Lab: Waves and Diffraction
Assignment: Lab Report
Anyone have this completed

Answer:

High water level during a tide is called High tide.

Low water level during a tide is called Low tide.

To determine the pipe diameter at which transition to turbulence occurs for the given flow rate of water, we can use the Reynolds number. When the Reynolds number exceeds a certain critical value, the flow transitions from laminar to turbulent.

The Reynolds number (Re) is calculated as the ratio of the inertial forces to the viscous forces in the flow. It is given by the equation:

Re = (ρ * V * D) / μ

Where Re is the Reynolds number, ρ is the fluid density, V is the fluid velocity, D is the pipe diameter, and μ is the fluid viscosity.

To determine the critical Reynolds number for transition to turbulence, empirical correlations and experimental data are used. For a smooth pipe, the critical Reynolds number is typically around 2000.

Given the flow rate of 0.06 m³/h, we need to convert it to the appropriate units.

0.06 m³/h is equal to 0.06 m³/h * (1/3600 h/s) * (1000 L/m³) = 0.0167 L/s

Assuming a water temperature of 20°C, the viscosity of water is approximately 0.001 Ns/m². Substituting the values into the Reynolds number equation:

Re = (1000 kg/m³ * 0.0167 m³/s * D) / (0.001 Ns/m²)

Re = 16.7 D

To determine the pipe diameter at which transition to turbulence occurs (Re = 2000), we can solve the equation:

2000 = 16.7 D

Solving for D, we find D ≈ 2.5 cm.

Therefore, the pipe diameter at which transition to turbulence occurs for the given flow rate of water is approximately 2.5 cm, corresponding to option (d).

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To calculate the kinetic energy of the block at point C, we can use the conservation of mechanical energy. At point A, the block has only potential energy, which is equal to its gravitational potential energy. At point C, the block has both kinetic and potential energy.

The potential energy at point A is given by:  A Since the block is released from rest, its initial height h_A is equal to the height of the bowl, which is R. The mass of the block m is given as 200 g, and the acceleration due to gravity g is approximately 9.8 m/s^2. PE_A = (0.2 kg) * (9.8 m/s^2) * (0.30 m) = 0.588 J At point C, the block has both kinetic and potential energy.

The height h_C at point C can be determined by considering the geometry of the situation. The vertical distance from the top of the bowl to point C is equal to the radius R, so h_C = 2R. Finally, the kinetic energy at point C is given by:
KE_C = Total mechanical energy at point C - Potential energy at point C The total mechanical energy at point C is equal to the sum of the kinetic and potential energy: Total mechanical energy at point C = KE_C + PE_C Since the block is released from rest at point A, its total mechanical energy is equal to its potential energy at point A: Total mechanical energy at point C = PE_A = 0.588 J The negative value for the kinetic energy indicates that the block has no kinetic energy at point C.

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The kinetic energy of the block at point (C) can be calculated using the formula KE = 1/2 * m * v^2, where m is the mass of the block and v is its velocity. Since the block is released from rest, its initial velocity is 0. As it moves along the horizontal diameter of the bowl, it accelerates due to gravity, and its velocity increases. At point (C), the block will have reached its maximum velocity.

To find the maximum velocity, we can use the principle of conservation of mechanical energy. The potential energy at point (A) is equal to the kinetic energy at point (C). The potential energy at point (A) can be calculated using the formula PE = m * g * h, where g is the acceleration due to gravity and h is the height from point (A) to the reference point. In this case, the reference point can be chosen as the bottom of the bowl, so the height h is equal to the radius of the bowl, R.

Now, substituting the given values into the formulas:
PE(A) = m * g * R
KE(C) = PE(A) = m * g * R

Given that m = 200 g = 0.2 kg, g = 9.8 m/s^2, and R = 0.30 m, we can calculate:
PE(A) = 0.2 kg * 9.8 m/s^2 * 0.30 m = 0.588 J
KE(C) = 0.588 J

Therefore, the kinetic energy of the block at point (C) is 0.588 Joules, and the potential energy at point (C) is also 0.588 Joules.

In conclusion, the block's kinetic energy and potential energy at point (C) are both 0.588 Joules.

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Answer:

Applied Force.

Gravitational Force.

Normal Force.

Frictional Force.

Air Resistance Force.

Tension Force.

Spring Force.

Explanation:

:)

5 Kg will have a greater acclaration thus it will strike before 1 kg ball.

There are two cases

(Assuming same shape of both objects)

Without air

With air

Without air, In this case they will fall on ground at same exact time.

Because earth will give an equal acclaration to both the masses.

