which of the following describes the light that can be detected from a person? group of answer choices the person emits a few narrow wavelengths of visible light based on the elements that make up the human body. the person reflects a few narrow wavelengths of visible light based on the elements that make up the human body. the person emits many wavelengths of visible light and reflects infrared light. the person reflects many wavelengths of visible light and emits infrared light.

Global warming refers to the warming of the earth due to holes in the ozone layer. The ozone layer protects the earth from harmful ultraviolet rays emitted by the sun. This phenomenon causes our planet to warm and this concept is called global warming leading to climate change.

Global warming refers to an increase in the temperature of the earth, mainly due to an increase in the concentration of greenhouse gases in the atmosphere. “Climate change” refers to gradual changes in climate policy over time, including precipitation, temperature, and wind patterns. The burning of fossil fuels, deforestation, and livestock farming are increasingly impacting the planet's climate and temperatures. This adds enormous amounts of greenhouse gases to those naturally present in the atmosphere, increasing the greenhouse effect and global warming.

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The value of the inductance (L) for this oscillating circuit = 1.09*10^(-3) Henry.

Solution:

Given the following data:

Oscillator frequency = 18 kHz

Peak current = 70 mA

Rms Voltage = 6.2V

To determine the value of the inductance (L):

we need to find rms current

\(I_{rms}\) = \(I_{0}/\sqrt{2}\)

\(I_{rms} = 70*10^{-3}/1.414\)

\(I_{rms} = 0.05 A\)

calculate the inductive reactance of the oscillator by using the formula:

\(X_{L} = V_{rms}/I_{rms}\)

\(X_{L}\) = 6.2/0.05

\(X_{L}\) = 124 ohm

Now, the value of the inductance (L):

\(L = X_{L}/2\pi f\)

Where:

L is the inductance.

f is the frequency.

\(X_{L}\) is the inductive reactance.

L = 1.09*10^-3 henry

Inductance is the tendency of an electrical conductor to resist a change in the flow of current through it. An electric current running through a conductor creates a magnetic field around it. Following any variations in current, the field strength is determined by the current magnitude.

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Answer:

Electron Orbital

Explanation:

Answer:

The car must move at 2 m/s to have a Ke of 2,000 Joules.

Explanation:

Mark me pls

The electron configuration of an atom refers to the arrangement of electrons in the energy levels or orbitals around the nucleus. It provides information about the distribution of electrons in an atom and is based on the Aufbau principle. The electron configuration is written using a notation that includes the energy level, sublevel, and the number of electrons in that sublevel.

The electron configuration of an atom refers to the arrangement of electrons in the energy levels or orbitals around the nucleus. Electrons occupy specific energy levels or shells, and each energy level can hold a certain number of electrons. The electron configuration provides information about the distribution of electrons in an atom, including the number of electrons in each energy level and the arrangement of electrons within each level.

The electron configuration is based on the Aufbau principle, which states that electrons fill the lowest energy levels first before moving to higher energy levels. The energy levels are labeled as 1, 2, 3, and so on, with the first energy level closest to the nucleus. Each energy level can hold a specific number of electrons: the first level can hold a maximum of 2 electrons, the second level can hold a maximum of 8 electrons, the third level can hold a maximum of 18 electrons, and so on.

Within each energy level, there are sublevels or orbitals. The sublevels are labeled as s, p, d, and f. The s sublevel can hold a maximum of 2 electrons, the p sublevel can hold a maximum of 6 electrons, the d sublevel can hold a maximum of 10 electrons, and the f sublevel can hold a maximum of 14 electrons.

The electron configuration is written using a notation that includes the energy level, sublevel, and the number of electrons in that sublevel. For example, the electron configuration of carbon (atomic number 6) is 1s2 2s2 2p2. This means that carbon has 2 electrons in the 1s sublevel, 2 electrons in the 2s sublevel, and 2 electrons in the 2p sublevel.

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The electron configuration provides a systematic way to understand and predict the chemical properties and behavior of atoms, as it determines the atom's reactivity, bonding capabilities, and overall electronic structure.

