A problem with the planetary or solar system model of the atom was that if electrons really orbit around the nucleus, the charge in acceleration should cause __________ radiation to be given off by the electron which would eventually cause the electron to lose its charge. split

Answer:

!

Explanation:

Sedimentary rocks originate when particles settle out of water/air, or by precipitation of minerals from water. They accumulate in layers. The most important processes that lead to the creation of sedimentary rocks are erosion, weathering, dissolution, precipitation, and lithification.

Metamorphic rocks result when other rocks are changed by heat, pressure, or reactive fluids, such as hot, mineral-laden water, and sometimes a combination of all these factors. These conditions are found deep within the Earth or where tectonic plates meet.

A sedimentary rock is a rock formed through weathered and compacted sediments. These kinds of rocks undergo five major stages: erosion, deposition, weathering, compaction, and cementation. Through the breaking down and combining of scattered sediments, sedimentary rocks are formed.

A metamorphic rock is typically thought of as a rock that undergoes intense heat and pressure in the mantle of Earth. This kind of rock can be formed from any kind of process, as long as it goes through a phase of extreme exposures to heat. Metamorphic rocks are common underground. These rocks eventually rise to Earth's surface, and they cool and crystallize to become igneous rocks.

The scale will read 147N

The mass of the object, m = 15 kg

Since I am on the earth, the acceleration due to gravity on the earth is:

g = 9.8 m/s²

The scale will read the weight of the object, and is calculated below

The weight, W = mg

W = 15(9.8)

W = 147 N

Therefore, the scale will read 147N

Decrease in potential difference causes decrease in potential energy.

A dielectric produces an internal electric field when it is exposed to an electric field because the dielectric is polarized. The potential difference between the plates is caused by the internal electric field within the dielectric, which is in the opposite direction of the field between the plates of the capacitor. As a result, the effective electric field between the plates of the capacitor diminishes.

E = ΔV/Δr

Where, Δr = distance between plates, which is constant

Potential energy of a capacitor is;

U = (1/2)qΔV

Where, Charge is constant .

Therefore, potential energy U likewise drops as a result of the potential difference V being smaller.

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The hydrostatic equation for pressure can be used between points that are at the same height and in a fluid at rest. In the image shown, the flow is steady and inviscid, and point (2) is a stagnation point. This means that the fluid is not moving at point (2), and the pressure at this point is equal to the stagnation pressure.
The correct answers are:
-> 1 and 4
-> 1 and 3

The hydrostatic equation for pressure can be used between the following pairs of points:
- 1 and 4: These points are at the same height and in a fluid at rest, so the hydrostatic equation for pressure can be used between them.
- 1 and 3: These points are also at the same height and in a fluid at rest, so the hydrostatic equation for pressure can be used between them.

The hydrostatic equation for pressure cannot be used between the following pairs of points:
- 1 and 2: These points are not at the same height, so the hydrostatic equation for pressure cannot be used between them.
- 3 and 4: These points are not at the same height, so the hydrostatic equation for pressure cannot be used between them.
- 2 and 5: These points are not at the same height, so the hydrostatic equation for pressure cannot be used between them.

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The amount of work requires is W=\(\frac{4qq_{o}}{225\pi e_{o}R^{2} }\)

What is a sphere?

A sphere is a spherical, three-dimensional object. Three axes—the x, y, and z axes—are used to define the sphere. Between a circle and a sphere, this is the primary distinction. Like other 3D objects, a sphere has no edges nor vertices.

Given

Radius of Conducting Sphere is R with Positive charge q

Small sphere is at a distance of r=5 R which is required to move slowly to r=3 R

So, Electric Potential Energy Between two Charged Particle will be

U=k.\(\frac{q_{1}q_{2}}{r^{2} }\)

Now, the initial potential energy

\(U_{1}\)=k.\(\frac{qq_{o}}{5R^{2} }\)

\(U_{1}\)= k.\(\frac{qq_{o}}{25R^{2} }\)

at r=3R

\(U_{2}\)= k. \(\frac{qq_{o} }{(3R)^{2} }\)

\(U_{2}\) = k. \(\frac{qq_{o} }{9R^{2} }\)

Work done=\(U_{2}\)-\(U_{1}\)

