A wave is sent down a thick rope that is attached to a thinner rope. What happens when the wave reaches the junction? Explain in words, or draw a diagram.

Answer:

S = θ R      where S is the arc length and θ the arc length in radians

S = 2.5 ft * 4 π^3 rad = 2.5 * 124 = 310 ft       (1 radian = 2.5 ft)

Assuming 4π3 means 4π^3

The Reagan travel over an angle of 4π/3radians is 10.47 or 10 feet if the Reagan rides on a playground roundabout with a radius of 2. 5 feet.

It is defined as the combination of points that and every point has an equal distance from a fixed point ( called the center of a circle).

We have Reagan rides on a playground roundabout with a radius of 2.5 feet.

We know the relation between arc length and radius of the circle:

S = R∅

Here R = 2.5 feet, and central angle ∅ = 4π/3

\(\rm S = 2.5\times \frac{4\pi}{3}\)

S = 10.47 feet ≈ 10 feet

Thus, the Reagan travel over an angle of 4π/3radians is 10.47 or 10 feet if the Reagan rides on a playground roundabout with a radius of 2. 5 feet.

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The angle of refraction when aiming at the marble at the bottom of the fish tank is approximately 49.9 degrees.

The angle of refraction can be determined using Snell's law, which relates the angle of incidence and the angle of refraction to the indices of refraction of the two media involved. In this case, the incident medium is air (n1 = 1) and the refractive medium is water (n2 = 1.33).

Snell's law states:

n1 * sin(theta1) = n2 * sin(theta2)

where n1 is the refractive index of the incident medium, theta1 is the angle of incidence, n2 is the refractive index of the refractive medium, and theta2 is the angle of refraction.

Given that n1 = 1, theta1 = 80 degrees, and n2 = 1.33, we can rearrange Snell's law to solve for theta2:

sin(theta2) = (n1 / n2) * sin(theta1)

sin(theta2) = (1 / 1.33) * sin(80)

sin(theta2) = 0.7519

To find the angle of refraction, we take the inverse sine (sin^(-1)) of the calculated value:

theta2 = sin^(-1)(0.7519)

Using a calculator, we find that theta2 is approximately 49.9 degrees.

Therefore, the angle of refraction when aiming at the marble at the bottom of the fish tank is approximately 49.9 degrees.

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Answer:

Acceleration of the train is -3 m/s²

Explanation:

Since it stops,

final velocity (v) = 0 m/s

time (t) = 25 seconds

initial velocity(u) = 75 m/s

Now,

accelereation = (v-u)/t

or, a = (0-75)/25

or, a = -75/25

so, a = -3 m/s²

As you just said, the elephant "... has a mass of 6,000 kg ...". It doesn't matter where.

By resolving forces into their components and adding them together, you can determine the resultant force in the x and y directions without knowing the actual variables involved.

To find the summation of Fx and summation of Fy without knowing the specific variables, you need to have information about the forces acting on an object in the x and y directions. If you have the magnitudes and directions of individual forces, you can use vector addition to determine the resultant force in each direction.

Here's a general approach to finding the summation of Fx and Fy:

Identify the forces: Start by identifying all the forces acting on the object and their directions. Each force can be represented as a vector with a magnitude and direction.

Resolve forces: If the forces are not already given in the x and y directions, you need to resolve them into their x and y components. Use trigonometry (sine and cosine) to determine the components of each force along the x-axis (Fx) and the y-axis (Fy).

Sum the components: Add up all the individual components of forces acting in the x-direction to find the summation of Fx. Similarly, add up all the individual components of forces acting in the y-direction to find the summation of Fy.

Summation of Fx = F1x + F2x + F3x + ...

Summation of Fy = F1y + F2y + F3y + ...

Combine components: If there are forces acting at an angle to the x and y axes, you can use the Pythagorean theorem and trigonometry to find the resultant force in each direction.

Summation of Fx = √(F1x^2 + F2x^2 + F3x^2 + ...) (taking into account both magnitudes and directions)

Summation of Fy = √(F1y^2 + F2y^2 + F3y^2 + ...) (taking into account both magnitudes and directions)

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Answer:

27,500 N

Explanation:

W = Fd

F = W/d = (2.2x10⁵J)/(8 m ) = 27,500 N

The total kinetic energy before the collision, the spring potential energy, and the kinetic energy after the collision would be equal.

When comparing the kinetic energy before the collision, the spring potential energy, and the kinetic energy after the collision, a long explanation is necessary to make a proper comparison. Let's explore the different energies involved and the expected outcomes:Kinetic energy before the collision Before the collision, the system has a total kinetic energy of 1/2 mv², where m is the mass of the object and v is its velocity.