The electron configuration of an atom refers to the arrangement of electrons within its atomic orbitals. Electrons occupy specific energy levels and sublevels around the nucleus of an atom, and the electron configuration describes the distribution of electrons among these orbitals. It provides information about the organization of electrons, their energy states, and their overall stability within an atom.

The electron configuration follows a set of principles and rules, including the Aufbau principle, Pauli exclusion principle, and Hund's rule. The Aufbau principle states that electrons fill the lowest energy levels first before moving to higher energy levels. The Pauli exclusion principle states that each orbital can accommodate a maximum of two electrons with opposite spins. Hund's rule states that when multiple orbitals of the same energy level are available, electrons prefer to occupy separate orbitals with parallel spins.

The electron configuration is represented using a notation that includes the principal quantum number (n), which represents the energy level, along with the letter(s) representing the sublevel (s, p, d, f) and the superscript indicating the number of electrons in that sublevel. For example, the electron configuration of carbon is 1s² 2s² 2p², indicating that carbon has two electrons in the 1s orbital, two electrons in the 2s orbital, and two electrons in the 2p orbital.

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Answer:

C

Explanation:

The statement that best summarizes the law of conservation of energy before and after a change in a system is C. PE (initial) = PE (final) and KE (initial) = KE (final).

The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another. This means that the total amount of energy in a closed system remains constant over time.

In statement C, the potential energy (PE) and kinetic energy (KE) of the system are conserved separately. This means that the initial potential energy is equal to the final potential energy, and the initial kinetic energy is equal to the final kinetic energy.

Statement A is incorrect because it implies that the total energy of the system changes, which violates the law of conservation of energy. Statement B is also incorrect because it implies that the potential energy and kinetic energy are equal at both the initial and final states, which may not be true in all cases. Statement D is incorrect because it combines the initial and final energies in a way that does not conserve the total energy of the system.

Answer:

400 meters

Explanation:

using the equation:

Hopefully this helps.

Answer:

P = V^2 R

P = (1.5)^2 ( 0.0252 x length of wire )

Ans x 2(60)

The required order of circular velocities, from smallest to largest is calculated to be d < a < c < b, where, a, b, c, d are the given options.

The velocity equation for the objects moving in circular motion is given by the equation,

v = √(G m/r)

where,

v is the velocity

G is the Gravitational constant

m is the mass of the object

r is the radius of the orbit

a. A 5 kg object halfway to the Moon circling the Earth

In this case, the radius of the orbit is the half of the distance between the Earth and the moon.

r = distance between earth and moon/2 = 384400000 m/2 = 192200000 m

So, v₁ = √(G m/r) = √(6.67408× 10⁻¹¹ × 5/192200000) = 1.317 × 10⁻⁹ m/s

b. A 10-kilogram object is circling the planet just above its surface

The orbit's radius is similar to the size of the planet Earth.

r = r earth = 6371000 m

So, v₂ = √(G m/r) = √(6.67408× 10⁻¹¹ × 10/6371000) = 1.02 × 10⁻⁸ m/s

c. A 15 kg object circling the Earth at a distance equal to that of the Moon

r = distance between the earth and the moon = 384400000 m

So, v₃ = √(G m/r) = √(6.67408× 10⁻¹¹ × 15/384400000) = 1.61 × 10⁻⁹ m/s

d. A 20 kg object that is circling the Earth and is one-quarter to the Moon

r = 1/4(distance between the earth and the moon) = 384400000 m/4 = 96100000 m

So, v₄ = √(G m/r) = √(6.67408× 10⁻¹¹ × 20/96100000) = 1.17 × 10⁻⁹ m/s

Thus, v₄ < v₁ < v₃ < v₂. And the order of options are d < a < c < b.

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A lunar eclipse occurs when the Moon moves into the Earth's shadow. This can occur only when the Sun, Earth, and Moon are exactly or very closely aligned (in syzygy) with Earth between the other two, and only on the night of a full moon.

When a parallel beam of light passes through a convex lens, the rays become farther from one another when the come out. This process of rays is called ''to diverge''. The concave lens makes rays of light diverge, so it is called diverging lens.