W = k. \(\frac{qq_{o}}{9R^{2} }\) - k. \(\frac{qq_{o}}{25R^{2} }\)

W = k. \(\frac{qq_{o}}{R^{2} }\) \(\left[\frac{1}{9}-\frac{1}{25}]\)

W = k. \(\frac{qq_{o}}{R^{2} }\).\(\left[\frac{16}{225} ]\)

W = \(\frac{1}{4\pi e_{o} }\).\(\frac{qq_{o}}{R^{2} }\).\(\left[\frac{16}{225} ]\)

W= \(\frac{4qq_{o} }{225\pi e_{o}R^{2} } }\)

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The kinetic energy of a proton entering a uniform magnetic field that is perpendicular to the proton's velocity remains the same.

When a charged particle, such as a proton, enters a uniform magnetic field that is perpendicular to its velocity, it experiences a force called the magnetic Lorentz force. This force acts as a centripetal force, causing the proton to move in a circular path. The magnetic Lorentz force does not change the speed or kinetic energy of the proton. Instead, it changes the direction of motion, making the proton move in a circular path perpendicular to both its initial velocity and the magnetic field lines. While the proton's direction of motion changes, its speed remains constant, and therefore, its kinetic energy remains unchanged.

It's important to note that if the magnetic field was not perpendicular to the proton's velocity, the proton's motion would be more complex, and the magnetic field could potentially influence its kinetic energy. However, in the given scenario where the magnetic field is perpendicular to the proton's velocity, the kinetic energy of the proton stays the same.

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The capacitance of the capacitor if the dielectric constant of the paper is 3.7 :  18 nF

Given data :

Thickness of aluminium capacitor = 0.022 mm

Number of sheets = 500

Thickness of ream = 5.5 cm = 0.055 m

measurement of sheets = 0.216 m by 0.279 m

dielectric constant ( k ) = 3.7

we will apply the capacitance formula below

C = Kε₀A / d

  = 3.7 * 8.85*10⁻¹² * 0.216 *0.279 / ( 0.055 / 500 )

  = 1.8 * 10⁻⁸F ≈ 18nF

Hence we can conclude that The capacitance of the capacitor if the dielectric constant of the paper is 3.7 :  18 nF

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Answer:

Q₁ = 15.78 KJ

W = 5.76 KJ

Explanation:

First we find efficiency of this ideal Carnot engine:

Efficiency = 1 - T₂/T₁

T₁ = source temperature = 125°C + 273 = 398 K

T₂ = Sink Temperature = -20°C + 273 = 253 K

Therefore,

Efficiency = 1 - 253 K/398 K

Efficiency = 0.365 = 36.5%

Now, we find expelled heat (Q₂), by using latent heat of fusion of ice:

Q₂ = mH

where,

m = mass of ice melted = 30 g = 0.03 kg

H = Latent Heat of Fusion of Ice = 3.34 x 10⁵ J/kg

Therefore,

Q₂ = (0.03 kg)(3.34 x 10⁵ J/kg)

Q₂ = 1.002 x 10⁴ J = 10.02 KJ

Now, we use another formula of efficiency to find absorbed heat (Q₁):

Efficiency = 1 - Q₂/Q₁

0.365 = 1 - 10.02 KJ/Q₁

10.02 KJ/Q₁ = 1 - 0.365

Q₁ = 10.02 KJ/0.635

Q₁ = 15.78 KJ

Now, for work done we have the formula:

W = Q₁ - Q₂

W = 15.78 KJ - 10.02 KJ

W = 5.76 KJ

Answer:

static electricity

Explanation:

Answer:

B. 0.4 N/cm

Explanation:

While stretching a spring 20 cm past its natural length, it exerts a force of 8 N. What is the spring constant of this spring is 0.4 N / cm, the correct option is B.

The spring constant is used to define the stiffness of the spring, the greater the value of the spring constant stiffer the spring and it is more difficult to stretch the spring.

The mathematical relation for calculating the spring constant is as follows

F = - Kx

where F represents the Force

x represents the amount of stretch in the spring

K represents the value of the spring constant

For given problem

F= 8 N and x = 20 cm

K = F/x

   =8/20 N/ cm

   =0.4 N / cm

The spring constant for the spring is 0.4 N/ cm

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Answer:

A)It would stay stationery as the resultant force is 0.