This energy is purely kinetic energy because the object is moving. So the total energy before the collision is only kinetic energy.Spring potential energyThe spring potential energy is the energy stored in a spring when it is stretched or compressed. It is equal to 1/2 kx², where k is the spring constant and x is the displacement from the equilibrium position. When the spring is compressed or stretched, it stores energy in the form of potential energy, which can be used to do work.

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Answer:

36400N

Explanation:

f =9100×4

f=36400N

Answer:

Force can also be described intuitively as a push or a pull. ... It is measured in the SI unit of newtons and represented by the symbol F. The original form of Newton's second law states that the net force acting upon an object is equal to the rate at which its momentum changes with time.

Explanation:

hope this helps : )

Among the following options, Enterprise Resource Planning (ERP) is the type of ES frequently used to support operational procurement activities.

ERP or Enterprise Resource Planning is a software application that an organization uses to manage its business processes. It integrates various departments, such as finance, HR, inventory, and procurement, into a single system and streamlines communication between them. This assists firms in effectively utilizing resources and achieving their objectives.

ERP system is frequently used to support operational procurement activities because it can help in coordinating the purchasing process from start to finish. It also automates many activities such as generating purchase orders, tracking shipments, recording receipts, and paying invoices.

Thus, it can increase the efficiency and accuracy of procurement processes, reducing the need for manual intervention.

Therefore, the correct answer is A) ERP.

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Answer:

Control Variable

Explanation:

A control variable is a variable that is held constant throughout the cause of an experiment, in order to test accurately the relationship between the dependent and the independent variables. The control variable, which is amount of water needed by the plants in this case, has the property of affecting the growth of the daisies, hence if it is not held constant, the result of the experiment might not be accurately attributed to the light source alone.

Therefore, to say with certainty that the difference seen in both categories of plants was from the difference in lighting alone, other variables (amount of water, type of soil, temperature etc.) has to be held constant

The total length of the conductor would be approximately 75.89 ft. Correct answer is A.

To calculate the total length of the conductor when the sag is 36 ft and the height of the support points is 20 ft, we can use the equation as given follows:

sag =\((L^2) / (8h)\)

Plugging in the given values:

36 =\((L^2) / (8 * 20)\)

Rearranging the equation to solve for L:

\(L^2 = 36 * 8 * 20 \\L^2 = 5760 \\L = \sqrt{(5760)\)

L ≈ 75.89 ft

Therefore, the total length of the conductor would be approximately 75.89 ft.

Since none of the given answer choices match the calculated result, the correct answer is: A. None of the choices are correct.

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Answer:

18.6 Ω

Explanation:

Resistance = \(\frac{Voltage}{Current}\)

But first we have to find the current.

Current = \(\frac{Power}{Voltage}\)

Power = 0.37W

Voltage = 2.60V

∴ Current = \(\frac{0.37}{2.60}\)

= 0.14 ( 3 significant figures)

Now we can find the resistance.

Resistance = \(\frac{2.60}{0.14}\)

= 18.6 Ω ( 3 significant figures)

When the force on two charged spheres is tripled, the distance between them becomes approximately 3.16 cm.

Let's denote the initial distance between the charged spheres as \($d_1$\) and the final distance as \($d_2$\). According to Coulomb's law, the force between two charged spheres is inversely proportional to the square of the distance between them.

The relationship between the forces and distances can be expressed as:

\(\[\frac{F_2}{F_1} = \left(\frac{d_1}{d_2}\right)^2\]\)

where \($F_1$\) is the initial force and \($F_2$\) is the final force. Given that the force is tripled, we have:

\(\[\frac{3F_1}{F_1} = \left(\frac{d_1}{d_2}\right)^2\]\)

Simplifying the equation, we get:

\(\[3 = \left(\frac{d_1}{d_2}\right)^2\]\)

Taking the square root of both sides, we find:

\(\[\sqrt{3} = \frac{d_1}{d_2}\]\)

Rearranging the equation to solve for \($d_2$\), we have:

\(\[d_2 = \frac{d_1}{\sqrt{3}}\]\)

Substituting the initial distance of \($d_1 = 7.93$\) cm, we can calculate the final distance \($d_2$\):

\(\[d_2 = \frac{7.93}{\sqrt{3}} \approx 3.16 \text{ cm}\]\)

Therefore, when the force on each charged sphere is tripled, the distance between them becomes approximately 3.16 cm.

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The characteristics of electromagnetic radiation include amplitude (brightness), wavelength, frequency, and period. We have shown that the frequency of a light wave is proportional to its energy by the equation E = h v or E=hnu

so

Radiation with a wavelength of 8.1 X 10^-8 m has the highest energy

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A. The amount of water. 50/50

Answer:

Where is the question??

Answer:

try this

Explanation:

The energy of a falling object when it hits the ground is equaled to the energy it starts with because the potential energy is converted into kinetic energy entirely with the height at 0. This means the energy would be 200 J.

