what is the magnitude of the net force

The rotation of the angle of reflection from its original position is 20°.When a mirror is rotated at an angle.

Since the angle of incidence is equal to the angle of reflection, the angle of reflection also changes by 20° (twice the angle of rotation) from its original position. Therefore, the rotation of the angle of reflection from its original position is 20°. The rotation of the angle of reflection from its original position when a mirror is rotated at an angle of 10° is 20°.

According to the law of reflection, the angle of incidence is equal to the angle of reflection. When a mirror is rotated, both the angle of incidence and the angle of reflection change. If the mirror is rotated by 10°, the angle of incidence changes by 10°, and since the angle of reflection is equal to the angle of incidence, the angle of reflection also changes by 10°. Therefore, the total change in the angle of reflection is 10° + 10° = 20°.

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Based on damage in the photo, it is possible that the movement responsible could be from an earthquake.

Seismic waves spread through the ground in different ways when an earthquake occurs which often results to different types of waves. They includes:

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Answer:

F=ma

F=2300×5.5

F=12,650 Newtons

Explanation:

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Answer:

12,650

Explanation:

Force is equal to mass times acceleration

Answer:

the energy required for the extension is 12.25 J

Explanation:

Given;

force constant of trampoline spring, k = 800 N/m

extension of trampoline spring, x = 17.5 cm = 0.175 m

The energy required for the extension is calculated as;

E = ¹/₂kx²

E = 0.5 x 800 x 0.175²

E = 12.25 J

Therefore, the energy required for the extension is 12.25 J

Answer:

19.24 volts

Explanation:

From Ohm's law,

Applying,

V = IR.................. Equation 1

Where V = Voltage applied, I = currentflowing across the resistor, R = Resistance

From the question,

Given: I = 0.225 A, R = 85.5 Ohm

Substitute these values into equation 1

V = (0.225×85.5)

V = 19.24 volts

Hence the Voltage applied is 19.24 Volt

Answer:

19.24

Explanation:

acellus

Answer:

a) 24.33 m of distance.

b) 34.55° east of the south.

Explanation:

The question is incomplete. The whole exercise is the following:

"Ricardo and Jane are standing under a tree in the middle of a pasture. An argument ensues, and they walk away in different directions. Ricardo walks 28.0 m in a direction 60.0° west of north. Jane walks 12.0 m in a direction 30.0° south of west. They then stop and turn to face each other.

(a) What is the distance between them?

(b) In what direction should Ricardo walk to go directly toward Jane?"

Now that we know what we need to do in this question, let's head for every part of the problem.

a) Distance between Ricardo and Jane

In this case, we need to analyze the given data:

Ricardo (which we will call R) is 28 m from the starting point at 60° west of north, and Jane (J) is 12 m at 30° south of west. So the distance between them, will be the point where they both stop and face each other. This point can be seen in the image attached (See picture).

Let's call the distance between them as "D", to get the distance of D, according to the picture will be:

D = J - R   (1)

However, as they are facing in different angles and directions, we cannot do the difference of their values distance just like that. In order to do that, we need to calculate the components in the "x" and "y" axis of each vector. In that way, we can get the components of x and y of the Distance D, and then, the whole distance between them will be:

D = √Dx² + Dy²     (2)

So, let's get the components of x and y of R and J.

For Ricardo (R):

Rx = R sin60° = 28 sin60° = -24.25 m

Ry = R cos60° = 28 cos60° = 14 m

The sign "-" it's because R it's on the second quadrant, therefore in x, we'll have to add the negative.

For Jane (J):

Jx = J cos30° = 12 cos30° = -10.39 m

Jy = J sin30° = 12 sin30° = -6 m

Again, the negative is added because J is on the third quadrant.

Now that we have the components, let's calculate vector D using expression (1):

Dx = -10.39 - (-24.25) = 13.86 m

Dy = -6 - 14 = -20 m

Now, using expression (2) we can finally know the distance between Jane And Ricardo:

D = √(-20)² + (13.86)²

This is the distance between Jane and Ricardo.

b) Direction of Ricardo walking to Jane

In this case, we already have the components of x and y of the distance between them, so, to know the direction:

Tanα = Dy/Dx

α = tan⁻¹ (Dy/Dx)

Replacing the values we have:

α = tan⁻¹ (-20/13.86)

α = 55.45°

Which should south of east or:

β = 90 - 55.45

Ricardo should walk 34.55° east of south

Hope this helps

Approximately 2.8% of the incident unpolarized light is transmitted by the four polarizers.

The fraction of transmitted light through multiple polarizers can be calculated using Malus' Law, which states that the transmitted intensity (I) is proportional to the initial intensity (I₀) multiplied by the square of the cosine of the angle between polarizer axes (θ): I = I₀ * cos²θ.

