A 100-gram wire that is 1.0 m long is under tension. When a transverse wave of frequency 800 Hz travels down the wire, its wavelength is 0.10 m and its amplitude is 6.5 mm. What is the tension in the wire?

The car's speed at the top is 0.6 m/s^2

The diameter of loop d = 40 mm

The radius of loop r = 20 mm = 0.02 m

At the top position, we can write,

Weight and Normal reaction combination will provide the centripetal force i.e.

R + W = mv²/R

R = W [apparent weight = Actual weight]

2W = 2mg = mv2/r

v = √2gr

v = 2 x 10 x 0.02 = 0.6 m/s^2

Hence, the car's speed at the top is 0.6 m/s^2

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Answer:

a semi truck

Explanation:

Answer:

he was a random act like you to be the first time I see is a great day and night to get a very happy to see you soon I hope that the world is not the same thing to say about this

a) When a box slides across a rough surface, eventually coming to rest, its kinetic energy is used during work done against frictional resistance force.

b) This work done is stored in the box as a potential energy. Thus the motion of the box is consistent with the Law of Conservation of Energy.

According to the work-energy theorem, the work done by the net force acting on a body equals the change in kinetic energy.

It can simply be written as:

Work done = initial kinetic energy - final kinetic energy

The work energy theorem equation is the one presented above.

Now when a box slides across a rough surface, eventually coming to rest, frictional force comes into play. This force is opposite to the direction of motion of the box. Hence, the kinetic energy of the box is used during work done against frictional resistance force and stored in the box as a potential energy and thus  Law of Conservation of Energy followed.

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The formula used to determine the ball's speed before to colliding with the pendulum is Vb=Vb(mb,mp,V).

The primary indication of an object's position and speed is its velocity. It is the distance traveled by an item in one unit of time. A physical vector quantity called velocity must have both a magnitude and a direction in order to be defined. Speed is the scalar absolute value (magnitude) of velocity; it is a coherent derived unit whose quantity is measured in metres per second (m/s or ms1) in the SI (metric system).

The definition of magnitude is "how much of a quantity." The magnitude, for example, can be utilized for describing how the .

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If the wire is tipped at an angle of 15.0° with the horizontal, we need to determine the force it will now feel. The length of the wire that will be in the magnetic field is relevant to finding the answer.

When a wire carrying current is placed in a magnetic field, it experiences a force perpendicular to both the direction of current flow and the magnetic field. In this case, when the wire is tipped at an angle of 15.0° with the horizontal, only a component of the wire's length will be in the magnetic field.

To find the force, we need to consider the effective length of the wire in the magnetic field. This can be calculated by multiplying the actual length of the wire by the cosine of the angle between the wire and the magnetic field. Once we have the effective length, we can use the formula for the force on a current-carrying wire in a magnetic field, which is given by the equation F = BIL, where B is the magnetic field strength, I is the current, and L is the length of the wire in the field. By substituting the effective length into the equation, we can determine the force the wire will experience.

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The service disconnecting switch for an installation consisting of a limited load on a single branch circuit should have a rating of not less than 15 ampere.

A service disconnecting switch is a device which disconnects all the conductors of the system from the main source of supply. The limitation of current is due to the high heat produce. As heat in a conductor is a function of current. Like: H = i²Rt

Where I is the current, R is the resistance of the device, and t is the time of current flow. We can see by the formula that heat is directly proportional to the square of the current. More is the current more will be the heat produced.

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Answer: this is true

Explanation:

if the object is moving and there is nothing stooping it, it will keep moving  

Answer:

The answer is water

Explanation:

it has a netural ph of 7.0

why is the only option milk?

The Ph for milk is about 6.5 to 6.7,  it varies becauses milks gets sour when it rots.

The phrase "like dissolves like" can be described as the compounds which have similar nature dissolve in each other that is polar dissolves polar and non-polar dissolves non-polar molecules.

Polarity is the separation of electric charge which is leading to a molecule or the chemical groups which are having an electric dipole moment, with a negatively charged end and a positively charged end as well. Polar molecules are the molecules which must contain one or more polar bonds which occur due to a difference in the electronegativities between the bonded atoms of the molecule.

