Find the equivalent resistance from the indicated terminal pair of the networks in the attached doc

Answer:

a) 1.19 x 10^7 N/C

b) 2 x 10^-12 N

Explanation:

field due to Cl on (9.0xE¡)(1.6x10-19 C) (1.5Å—10-9m) -6.4x10 N/C field due to Ca+3 ion, 2(90x10 (1.6x10-19c) ((4.5-1.5)Å—10-9 m)' magnitude of net field at given point without dielectric E E+E 6.4x108 +3.2x108-9.6x10 N/C magnitude of net field at given point with di electric K 80.4 the force on sodium ion at this point, F-Edq= (1.19å—107 N/C)(1.6å—10-19C)= 2.0Å—10-12 N

Answer:

A....It is a crime sene

Explanation:

1) The electric potential energy of the block-spring system is approximately 22.03 J.

2) The block's speed after leaving the spring is approximately 2.165 m/s.

1) To calculate the electric potential energy of the block-spring system, we need to consider the potential energy stored in the spring when it is compressed. The formula for the potential energy stored in a spring is given by:

\(PE =\) \((1/2) k x^2\)

where PE is the potential energy, k is the spring constant, and x is the displacement (compression) of the spring.

Given that the spring constant, k, is 785 N/m and the displacement, x, is 0.0750 m, we can substitute these values into the formula:

\(PE =\) \((1/2) * 785 * (0.0750)^2\) = 22.03125 J

2) When the block is released, it will experience a conversion of potential energy stored in the spring into kinetic energy as it accelerates. Since the surface is frictionless, there are no dissipative forces, and the conservation of mechanical energy can be applied.

The potential energy stored in the spring is given by the equation:

\(PE =\) \((1/2) mv^2\)

where m is the mass of the block and v is its velocity.

By equating the initial potential energy to the final kinetic energy, we can solve for the velocity of the block:

\((1/2) k x^2 = (1/2) mv^2\)

Simplifying the equation:

\(v^2 = k/m * x^2\)

\(v = sqrt(k/m) * x\)

Substituting the given values:

v = sqrt(785/2.8) * 0.0750 ≈ 2.165 m/s

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Answer:

is this a company name.? java is a computer software right..

Battery-powered clocks and Washing machines are objects that transform chemical energy into mechanical energy.

Chemical energy is a type of energy that is stored in the bonds of a chemical. It is converted into thermal energy when people burn wood or burn gasoline in the engine of a car. Mechanical energy is a type of energy that is stored in objects by tension. Compressed springs and stretched bands are examples of mechanical energy.

Mechanical energy i.e. kinetic energy or potential energy is the energy that is present in an object in motion or the energy that is stored in objects due to their position. Mechanical energy is a type of renewable energy.

So we can conclude that options A and C are the correct answers.

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Answer:

The angular width is "\(1.575\times 10^{-3} \ rad\)" and the linear width is "\(2.835\times 10^{-3} \ m\)".

Explanation:

Given:

Wavelength,

\(\lambda = 630 \ nm\)

or,

  \(=630\times 10^{-9} \ m\)

Slit width,

\(a = 0.8 \ mm\)

or,

  \(=0.8\times 10^{-3} \ m\)

Distance between slit and screen,

\(D = 1.8 \ m\)

As we know,

The central bright fringe's angular height,

⇒ \(\theta = \frac{2 \lambda}{a}\)

       \(= \frac{2\times 630\times 10^{-9}}{0.8\times 10^{-3}}\)

       \(=1.575\times 10^{-3} \ rad\)

and,

The linear width will be:

⇒ \(x_o=\frac{2D \lambda}{a}\)

By substituting the values, we get

        \(=\frac{3\times 1.8\times 630\times 10^{-9}}{0.8\times 10^{-3}}\)

        \(=2.835\times 10^{-3} \ m\)

Answer:

The vertical component of the velocity can be found using the formula:

V₀y = V₀ * sin(θ)

where V₀ is the initial velocity, θ is the angle of projection, and V₀y is the vertical component of the velocity.

Substituting the given values, we have:

V₀y = 48 * sin(53°)

Using a calculator, we can evaluate sin(53°) to be approximately 0.799:

V₀y = 48 * 0.799

V₀y ≈ 38.352

Therefore, the vertical component of the velocity with which the ball was launched is approximately 38 meters/second, which corresponds to option B.

Answer:

B.) 38 meters/second

Explanation:

The net force on particle q₂ is approximately 773.1 N.

To determine the net force on particle q₂, we need to consider the electrostatic forces between q₁ and q₂, as well as between q₂ and q₃. The net force will be the vector sum of these individual forces.

The electrostatic force between two charged particles is given by Coulomb's Law:

F = k * |q₁ * q₂| / r²

where F is the force, k is the electrostatic constant (9 x 10^9 N m²/C²), q₁ and q₂ are the magnitudes of the charges, and r is the separation distance between the charges.

