If the Earth absorbs more insolation from the sun than it radiates back, the Earth _____________.
Group of answer choices
scatters it
reflects it
warms

Answer:

b : 60m

Explanation:

when a plane mirror is placed horizontally on a level ground at a distance of 60m from the top of tower as shown in figure. a/c to question, The top of tower and its image in the mirror subtend an angle of 90° at the eyes. so, angle made by top of tower and horizontal line is 45° as

The equivalent resistance for the parallel connected resistance will be

\(\dfrac{1}{R_{eq}}=\dfrac{1}{R_1}+\dfrac{1}{R_2}\)

Resistance is a measure of the opposition to current flow in an electrical circuit. Resistance is measured in ohms, symbolized by the Greek letter omega (Ω)

Now if two resistances are connected parallel then the voltage on the resistances will be different and the same current will flow from both resistances.

\(V_{eq}=V_1+V_2\)

\(I_{eq}R_{eq}=I_1R_1+I_2R_2\)

Since \(I_{eq}=I_1=I_2\)

\(R_{eq}=R_1+R_2\)

Hence the equivalent resistance for the parallel connected resistance will be

\(\dfrac{1}{R_{eq}}=\dfrac{1}{R_1}+\dfrac{1}{R_2}\)

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To find the time it took for the car to accelerate, you can use the formula:

t = (v - u) / a

where t is the time, v is the final velocity, u is the initial velocity, and a is the acceleration.

Plugging in the given values, you get:

t = (26 m/s - 19 m/s) / (205 m / t^2)

You can then rearrange the equation to solve for t:

t = sqrt(205 m / (26 m/s - 19 m/s))

Solving for t, you get:

t = sqrt(205 m / 7 m/s) = sqrt(29.3 s^2) = 5.4 s

So it took the car approximately 5.4 seconds to accelerate from 19 m/s to 26 m/s.

Answer:

this is why the larger object has a smaller acceleration

Explanation:

According to Newton’s Second Law, when the same force is applied to two objects of different masses, the object with greater mass will experience a smaller acceleration and the object with less mass will experience a greater acceleration. .

the larger mass will also have a larger weight because of gravity

If the spring constant is known, the extension or compression of the spring can be used to calculate the applied force (pull or push) on the spring.

According to Hook's law, the force applied to an elastic material is directly proportional to the extension of the material.

The force applied;

F = kx

where;

The applied force can be in form of push or pull. A push force can result in compression of the spring while a pull force can result in extension of the spring.

If the spring constant is known, the extension or compression of the spring can be used to calculate the applied force (pull or push) on the spring.

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Answer:

The school is 3.40 meters tall.

Explanation:

You need to equations to solve this question. You need to know the time it takes to reach the ground and the time it takes for the two observers to hear it. The distance in both cases is the same, so the two conditions can be equated to each other.

Equations.

d = the height of the buildings

a is the acceleration due to gravity and is a constant 9.8i1 m/s^2

t1 is the time it takes to hit the ground

The initial velocity = 0 because the rock was dropped

Equation One

d = vi*t + 1/2 a t^2

Equation Two

d = v * t2

v is the velocity of sound

t2 is the time it takes for the sound to come back from hitting the ground.

d is the height of the school

Solution

vi*t + 1/2 a t1 ^2 = v * t2

t2 = 0.81 - t1

The times are separate, but they add up to 0.81 so

t1 I+ t2 = 0.81

t2 = 0.81 - t1

Rewrite the equation putting in the givens. Remember vi = 0

1/2 9.81  t1^2 = 340 * (0.81 - t1)        Remove the brackets

4.91* t1^2 = 275.4 - 340 t1               Transfer the right side to the left

4.91*t1^2 + 340t1 - 275.4 = 0           Use the quadratic formula to solve

a = 4.91

b = 240

c = -275.4

t1 = (-240 +/- sqrt(240^2 - 4*4.91*-275.4))/(2*4.91)

t1 = .8007 = 0.80

t1 + t2 = 0.81

0.80 + t2 = 0.81 - 0.80

t2 = 0.01

What you have found is the time it takes for the sound to come back to the two observers which is 0.01 seconds

d(height of school) = 340 * 0.01 = 3.4 meters

At speeds over 30 mph, you should maintain a following distance of at least three full seconds behind the vehicle ahead of you.

As a general rule and common sense at a speed of 30 mph you can leave three full seconds so that you can achieve a prudent distance between the car you are driving and the car in front in order to be able to perform some kind of maneuver if an accident or unforeseen event occurs.