With air

In this case they will have force of M×g ('M' is their respective mass of each)

but impulsive force is constant so it will give different acclaration to both masses that will be :-

M×a = M×g - I(n)

(Here 'a' is acclaration 'I(n)' is impulsive force by the normal of air particle as they collide with the masses)

Thus :-

a = g - (I÷M)

As mass increase acceleration will be less decreased so

5 Kg will have a greater acclaration thus it will strike before 1 kg ball.

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When you apply heat to a solid object, such as a rock, you are indeed adding kinetic energy to its particles. However, this kinetic energy doesn't cause the object to move as a whole. Here's why:

1. Molecular structure: In a solid object, the particles (atoms or molecules) are held together by strong intermolecular forces. These forces maintain the object's shape and structure, restricting the motion of the particles.

2. Vibrational motion: When you apply heat to a solid object, the kinetic energy of its particles increases. However, this increase in energy mainly results in the particles vibrating more vigorously around their fixed positions, rather than moving freely or causing the object to move as a whole.

3. Energy distribution: The added kinetic energy is distributed among the particles in the form of thermal energy, which raises the temperature of the object. This increase in temperature doesn't create an external force that would cause the entire object to move.

In summary, when you heat a solid object like a rock, you're adding kinetic energy to its particles. However, due to the strong intermolecular forces and the resulting vibrational motion, this added energy doesn't cause the entire object to move. Instead, the kinetic energy is distributed among the particles, raising the object's temperature.

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By calculating, a) frequency = 100 Hz b)wavelength = 4 cm  C )Speed = 400 cm/s d) Amplitude =  2 cm e)period = 0.01 s f)wave number  = 0.5π  g)angular velocity = 200π. ​

Given in question

Y = 2 sin π (0.5x - 200t)

Y = 2 sin (0.5πx - 200πt)

Comparing it with the standard form of a wave equation:

Y = Asin (kx - ωt) where

A= amplitude

K = wave number = 2π/λ where λ = wavelength

ω = Angular velocity = 2πf where f = frequency

We get

a) 2πf = 200π

    f = 100 Hz

b) 2π/λ =0.5π

   λ = 2π/0.5π

   λ = 4 cm

c) Speed v = ω/k

v = 200π/0.5π

v = 400 cm/s

d) A= amplitude = 2 cm

e)  period = 1/f = 0.01 s

f) K = wave number = 0.5π

g) ω = Angular velocity = 200π

Therefore, by comparing  a) frequency = 100 Hz b)wavelength = 4 cm  C )Speed = 400 cm/s d) Amplitude =  2 cm e)period = 0.01 s f)wave number  = 0.5π  g)angular velocity = 200π. ​

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When high voltages are present, a glow may be seen around sharp points, known as corona discharge.

This glow is caused by the ionization of the air molecules near the sharp point due to the electric field strength. The ionized air molecules emit light, creating a visible glow. The intensity and color of the glow depend on the voltage level and the gas composition of the surrounding environment.

Corona discharge is a phenomenon that occurs when high voltages are applied to a conductor, especially in the presence of a sharp point or a high electric field. It results in the ionization and excitation of the surrounding air molecules, creating a glowing or visible aura of light around the conductor. The ionized air can also produce a hissing or crackling sound. Corona discharge is often observed in high-voltage power lines, antennas, and other high-voltage equipment. It is important to note that corona discharge can cause power loss and interfere with the proper functioning of electrical systems, so efforts are made to minimize its occurrence in high-voltage applications.

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Answer:

I can't read it if you zoom in its still blurry

Explanation:

read the question to me and I'll try to answer it thx

Answer:

The average force has a magnitude 6524 N due north.

Explanation:

The average net force F = ma where m = mass of car = 1400 kg and a = acceleration.

a = (v - u)/t where u = initial velocity of car = 0 m/s (since it starts from rest)

v = final velocity of car = 27 m/s due north and t = time of motion = 5.8 s

a = (27 m/s - 0 m/s)/5.8 s = 27 m/s ÷ 5.8 s = 4.66 m/s

Since the direction of the velocity change is the direction of the acceleration, the acceleration is 4.66 m/s due north.

The average force, F = ma = 1400 kg × 4.66 m/s = 6524 N

Since the acceleration is due north, the average force takes the direction of the acceleration.

So the direction of the average force is due north

The average force has a magnitude 6524 N due north.

The temperature for the blood that keeps longer is 120 K.

Temperature is a physical property of matter that quantitatively expresses the common notions of hot and cold. It is the measure of the thermal energy present in a system and is an intensive property, meaning that it is independent of the amount of material in the system. Temperature is measured in various scales, including Celsius, Fahrenheit, Kelvin and Rankine. At the molecular level, temperature is determined by the amount of thermal energy emitted from the particles in the system. In a solid, this thermal energy is transferred through the lattice structure, while in a gas, it is transferred through collisions between particles.