The magnitude of the force on the charge by the influence of the magnetic field will be 6.6*10^-3 N

Magnetic force, attraction or repulsion that arises between electrically charged particles because of their motion.The magnitude of the magnetic force acting on the charge is given by:

\(\rm F=qvBsin\theta\)

where

The magnitude of the charge   \(q=5.7\ \mu C =5.7\times 10^{-6} \ C\)

The velocity of the charge        \(v=4.5\times 10^5\ \frac{m}{s}\)

The magnitude of the magnetic field   \(3.2\ mT=0.0032\ T\)

The angle between the directions of v and B  \(\theta =90^o-37^o=53^o\)

By substituting the values we will get:

\(F=(5.7\times 10^}-6})(4.5\times 10^5)(0.0032)(Sin53^o)\)

\(F=6.6\times 10^{-3}\ N\)

Hence the magnitude of the force on the charge by the influence of the magnetic field will be 6.6*10^-3 N

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Answer:

a - on edge

Explanation:

yes

Question :-

Answer :-

Explanation :-

As per the provided information in the given question, we have been given that the Mass of the body is 2 kg . Speed of the body is given \( \bf{10 \: {ms}^{ - 1} } \) . And, we have been asked to calculate the Kinetic Energy .

For calculating the Kinetic Energy , we will use the Formula :-

\( \bigstar \: \: \boxed{ \sf{ \: Kinetic \: Energy \: = \: \dfrac{1}{2} \: \times \: {mv}^{2} \: }} \\ \)

Where ,

Therefore , by Substituting the given values in the above Formula :-

\( \longmapsto \: \: \sf{ Kinetic \: Energy \: = \: \dfrac{1}{2} \: \times \: {m \: \times \: v}^{2} } \\ \)

\( \longmapsto \: \: \sf{Kinetic \: Energy \: = \: \dfrac{1}{2} \: \times \: 2 \: \times \: {10}^{2} } \\ \)

\( \longmapsto \: \: \sf{Kinetic \: Energy \: = \: \dfrac{1}{2} \: \times \: 2 \: \times \: 100 } \\ \)

\( \longmapsto \: \: \sf{Kinetic \: Energy \: = \: \dfrac{1 \: \times \: 2 \: \times \: 100}{2}} \\ \)

\( \longmapsto \: \: {\textbf {\textsf {Kinetic \: Energy \: = \: 100 \: Joule }}} \)

\( \underline {\rule {180pt} {4pt}} \)

The kinetic energy of the body with the given value of mass travelling at the given speed is 100 Joules.

Kinetic energy is simply a form of energy a particle or object possesses due to its motion.

It is expressed as;

K = (1/2)mv²

Where m is mass of the object and v is its velocity.

Given the data in the question;

We substitute our given values into the above expression to determine the kinetic energy of the body.

K = (1/2)mv²

K = (1/2) × 2kg × (10ms⁻¹)²

K = 0.5 × 2kg × 100m²s⁻¹
K = 100kgm²s⁻¹

K = 100J

Therefore, the kinetic energy of the body with the given value of mass travelling at the given speed is 100 Joules.

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Answer:

126 KJ

Explanation:

Starting from rest on a circular track with a radius of 300 m and a constant tangential acceleration of 0.75 m/s², the car will travel a distance of approximately 0.2119 meters or 21.19 centimeters in 0.75 seconds.

To determine the distance traveled and the time elapsed by the car starting from rest on a circular track with a radius of 300 m and a constant tangential acceleration of 0.75 m/s², we can use the equations of circular motion.

The tangential acceleration is the rate of change of tangential velocity. Since the car starts from rest, its initial tangential velocity is zero (v₀ = 0).

Using the equation:

v = v₀ + at

where v is the final tangential velocity, v₀ is the initial tangential velocity, a is the tangential acceleration, and t is the time, we can solve for v:

v = 0 + (0.75 m/s²) * t

v = 0.75t m/s

The tangential velocity is related to the angular velocity (ω) and the radius (r) of the circular track:

v = ωr

Substituting the values:

0.75t = ω * 300

Since the car starts from rest, the initial angular velocity (ω₀) is zero. So, we have:

ω = ω₀ + αt

ω = 0 + (0.75 m/s²) * t

ω = 0.75t rad/s

We can now substitute the value of ω into the equation:

0.75t = (0.75t) * 300

Simplifying the equation gives:

0.75t = 225t

t = 0.75 seconds

The time elapsed is 0.75 seconds.