For the first polarizer, 50% of the unpolarized light is transmitted. Then, for each successive polarizer, we use Malus' Law:

1. Angle between 1st and 2nd polarizer: 26.0°; fraction transmitted: cos²(26.0°)
2. Angle between 2nd and 3rd polarizer: 60.0° - 26.0° = 34.0°; fraction transmitted: cos²(34.0°)
3. Angle between 3rd and 4th polarizer: 90.0° - 60.0° = 30.0°; fraction transmitted: cos²(30.0°)

To find the total fraction of transmitted light, multiply the individual fractions:

Fraction = 0.5 * cos²(26.0°) * cos²(34.0°) * cos²(30.0°) ≈ 0.028

Thus, approximately 2.8% of the incident unpolarized light is transmitted by the four polarizers.

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The maximum angle in degrees between the ladder and the frictionless  wall if the coefficient of static friction between the ladder and the ground is 0.3 is 59.1°

Forces in vertical direction,

Fy = m g

Forces in horizontal direction,

Fx = μ m g

Moment at bottom of the ladder,

Fx L sin θ - Fy L cos θ / 2 = 0

μ m g L sin θ - m g L cos θ / 2 = 0

tan θ = 1 / 2 μ

tan θ = 1 / ( 2 * 0.3 )

tan θ = 1 / 0.6

tan θ = 1.67

θ = 59.1°

Static friction is the frictional force of an object at rest. Once the object exceeds this force the object starts to move. The object will then have kinetic friction which resists its motion.

Therefore, the maximum angle between the ladder and the wall is 59.1°

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Answer:

the speed that the car is going at an instant of time is called the instantaneous speed.

Answer:

Yes,in fact visible 'light' is a form of radiation, which can be defined as an energy that travels in the form of electromagnetic waves. It can also be described as a flow of particle-like 'wave-packets', called photons, that travel constantly at the speed of light (about 300 000 kilometres per second).

Explanation:

The bundle contains all the required resources related to a component like a javascript controller, javascript helper, renderer, CSS styles, etc. A basic lightning component contains the design of a page in Html with some lightning tags. The component uses JavaScript on the client side on the server side.

Natural resources supply us with water, wood, food, and electricity. It is not feasible to live with out natural resources. natural resources consist of oil, coal, herbal gas, metals, stone, and sand. Air, sunlight, soil, and water are different herbal resources.

All useful resources have software, and because of this, they have got the want pleasant power. The price or usefulness of any given detail is recognized in relation to a selected intention. For example, cash can be maximum valuable asset at the same time as shopping for a commodity. it could be a vain useful resource to bypass an examination.

Useful resource wants manner any modern or projected deficit to reliably meet electricity needs created by using modifications in call for, modifications to machine sources, or their operation to conform with country or federal requirements.

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During the Scientific Revolution, astronomer and mathematician Nicolaus Copernicus' book "On the Revolutions of the Heavenly Spheres" directly challenged the ideas in the book  "Almagest" by Claudius Ptolemy.

In the scientific revolution, Nicolaus Copernicus' book on the revolutions of the heavenly spheres would have directly challenged the ideas in the previous book which was Ptolemy's Almagest.

Copernicus challenged the geocentric model of the universe, which was the dominant view at the time, and replaced it with the heliocentric model, which stated that the sun, rather than the earth, was the center of the universe.

This directly challenged the ideas put forth in Ptolemy's Almagest, which had been the standard text on astronomy for over a thousand years.

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The work done on a body when it is lifted through a height h appears in the form of its potential energy. Therefore, option (b) is the correct answer.

What is Geothermal Energy?

Geothermal energy is a type of renewable energy that is derived from the heat generated deep beneath the Earth's surface. It is produced by harnessing the naturally occurring heat from the Earth's core, which can be used to generate electricity or heat buildings directly. This energy can be accessed by drilling deep wells into the Earth's crust and tapping into the hot water and steam that is naturally present in underground reservoirs.

When a body is lifted through a height h, the work done on it appears in the form of potential energy. This is because the energy is stored in the body due to its position or configuration, rather than its motion.

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Answer:

True every culture is diffrent and culture is the way to grow up, the people or things you live around, or the ways of life you follow or dress.

Explanation: The definition of culture is:  means a particular set of customs, morals, codes and traditions from a specific time and place. All of that develops how a person may behave in society.

Answer:

true

Explanation:

just took the quiz

Answer:

1. The period is 1.74 s.

2. The frequency is 0.57 Hz

Explanation:

1. Determination of the the period.

Spring constant (K) = 30 N/m

Mass (m) = 2.3 Kg

Pi (π) = 3.14

Period (T) =?