First, let's calculate the force between q₁ and q₂:

F₁₂ = k * |q₁ * q₂| / r₁₂²

F₁₂ = (9 x 10^9 N m²/C²) * |(-20.5 µC) * (-9.30 µC)| / (0.980 m)²

F₁₂ = (9 x 10^9 N m²/C²) * (20.5 x 10^-6 C) * (9.30 x 10^-6 C) / (0.980 m)²

F₁₂ ≈ 355.5 N

The positive sign indicates that the force between q₁ and q₂ is repulsive, pointing away from q₁.

Next, let's calculate the force between q₂ and q₃:

F₂₃ = k * |q₂ * q₃| / r₂₃²

F₂₃ = (9 x 10^9 N m²/C²) * |(-9.30 µC) * (-31.6 µC)| / (0.750 m)²

F₂₃ = (9 x 10^9 N m²/C²) * (9.30 x 10^-6 C) * (31.6 x 10^-6 C) / (0.750 m)²

F₂₃ ≈ 417.6 N

The positive sign indicates that the force between q₂ and q₃ is repulsive, pointing away from q₂.

Now, to find the net force on q₂, we need to sum up the forces:

Net force = F₁₂ + F₂₃

Net force ≈ 355.5 N + 417.6 N

Net force ≈ 773.1 N

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Answer: -2.92 N I know that because I done a lot of research and I have it in my notes :)

The work done by the given force should be -45 joules

Since force acts in the negative y direction

So,

F = -15j

here the displacement vector is d = 3i+3j-1k

Now

work done is W = dot product of force and displacement

                        = [-15j ] . [ 3i+3j-1k]

                        =-45 joules

Therefore, The work done by the given force should be -45 joules

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Answer:16

Explanation:

as F=BIL so by placing value's B is magnetic field 4 and i is current 2A and l is length that js 2 m so answer is

Given: i=10A,B=0.15 T,θ=45

∘

and l=2 m

Force on a current carrying wire of finite length =

F

=l(

i

×

B

)

Hence, magnitude of force, F=Bilsinθ

=0.15×10×2×sin45

∘

=

2

3

N

Answer:

towards the west

One can conclude that the magnetic field must have a component towards the east. The correct option is c.

A magnetic field is a vector field that describes the magnetic influence on moving charges, currents, and magnetic materials.

A moving charge in a magnetic field is subjected to a force that is perpendicular to both its own velocity and the magnetic field.

Every magnet possesses a north as well as a south pole. The opposite poles attract each other, whereas the same poles repel each other.

When you rub a piece of iron against a magnet, the atoms' north-seeking poles line up in the same direction.

Moving north, a proton enters a magnetic field. The proton curves downward as a result of this field. We can conclude that the magnetic field must have an eastward component.

Thus, the correct option is c.

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The true statement is that the acceleration in the first two seconds is 6 m/s^2.

The term acceleration is defined as the rate of change of velocity with time. The graph as shown is a velocity time graph. The graph shows the changes that occur in the velocity over a given time interval.

Now  we have;

Initial velocity = 0 m/s

Final velocity = 12 m/s

Time taken = 2s

Acceleration = 12 - 0/2

= 6 m/s^2

Thus the true statement is that the acceleration in the first two seconds is 6 m/s^2.

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Answer:

Explanation:

a ) At constant pressure , work done = P x Δ V

= 200 x 10³ x ( .1 - .04 )

= 12 x 10³ J .

b )

At constant temperature work done

= n RT ln v₂ / v₁

= PV ln v₂ / v₁

= 200 x 10³ x .04 ln .1 / .04

8 x 10³ x .916

= 7.33 x 10³ J .

ANSWER

• radius: ,5 cm

• diameter: ,10 cm

• circumference: ,31 cm

EXPLANATION

If we assume that the cookie is round, when we cut it in half we'll have the following shape:

The straight side is the diameter of the cookie, which is 10 cm long.

The radius of a circle is half the diameter, hence the radius of the cookie is 5 cm.

The circumference is,

Where d is the diameter of the circle. In this case, this is 10cm,

The circumference of the cookie is 31 cm, rounded to the nearest whole number.

Answer:

the war of currents is

Explanation:

The war of currents was a series of events surrounding the introduction of competing electric power transmission systems in the late 1880s and early 1890s.

Answer:

a series of events surrounding the introduction of competing electric power transmission systems in the late 1880s and early 1890s

Explanation:

1. The light phenomena happen due to the refraction of light upon hitting the small crystals that make up cirrus or cirrostratus clouds is called Sundogs.

2.A light phenomena which are formed when light passes through clouds and strikes the ice crystals in them is called Halos.

3.A light phenomenon formed from the combination of several light properties like refraction, reflection, and dispersion is Rainbow.

4.  Rainbow are created after a rain shower and Sun light.

5. A visible accumulations of tiny water droplets or ice crystals.

in the Earth’s atmosphere are called Clouds.

