A heavy rope of linear mass density 0.0700 kg/m is under a tension of 50.0 N. One end of the rope is fixed and the other end is connected to a light string so that the end is free to move in the transverse direction (the other end of the light string is fixed). A standing wave with three antinodes (including the one at the string/rope interface) is set up on the rope with a frequency of 30.0 Hz, and the maximum displacement from equilibrium of a point on an antinode is 2.5 cm. Find: a) the speed of waves on the rope, b) the length of the rope, c) the expression for the standing wave on the rope. d) When the rope is oscillating at its fundamental frequency, with a maximum displacement at the antinode of 2.5 cm, what are the amplitude and the maximum transverse velocity of a point in the middle of the heavy rope?

Answer:

the wagon should be used as frame of reference if an observer said the child was not moving.

Explanation:

The state of motion of a body depends upon the frame of reference. It is the set of co-ordinates according to which the motion is analyzed. If a child is riding in a wagon, then he will be considered in motion to a person standing outside the wagon. Hence, if we take a frame of reference outside the wagon then the child must be in motion with respect to the observer. On the other hand if the observer is inside the wagon, then the child must be in rest with respect to the observer. Hence, if we take the wagon to be the frame of reference, then the child will be at rest with respect to the observer.

Therefore, the wagon should be used as frame of reference if an observer said the child was not moving.

Answer:

Because the mechanical advantage of the machine is affected by friction and weight but velocity ratio is not. So, mechanical advantage is less than velocity rate. Thus, the machine's efficiency is less than 100% and can't be a perfect machine

By the help of Kinetic energy ,the ratio of the brick's mass to the pebble's mass is \(\frac{9}{25}M = m\)

A moving item or particle might have power of a certain sort called kinetic energy. An object gains kinetic energy when work, which involves the transfer of energy, is done on it by exerting a net force. Kinetic energy is a characteristic of motion that depends on the mass and speed of an object or particle. Motion includes all combinations of vibration, axis rotation, translation, and movement (along a path from one location to another).

M should represent the brick mass.

Let m represent the pebble's mass.

.\(\frac{1}{2} M(v)^2\) =KE

\(\frac{1}{2} M(3)^2\)=KE

\(\frac{1}{2} m(5)^2\)= KE

\(\frac{1}{2} M(3)^2= \frac{1}{2} m(5)^2\)

9M = 25m

\(\frac{9}{25}M = m\)

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Answer:

Explanation:

Sprouted seeds - are the best for health.

I hope it helps! Please mark my answer answer as bräinliest (if my answer is correct). Thank You!

Answer:

Technically yes, it does help those objects not to float away, but that is false. gravity is not the factor that lets us watch tv, talk on the phone etc.

Gravity helps us watch television, talk on the phone, and use the Internet. This is true statement.

The goal of satellites is to achieve balance. They rotate around the globe quickly enough to avoid being entirely drawn down into the planet's center of gravity, yet slowly enough to avoid drifting out into space.

When a satellite is travelling at the right speed, the earth's gravitational attraction is just strong enough to keep it in place. A satellite must move quicker to maintain orbit the nearer it is to the earth's surface. Additionally, satellites' orbits are circular or elliptical due to the continual pull of the curved surface of the planet.

Therefore, gravity plays a crucial role in our daily lives, whether it's keeping us anchored to the planet's surface or keeping the satellites we use to communicate and learn more about our environment in orbit.

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Answer:

a

Explanation:

light can not pass through it completely

Answer:

convert it into distance form

Explanation:

The magnitude of the traveler's displacement is approximately 39.5 km.

To find the magnitude of the traveler's displacement, we can combine the individual displacements in a vector sum.

The first leg of the journey is a displacement of 21.0 km east. We can represent this as a vector in the positive x-direction: (21.0 km, 0 km).

The second leg of the journey is a displacement of 28.8 km southeast. We can break down this displacement into its x and y components. The southeast direction is a combination of east and south. The angle between the southeast direction and the positive x-axis is 45 degrees. Using trigonometry, we can find the x and y components:

x-component = 28.8 km * cos(45°) = 20.4 km

y-component = 28.8 km * sin(45°) = 20.4 km

So, the second displacement can be represented as a vector: (20.4 km, -20.4 km).

The third and final leg of the journey is a displacement of 10 km south. We can represent this as a vector in the negative y-direction: (0 km, -10 km).