To calculate the distance traveled (s), we can use the equation:

s = v₀t + (1/2)at²

Since the initial velocity (v₀) is zero, the equation becomes:

s = (1/2)at²

s = (1/2)(0.75 m/s²)(0.75 s)²

s = (1/2)(0.75 m/s²)(0.5625 s²)

s = 0.2119 meters or approximately 21.19 centimeters

Therefore, the car travels a distance of approximately 0.2119 meters or 21.19 centimeters.

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Based on the provided information, Magnitude and direction of the position. Magnitude: 40.392 m; Direction: West.

Magnitude and direction of the velocity. Magnitude: 11.672 m/s; Direction: West.

It is given that:

Initial velocity of the particle = 20.4 m/s

Acceleration of the particle = 4.40 m/s²

Time at which the position and velocity of the particle is to be found = t = 1.98 s

We can find the position of the particle by using the formula:

position = initial_position + initial_velocity × time + (1/2) × acceleration × time² = 0 + (20.4 m/s) × (1.98 s) + (1/2) × (−4.40 m/s²) × (1.98 s)² = 40.392m west of the starting position.

Therefore, the magnitude of the position is 40.392 m. The direction of the position is west. Since the particle is moving in the opposite direction to the east.

Magnitude and direction of the velocity can be found by using the formula:

velocity = initial_velocity + acceleration × time= 20.4 m/s + (−4.40 m/s²) × (1.98 s) = 11.672 m/s directed west

Therefore, the magnitude of the velocity is 11.672 m/s. The direction of the velocity is west.

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The effective access time for the system is 5.95 units of time.

Calculate the effective access time for the system with a given cache hit ratio, we can use the concept of the "average memory access time" (AMAT).

The AMAT takes into account the time required for both cache access and RAM access, weighted by their respective hit and miss probabilities.

Cache access time: 1 unit of time (since cache access is 100 times faster than RAM access)

RAM access time: 100 units of time

Cache hit ratio: 95% (or 0.95)

Calculate the effective access time (EAT), we can use the following formula:

EAT = (cache hit time) + (cache miss time * miss ratio)

Cache hit time = cache access time = 1 unit of time

Cache miss time = RAM access time = 100 units of time

Miss ratio = 1 - cache hit ratio = 1 - 0.95 = 0.05

Plugging in the values, we get:

EAT = (1 * 0.95) + (100 * 0.05) = 0.95 + 5 = 5.95 units of time

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Proportional scale or Proportion wheel are terms used to describe the process of preparing illustrations for expansion or reduction.

What is the proportional principle?

The relationship between two or more elements in a design and how they stack up against one another is known as proportion. When there is a proper size or quantity relationship between the elements, proportion is said to be harmonic.

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Creep becomes a significant factor in the failure of metals at high temperatures, generally occurring above approximately 40% to 50% of the metal's melting temperature in Kelvin. The specific temperature range varies depending on the composition and type of metal.

Creep refers to the gradual deformation and elongation of a material over time when it is subjected to a constant load or stress at elevated temperatures. This deformation arises from the increased mobility of atoms within the metal at higher temperatures. As the temperature approaches the metal's melting point, the effect of creep becomes more pronounced due to the significantly enhanced atomic mobility.

It is important to acknowledge that the precise temperature at which creep becomes a crucial failure mechanism can differ for various metals and alloys. Furthermore, factors like applied stress, duration of time, and environmental conditions also impact the significance of creep as a failure mechanism.

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When using presentation aids, you should always remember Murphy's Law what: if something ca go wrong with it, option B.

You are now in the realm of Murphy's Law. The law is extremely optimistic, stating that anything that can go wrong will. In any case, on the off chance that it can't turn out badly, it will turn out badly. Murphy's Law is based on this fundamental idea. "Anything that can go wrong will go wrong," says Murphy's Law.