A simple way to predict the compounds which will dissolve in other compounds is the phrase of the compound such as "like dissolves like". This means that the polar compounds dissolve in polar compounds, and the nonpolar compounds dissolve in nonpolar compounds, however, the polar and nonpolar molecules do not dissolve in each other.

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Answer:

the answer is A. 4 carbon atoms, 4 hydrogen atoms, and 2 oxygen atoms

The number of atoms of each molecule of the reactants is required.

The correct option is c. 1 carbon atom, 4 hydrogen atoms, and 4 oxygen atoms

The given reaction is

\(CH_4+2O_2\rightarrow CO_2+2H_2O\)

For carbon atoms

The only carbon atom is present in \(CH_4\)

So, 1 carbon atom

The hydrogen atoms are also present is \(CH_4\)

There are 4 hydrogen atoms.

The oxygen atoms present is \(2\times 2=4\)

So, the number of atoms present in the reactants are c. 1 carbon atom, 4 hydrogen atoms, and 4 oxygen atoms

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Radio astronomy can detect faint sources of radiation that optical astronomy cannot detect. Radio astronomy can measure the rotational velocities of stars and galaxies.

Radio astronomy can measure the magnetic fields in stars and galaxies. It can detect the expansion of the universe. Also can measure the temperature of interstellar gas clouds and the composition of interstellar clouds. Radio astronomy can detect high-energy particles, such as cosmic rays. Beyond the red end of the visible spectrum, near-infrared and mid-infrared wavelengths are detected by the James Webb Space Telescope. The electromagnetic energy spectrum is depicted in this infographic, with a focus on the regions that NASA's Hubble, Spitzer, and Webb space observatories have been able to see.

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Answer:

An oscillation is a repetitive motion that moves back and forth around an equilibrium position.

Explanation:

An oscillation is a type of periodic motion that happens when a physical system is affected by a restoring force that moves it back toward equilibrium. The motion of a pendulum and a weight on a spring are examples of oscillatory motion. In physics, a simple pendulum is an example of an oscillator that undergoes sinusoidal oscillations because it is a conservative system that follows Hooke's law. The restoring force is proportional to the displacement from equilibrium in the case of the spring-mass system. In summary, oscillation is the repetition of a back-and-forth motion around an equilibrium point.

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Answer:

Acceleration, a = 2.47 seconds

Explanation:

Given the following data;

Time, t = 1.8 seconds

Distance = 4 meters

Initial velocity = 0 m/s (since it's starting from rest)

To find the acceleration of the toy car, we would use the second equation of motion;

\( S = ut + \frac {1}{2}at^{2}\)

Where;

S represents the displacement or height measured in meters.

u represents the initial velocity measured in meters per seconds.

t represents the time measured in seconds.

a represents acceleration measured in meters per seconds square.

Substituting into the equation, we have;

Substituting into the formula, we have;

\( 4 = 0(1.8) + \frac {1}{2}*a*(1.8)^{2}\)

\( 4 = 0 + \frac {1}{2}*a*3.24\)

\( 4 = \frac {1}{2}*a*3.24\)

Cross multiplying, we have;

\( 8 = 3.24a\)

\( a = \frac {8}{3.24}\)

Acceleration, a = 2.47 seconds

Distance x force equals work done. When this occurs, the amount of work done is measured in joules (J), the amount of force is recorded in newtons (N), and the distance travelled along the force's path is measured in meters (m).

The SI unit of labor is called a joule (J).

The following questions have the following answers:

1) In the picture below, F1 acts downward and F2 acts upward.

2) Moments on the LHS equal F1d1 and on the RHS, F2d2.

Moment in LHS= RHS F1d1= F2d2 F1= (20Kg 10)/200 N Consequently, 200 N0.8= F20.95 160= 0.95 F2 = 168.42 N

The net force has a magnitude of 168.42 N and is directed upward.

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The hanging mass will be 0.101 kg.

