When electromagnetic radiation of various frequencies is incident on a collection of the atoms, only photons of frequency

Answer:

Nitrous oxide

Nitrous oxide, often called laughing gas, makes a serious impact on the Earth.

Answer:

gravitational force still acts on it

Explanation:

Near the Earth's surface

A gravity force acts on an object regardless of whether it is moving or not moving

The length of the third side of the triangular piece of land is approximately 125.7 m, and the angle between the first and third side is approximately 79.4° .

To find the length and orientation of the third side c, we can use the law of cosines, which states:

c² = a² + b² - 2ab cos(C)

where c is the length of the third side, a and b are the lengths of the first two sides, and C is the angle between sides a and b.

To find the angle C, we can use the law of sines, which states:

sin(C) / c = sin(A) / a = sin(B) / b

where A and B are the angles opposite sides a and b, respectively.

We can use the given measurements to calculate the values of a, b, and A:

a = 80.0 m

b = 105 m

To find angle A, we can use the law of cosines:

A = cos^-1[(b² + c² - a²) / (2bc)]

Since the angle between sides a and b is the same as the angle between sides b and c, we can use the same value for angle A and angle C. Therefore:

C = cos^-1[(a² + b² - c²) / (2ab)]

We can rearrange the law of sines to solve for c:

c = (a sin(C)) / sin(A)

Substituting the values we have calculated:

A = cos^-1[(105² + c² - 80²) / (2 x 105 x c)]

C = cos^-1[(80² + 105² - c²) / (2 x 80 x 105)]

c = (80 sin(C)) / sin(A)

Using a calculator, we get:

A ≈ 38.4°

C ≈ 79.4°

c ≈ 125.7 m

Therefore, the length of the third side and the angle between the first and third side is calulated to be 79.4° and  125.7 m (approx.)

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Developing a criterion for judging the effectiveness of a solution occurs during the step of evaluating solutions in the problem-solving process.

Problem-solving is the method of determining a problem's root cause and developing and executing an effective solution. Problem-solving is a critical skill for anyone to have in both their personal and professional lives. The problem-solving process entails the following steps:

1. Identifying and defining the problem

2. Gathering information

3. Developing potential solutions

4. Evaluating alternatives

5. Selecting the best solution

6. Planning and executing the solution

7. Monitoring the solution

You can follow these steps in any order. However, most successful problem-solving approaches are iterative, which means they go back and forth between steps until the best solution is found.

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Answer:

jhon Dalton described it

Explanation:

hope it works out for you

if please mark brainiest

John Dalton described atoms as small spheres that could not be divided into anything smaller.

John Dalton is the scientist who described atoms as small spheres that could not be divided into anything smaller. He proposed his atomic theory in 1803, which included the postulate that all matter is composed of tiny, indivisible particles called atoms. D

Dalton's theory also stated that atoms of different elements are unique in their mass and chemical properties and combine in simple whole-number ratios to form compounds. Dalton's model of the atom was a solid, indivisible sphere that was the smallest possible unit of an element.

While this model has been refined and updated with new discoveries, Dalton's contributions laid the foundation for the modern understanding of atomic structure and chemical reactions.

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Answer:75 percent

Explanation:so in order tro fin d thge efficiency i used the forumla ,efficency=useful output energy/input energyx100%,in order to use this formula i needed the output,which i found by subtracting the input energy with wasted energy,that gave me the output,and after founding the output,i put that into the formula,

output energy=input energy - wasted energy

output energy=6000j-1500j

output energy=4500

put that into the formula

efficiency =output energy/input enrgy x100%

efficiency=4500/6000 multiplied by 100%

efficiency=0.75x100%

efficiency=75%

When a generator is turned, it produces a voltage that creates a current flow. However, as the current flows through the coils of the generator, it creates a magnetic field that opposes the original magnetic field.

According to Lenz's law. This opposition to the magnetic field is known as back-EMF, which can reduce the overall voltage produced by the generator.

