5. How can you use units to tell the difference between speed, velocity, and
acceleration?

Answer:   6.605

Explanation:

Answer:

Resistance is 1.75 ohms

Explanation:

Magnetic flux:

\({ \phi{ = NBA}}\)

N is number of turns, N = 8

B is magnetic flux

A is area of projection.

From faradays law:

\(E = - \frac{ \triangle \phi}{t} \)

where E is the Electro motive force.

But E = IR

where I is current and R is resistance:

\(IR = \frac{( \phi_{1} - \phi _{2}) }{t} \\ \\ 140 \times R = \frac{8 \times (8 - 5)}{0.098} \\ \\ R = \frac{24}{0.098 \times 140} \\ \\ resistance = 1.75 \: ohms\)

The time taken for the train to stop is 8.9 seconds.

The distance traveled by the train during acceleration is 9,984 m.

The distance traveled by the train during deceleration is 17.8 m.

Use the following kinematic equation to determine the time taken for the train to stop.

v = u + at

where;

0 = 4 - 0.45t

0.45t = 4

t = 4/0.45

t = 8.89 seconds = 8.9 seconds

s = ut + ¹/₂at²

where;

s = (4)(480) +  ¹/₂(0.07)(480)²

s = 9,984 m

s = ut + ¹/₂at²

s = (4 x 8.9) + ¹/₂(-0.45)(8.9)²

s = (4 x 8.9) - ¹/₂(0.45)(8.9)²

s = 17.8 m

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The work done on 85 N boxes of books while carried horizontally 4m across a room is equal to zero. Therefore, option (C) is correct.

Work can be demonstrated as the energy used when a force is exerted to move an object through a definite displacement. The work done defines both the exerted force on the object and the distance moved by the object.

The applied force moves an object in a straight line in the direction of the exerted force over a displacement 'd'.

W= F × d

Where 'F' is the exerted force and 'd' is the displacement and W is work done.

Given, the weight of the box = 80 N

The displacement , d = 4 m

In order for to work to be done the box should move in the direction of exerted force as the books are moving forward direction and the applied force in an upward direction to carry the box.

Therefore, the distance moved in the direction of force is zero so the work done is also equal to zero.

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Answer:

Explanation:

F = k * q * lambda * R * π * (1 - √2/2)

Substituting the given values of q, lambda, R, and k, we get:

F = (9 x 10^9 N*m^2/C^2) * (20 x 10^-9 C) * (1 x 10^-6 C/m) * (0.1 m) * π * (1 - √2/2)

F ≈ 8.58 x 10^-4 N

Therefore, the force of interaction between the half ring and the point charge is approximately 8.58 x 10^-4 N.

Yes, speedometer is consistent throughout the 59-104 km/h range. A speedometer, often known as a speed meter.

A speedometer, often known as a speed meter, is a meter that calculates and shows the current speed of a moving object. They began to be offered as choices inside the beginning of the 20th century and were standard equipment starting around 1910. Nowadays, they are fitted to all motor vehicles.

Some vehicles may utilize speedometer-like instruments, but with a different method of measuring speed. For instance, boats use pit logs, whereas airplanes use airspeed indicators. Yes, speedometer is consistent throughout the 59-104 km/h range.

Therefore, yes, speedometer is consistent throughout the 59-104 km/h range.

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Answer:

yes speedometer are at a 59-104 km/h

Explanation:

have a nice day.

Answer:

697 m

Explanation:

From the question above,

Note: Alice hears the splash of the rock in the well through the help of echo.

Applying,

v = 2x/t........................ Equation 1

Where v = speed of sound, x = depth of the well, t = time.

make x the subject of the formula in equation 1

x = vt/2................... Equation 2.

Given: v = 340 m/s, t = 4.1 s

Substitute these values into equation 2

x = 340(4.1)/2

x = 697 m.

Answer:

the same question I want to know

a. Spheres A and B carry the same charge \(\rm \( Q \)\), the force can be written as:

\(\rm \[ F = \frac{k Q^2}{R^2} \]\), b. The net force on sphere A now is the force due to sphere B, which is: \(\rm \[ F = \frac{k \frac{Q}{2} \cdot Q}{R^2} = \frac{k Q^2}{2R^2} \]\), c. The magnitude of the force on sphere A in this third case is \(\rm \( \frac{3}{8} \)\) of the original force.

a) The magnitude of the force (F) sphere B exerts on sphere A can be calculated using Coulomb's law:

\(\rm \[ F = \frac{k Q_1 Q_2}{R^2} \]\)

where:

k is Coulomb's constant \(\rm \( k = \frac{1}{4\pi\epsilon_0} \)\) where \(\rm \( \epsilon_0 \)\) is the vacuum permittivity constant),

\(\rm \( Q_1 \)\) and \(\rm \( Q_2 \)\) are the charges on spheres A and B respectively, and

\(\rm \( R \)\) is the distance between the two spheres.

