg, m = 2 kg, u = 0 m/s (at rest), v = 6.0 m/s, V = 4 m/s.

Substitute these values into equation 1 and solve for U

7(U)+2(0) = 7(4)+2(6)

7U = 28+12

7U = 40

U = 40/7

U = 5.71 m/s.

Hence, The original velocity of the ball is 5.71 m/s.

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Answer:

78.2 m/time

Explanation:

Wavelength =Speed/Frequency

Speed = 46 x 1.7 =78.2 m/time.

Answer:

  1.9 km​

Explanation:

The equation for vertical motion is ...

  h(t) = -4.9t^2 +26t +20

This will have a zero near t = 5.988 seconds.*

The horizontal distance traveled in that time is ...

  (310 m/s)(5.988 s) ≈ 1856 m ≈ 1.9 km

_____

* The root of a quadratic can be found numerous ways. We choose the quick and easy: let a graphing calculator show it to you.

The distance of dodo is 150 cm.

The distance between a lens's center and its focal point is its focal length. A focal point is a location on the principal axis where, following refraction via the lens, light rays parallel to the principal axis either actually meet or appear to meet.

Given parameters:

the focal length of David's lens is: f = 50 cm.

magnification is: m = -0.50

We have to find: distance of dodo, that is, object's distance : u = ?

We know that:

u =f( 1/m -1)

⇒ u = 50(-1/0.50-1) = - 150 cm.

Hence, distance  is 150 cm.

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Answer:

true

Explanation:

By adding a thin layer of oil or even water between two objects, you convert the sliding friction to fluid friction.

"Scientific evidence for warming of the climate system is unequivocal."

Organisms such as diatoms, forams, and coral) can obey useful climate proxies. Other proxies involve ice cores climate, tree rings, and sediment cores. Chemical deputy records include isotope ratios, elemental examination, biomarkers, and biogenic silica.

Climate analyzers use every possible direct and indirect compilation to study the full history of Earth's climate, ice cores drawn from Greenland, Antarctica, and tropical mountain glaciers appear that Earth's climate greets to changes in greenhouse gas levels.

So we can conclude that Climate change is most usually measured using the average surface temperature of the planet.

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The momentum of the water balloon at the given speed is 7.2 kgm/s.

The given parameters:

The momentum of the water balloon is calculated as follows;

P = mv

Substitute the given values of mass and velocity as follows;

P = 0.4 x 18

P = 7.2 kg m/s.

Thus, the momentum of the water balloon at the given speed is 7.2 kgm/s.

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Answer:

it is becuase light travel faster then sound thus light come to us first

Explanation:

to dlatego, że światło podróżuje szybciej niż dźwięk, to światło dociera do nas jako pierwsze

Answer:

225 meters

Explanation:

45*5 or 225 meters.

Hope this helps plz hit the crown :D

Answer:

20 hours

Explanation:

if the truck travels 110 miles in one hours, 110 times 20 equals 2,200.

another way is- 2,200 divided by 110 = 20 hours.

Answer:

this is because the light rays get reflected irregularly

Explanation:

Answer:

Explanation:

From Newton's 2nd law of motion,

F=ma

10.5=45 * a

a=10.5/45 = 0.23 m/s^2

Answer:

The first option, "The more mass an object has, the greater the gravitational pull. "

Explanation:

Newton's Law of Gravity states that \(F_G=\frac{Gm_1m_2}{r^{2}}\), where G is the gravitational constant, \(m_1\) and \(m_2\) are the masses of the two objects, and r is the distance between the objects' centers. Because the objects' masses are in the fraction's numerator, they are directly proportional to \(F_G\), and increasing the mass of one or both objects increases the gravitational pull.

Please have a great day! I hope this helps you understand the question!

Answer:

\(power \: = \frac{energy}{time} \\ = \frac{mgh}{t} \\ = \frac{ml {t}^{ - 2}l }{t} \\ = m {l}^{2} {t}^{ - 3} \\ thank \: you\)

Answer:

Most likely Mass

Explanation:

Could be wrong ‍♂️

Answer:

An object at rest has zero velocity - and (in the absence of an unbalanced force) will remain with a zero velocity. Such an object will not change its state of motion (i.e., velocity) unless acted upon by an unbalanced force.

Explanation:

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The equation V = √(3kT/m) relates the root-mean-square velocity of gas particles to their mass and temperature.

The given formula V = √(3kT/m) is related to the root-mean-square speed (Vrms) of gas particles.

Here's the explanation of the terms:
V: The root-mean-square speed (Vrms) of gas particles
â: Square root symbol (â = √)
3: A constant value in the formula
k: Boltzmann's constant (\(1.38 * 10^-23 J/K\))
T: Temperature of the gas in Kelvin
m: Mass of a single gas particle.
To find the root-mean-square speed (Vrms) of gas particles, follow these steps:
Identify the values of temperature (T), Boltzmann's constant (k), and mass of a single gas particle (m).
Multiply the temperature (T) by Boltzmann's constant (k) and the constant value 3.
Divide the result from step 2 by the mass of a single gas particle (m).

Take the square root of the result from step 3.
That will give you the root-mean-square speed (Vrms) of the gas particles.

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