The period of the vibration can be obtained as follow:

T = 2π√(m/K)

T = 2 × 3.14 × √(2.3 / 30)

T = 6.28 × √(2.3 / 30)

T = 1.74 s

Thus, the period of the vibration is 1.74 s.

2. Determination of the frequency.

Period (T) = 1.74 s

Frequency (f) =?

The frequency of the vibration can be obtained as follow:

f = 1/T

f = 1/1.74

f = 0.57 Hz

Thus, the frequency of the vibration is 0.57 Hz

The period of the vibration is  1.76 s and the frequency of the vibration is  0.57 s-1.

Using the formula;

T = 2π√(m/K)

Where;

T = period

m = mass

K = spring constant

Substituting values;

T = 2(3.142)√2.3/30

T = 6.284 × 0.28

T = 1.76 s

Recall that the period is the inverse of frequency;

f = 1/T

f = 1/1.76 s

f = 0.57 s-1

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Ohm's law states that:

where V is the voltage, R is the resistance and I is the current; in this case the current is 0.51 A and the resistance is 29 Ohms. Plugging these and solving for the voltage we have:

Therefore, the voltage is 14.79 V

B. False. The statement "Any object free to rotate about a pivot will come to rest with its center of gravity at the pivot" is incorrect. In fact, an object free to rotate about a pivot will come to rest with its center of mass directly below the pivot, not necessarily at the pivot itself.

This is because when the object rotates, its weight creates a torque that causes it to rotate until its center of mass is directly below the pivot. To understand this concept, consider a simple pendulum consisting of a mass suspended from a pivot point by a string. When the pendulum is released, it swings back and forth, eventually coming to rest with the mass hanging directly below the pivot point. This occurs because the force of gravity acting on the mass creates a torque that causes the pendulum to swing until its center of mass is directly below the pivot point. In summary, an object free to rotate about a pivot will come to rest with its center of mass directly below the pivot, not necessarily at the pivot itself. option B

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At the top of its path, the ball has zero velocity, which means it has zero kinetic energy. The potential energy of the ball has increased due to its height above the ground.

When an object is thrown into the air, it gains potential energy as it moves upward due to its increased distance from the ground. At the same time, its kinetic energy decreases as it slows down due to the opposing force of gravity. At the top of its path, the ball reaches its maximum height and has zero velocity. At this point, all of the initial kinetic energy has been converted to potential energy, and the ball has no kinetic energy. However, as the ball begins to fall back down to the ground, its potential energy is converted back into kinetic energy, and the ball's speed and kinetic energy increase as it falls. So, at the top of its path, the ball has zero kinetic energy and all of its energy is in the form of potential energy.

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Answer:

the earth

Explanation:

The largest input of solar energy strikes the Earth at the equator.

Answer:

B) they have been proven to cause drowsiness

Explanation:

B is the only answer that makes sense, as the other answers do not make sense.  All medications are scientifically tested before they can be used by someone.  Covering their bases would show negligence and is bad.

Hope this helps!

PS, this is biology or medical, not physics.

Answer: atmosphesracicallycongenial      thats the answer write that to your paper

Explanation:output is an intelligent honor to know the science subjecsts and many more than the circuit

A monatomic gas and a diatomic gas have equal numbers of moles and equal temperatures. Ratio Q diatomic/Q monatomic is 7/5.

The heat (Q) required to increase the temperature of a gas at constant pressure (i.e., heating it) can be calculated using the formula:

\(Q = nCp $\Delta$ T\)

here n is the number of moles of the gas, Cp is the molar specific heat capacity at constant pressure, and ΔT is the change in temperature. Since the two gases have equal numbers of moles and equal temperatures, ΔT is the same for both gases.

For a monatomic gas, Cp = (5/2)R, where R is the gas constant. For a diatomic gas, Cp = (7/2)R. Therefore, the ratio of the specific heats is:

Cp,diatomic/Cp,monatomic = (7/2)R / (5/2)R = 7/5

During the heating process, the gases are both heated at constant pressure until their volume doubles. Since the pressure is constant, we can use the formula for the work done on a gas at constant pressure:

W = -PΔV

where P is the pressure and ΔV is the change in volume. The negative sign indicates that work is done on the gas (i.e., the gas absorbs energy) when its volume increases.

Since the volume doubles, ΔV = V - V0 = V, where V0 is the initial volume and V is the final volume. Therefore, the work done on the gas is:

W = -PΔV = -P(V - V0) = -P(V/2) = -(1/2)PV

The change in internal energy of the gas is equal to the heat added to the gas minus the work done by the gas, according to the first law of thermodynamics:

ΔU = Q - W

Since the pressure is constant, the change in internal energy is equal to the heat added to the gas:

ΔU = Q

Therefore, the heat added to the gas is:

Q = ΔU = (3/2)nRΔT

where we have used the fact that the change in internal energy of an ideal gas is proportional to the number of moles and the temperature change, with a proportionality constant of (3/2)R for both monatomic and diatomic gases.