This is because -160°C on the Celsius scale is equivalent to 113 K on the Kelvin scale, and 4°C on the Celsius scale is equivalent to 277 K on the Kelvin scale. Therefore, the temperature of 120 K is the one that keeps the blood safe for the longest period of time.

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Answer:

1.) h = 164.8 m

2.) U = 49.1 m/s

3.) t = 1.43 seconds

Explanation:

1.) A soccer ball is dropped from the top of a building. It takes 5.8 seconds to fall to the ground. The height of the building is...? 

Since the soccer ball is dropped from the building, the initial velocity U will be equal to zero

Using second equation of motion

h = Ut + 1/2gt^2

Substitutes the time into the formula

h = 1/2 × 9.8 × 5.8^2

h = 164.8 m

2. The Falcon 9 launches to a height of 123 meters. What is its vertical initial velocity?

At maximum height final velocity = 0

Using the third law of motion

V^2 = U^2 - 2gH

0 = U^2 - 2 × 9.8 × 123

U^2 = 2410.8

U = 49.1 m/s

3. An apple falls from rest off a 10.m m tree. How long will it take before it hits the ground?

Since the apple fall from rest, the initial velocity U will be equal to zero

Using the second equation of motion,

h = Ut + 1/2gt^2

substitute all the parameters into the formula

10 = 1/2 × 9.8 × t^2

10 = 4.9t^2

t^2 = 10/4.9

t^2 = 2.04

t = 1.43 seconds

Answer:

la instalación insignia de la astronomía terrestre europea a principios del tercer milenio

Explanation:

necesitas poner las cosas en inglés porque hay mucha gente aquí que habla inglés

The maximum insolation occurs around midday, while the maximum daily temperature lags behind due to the balance between incoming solar radiation and outgoing terrestrial radiation, known as net radiation.

The maximum insolation, or incoming solar radiation, usually occurs around midday when the sun is at its highest point in the sky. This is because the sun's rays have the shortest path through the Earth's atmosphere, resulting in maximum solar radiation reaching the surface.

The maximum daily temperature, on the other hand, generally occurs a few hours after the time of maximum insolation. This lag can be attributed to net radiation, which is the balance between incoming solar radiation and outgoing terrestrial radiation.

During the day, the Earth's surface absorbs a significant amount of solar radiation, causing the surface temperature to rise. However, after the maximum insolation, the Earth's surface starts losing heat through terrestrial radiation. This leads to a decrease in net radiation, causing the temperature to gradually drop.

The lag in maximum temperature is due to the time it takes for the Earth's surface to reach thermal equilibrium after receiving maximum solar radiation. It takes some time for the absorbed heat to be fully released through terrestrial radiation, resulting in a delay in reaching the maximum daily temperature.

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Answer:

Explanation:

The kinetic energy of an object can be found by using the formula

\(k = \frac{1}{2} m {v}^{2} \\ \)

m is the mass

v is the velocity

From the question we have

\(k = \frac{1}{2} \times 9 \times {12}^{2} \\ = \frac{1}{2} \times 9 \times 144 \\ = 9 \times 72 \: \: \: \: \: \: \: \: \: \: \: \)

We have the final answer as

Hope this helps you

Answer:

Plants and animals that live in a biome must be able to live and reproduce in the conditions

Explanation:

Answer:

a cast is something that holds a item in place weather it be a iron sword or a broken arm. a cast is made by hollowing out the inside and placing your item in it.

Explanation:

The scientist that described an atom made a solid positively charged substance with electrons dispersed throughout it was: Ernest Rutherford.

In 1911 Ernest Rutherford proposed his atomic model in which he considered the atom as a positively, densely charged center called a nucleus in which the electrons circulate around the core with a negative charge.

He was responsible for many discoveries in the radioactivity's  fields and nuclear physics.

The atom is the smallest part of the composition of matter, it is indivisible and is composed of a nucleus that has protons and neutrons, and around the nucleus there are the electrons.

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Answer:

from the cup to the hand

Explanation:

Heat present one body transfer to the other less heat body or cold body through physical contact is called conduction. The temperature of the cup is higher which is 90°C whereas the temperature of the hand is 36°C so difference between temperature of both bodies causes conduction of heat energy from hotter body to cold body so we can conclude that the heat energy will transfer from the cup to the hand.

Answer:

B.

Explanation:

The age of the universe in a flat universe, based on the given values, is approximately 3.454 × 10^16 seconds or approximately 1.094 billion years.