Since both spheres A and B carry the same charge \(\rm \( Q \)\), the force can be written as:

\(\rm \[ F = \frac{k Q^2}{R^2} \]\)

b) When an identical sphere C makes contact with sphere B, they share the charge equally. Sphere B now carries \(\rm \( \frac{Q}{2} \)\) charge, and sphere C carries \(\rm \( \frac{Q}{2} \)\) charge.

When sphere C is moved far away, it exerts no force on sphere A. So, the net force on sphere A now is the force due to sphere B, which is:

\(\rm \[ F = \frac{k \frac{Q}{2} \cdot Q}{R^2} = \frac{k Q^2}{2R^2} \]\)

c) When sphere C makes contact with sphere A, they both share the charge equally. Each sphere now carries \(\rm \( \frac{Q}{2} \)\) charge.

When sphere C is moved far away, the net force on sphere A now is the force due to the charge on sphere A itself, which is:

\(\rm \[ F = \frac{k \frac{Q}{2} \cdot \frac{Q}{2}}{R^2} \\\\\rm = \frac{3}{8} \frac{k Q^2}{R^2} \]\)

So, the magnitude of the force on sphere A in this third case is \(\rm \( \frac{3}{8} \)\) of the original force.

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Answer:

B. holding a coffee mug

Explanation:

Something must move a distance for work to be done.

The centripetal force pulling the weight inward is 19.7 N. The closest option to this value is option (D), 19.7 N.

What is Centripetal Force?

Centripetal force is a force that acts on an object moving in a circular path, directing it toward the center of the circle. In other words, it is the force required to keep an object moving in a circular path, rather than flying off in a straight line. The word "centripetal" comes from the Latin words "centrum", which means "center", and "petere", which means "to seek or aim for".

The centripetal force, which is the force acting on an object moving in a circular path, is given by the formula:

F = m * v^2 / r

where F is the centripetal force, m is the mass of the object, v is its velocity, and r is the radius of the circular path.

In this case, the mass of the weight is 770 g, or 0.77 kg, the velocity is 4.24 m/s, and the radius is 0.94 m.

F = (0.77 kg) * (4.24 m/s)^2 / 0.94 m

F = 19.7 N

Therefore, the centripetal force pulling the weight inward is 19.7 N. The closest option to this value is option (D), 19.7 N.V

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Yes, if a body is floating in a liquid, the rise in the liquid level is equal to the body height. This phenomenon is known as Archimedes' principle.

Archimedes' principle says when a body is immersed in a fluid (liquid or gas), it experiences an upward buoyant force equal to the weight of the fluid displaced by the body. Buoyant forces act in the opposite direction to gravity.

When a body floats in a liquid, it displaces a volume of liquid equal to its volume. As a result, the liquid level rises by an amount equal to the height of the submerged part of the body.

This principle holds for objects that float or are partially immersed in a liquid, such as a buoyant boat or a floating object. However, if the body sinks completely into the liquid, the liquid level rise will no longer be equal to its height. Instead, it depends on the density and volume of the submerged object.

The frequency of the electromagnetic waves that are deflected by 10 degrees by the comb with 2 mm spacing is 857 GHz (gigahertz).

The equation for the angle of deflection is given by:

sin(θ) = mλ/d

where m is the order of the diffraction peak, λ is the wavelength of the electromagnetic wave, and d is the spacing between the comb teeth.

The spacing of the comb teeth is 2 mm, and waves that are deflected by 10 degrees. Assume that order of the diffraction peak is 1.

Frequency, f = c/λ

where c is the speed of light, and λ is the wavelength.

Plugging in the given values, we get:

λ = 2 mm * sin(10 degrees) / 1 = 0.35 mm

f = 3 x 10^8 m/s / (0.35 mm) = 857 GHz

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Answer:

See below

Explanation:

Horizontal component of the velocity will carry the ball to the fence in how long?