The formula for calculating the mass of a hanging wire is given as;

m = (π/4) * [(ρL² /Y) * ΔL + L * Δρ]

where; m is the mass of the hanging weight,

            ρ is the density of the wire,

            L is the length of the wire,

            Y is Young's modulus of the wire,

           ΔL is the extension of the wire and

         Δρ is the change in the density of the wire.

In this case,

ρ = 7.86 x 10³ kg/m³L

  = 2.9 mD

  = 0.48 mm

  = 0.48 x 10⁻³ m

  = 4.8 x 10⁻⁴ mY

  = 2.0 x 10¹¹ N/m²ΔL

  = 1.4 x 10⁻³ m

Let US calculate the mass of the wire;

A = (π/4) * D²A

    = (π/4) * (4.8 x 10⁻⁴)²A

    = 1.80955737 x 10⁻⁷ m²ρL

    = 7.86 x 10³ kg/m³ * 2.9m

    = 22.794 kg Y

   = 2.0 x 10¹¹ N/m²m_wire

   = ρLA / Lm_wire

   = 7.86 x 10³ kg/m³ * 1.80955737 x 10⁻⁷ m² / 2.9m

  = 4.9091761 x 10⁻⁴ kg

Let's calculate the mass of the hanging weight using the mass formula.

m = (π/4) * [(ρL² /Y) * ΔL + L * Δρ]

m = (π/4) * [(7.86 x 10³ * 2.9² / 2.0 x 10¹¹) * 1.4 x 10⁻³ + 2.9 * 4.8 x 10⁻⁴]

m = 0.100615775 kg

Therefore, the hanging mass will be 0.101 kg.

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Step 1;

Given,

The mass of the person, m=57.0 kg

The radius of the track, R=42.7 m

The normal force acting on the person, N=995 N

Step 2:

The centripetal force required for the person is provided by the sum of the difference in the normal force and the weight of the person.

Thus the centripetal force on the person is given by,

Where v is the speed with which the car and the person are moving and g is the acceleration due to gravity.

On rearranging the above equation,

Step 3:

On substituting the known values in the above equation,

Thus the velocity of the car is 18.08 m/s

Answer:

ac = 124.6 m/s²

Explanation:

When an object executes a uniform circular motion, acceleration is produced in it due to a change in its direction during the motion. This acceleration is called the centripetal acceleration. The formula used to find this acceleration is given as follows:

\(a_{c} = \frac{v^{2}}{r}\\\)

where,

ac = centripetal acceleration = ?

v = speed = 9 m/s

r = radius = 0.65 m

Therefore,

\(a_{c} = \frac{(9\ m/s)^{2}}{0.65\ m}\\\)

ac = 124.6 m/s²

Answer:

Essential processes happen in a cell: Onion plant and Diatom

A cell is its basic unit of structure: Onion plant and Diatom

Made up of one cell: Diatom

Made up of many cells: Onion plant

The part of the microscope that the objectives are attached to is called the (C) nosepiece.

The nosepiece is a rotating mechanism located below the microscope's body tube. It holds the objectives, which are the lenses responsible for magnifying the specimen. The nosepiece typically has multiple positions, allowing the user to switch between different objective lenses for varying levels of magnification.

This convenient feature eliminates the need to manually remove and replace objectives when changing magnification. By rotating the nosepiece, different objectives can be brought into position above the specimen. This allows for quick and efficient adjustments in magnification without disrupting the viewing process.

Hence, the nosepiece plays a critical role in the microscope's functionality by providing a convenient way to switch between objectives and adjust the magnification level.

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Here is the complete question:

What is the name of the part of the microscope that the objectives are attached to? (Choose the best answer)

A. Ocular

B. Stage

C. Nosepiece

D. Arm

Answer: chemical change.

Explanation: Because the bleach has caused the denim to change color, the change is likely to be a chemical change.

The change that occurs when household bleach is spilled on denim jeans is a chemical change.

A physical change is a change in the form of a substance, but not in its chemical composition. For example, if you melt a piece of ice, you have made a physical change because the ice has changed from a solid to a liquid, but the chemical composition of the ice has not changed.