To complete the concept map using the terms generator, back-EMF, and Lenz's law, you can follow these steps:
1. Place the term "generator" at the center of the concept map. Generators are devices that convert mechanical energy into electrical energy.
2. Draw an arrow from the generator to a box labeled "back-EMF." Back-EMF, or back electromotive force, is the voltage that opposes the change in current within a generator.
3. Next, draw another arrow from the back-EMF box to a box labeled "Lenz's law." Lenz's law is a fundamental principle that explains the origin of back-EMF. It states that the direction of the induced current will always be such that it opposes the change in magnetic field that created it.
4. Finally, draw an arrow from Lenz's law back to the generator. This connection illustrates the relationship between Lenz's law and the generator's functioning, as Lenz's law is essential in maintaining the balance between input mechanical energy and output electrical energy.
By connecting these terms, you have created a concept map that illustrates the relationship between a generator, back-EMF, and Lenz's law.

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Answer:

A

Explanation:

Answer:

x-rays

Explanation:

The final charge on each sphere is the same as follows:

Since the two spheres are in contact, they will share charges until they reach the same potential.

Let's assume that the initial charge on the left sphere is Q and the initial charge on the right sphere is q. After they are brought into contact, the total charge is conserved, so we have:

Q + q = (Q + q)/2 + (Q + q)/2

Simplifying this equation, we get:

Q + q = 2(Q + q)/2

Q + q = Q + q

This tells us that the final charge on each sphere is the same, which is half of the sum of their initial charges. Therefore:

Final charge on left sphere = Q/2

Final charge on right sphere = q/2

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Velocity of  first ball is -28m/s , and velocity of second ball is -4m/s.

Velocity is a vector quantity that describes the rate of change of an object's position. It is equal to the displacement of an object divided by the time interval over which the displacement occurred. Velocity has both magnitude and direction, and its units are typically meters per second (m/s). The velocity of an object can change over time due to acceleration, and if an object is moving in a circular path, it also has a component of velocity perpendicular to its direction of motion, known as centripetal velocity.

Given : Coefficient of restitution

\($e=\dfrac{2}{3}$Velocity of mass\)

\($$1 \mathrm{~kg}$ after the collision is given by \\\\$V_1=\dfrac{\left(m_1-e m_2\right) u_1+(1+e) m_2 u_2}{m_1+m_2}$\\Or $\quad V_1=\dfrac{\left(1-\frac{2}{3} \times 2\right) \times 12+\left(1+\frac{2}{3}\right) \times 2 \times(-24)}{1+2}=-28 \mathrm{~m} / \mathrm{s}$\\\)

\(Velocity of mass $2 \mathrm{~kg}$ after the collision is given by \\$V_2=\dfrac{\left(m-e m_1\right) u_2+(1+e) m_1 u_1}{m_1+m_2}$\\Or $\quad V_2=\dfrac{\left(2-\frac{2}{3} \times 1\right) \times(-24)+\left(1+\frac{2}{3}\right) \times 1 \times(12)}{1+2}=-4 \mathrm{~m} / \mathrm{s}$\)

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When two vectors are added together graphically, one can drag the vectors around (keeping the direction the same) so that the tail of one vector touches the tip of the other. show answer no attempt if the three vectors in the figure are added together (a b c), in approximately what direction will the resultant be.

The answer is no length and no direction.

A vector is a type of quantity that has a value and a direction. Quantities that include vector quantities include displacement, force, velocity, acceleration and others. A vector is described as a directed line segment that has a point of origin (point of origin) as the starting place for the vector to work.

The length of the line indicates the value of the vector and the direction of the arrow indicates the direction in which the vector acts. The line through the vector is called the working line.

Write a symbol for a vector quantity using upright letters in bold, for example the vector AB is written AB.

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Answer:

D. Wind and solar energy help save money and reduce air pollution.

Explanation:

Answer:

d

Explanation:

edge 2021

Hi! I believe your answer is 6.3 seconds because it takes 0.45 seconds for an object to fall 1 meter, so just multiply 0.45 by 14 and you'll get 6.3 seconds. I hope this helps you! Good luck and have a great day/night. ❤️✨

Assume for the moment that it shows a young child embracing her mother before he departs for a tour of service abroad. How would you employ science to analyse her effects.