To count the full three seconds you can use the technique of counting the Mississippis as follows: Mississippi one, Mississippi two, Mississippi three.

An accident is an unexpected event that generally causes damage, injury or negative consequences.

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The position in the graph between 4 - 6 seconds is the region of constant velocity.

The term constant velocity refers to the period in the graph when the velocity is not changing with time. As such, the graph is shown to be a flat portion at such a point.

Hence, it follows that the position in the graph between 4 - 6 seconds is the region of constant velocity.

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Answer:

P = 113.4 N

Explanation:

We know that if it is on the Moon it has another gravity. Therefore, it is known through the International System that the gravity of the Moon is 1.62 m/s², so..

Data:

Use formula:

Replace and solve:

The man's weight is 113.4 Newtons.

Greetings.

According to the metric system, 1 metric ton (also known as a tonne) = 1,000,000 grams.  In the United States and some other countries, a ton is often used to refer to a unit of weight.

The metric system is a system of measurement used in most of the world that is based on the International System of Units (SI). The SI unit for mass is the kilogram (kg), which is defined as the mass of a specific cylinder of platinum-iridium alloy kept at the International Bureau of Weights and Measures in France.

The metric ton, also known as the tonne, is a unit of bin the metric system that is equal to 1,000 kilograms. This unit is commonly used to measure large masses of objects such as vehicles, cargo, and building materials.

Since 1 kilogram is equal to 1,000 grams, 1 metric ton is equal to 1,000 x 1,000 = 1,000,000 grams. This means that if you have a mass of 1,000,000 grams, you have a mass of 1 metric ton. Similarly, if you have a mass of 2,000,000 grams, you have a mass of 2 metric tons, and so on.

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A lightbulb need 300 J to stay on for 5 Seconds. How much power was needed to keep the lightbulb on for this amount of time?

We know that,

\( \: { \boxed{ \sf{Power = \dfrac{Work}{time}}}}\)

Where,

\( \longrightarrow \sf \dfrac{300}{5} \\ \\ \longrightarrow \sf60 \: watts \\ \\ \)

Therefore, 60 watts power is needed to keep the lightbulb on.

The main difference between the energy of moving water and the energy of stored water is that the energy of moving water has kinetic energy whereas the energy of water that is stored has potential energy.

Potential energy is defined as the stored energy in any object due to its position while on the other hand, while Kinetic energy is defined as the energy an object has due to its motion. The energy stored in the water molecules which is used for the movement of these molecules is called water potential. Stored water has potential energy but the kinetic energy is present only in the moving molecules of water.

So we can conclude that moving water has kinetic energy while on the other hand, the energy of water that is stored has potential energy.

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Answer:

Microwaves

Radiowaves.

Answer:

radio waves

microwaves

infrared (IR)

visible light

ultraviolet light (UV)

X-rays

gamma rays

Explanation:

these are the electromagnetic spectrum. they are arranged in decreasing wavelength and increasing energy and frequency.

Answer:

18 groups are in the modern periodic table

Answer:

There's 18 groups I'm pretty sure

Answer:

maybe a. what you think . about that

The graph of the relationship between amplitude and decibel level of sound is not a linear graph but a logarithmic graph.

It is known as the Sound Intensity Level graph, where the amplitude of the sound is plotted on the x-axis, and the decibel level of sound is plotted on the y-axis.

As the amplitude of the sound increases, the decibel level increases as well. The relationship is not directly proportional, as a small change in amplitude can result in a significant change in decibel level. For example, a sound with an amplitude of 1 Pa has a decibel level of 0 dB, whereas a sound with an amplitude of 10 Pa has a decibel level of 20 dB. This indicates that the decibel level is increasing exponentially with the increase in amplitude.

Moreover, the graph shows that the human ear has a limited range of hearing, which is between 0 dB and 140 dB. Beyond this range, sounds become too loud to hear or can cause damage to the ear. Therefore, it is important to monitor the decibel level of sound to protect our hearing.

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The correct answer is Heat and pressure.

Weathering and erosion have the potential to transform sedimentary rock back into sediment. It could also produce a different kind of rock. It may transform into metamorphic rock if it is buried deep enough in the crust to be exposed to higher temperatures and pressures.

Sedimentary rocks frequently exhibit recognisable bedding or layering.

Although they began as a different kind of rock, metamorphic rocks have undergone significant alteration from their igneous, sedimentary, or previous metamorphic forms. When rocks are exposed to extreme temperatures, high pressures, hot mineral-rich fluids, or, more frequently, some combination of these conditions, metamorphic rocks are created.