A chemical change is a change in the chemical composition of a substance. This means that the atoms in the substance are rearranged to form new substances. For example, when household bleach is spilled on denim jeans, the bleach reacts with the indigo dye in the jeans to form a new substance that is colorless.

In the case of household bleach on denim jeans, the bleach reacts with the indigo dye in the jeans to form a new substance that is colorless. This is a chemical change because the chemical composition of the indigo dye has been changed. The color change is a clear indication that a chemical change has occurred. When the bleach reacts with the indigo dye, the bonds between the atoms in the indigo dye are broken and new bonds are formed. This results in the formation of a new substance that is colorless.

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Answer:

The Convex Mirror is used.

Explanation:

The soldier's speed initially increases as she falls due to the force of gravity. The speed-time graph for the whole journey will have a positive slope in the beginning, followed by a negative slope, and finally a horizontal line.

However, once the parachute is opened, the air resistance increases and slows down her speed. The final speed at which she lands depends on various factors such as the size and shape of the parachute, the weight of the soldier, and the air resistance. The second stage is when the parachute is opened. During this stage, the soldier's speed decreases gradually due to air resistance. Therefore, the speed-time graph for this stage will be a curved line with a negative slope. The final stage is when the soldier lands on the ground.

To plot a speed-time graph for the whole journey, we need to break down the journey into different stages. The first stage is the free fall without the parachute. During this stage, the soldier's speed increases at a constant rate due to gravity. Therefore, the speed-time graph for this stage will be a straight line with a positive slope.

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We will have that the picture that shows the highest average kinetic energy is image B.

Answer:

Convex lens

hope that helps you

The electric field strength is approximately -3.34 × 10^29 newtons per coulomb (N/C).

To determine the electric field strength, we can use the following equation that relates the change in speed of a charged particle to the electric field strength:

Δv = a * Δt

Where:

Δv is the change in velocity (speed) of the electron

a is the acceleration of the electron

Δt is the time taken

Given:

Initial velocity (v1) = 2.0 × 10^7 m/s

Final velocity (v2) = 4.0 × 10^7 m/s

Distance (d) = 1.4 cm = 0.014 m

The change in velocity can be calculated as:

Δv = v2 - v1

Δv = (4.0 × 10^7 m/s) - (2.0 × 10^7 m/s)

Δv = 2.0 × 10^7 m/s

We can rearrange the equation to solve for acceleration (a):

a = Δv / Δt

To find the time (Δt), we can use the equation:

d = (1/2) * a * Δt^2

Rearranging this equation to solve for Δt:

Δt = sqrt((2 * d) / a)

Substituting the given values:

Δt = sqrt((2 * 0.014 m) / (2.0 × 10^7 m/s))

Δt = sqrt(1.4 × 10^(-8) s^2 / m^2)

Δt = 3.74 × 10^(-4) s

Now we can calculate the acceleration (a):

a = Δv / Δt

a = (2.0 × 10^7 m/s) / (3.74 × 10^(-4) s)

a = 5.35 × 10^10 m/s^2

Finally, we can find the electric field strength (E) using the equation:

E = a / q

Where q is the charge of the electron. The charge of an electron is approximately -1.6 × 10^(-19) coulombs.

E = (5.35 × 10^10 m/s^2) / (-1.6 × 10^(-19) C)

E ≈ -3.34 × 10^29 N/C

The electric field strength is approximately -3.34 × 10^29 newtons per coulomb (N/C).

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Answer:

The correct option is;

D. There is not enough information to answer this question

Explanation:

The universal gravitational constant = 6.67408 × 10⁻¹¹ 3³/(kg·s²)

For an in between distance of 1 m and equal masses of 60 kg, we have;

\(F = G \times \dfrac{m_{1} \times m_{2}}{r^{2}} = 6.67408 \times 10^{-11} \times \dfrac{60 \times 60}{1^{2}} \approx 2.403 \times 10^{-7} N\)

The gravitational attraction ≈ 2.403 × 10⁻⁷ N, which does not correspond with the answers, therefore, the best option is that there is not enough information to answer this question.