What in physics is an energy?

The definition of energy is ability to do work," which is the capacity to apply a force that causes an item to move. organismal biology the study of sentient creatures Social science is the study of people and society.

photo of How might science be used for research,Students who study science get the chance to learn more about how and how things work. Children can learn about the environment they live in through science.

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Answer: The science I would use to study the impact of the father’s departure from her family would be interpretive sociology.

Explanation: The reason I chose this science is because it focuses on the cause of people’s actions.

Higher concentration of carbon dioxide (\(CO_2\)), methane (\(CH_4\)), and nitrous oxide (\(N_2O\)) causes the greenhouse effect.

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The final angular velocity ,  angular displacement,  initial rotational kinetic energy, final rotational kinetic energy and work done on the disk are respectively 25 rad/s, 150 rad, 0.25 Joule, 6.25 Joule, and 6.00 Joule.

Given parameters:

Mass of the disc; m = 0.5 kg.

Initial angular velocity: ω₀ = 5 rad/sec

Mass of inertia; I =  0.02kg.m².

Angular acceleration; α = 2 rad/sec².

1. The disc final angular velocity at 10 second =  ω₀ + α t

= 5 + 10×2 rad/s

= 25 rad/s.

2.  The disc angular displacement of the disc at the end of 10seconds;

d = ω₀t + 1/2 α t²

= 5×10 +1/2 × 2 × 10² rad

= 150 rad.

3.  The initial rotational kinetic energy of the disc = 1/2 I ω₀²

= 1/2 × 0.02× 5² Joule.

= 0.25 Joule.

4. The final rotational kinetic energy of the disc at the end of 10seconds

=  1/2 I ω²

= 1/2 × 0.02 × 25² Joule

= 6.25 Joule.

5. The work done on the disk during the given time = final rotational kinetic energy - initial rotational   kinetic energy

= 6.25 Joule - 0.25 Joule

= 6.00 Joule.

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Answer:

a) Time = 2.67 s

b) Height = 35.0 m

Explanation:

a) The time of flight can be found using the following equation:

\( x_{f} = x_{0} + v_{0_{x}}t + \frac{1}{2}at^{2} \)   (1)

Where:

\( x_{f}\): is the final position in the horizontal direction = 80 m

\( x_{0}\): is the initial position in the horizontal direction = 0

\(v_{0_{x}}\): is the initial velocity in the horizontal direction = 30 m/s

a: is the acceleration in the horizontal direction = 0 (the stone is only accelerated by gravity)

t: is the time =?  

By entering the above values into equation (1) and solving for "t", we can find the time of flight of the stone:  

\( t = \frac{x_{f}}{v_{0}} = \frac{80 m}{30 m/s} = 2.67 s \)

b) The height of the hill is given by:

\( y_{f} = y_{0} + v_{0_{y}}t - \frac{1}{2}gt^{2} \)

Where:

\( y_{f}\): is the final position in the vertical direction = 0

\( y_{0}\): is the initial position in the vertical direction =?

\(v_{0_{y}}\): is the initial velocity in the vertical direction =0 (the stone is thrown horizontally)            

g: is the acceleration due to gravity = 9.81 m/s²

Hence, the height of the hill is:

\( y_{0} = \frac{1}{2}gt^{2} = \frac{1}{2}9.81 m/s^{2}*(2.67 s)^{2} = 35.0 m \)  

I hope it helps you!

Answer:

Both the Big Bang and Steady State theories accepted that the universe is expanding because there was observational evidence supporting this idea. In the 1920s, the American astronomer Edwin Hubble observed that distant galaxies were moving away from us, and the farther away they were, the faster they appeared to be moving. This observation suggested that the universe was not static but was expanding.

Supporters of the Big Bang theory interpreted this expansion as evidence that the universe had a beginning and that it started as a small, hot, dense state that has been expanding and cooling ever since. Supporters of the Steady State theory, on the other hand, proposed that new matter was continuously being created in the expanding universe so that the overall density of the universe remained constant over time. However, they still accepted that the universe was expanding based on the observational evidence available at the time.