To find the total displacement, we add the individual displacements:

(21.0 km, 0 km) + (20.4 km, -20.4 km) + (0 km, -10 km) = (41.4 km, -30.4 km)

The magnitude of the displacement is given by the Pythagorean theorem:

Magnitude = √((41.4 km)² + (-30.4 km)²) ≈ 39.5 km

Therefore, the magnitude of the traveler's displacement is approximately 39.5 km.

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Answer:

speed

Explanation:

Answer:

a. to find the volume of a shape using V=I Xw X h. Pull out your LEGO bricks and begin with a 1 by 1.

b.Direct measurement is measurement done by bringing the target into contact with the measurement system to read the length, height, or other aspect directly. Although direct measurement allows measurement results to be known as they are, errors may occur depending on the skill of the person doing the measurement.

c.1. Switch off the fan in the lab so that wind will not affect the result. 2. Ensure that the ruler has stopped moving before taking length measurement.

Answer:

x = 1/2

Explanation:

5x/x + 2 = 3x/x + 1

do cross multiplication

(x + 2) * 3x = (x + 1) * 5x

3x^2 + 6x = 5x^2 + 5x

6x - 5x = 5x^2 - 3x^2

x = 2x^2

x/x^2 = 2

1/x = 2

1 = 2x

1/2 = x

Visible light, x-rays, and radio waves are forms of electromagnetic waves that can travel through vacuum and mater.

Answer:

The answer to this is FALSE.

The equation of motion is given by:

x = e^(-t) [C1 cos 2t + C2 sin 2t] - 4/21 cos 2t + 8/21 sin 2t.

Mass, m = 1 kg

Spring constant, k = 5 N/m

Initial displacement, x = -1 m

Velocity, v = -7 m/s

The damping force is numerically equal to 2 times the instantaneous velocity.

So, damping coefficient, b = 2 m/s

For the given system, the equation of motion can be written as:

m d²x/dt² + b dx/dt + kx = f(t)

where,

m is the mass

b is the damping coefficient

k is the spring constant

f(t) is the external force

On substituting the given values in the equation of motion, we get:

1 d²x/dt² + 2 dx/dt + 5x = 16 cos 2t + 4 sin 2t ........ (i)

Let us assume a particular solution of the form:

x = Acos 2t + Bsin 2t

On substituting this in equation (i), we get:

-4A sin 2t + 4B cos 2t + 4A cos 2t + 4B sin 2t + 2(-2A sin 2t + 2B cos 2t) + 5(A cos 2t + B sin 2t) = 16 cos 2t + 4 sin 2t

Grouping the coefficients of cos 2t and sin 2t terms, we get:

-4A + 2B + 5A = 4..................(1)

4B - 2A + 5B = 0..................(2)

Solving the above two equations, we get:

A = -4/21B = 8/21

So, the particular solution is given by:

x = -4/21 cos 2t + 8/21 sin 2t

The general solution is given by the sum of the complementary function and the particular solution.

The complementary function can be obtained by solving the characteristic equation.

The characteristic equation is given by:

1 m² + 2 m + 5 = 0

On solving the above quadratic equation, we get:

m = -1 ± 2i

Therefore, the complementary function is given by:

x = e^(-t) [C1 cos 2t + C2 sin 2t]

where C1 and C2 are constants.

Substituting the values of A and B in the particular solution, we get:

x = -4/21 cos 2t + 8/21 sin 2t

The general solution is given by:

x = e^(-t) [C1 cos 2t + C2 sin 2t] - 4/21 cos 2t + 8/21 sin 2t

Hence, the equation of motion is given by:

x = e^(-t) [C1 cos 2t + C2 sin 2t] - 4/21 cos 2t + 8/21 sin 2t.

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Zooming I. On the image the red line is just short of the 3rd line past the 7 so it is not 7.3 but just a little under.

Answer: 7.28

Answer:

the Mesosphere

Most meteors burn up in the mesosphere. Unlike the stratosphere, temperatures once again grow colder as you rise up through the mesosphere.

Explanation:

Have a nice day

Answer:

The Mesosphere

Explanation:

It is the coldest layer.

Answer: False

Explanation:

Since a positive component indicates that block 1 will be traveling in the i^ direction, the answer is 4.51 i^. Therefore, the required answer is 4.51. Answer: 4.51.