To calculate the age of the universe based on the observed recession velocity and assuming a flat universe, we can use the Hubble's Law equation:
v = H₀ × d
where:
v is the recession velocity of the galaxy,
H₀ is the Hubble constant, and
d is the distance to the galaxy.
The Hubble constant is the rate at which the universe is expanding and is typically expressed in units of km/s per megaparsec (km/s/Mpc).
Rearranging the equation, we can solve for time (t), which represents the age of the universe:
t = 1 / H₀
Given that the recession velocity (v) is 894 km/s and the distance (d) is 12 Mpc, we can substitute these values into the equation:
t = 1 / (894 km/s / 12 Mpc)
Converting the units to consistent values:
t = 1 / (894 km/s / 3.09 × 10^19 km/Mpc)
Evaluating the expression:
t = 1 / (2.897 × 10^−17 s^−1)

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The largest measurement is 10 km, followed by 10 m, 10 cm, 10 mm, and finally 10 nm as the smallest measurement.

To order these length measurements from largest to smallest. Here's the ordered list:

1. 10 km (10,000 meters)
2. 10 m (10 meters)
3. 10 cm (0.1 meters)
4. 10 mm (0.01 meters)
5. 10 nm (0.00000001 meters)

An object or event's attributes are quantified through measurement so that they can be compared to those of other things or occurrences. Measurement, then, is the process of establishing how big or little a physical quantity is in relation to a fundamental reference quantity of the same kind.

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The correct option is option e) cross product

The cross-product is a new way of "multiplying" two vectors. It results in a new vector that is perpendicular to both the original vectors and its magnitude is given by the area of the parallelogram formed by the two original vectors.

In three-dimensional space, cross-product is a binary operation on two vectors. It yields a vector perpendicular to both vectors. a b represents the vector product of two vectors, a and b. Its resulting vector is parallel to a and b. Cross goods are another name for vector products.

The cross-product has four basic applications:

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The correct option is B, A geranium is an example of a broad-leaved plant.

Geranium is a common name used for a group of plants in the family Geraniaceae. In chemistry, the term geranium is also used to refer to a class of organic compounds known as geraniols. Geraniols are terpene alcohols that have a rose-like odor and are used extensively in the fragrance industry.

Geraniols are present in many essential oils, including rose, lemon, and citronella oils. They are also found in geranium oil, which is extracted from the leaves and stems of geranium plants. Geranium oil is used in aromatherapy, skincare products, and perfumes due to its pleasant fragrance and potential therapeutic benefits. Geraniols have been studied for their various biological activities, including antimicrobial, anti-inflammatory, and anticancer effects.

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Answer:

30 miles per hour or 0 miles per hour

The maximum possible efficiency of an engine operating between the given two temperatures is 10.38%.

Maximum efficiency that is obtained when the heat engine is operating between two temperatures is called Carnot Efficiency.

The efficiency of heat engines generally increases with the operating temperature. Advanced structural materials that helps engines to operate at higher temperatures is an active area of research.

The efficiency of Carnot engine = 1

No engine has 100 % efficiency as per the Kelvin Planck statement. Sink temperature is always  less than the source temperature, therefore  of Carnot cycle efficiency becomes less than 100 %.

Given T1 = 35°C , T2= 3°C

Efficiency =( (T1 - T2)/T1) × 100

T1= 35+273 = 308 K

T2 = 3 +273= 276 K

Efficiency = ( 308 - 276)/308×100

=( 32×100)/308

Efficiency = 10.38 %

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The value of speedmph after calling the function calculatemph, given that distancemiles equals 1870, timesecs equals 343440, and speedmph equals 55.0, cannot be determined without further information.

The function calculatemph is not defined, and there is no information provided about how it operates or what its purpose is. Without knowing the specific calculations or transformations performed by the calculatemph function, it is not possible to determine the resulting value of speedmph after calling it.

To determine the value of speedmph after calling calculatemph, we would need additional information about the function's implementation or any relationships between the given variables. Without this information, it is not possible to provide a specific answer.

If more details or the actual implementation of calculatemph were provided, it would be possible to analyze the function and determine its effect on the value of speedmph.

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Fact: Parking a car on a cliff? That is unsafe and probably also illegal.

Answer: 0.18 m/s

Explanation:

This is a conservation of momentum problem.  Total momentum before the collision must equal the total momentum after the collision.  

Momentum = p = mv

let x = velocity of the second marble after the collision

(0.15 kg)(2.5 m/s) + (0.25 kg)(-3.0 m/s) = (0.15 kg)(-2.8 m/s) + (0.25 kg)(x)

-0.375 kg·m/s = -0.42 kg·m/s + (0.25 kg)x

(0.25 kg)x = (0.42 - 0.375) kg·m/s =  0.045 kg·m/s

x =  (0.045 kg·m/s) / (0.25 kg) = 0.18 m/s

Answer:

I. when no net external force act on the system

Explanation:

Suppose you are exerting an external force F on an object, it's velocity keeps increasing. Which means its momentum = velocity * mass is also increasing. In this case the initial momentum of that object is not preserved (but increased).