Another supposedly original and accurate interpretation of Murphy's Law holds that if there are two or more ways to do something and one of them could lead to disaster, someone will do it. Yet, the explanation that best communicates the touchy idea of Murphy's Regulation is without a doubt the possibility that you will definitely pursue some unacceptable decision anything you choose, and it might simply be correct. This is not due to some enigmatic power that the law possesses.

As a general rule, we can give significance to Murphy's Regulation in our everyday life. The good times are rarely talked about. After all, we hope that everything will go our way. However, when things go wrong, we look for reasons. Thoughtful though it may be, Murphy's Law as a whole is based solely on perception, and there is no evidence to support it. We are captivated by the law.

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Complete question:

when using presentation aids, you should always remember ______ what: if something ca go wrong with it.

Logos

Murphy's Law

physiological

dynamism

According to the Law of Reflection, the Angle of Incidence is equal to the angle of reflection

Answer:

2.A flowerpot falling from a balcony

Explanation:

Potential energy is the internal energy within a body at rest or at a height above the ground. In this case of the falling flowerpot, the flowerpot initially has a potential energy due to its position on the balcony above the surface of the earth. As the flowerpot falls, the work done against gravity in taking the flowerpot to this height on the balcony (equivalent to the potential energy) is transformed into the kinetic energy of motion as the flowerpot falls down through the height.

The block of wood is 65.84g so, the volume of the wood is 97.83 cm3.

Given:

Weighs =65.84 g

Density= 0.673 g/cm3

=65.84/0.673

=97.83 cm3

The amount of space or volume that a three-dimensional object occupies. Volumes are measured in cubic units. an evaluation of how loud or powerful a sound is.

It is more common to think of a container's volume as its capacity rather than as the quantity of room it occupies. In other words, a container's volume is determined by how much liquid or gas it can hold.

To measure volume, first standardized containers are employed, and subsequently naturally occurring containers with a similar shape. A number of simple three-dimensional shapes can have their volume easily calculated using arithmetic methods.

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Answer:

Explanation:

The big bang theory explained that the universe started as a single entity which was created by massive explosion and it create most of the matter i.e galaxies were moving away from the universe in all directions with great speed which then cause massive explosion and bring about cosmos creation.

A voltage of 0.5 v is induced across a coil when the current through it changes uniformly from 0.1 to 0.6 a in 0.5 s. The self-inductance of the coil is 0.5 henry.

The inductance of an inductor depends on several factors, including the number of turns in the coil, the geometry of the coil, and the material surrounding the coil. A coil with a larger number of turns, a larger area, or a higher permeability material will generally have higher inductance.

To find the self-inductance of the coil, we can use the formula:
V = L(dI/dt)
where V is the induced voltage, L is the self-inductance, and (dI/dt) is the rate of change of current.
We are given that the induced voltage is 0.5 V and the current changes uniformly from 0.1 A to 0.6 A in 0.5 seconds. So we can calculate the rate of change of current as:
(dI/dt) = (0.6 A - 0.1 A) / 0.5 s
(dI/dt) = 1 A/s
Substituting these values into the formula, we get:
0.5 V = L (1 A/s)
Solving for L, we get:
L = 0.5 V / 1 A/s
L = 0.5 henry
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Answer:

\(\Large \boxed{\mathrm{5.67 \ seconds }}\)

Explanation:

\(\displaystyle \mathrm{acceleration \ = \ \frac{final \ velocity - initial \ velocity }{elapsed \ time}}\)

\(\displaystyle A \ = \ \frac{V_f - V_i }{t}\)

\(\displaystyle 3 \ = \ \frac{25 - 8 }{t}\)

\(\displaystyle 3 \ = \ \frac{17 }{t}\)

\(\displaystyle t \ = \ \frac{17 }{3} \approx 5.67\)

To determine the x-component of the net force on an airplane, we need to consider the forces acting on it in the horizontal direction (along the x-axis). The net force is the vector sum of all these forces.

The forces that typically act on an airplane in the x-direction include:

Assuming there are no other horizontal forces acting on the airplane (such as sidewinds), the x-component of the net force can be calculated as:

Net Force (x-component) = Thrust - Drag - Friction

The specific values for thrust, drag, and friction would depend on the airplane's characteristics, flight conditions, and other factors.

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the first option, getting enough sleep