When two blocks with masses m1 = 4.5 kg and m2 = 13.33 kg on a frictionless surface collide head-on, block 2 comes to rest.

The initial velocity of block 1 is v→1, i = 4.36 i^ ms and the initial velocity of block 2 is v→2, i = -5 i^ ms.

We are required to find the x-component of velocity in units of ms of block 1 after the collision.

We need to find the final velocity of block 1 after the collision. We can use the law of conservation of momentum to solve this problem.

The law of conservation of momentum states that the total momentum of an isolated system of objects with no external forces acting on it is constant. The total momentum before collision is equal to the total momentum after the collision.

Using the law of conservation of momentum, we can write:

\(m1v1i +m2v2i = m1v1f + m2v2f\)

where

v1i = 4.36 m/s,

v2i = -5 m/s,m1

= 4.5 kg,m2

= 13.33 kg,

v2f = 0 m/s (because block 2 comes to rest), and we need to find v1f.

Substituting the given values, we get:

4.5 kg × 4.36 m/s + 13.33 kg × (-5 m/s)

= 4.5 kg × v1f + 0

Simplifying, we get:

20.31 kg m/s

= 4.5 kg × v1fv1f

= 20.31 kg m/s ÷ 4.5 kgv1f

= 4.51 m/s

The x-component of velocity in units of ms of block 1 after the collision is 4.51 m/s.

Since a positive component indicates that block 1 will be traveling in the i^ direction, the answer is 4.51 i^.

Therefore, the required answer is 4.51. Answer: 4.51.

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Answer:

a.3.51s

b.33.8m

c. 9.64,-22.9

Explanation:

(a) The time taken be "3.5083 sec".

(b) The distance will be "33.82 m".

(c) The horizontal and vertical components be "9.64 m/s and -22.89 m/s".

According to the question,

Speed, V₀x = 15 Cos (50.0°)

                   = 9.64 m/s

            V₀y = 15 Sin (50.0°)

                   = 11.49 m/s

Vertical displacement = -20.0 m

(a) We know the relation between displacement, time and acceleration

→  y = vt + \(\frac{1}{2}\)at²

By substituting the values,

→ -20.0 = 11.49 t - 4.9 t²

  4.9 t² - 11.49 t - 20.0 = 0

                                   t = \(\frac{11.49 + \sqrt{132.02+392} }{9.8}\)

                                     = \(\frac{11.49 + 22.89}{9.8}\)

                                     = 3.5083 sec

(b) We know the formula,

Distance = Speed × Time

or,

→ X = 9.64 t

      = 9.64 × 3.5083

      = 33.82 m

(c) Again by using the above relation, we get

    Vx = V₀x

          = 9.64 m/s

    Vy = V₀y - gt

By substituting the values,

          = 11.49 - 9.8 × 3.5083

          = 11.49 - 34.38

          = -22.89 m/s

Thus the response above is correct.

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Answer:

Oxygen, Argon, Carbon

edge2020

Answer:

carbon, oxygen, argon,

Explanation:

:)

Answer: it's an electronic device

Explanation: it's where you store and process data, it acts according to the instructions given to it in a variable program.

Sorry if this wasn't the answer you were looking for.

The ticker tape is pulled through the timer once it's powered, which creates a dot along the length of this paper tape at fixed time intervals.

A ticker timer can be defined as a scientific apparatus that is designed and developed to measure time in seconds. Thus, a ticker timer can be used to measure short intervals of time by making dots on a paper tape at regular (fixed) intervals.

By design, a ticker timer comprises a magnet, carbon paper disk and a ticker tape which is pulled through the timer once it's powered, so as to create a dot along the length of this paper tape at fixed time intervals.

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Answer:

I = Q / t          definition of current I

Q = i t = 10 Coul/sec * 60 sec = 600 Coul

A 10-A current is maintained in a simple circuit with a total resistance of 209 ohms, then the net charge passes through any point in a circuit during a 1-minute interval would be 6000 Coulombs.

Charged material experiences a force when it is exposed to an electromagnetic field due to the physical property of electric charge. You can have a positive or negative electric charge.

Electric current is defined as the charge per unit of time.