6. There are seven colors in a rainbow.

7. The kind of rainbows are formed when light strikes small raindrops with almost the same size are Supernumerary rainbows.

8.The kind of rainbows are formed when two inner reflections are done instead of one; this causes the reversal of colors in a secondary rainbow in comparison to a primary rainbow are Secondary rainbows.

9. A reflective surface that is curved inward and away from the light source is concave mirror.

10. The kind of mirror are curved outward like the bottom

of a spoon is convex mirror.

When a light strikes on a shiny surface, it reflects back the light ray in the same medium. The phenomenon is called reflection and the ray is called the reflected ray.

Thus, all the questions are answered.

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Answer:

C- An explanation for why matter cannot be created or destroyed

Explanation:

Answer: A. A statement that matter cannot be created or destroyed.

Explanation:

Apex

Answer:

The components of the force in the x and y-direction are -153.21 N and 128.56 N respectively.

Explanation:

Rectangular components of a vector

Given a vector \(\vec F\) as an ordered pair (f,θ), where f is the magnitude of the vector and θ is the angle it forms with the positive x-direction, the rectangular components of the vector are given by:

\(F_x=f.\cos\theta\)

\(F_y=f.\sin\theta\)

The force of f=200N forms an angle of θ=140°. The components of the force are:

\(F_x=200.\cos 140^\circ\)

Calculating:

\(F_x=-153.21~N\)

\(F_y=200.\sin 140^\circ\)

\(F_y=128.56~N\)

The components of the force in the x and y-direction are -153.21 N and 128.56 N respectively.

The increase in the energy of an electromagnetic wave can be achieved only by decreasing the wavelength. Hence, option (d) is correct.

The given problem is based on the fundamentals of electromagnetic wave and the energy stored in an electromagnetic wave.

The mathematical expression for the energy carried out by the  electromagnetic waves is given as,

\(E = h \times \nu\\\\E = \dfrac{h \times c}{ \lambda}\)

Here,

h is the Planck's constant.

\(\nu\) is the frequency of the electromagnetic wave.

c is the speed of light.

\(\lambda\) is the wavelength of wave.

Clearly, the energy of electromagnetic waves is directly proportional to the frequency of wave and inversely proportional to wavelength. So, decreasing the wavelength, we can easily increase the energy of electromagnetic wave.

Thus, we can conclude that the increase in the energy of an electromagnetic wave can be achieved only by decreasing the wavelength. Hence, option (d) is correct.

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Explanation:

The negative value of the packing fraction indicates that the actual isotopic mass is less the mass number.

The total distance is 105 kilometers and the total displacement is 15 kilometers east. Option C

To calculate the total distance, we add the distances traveled in each leg of the journey: 60 kilometers (from A to B) + 45 kilometers (from B back to A) = 105 kilometers.

However, displacement refers to the change in position of an object in a straight line from its starting point to its ending point. In this case, since the boat starts and ends at the same point (A), the total displacement is zero.

Hence The total distance is 105 kilometers and the total displacement is 15 kilometers east.

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The potential and kinetic energy of the system at the following time instances is zero and maximum.

From the given,

The displacement of the system is, x = A cos(3πt/T)

1) At t =0, the displacement of the system is given by, x = cos(3π×0/T)= cos(0) = 1. The displacement is maximum at t=0. Hence, the potential energy is maximum and kinetic energy is zero.

2) At t=T, the displacement, x = cos(3πT/T)= cos(3π) = -1. The displacement is minimum and hence, the potential energy is minimum and kinetic energy is maximum.

3) At t = T/6, the displacement x = cos(3πT/6T)=cos(π/2)=0, the displacement is zero, and hence, both the potential and kinetic energy is zero.

4) At t=T/3, the displacement, x= cos(3πt/T)=cos(3πT/3)= -1. The displacement is minimum and hence, the potential energy is minimum and kinetic energy is maximum.

5) At t=T/2, the displacemetn x = cos(3πt/T) = cos(3πT/2T) = cos (3π/2)=0. Hence, both the potential and kinetic energy is zero.

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Answer:

75 cm/second.

Explanation:

Formula:

Walking speed = stride length / time per step

Walking speed = 90cm/time per step

                         = 90cm/1.2 seconds (a common estimate time per step)

                         = 75cm/second.

Answer: She adds different amounts of the chemical to the material and then puts them in the water

Explanation:

Answer: One group of fabric is treated with the chemical, and the other group is not. Then each group is exposed to water.

Explanation:

Answer:

θ = 57.4°

Explanation:

The complete formula to find out the work done by the plane is as follows:

\(W = FdCos\theta\)

where,

W = Work = 200000 J

F = Force = Tension = 2560 N

d = distance = 145 m

θ = angle between rope and horizontal = ?

Therefore,

\(200000\ J = (2560\ N)(145\ m)Cos\theta\\\\Cos\theta = \frac{200000\ J}{371200\ J}\\\\\theta = Cos^{-1}(0.539)\)

θ = 57.4°