B)It would move towards the right as the resultant force is 300N due right.

C)It would move left as the resultant force is 300N due left.

Explanation:

Please make it brainiest answer

Answer:

I don't know what you mean about which changes occurred in this process but if its why the dough starts rising then its caused by the carbon dioxide in baking soda and yeast which is a fungus

Answer:

When baking,flour is mixed with water,the other ingredients and yeast to form a paste called a dough.what happens is that the zymase enzyme from the yeast acts on the sugars to form carbon dioxide and alcohol.the carbon dioxide begins to form bubbles in the dough causing it to rise..

I hope this helps

Answer:

transcranial

Explanation:

pls mark brainliest

Answer: Solids: Solids are made up of particles that are in a tightly packed pattern, with barely any room for movement. Liquids: Liquids are made of particles that are loosely packed in no distinct arrangement. Gas: Gases are made of particles that are free-floating with no distinct arrangement.

Answer:

Explanation:

Matters normally exist in three states viz. solid, liquid and gas.

Particles in these states have different arrangements.

Intermolecular space i.e., the space between molecules changes with change of space.

The order of intermolecular space is

The following factor that has no effect on the period of an oscillating mass-spring system is C. g (the local acceleration due to gravity).

In a mass-spring system, the period of oscillation depends on the mass (m) and the spring stiffness (k). The period can be determined using the formula T = 2π√(m/k), where T is the period, m is the mass, and k is the spring stiffness. Gravity, however, does not influence the period of oscillation in this scenario because the system is oscillating horizontally, and the force of gravity acts vertically.

As a result, the gravitational force does not contribute to the restoring force exerted by the spring. Therefore, the local acceleration due to gravity does not affect the period of oscillation in a mass-spring system. So the correct answer is C. g (the local acceleration due to gravity).

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Answer:

The average speed of the cyclist is 18 \(\frac{km}{hour}\)

Explanation:

Speed ​​is a magnitude that expresses the relationship between the space traveled by an object, the time used for it and its direction. Because it considers direction, it is a vector quantity.

Then the average speed is the quotient of the space traveled by an object and the time it takes to cover the distance traveled:

\(speed=\frac{distance}{time}\)

In this case:

Replacing:

\(speed=\frac{90 km}{5 hours}\)

Solving:

\(speed=18\frac{ km}{ hour}\)

The average speed of the cyclist is 18 \(\frac{km}{hour}\)

Answer:

400m

Explanation:

From Newton's law of motion;

S = ut + 1/2 at2

Where U is initial velocity

a is acceleration

t is velocity hence;

S is distance covered

S = 20×10 + 1/2 × 4×(10)^2

= 200 + 200 = 400m

The block would accelerate down the inclined plane. The force applied is greater than the maximum force of static friction. The correct answer is (B).

Angle of inclination of plane, θ = 30, Coefficient of static friction, µs = 0.2, Coefficient of kinetic friction, µk = 0.2The block is stationary, A block (A) remains stationary on the inclined plane, which implies that the force of static friction fsmax acting upwards balances the force of gravity mgsinθ acting downwards.

Using the formula of maximum force of static friction, we get; fsmax = µs x mg cosθ = 0.2 x mg x cos 30 ......(1)Also, the maximum force of static friction, in this case, is less than the force of gravity acting downwards. Hence, the block will slide down the incline.

On substituting the values in eq. (1), we get; fsmax = (0.2) (9.8) (0.866) ≈ 1.69 N. The force of gravity acting on the block will be; Fg = mg sinθ = 0.5mg N. Since the force applied, Fapp is greater than fsmax, the block will accelerate down the plane. So, the correct answer is (B).

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Since the cosine function is equal to 1 when its argument is equal to an even multiple of π/2, and -1 when its argument is equal to an odd multiple of π/2, we can see that the wave function has antinodes at both ends of the machine .