The mathematical relation between current and the electric charge

I =Q/T

Let us first convert the time period of minutes into seconds

1 min = 60 seconds

10  min = 10*60 seconds

            =600 seconds

Q = I*t

   =10*600

   =6000 Amperes

Thus, the net charge that passes through any point in a circuit during a 1-minute interval would be 6000 Amperes.

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Answer:

Hi there!

Your answer is:

The handle is made from a different material than the rest of the pot because you want to be able to safely move & touch the handle without getting burnt. The pot is made of conductors, like metal, to help it get hot quickly and cook evenly. You need to be able to touch the handle without being in danger, so the handle is made of an insulator, like wood, which doesn't get hot easily

I hope this helps!

Answer: the handle is made up of different material than the rest of the pot because the handle can conduct heat into your hand if its the same material.

The net electric force on particle q2 is 27.81 N.

The net force on the particle q2 is calculated by applying Coulomb's law of electrostatic force.

The force on particle q1 due to particle q2 is calculated as;

F ( 12 ) = kq₁q₂/r²

where;

F ( 12 ) = ( 9 x 10⁹ x 18 x 10⁻⁶ x 11.2 x 10⁻⁶ ) / ( 0.28² )

F ( 12 ) = 23.14 N

The force on particle q3 due to particle q2 is calculated as;

F (23) = kq₃q₂/r²

F (23) = (9 x 10⁹ x 5.67 x 10⁻⁶ x 11.2 x 10⁻⁶)/(0.35²)

F (23) = 4.67 N

The net electric force on particle q2 is calculated as follows;

F (net) = 23.14 N + 4.67 N

F (net) = 27.81 N

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The solution to the equation (9/4x²-1) - (3/2x-1)² is x = 3/2.

To solve the equation (9/4x²-1) - (3/2x-1)², we can follow these steps:

Expand and simplify the expression within the parentheses.

(3/2x - 1)² = (3/2x - 1) * (3/2x - 1)

= (9/4x² - 3/2x - 3/2x + 1)

= (9/4x² - 6/2x + 1)

= (9/4x² - 3/x + 1)

Substitute the expanded expression back into the original equation.

(9/4x² - 1) - (9/4x² - 3/x + 1)

Simplify the expression by combining like terms.

Distribute the negative sign to every term within the second set of parentheses:

(9/4x² - 1) - 9/4x² + 3/x - 1

Combining like terms, we have:

9/4x² - 9/4x² + 3/x - 1 - 1

The x² terms cancel out, and we are left with:

3/x - 2

The equation is now simplified to 3/x - 2 = 0.

To solve for x, we can isolate the term with x by adding 2 to both sides:

3/x = 2

Then, we can cross multiply to solve for x:

3 = 2x

Finally, divide both sides by 2 to solve for x:

x = 3/2

Therefore, the solution to the equation (9/4x²-1) - (3/2x-1)² is x = 3/2.

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The coefficient of volume expansion of a material is a measure of how much its volume changes with a change in temperature. For aluminium, the coefficient of volume expansion is approximately \(7.1 \times 10^{-5}\) per degree Celsius (\(K^{-1}\)).

For aluminium, the coefficient of volume expansion is approximately \(23.1 \times 10^{-6}\) per degree Celsius. This means that for every degree Celsius increase in temperature, the volume of aluminium will increase by approximately 23.1 parts per million (ppm).

This coefficient of volume expansion is an important property of aluminium, as it affects its behaviour in a variety of applications. For example, in the aerospace industry, aluminium is used extensively in the construction of aircraft because of its low weight and high strength-to-weight ratio. However, as the temperature of the aircraft changes during flight, the volume of the aluminium components will also change, potentially affecting the structural integrity of the aircraft.

Understanding the coefficient of volume expansion is therefore essential for engineers and designers working with aluminium in a variety of fields, from aerospace to construction to electronics.

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RS is a composition of rotation and reflection in the Euclidean plane E². The precise description of RS depends on the specific properties of the rotation R and reflection S.

In general, if R and S have the same axis or line of symmetry, the composition RS results in a translation. If R and S have intersecting lines of symmetry, RS yields a glide reflection. If R and S have perpendicular lines of symmetry, RS produces a rotation.

It is important to consider special cases, such as parallel lines of symmetry, coinciding axes, or perpendicular lines of reflection, as they may lead to different outcomes. The classification of isometries in E² involves understanding how rotations and reflections combine to create different transformations in the plane.

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