Therefore, despite their different interpretations of the implications of the expansion, both theories accepted the idea that the universe is indeed expanding based on the available observational evidence.

The mechanical advantage of using a ramp lies in the ability to spread the force needed to move the gurney over a longer distance. By gradually increasing the height through an inclined plane, the ramp allows for a reduced force requirement.

This advantage is particularly useful when dealing with heavy objects, as it minimizes the effort needed to achieve the desired displacement.

Mechanical advantage refers to the amplification of force achieved by using a tool or machine. It allows us to exert less force to accomplish a particular task. In the case of a ramp, the mechanical advantage arises from the inclined plane it provides.

To understand this better, let's compare the process of lifting a gurney straight up to using a ramp. When you lift the gurney straight up, you are working against the force of gravity acting on its weight. The force required to lift the gurney vertically is equal to its weight. This force can be calculated using the formula:

Force = Mass × Acceleration due to gravity

However, when you use a ramp, the situation changes. A ramp allows you to exert the force over a longer distance by gradually increasing the height. This extended distance compensates for the reduced force needed to move the gurney upward. As a result, you have to exert less force to achieve the same vertical displacement.

The mechanical advantage of using a ramp can be quantified by comparing the force required to lift the gurney straight up to the force required to push the gurney up the ramp. By using simple trigonometry, we can calculate the relationship between the applied force and the weight of the gurney.

The mechanical advantage (MA) of a ramp is given by the formula:

MA = Length of the ramp / Height of the ramp

The length of the ramp represents the horizontal distance covered, while the height of the ramp corresponds to the vertical displacement. As the length of the ramp increases or the height decreases, the mechanical advantage of the ramp increases.

For example, let's consider a ramp with a length of 4 meters and a height of 1 meter. The mechanical advantage would be:

MA = 4 meters / 1 meter = 4

This means that by using the ramp, you can exert only one-fourth (1/4) of the force required to lift the gurney straight up. In other words, you would need to apply four times less force when using the ramp compared to lifting the gurney vertically.

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The values of current, i, at t = 0, t = 4.5 s, and t = [infinity] depend on the specific circuit and the equations governing it. Without more information, it is not possible to accurately determine the values of current at these specific times.

However, it is important to note that the value of current in a circuit is determined by the voltage and resistance in the circuit, according to Ohm's Law: I = V/R, where I is the current, V is the voltage, and R is the resistance.

At t = 0, the current may be at its initial value, depending on the circuit. At t = 4.5 s, the current may have changed depending on the voltage and resistance in the circuit at that time. At t = [infinity], the current may have reached a steady state, depending on the circuit. Without more information about the specific circuit and its governing equations, it is not possible to accurately determine the values of current at these specific times.

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Answer:

B. Extrusive igneous

Explanation:

Its B

The translational speed of the cylinder when it leaves the incline is 3.28 m/s.

To solve this problem, we need to use the conservation of energy principle, which states that the initial potential energy of the cylinder is equal to its final kinetic energy plus any remaining potential energy.

The initial potential energy of the cylinder is given by:

U_i = mgh

where m is the mass of the cylinder, g is the acceleration due to gravity, and h is the height of the incline. Substituting the given values, we get:

U_i = (2.53 kg)(9.81 m/s^2)(2.70 m) = 68.9 J

The final kinetic energy of the cylinder is given by:

K_f = (1/2)mv^2

where v is the translational speed of the cylinder when it leaves the incline. We also know that the cylinder will have rotational kinetic energy due to its rolling motion, given by:

K_rot = (1/2)Iω^2

where I is the moment of inertia of the cylinder and ω is its angular velocity. For a solid cylinder rolling without slipping, the moment of inertia is given by:

I = (1/2)mr^2

and the angular velocity is related to the translational speed by:

ω = v/r

Substituting these equations and simplifying, we get:

K_f + K_rot = (1/2)mv^2 + (1/4)mv^2

K_f + K_rot = (3/4)mv^2

Now, let's calculate the final potential energy of the cylinder. At the bottom of the incline, the cylinder will have a height of zero, so its potential energy will be:

U_f = mgh_cos(θ)

where θ is the angle of the incline. Substituting the given values, we get:

U_f = (2.53 kg)(9.81 m/s^2)(2.70 m)cos(46.8°) = 29.3 J

Using the conservation of energy principle, we can equate the initial potential energy to the final kinetic energy plus the final potential energy:

U_i = K_f + K_rot + U_f

Substituting the equations we derived earlier and simplifying, we get:

68.9 J = (3/4)mv^2 + 29.3 J

Solving for v, we get:

v = sqrt[(4/3)(68.9 J - 29.3 J)/m] = 3.28 m/s

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The linear distance Δ between the ninth order maximum and the fourth order maximum on the screen is 729.6 mm.

Use formula Δ = L * (y9 - y4).

where L is the distance between the double gashes and the screen, and y9 and y4 are the distances between the centre  outside and the ninth and fourth order maxes.

 To get y9 and y4, we may use the maximum position formula in a double- slit  hindrance pattern

 y =  m * λ * L/ d  

where m is the loftiest order, is the light wavelength, L is the distance between the double gashes and the screen, and d is the slit distance.   With the  handed values, we get

d = 0.100 mm = 0.0001 m

λ = 552 nm = 0.000552 m

L = 49.0 cm = 0.49 m

m = 9

y9 = m * λ * L / d = 9 * 0.000552 * 0.49 / 0.0001 = 2.6876 m

Δ = L * (y9 - y4) = 0.49 * (2.6876 - 1.2056) = 0.7296 m

Δ = 729.6 mm

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Answer:

Uranus

Explanation:

it's uranus....

Work = 540 joules is the amount of work that was done on the item by this force.

The amount of work a force can produce relies on the force, the body's displacement, and the angle between the two. When displacement is in the force's direction, the most work is produced.

Newton's second law provides a precise explanation of the modifications that a force can make to a body's motion. According to this, a body's momentum changes at a rate that is equal to the force acting on it over time in both magnitude and direction.

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Physical health can have a critical effect on social media utilization and behaviour. Individuals with way better physical well-being may have more vitality and inspiration to lock in with social media.

Generally, physical well-being can impact the recurrence and nature of social media utilization, as well as the passionate and mental impacts it has on people. Here are few questions regarding how physical health affect social media-

GEN Z:

MILLENIALS:

GEN X:

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Work done by the given force as the object moves from x = -1 m to x = +2 m is 21 J.

Force acting on an object moving along the x-axis Fx = (14x - 3.0x²) N

where x is in m.

Work done by force = ∫F dx, limits = -1 to 2

The given force Fx = (14x - 3.0x²) N

∴ Work done W = ∫F dx = ∫(14x - 3.0x²) dx, limits = -1 to 2= [7x² - x³] from x = -1 to 2= [7(2)² - (2)³] - [7(-1)² - (-1)³]= [7(4) - 8] - [7 - (-1)]= 28 - 7= 21 J

Work done by the given force as the object moves from x = -1 m to x = +2 m is 21 J.

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Answer:

70,560 J

Explanation:

GPE = mgh = (1600 kg)(9.8 m/s²)(4.5 m) = 70,560 J

**GPE is independent of velocity (v)

Yes it is true  ,A broad group of actions with the intention of assisting others includes helping, sharing, providing comfort, contributing or volunteering, and cooperating.

Research on prosocial conduct has looked at the potential causes and effects of these behaviors as well as the various reasons that might be at play. Prosocial Behavior's Type 3. The factors. Actions that "benefit other people or society as a whole," such as assisting, sharing, contributing, cooperating, and volunteering, are considered prosocial conduct, also known as "voluntary behavior intended to benefit another." Evidence demonstrates that prosociality is essential to social groupings' wellbeing on a variety of measures. Empathy has significant evolutionary roots and is a powerful motivator of prosocial action. Children benefit from the development of desirable qualities fostered by prosocial activity.

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