Substituting the values and simplifying, we get:

Qdiatomic/Qmonatomic = (ΔU)diatomic / (ΔU)monatomic

= [(3/2)nRΔT]diatomic / [(3/2)nRΔT]monatomic

= (Cp,diatomic/Cp,monatomic)ΔT

= (7/5)ΔT

Since ΔT is the same for both gases, the ratio of the heat added to the diatomic gas to the heat added to the monatomic gas is simply 7/5.

Therefore, the ratio Qdiatomic/Qmonatomic is 7/5. This means that the diatomic gas requires more heat to be added to it than the monatomic gas in order to achieve the same temperature increase, when heated at constant pressure and with the same number of moles and temperature. This is because the diatomic gas has more degrees of freedom (i.e., more ways to store energy) than the monatomic gas, due to its additional internal vibrations.

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Yes, the ray is bent when it passes out of the lens perpendicular to the curved surface of the lens. This is because the curvature of the lens causes the light rays to refract or bend as they pass through the lens.

When the ray of light passes out of the lens perpendicular to the curved surface, it still encounters a change in refractive index, which causes it to bend. The amount of bending depends on the shape of the lens and the refractive index of the medium on either side of the lens. A concave lens creates a virtual image, which means that it will appear to be farther away and hence smaller than the actual thing. Often, curved mirrors provide this result.

When parallel rays pass through the lens they emerges out and spread. When perpendicular rays are passing the concave lens they are refracted inward.

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Answer:

Velocity (v) can be calculated via v = gt, where g represents the acceleration due to gravity and t represents time in free fall. Furthermore, the distance traveled by a falling object (d) is calculated via d = 0.5gt^2.

The effort required to lift the 20 kg mass in this wheel and axle system is 6.25 kg.

To determine the effort required to lift a mass of 20 kg in a wheel and axle system, we can use the concept of mechanical advantage and the given information.

The mechanical advantage (MA) of a wheel and axle system is the ratio of the radius of the wheel (Rw) to the radius of the axle (Ra). In this case, the ratio is given as 4:1, which means Rw/Ra = 4/1.

The efficiency (η) of the system is given as 80%, which can be expressed as a decimal value of 0.8.

Efficiency = (MA actual / MA ideal) * 100%

Since efficiency is the ratio of the actual mechanical advantage (MA actual) to the ideal mechanical advantage (MA ideal), we can rearrange the formula to find the MA actual:

MA actual = Efficiency * MA ideal

MA actual = 0.8 * (Rw/Ra)

Now, we can calculate the MA actual:

MA actual = 0.8 * (4/1)

MA actual = 3.2

The mechanical advantage is the ratio of the load (L) to the effort (E):

MA actual = L / E

Given that the load is 20 kg, we can rearrange the formula to solve for the effort:

E = L / MA actual

E = 20 kg / 3.2

E = 6.25 kg

Therefore, the effort required to lift the 20 kg mass in this wheel and axle system is 6.25 kg.

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To determine the planet's radius, we can use the relationship between centripetal acceleration, gravitational acceleration, and radius.

Satellite velocity (v) = 5400 m/s

Gravitational acceleration (g) = 16.4 m/s^2

The centripetal acceleration (ac) of the satellite is given by: ac = v^2 / r

The gravitational acceleration is provided by: g = G * M / r^2

Where G is the gravitational constant and M is the mass of the planet.

Since the satellite is just above the surface of the planet, we can assume that the radius (r) is the sum of the planet's radius (R) and the height of the satellite (h), which we'll assume to be negligible.

Using these equations, we can set the centripetal acceleration equal to the gravitational acceleration: v^2 / r = G * M / r^2

Simplifying the equation: v^2 = G * M / r

Solving for r:r = G * M / v^2

Now we can substitute the known values:

r = (6.67430 × 10^-11 m^3 kg^-1 s^-2 * M) / (5400 m/s)^2

Since the mass of the planet (M) is not given, we cannot determine the planet's radius without this information.

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The correct answer is parallax

A parallax error is the apparent shift in the position of an object when viewed from different angles. For example, the error is most easily detected by closing one eye and looking at a nearby object through the other. The apparent motion of the object is known as parallax shift, and it is responsible for a minor but noticeable error in optical equipment.

The primary cause of parallax error is viewing the object at an oblique angle with respect to the scale, which causes the object to appear to be at a different position on the scale. Place the measuring device on its edge, level with the object to be measured.

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There is no force acting on the large box.

Thus, we can conclude that the force on the large box is zero.

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