Hor vel = 50 cos 30 = 43.3 m/s       200m  /  43.3 m/s = 4.61 seconds

Vertical position given by

Df = vo t + 1/2 a t^2       with t = 4.61 secs       vo = 50 sin 30

Df = height =   11 m     <===== will not clear the fence

Answer:

B.

Explanation:

When equal forces are exerted onto eachother, they are exerting equal pressure since they are stationary.

Answer:

I don't no the answer sorry

The minimum coefficient of static friction with the floor is 0.3846.

To find the minimum coefficient of static friction with the floor, we need to consider the forces acting on the couch. In this case, the force of gravity is pulling the couch downward with a magnitude of mg, where m is the mass of the couch (40 kg) and g is the acceleration due to gravity (9.8 m/s²).

Since the couch does not move, the force of static friction between the couch and the floor must be equal in magnitude but opposite in direction to the horizontal pushing force of 150 N.

Therefore, we have the equation F_friction = F_push, where F_friction is the force of static friction.

The force of static friction can be calculated using the formula F_friction = μ_s * N, where μ_s is the coefficient of static friction and N is the normal force.

Since the couch is on a level floor and is not accelerating vertically, the normal force N is equal in magnitude but opposite in direction to the force of gravity, which is mg.

Substituting the values into the equation, we have μs * mg = 150 N.
Solving for μs, we get μs = 150 N / (mg).
Substituting the given values, we have μ_s = 150 N / (40 kg * 9.8 m/s²).
Simplifying, we find that μs = 0.3846.

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The slope of the graph represent for ohmic material is as per the graph is that the current will increases with increase in potential.

Ohmic material is defined as anything that complies with Ohm's law, according to which the current flowing through a device is proportional to the applied voltage. Ohmic materials are those that adhere to Ohm's law.

Ohm's Law describes the relationship between voltage and current, and the resistance in a circuit is represented by the slope of the line from a graph of the two quantities. The slope of the distance-time plot, or the speed of the body, is the ratio of the distance traveled by the body to the time required for travel.

Thus, the slope of the graph represent for ohmic material is as per the graph is that the current will increases with increase in potential.

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In each balanced equation, the number of atoms for each element is the same on both sides of the equation, which satisfies the law of conservation of mass.

Combustion of Methane:

CH₄ + 2O₂ → CO₂ + 2H₂O

Synthesis of Water:

2H₂ + O₂ → 2H₂O

Neutralization Reaction:

HCl + NaOH → NaCl + H₂O

Decomposition of Hydrogen Peroxide:

2H₂O₂ → 2H₂O + O₂

Photosynthesis:

6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂

Now let's balance each equation:

Combustion of Methane:

CH₄ + 2O₂ → CO₂ + 2H₂O

Synthesis of Water:

2H₂ + O₂ → 2H₂O

Neutralization Reaction:

HCl + NaOH → NaCl + H₂O

Decomposition of Hydrogen Peroxide:

2H₂O₂ → 2H₂O + O₂

Photosynthesis:

6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂

In each balanced equation, the number of atoms for each element is the same on both sides of the equation, which satisfies the law of conservation of mass. Balancing chemical equations is a process of adjusting the coefficients in front of each compound or molecule to ensure that the number of atoms of each element is equal on both sides of the equation.

Balancing equations is an important skill in chemistry as it helps us understand the reactants, products, and stoichiometry of a chemical reaction. It allows us to determine the relative amounts of substances involved in a reaction and predict the outcome of the reaction.

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Answer:

The magnification would be "103.55". A further explanation is given below.

Explanation:

The given values are:

Distance between lens and eyepiece,

L = 85 cm

Eyepiece is,

= 123 D

Now,

The refractive power of eye piece will be:

⇒ \(\frac{1}{f_e}=123D\)

   \(f_e=\frac{1}{123D}\)

   \(f_e=0.813 \ cm\)

The length of the telescope will be:

⇒ \(L=f_0+f_e\)

⇒ \(f_0=L-f_e\)

On substituting the values, we get

⇒     \(=85-0.813\)

⇒     \(=84.187 \ cm\)

Now,

The magnification of the telescope will be:

⇒ \(M=\frac{f_0}{f_e}\)

⇒      \(=\frac{84.187}{0.813}\)

⇒      \(=103.55\)

Answer:

Explanation:

In thermodynamics, an adiabatic process is a type of thermodynamic process which occurs without transferring heat or mass between the system and its surroundings.Unlike an isothermal process, an adiabatic process transfers energy to the surroundings only as work. It also conceptually supports the theory used to explain the first law of thermodynamics and is therefore a key thermodynamic concept.