RESULT

The coordinated functions of the Nervous, Endocrine, and Reproductive systems are:

Coordinated functions refer to the integration and communication between different organs, systems, and tissues in the body to achieve a common goal or purpose. In biological terms, coordinated functions often involve multiple physiological systems working together to maintain homeostasis, respond to stimuli, or carry out complex behaviors or processes.

Examples of coordinated functions include the regulation of blood glucose levels by the pancreas and liver, the coordination of movement by the nervous and musculoskeletal systems, and the release of hormones by the endocrine system to control various physiological processes.

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The question is:

"COORDINATED FUNCTIONS OF THE NERVOUS, ENDOCRINE, AND REPRODUCTIVE SYSTEMS"

Directions: Identify the part of the brain that is involved in each situation below. Write only the letter of your answer.

A. Amygdala

B. Brocka's Area

C. Cerebellum

D. Cerebrum

E. Hippocampus

F. Occipital Lobe

G. Hippocampus

H. Hypothalamus

I. Inferior Colliculus.

J. Thalamus

K. Pons

L Superior Colliculus

M. Pineal Gland

N. Wernicke's Area

O. Pituitary Gland

1. "My heart tells me that you are the one. I love you so much!"

2. "IAOCEVOY! I don't know what that means. It's all Greek to me!"

3. "Chartreuse, Olive,Turquoise, and Mint are all shades of green."

4. "Janna always wakes up at 4 in the morning, regardless of whether she uses an alarm clock or not."

5. "I don't remember the way going to Myla's house. Can you accompany me there?"

6. Jenny's mother is about to give birth, she complains about contraction and pain usually when the baby is kicking

7. "Anthony is a very skilled dancer. He just won the school hip hop dance competition last week."

8. "As Nica was walking on the road she readily moved to the side for she heard an incoming ambulance"

9. "Elsa loves making faces whenever she talks to her friends."

10. "Ryan usually talks about how happy his high school days were to his grandchildren."

Answer:

Explanation:

60 times 5=300+24=324

207/324= aveage i dont have a calculator

use the average and mutiple by 88 minutes

Answer:

12.01

Explanation:

Given parameters:

Abundance of C-12  = 98.89%

mass of isotope  = 12amu

Abundance of C - 12  = 1.11%

mass of isotope  = 13.003

Unknown:

Average atomic mass of carbon  = ?

Solution:

The average atomic mass ;

R.A.M  = (mass of isotope x abundance of isotope)-12 + (mass of isotope x abundance of isotope)- 13

Insert the parameters and solve;

R.A.M  =( 12  x 98.89%)  + (1.11% x 13.003)

 R.A.M = 11.87 + 0.14 = 12.01

Answer:

P = 40.7kPa

Explanation:

To find the pressure on a surface 6 meter below you use the following formula, which takes into account the heights in which pressures are measured and also the density of the fluid and the gravitational acceleration:

\(P_2-P_1=-\rho g(y_2-y_1)\)             (1)

P2: pressure for a height of -6 m = ?

P1: pressure for a height of -2 m = 1.5kPa = 1500 Pa

ρ: density of water = 1000kg/m^3

g: gravitational acceleration = 9.8 ms^2

y2: -6m

y1: -2m

(the height is measure from the water level, because of that, the heights are negative)

You solve the equation (1) for P1:

\(P_1=P_2-\rho g(y_2-y_1)\)         (2)

Next, you replace the values of all variables in equation (2):

\(P_2=1500Pa-(1000kg/m^3)(9.8m/s^2)(-6-(-2))m=40700Pa\\\\P_2=40.7kPa\)

hence, the pressure on a surface 6 m below the water level is 40.7kPa

Answer:

Mass and kinetic energy have a positive relationship, which means that as mass increases, kinetic energy increases, if all other factors are held constant.

In this state, Kinetic energy is equal to half of the product mass and velocity. SI unit is joules. So it's if the mass is doubled then the kinetic energy also gets doubled.

Answer:

Rechargeable batteries can still go flat after repeated use because the materials involved in the reaction lose their ability to charge and regenerate

Explanation:

they go flat because they a rechargeable and sometimes don't always work

thank you hope u have a good day

The bigger fragments in gel electrophoresis are predicted to go the shortest distance from the well. This is due to the fact that gel electrophoresis divides DNA or other biomolecules according to their charge and size.

An electric field is spread over the gel matrix during electrophoresis. DNA molecules that are negatively charged move in the direction of the positive electrode. The gel matrix nevertheless functions as a molecular sieve, restricting the flow of bigger molecules more so than smaller ones.

Larger pieces move slower than smaller fragments because they encounter more resistance as they move through the gel matrix. As a result, they move closer to the positive electrode from the well than smaller fragments do because they can move through the gel's pores more readily.

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Answer:

B because of the friction from the wheels