The boundary conditions for a machine that is unclamped at both ends are that the displacement (y) of the machine at both ends is equal to zero. Mathematically, this can be written as:

y(0, t) = 0 and y(L, t) = 0

Substituting these boundary conditions into the given formula for the wave function, we get:

y(0, t) = Am cos(2πfmt)cos(0) = 0

y(L, t) = Am cos(2πfmt)cos(mπL/L) = 0

Since the cosine function is equal to zero when its argument is equal to an odd multiple of π/2, we can set the argument of the second cosine function equal to (2n - 1)π/2, where n is an integer. This gives us:

mπL/L = (2n - 1)π/2

Solving for m, we get:

m = (2n - 1)(2/L)

Therefore, the possible values of m are odd multiples of (2/L), i.e., m = 1/L, 3/L, 5/L, and so on.

Substituting these values of m back into the wave function, we get:

y(x,t) = Am cos(2πfmt)cos(mπx/L) = Am cos(2πfmt)cos((2n - 1)πx/2L)

Since the cosine function is equal to 1 when its argument is equal to an even multiple of π/2, and -1 when its argument is equal to an odd multiple of π/2, we can see that the wave function has antinodes at both ends of the machine (i.e., at x = 0 and x = L) when n is even, and nodes at both ends when n is odd.

Therefore, we have shown that the wave function for a machine that is unclamped at both ends has antinodes at both ends.

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The ampacity of supply feeders and the current rating of overcurrent protective devices supplying two or more branch circuits supplying X-ray units shall not bet less than 50 percent of the momentary demand rating of the largest unit plus 25 percent of the momentary demand rating of the next largest unit plus 10 percent of the momentary demand rating of each additional unit.

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If 120 g of NaOH were used to prepare 500 ml of solution, the concentration would be 6 M

Molarity = ( Weight of solute * 1000 ) / ( GMV * V )

GMV = Gram molecular weight

V = Volume of solution

GMV of NaOH = 26 + 16 + 1

GMV of NaOH = 40

Molarity = ( 120 * 1000 ) / ( 40 * 500 )

Molarity = 120 / 20

Molarity = 6

Molarity or molar concentration is the concentration of chemical species mainly solute in a solution. It is the amount of substance per unit volume of solution.  

Therefore, the concentration of NaOH is 6 M

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Answer:

I guess the answer is charging by friction

The final volume of the balloon is 197,083 L.

They are proportional to each other if the pressure does not change. However, there are pitfalls. To perform calculations we have to use the so-called absolute temperature. Increased external air pressure compresses the balloon.

Using equation;

PV =nRT

here constants are P,n, R

so the relation between P and T is

V₁ /T₁= V₂/T₂

V₂ = (V₁ /T₁)×T₂

    = (125,000/300)×473

     = 197,083 L.

As the volume of the balloon decreases the pressure inside the balloon increases. After all external air pressure can compensate. It becomes a balloon filled with dense cold air. According to Boyle's law, the volume of a gas of constant mass at constant temperature is inversely proportional to its pressure. The air around you has weight and pushes away everything it touches. This pressure is called atmospheric pressure or barometric pressure. This is the force exerted on a surface by the air above as gravity pulls the surface toward the Earth.

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Energy is being produced in two different ways.

1st. when you run, exercise, etc allot of energy is being produced from your body in form of heat.

2nd. energy which is in form of coal, electricity, gas etc.

Definition: the capacity for doing work. It may exist in potential, kinetic, thermal, electrical, chemical, nuclear, or other various forms. There are, moreover, heat and work—i.e., energy in the process of transfer from one body to another.

hope this helps you

have a great day :)

Once installed, backward-curved centrifugal fans can significantly reduce your energy expenditures since they have a high static efficiency that is uncommon for other centrifugal fans.

In comparison to the backward curved impeller, the forward curved impeller is significantly quieter and, because of the increased number of blades, produces a noise spectrum with a much wider bandwidth and, as a result, lesser energy in any region of the spectrum.

The cylindrical design, numerous sizable curved blades, and conical input nozzle of a backward curved centrifugal fan are its distinguishing features. At high pressure, these centrifugal fans offer excellent cooling.

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Skateboarders move more quickly and more slowly depending on the gravitational field around them.

Skateboarders go more slowly and more quickly depending on the amount of friction they encounter. The skater initially has no kinetic energy, only potential energy. The skater had used all of the energy that she will ever have. Since the track is frictionless, no energy is converted to thermal energy throughout the route from point A to point B. The skater has greater potential energy the higher he is. His kinetic energy increases and his potential energy falls as his height decreases. Ice skating is a good illustration of sliding friction.

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