The system takes in heat but does not release it. If an adiabatic process is reversible, there is no change in entropy; otherwise, there is a rise in entropy, or degree of disorder.

What is adiabatic process?

A thermodynamic process known as an adiabatic process takes place when there is no exchange of mass or heat between the system and its surroundings.

An adiabatic process only transfers energy to the environment as work, in contrast to an isothermal process.

The system's overall heat remains constant since there is no heat exchange with the environment.

It is a fundamental idea in thermodynamics and theoretically supports the theory that underlies the first law of thermodynamics.

Therefore, no heat flow in and out of system, which is a characteristic of an adiabatic process.

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Answer:

interference is between destructive  and constructive

Explanation:

The interference of two sound waves periodicity in phase by the speakers is

          Δr = \(\frac{\phi }{2\pi } \ \lambda\)

in this case they indicate that the frequency is f = 700 Hz, the wave speed is

            v =λ f

            λ = v / f

            λ = 341/700

            λ = 0.487 m

Let's use the Pythagorean theorem to find the distance that each wave travels

        r₁ = \(\sqrt{x^2 + y^2}\)

let's measure the distance from speaker 1

          r₁ = \(\sqrt{5^2 + 1^2}\)

          r₁ = 5,099 m

the distance from the second speaker

          r₂ = \sqrt{x^2 + y^2}

          r₂ = \(\sqrt{5^2 +3^2}\)

          r₂= 5.831 m

the difference in the way is

          Δr = r₂ -r₁

          Δr = 5,831 - 5,099

          Δr = 0.732 m

         \(\frac{ \phi }{2\pi }\) = Δr /λ

         \frac{ \phi }{2\pi } = 0.732 / 0.487

         \frac{ \phi }{2\pi } = 1.50

this is the phase difference this phase difference is approximately

            Ф= \(\frac{\pi }{2}\) =1.57,

so the interference is between destructive ( Ф = π) and constructive (Ф=2π)

Answer:

Explanation:

The speed in the medium is always slower than the speed in a vacuum.

Based on the diagram, the correct statement is: Government and consumers make economic decisions in a mixed economy, while consumers make economic decisions in a market economy.

In a mixed economy, economic decisions are made by both the government and consumers.

The government plays a significant role in regulating and influencing economic activities through policies, regulations, and interventions.

In market economy, economic decisions are primarily made by consumers. The market forces of supply and demand dictate the allocation of resources, production levels, and pricing.

The freedom to buy and sell whatever they choose is what ultimately determines how commodities and services are produced and distributed.

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Answer:

False.

Explanation:

The voltage of a disconnected charged capacitor decreases when the plates are brought closer together because the capacitance is inversely proportional to the area. If the area between plates decreases, its capacitance increases and vice versa. There is direct relationship between voltage of a disconnected charged capacitor and plates. If the distance between plates decreases, the voltage of a disconnected charged capacitor is also decreases while on the other hand, if the distance between plates increases, the voltage of a disconnected charged capacitor is also increases.

An autobiography, like a memoir, is the writer's recounting of his or her life and is written in the first person, making the writer the protagonist of the narrative.

Contemporary/Realistic: In order to accurately portray our environment and society, realistic fiction develops fictional people and circumstances. Growing up and dealing with social and personal issues are the main themes. Characters in this genre are depicted as they learn about both themselves and others.

Historical and contemporary fiction make up realistic fiction's two subgenres. Unlike current fiction, which takes place in the present or recently past, historical fiction takes place at a period that is far enough back in history to be deemed history.

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Answer: the answer is b

Explanation:

edge

Answer:

Narendra Modi

Explanation:

The answer depends on what year you are talking about on, Narendra Modi was a prime minister of india since 2014. If you are missing information on your question tell me so I can try and tell you the answer,

Hope this helped,

have a good day :]

Answer and Explanation:

So that the above seems to be the right answer.

Answer:

A. True

Explanation:

Given that there is approx 4.7 billion salt tons in the Great Salt Lake due to which it extremely dense the water.

So if a group of swimmers dives in that so it would be easy to stay afloat as we know that the salt density is greater or more than as if we compared to the water that results into upward buoyant force is large

Therefore as per the situation, the given statement is true