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Answer:

  C.  16.3 m/s

Explanation:

You want to know the final velocity of the combined mass of a 2130 kg car at 21.5 m/s after collision with a 2240 kg car at 11.4 m/s in the same direction. Momentum is conserved.

The momentum of each object is the product of its mass and velocity. When momentum is conserved, the momentum of the mass after the collision is the same as that before the collision.

  m1·v1 +m2·v2 = (m1 +m2)·v3

Then the velocity after the collision is ...

  v3 = (m1·v1 +m2·v2)/(m1 +m2)

You may recognize this as the weighted average of the initial velocities, where the weights are the respective masses of the objects.

  v3 = (2130·21.5 +2240·11.4)/(2130 +2240) ≈ 16.3

The final velocity is 16.3 m/s, matching choice C.

When an ion enters a magnetic field, its trajectory will be affected due to the interaction between its charge and the magnetic field.

The distance between the points where the ion enters and exits the magnetic field depends on the specific conditions, such as the ion's charge, mass, velocity, and the strength of the magnetic field. Without additional information, it is impossible to determine the precise distance.

However, the options given are 300 cm, 200 cm, 100 cm, and 400 cm. Magnetic Field is the region around a magnetic material or a moving electric charge within which the force of magnetism acts.

A pictorial representation of the magnetic field which describes how a magnetic force is distributed within and around a magnetic material.

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Answer:

C) ballon does determine the direction

Explanation:

Explanation:

its B, It would push it the opposite

When an electron is in its ground state in a one-dimensional box, the longest-wavelength photon it can absorb is 580 nm. The next longest wavelength photon that can be absorbed is 1,547 nm.

The next longest wavelength photon it can absorb, again starting in the ground state, can be calculated as follows: In a one-dimensional box, the energy levels of an electron can be calculated using the following formula:

En = (n² * h²)/(8mL²)where n is the energy level, h is Planck's constant, m is the mass of the electron, and L is the length of the box.

The wavelength of the photon absorbed is given by the following formula:λ = hc/E

where λ is the wavelength, h is Planck's constant, c is the speed of light, and E is the energy of the photon.

To determine the next longest wavelength photon that can be absorbed, we need to determine the energy difference between the ground state and the next energy level. We can use the formula above to calculate the energy levels for n = 1 and n = 2:

For n = 1: E1 = (1² * h²)/(8mL²)

For n = 2: E2 = (2² * h²)/(8mL²)

The energy difference between the two levels is: E2 - E1 = [(2² * h²)/(8mL²)] - [(1² * h²)/(8mL²)] = (3/8) * (h²)/(mL²)

We can now use the energy difference to determine the wavelength of the next longest wavelength photon:

λ = hc /(E2 - E1)

λ = hc /[(3/8) * (h²)/(mL²)] = 8/3 * L * c/nm

Therefore, the next longest wavelength photon that can be absorbed is 1,547 nm.

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Complete Question:

An electron is in a one-dimensional box. When the electron is in its ground state, the longest wavelength photon it can absorb is 500 nm. What is the next longest wavelength photon it can absorb, again starting in the ground state?

Answer:

\(\text{Weight} = \text{Mass} \times \text{Gravitational acceleration}\)

Explanation:

To meet the safety specifications for "The MATLAB House of Horror" ride, the engineers can use the below conditional statement:

MATLAB

age = % rider's age

hasHeartCondition = % boolean indicating if the rider has a heart condition

if age >= 17 && ~hasHeartCondition

   % Allow the rider to enter the ride

else

   % The rider does not meet the safety requirements for this ride

end

The code means that if a person who wants to ride has a heart condition, they cannot ride. The age of the rider is also important.

This code uses some technical words like "conditional statement" and "boolean variable", but it's basically just talking about two things that affect whether someone can ride or not: how old they are and whether they have a heart condition. This checks if the rider is 17 or older. The symbol && helps to connect many conditions.

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When he is at school, a Hispanic teenager will likely use English as his primary language. at home, his family encourages him to speak Spanish. This linguistic process is known as code-switching.

The linguistic process that is being described in the question is known as code-switching. Code-switching is the ability to switch between different languages or dialects in a conversation or even within a single sentence. In this case, the Hispanic teenager is using English as their primary language in school, while their family encourages them to speak Spanish at home.

Code-switching is a common occurrence in multilingual societies and can happen for a variety of reasons, including social status, cultural identity, or simply for convenience. It is important to note that code-switching is not a sign of poor language skills but rather a reflection of the complex linguistic and cultural identity of the individual. Being bilingual or multilingual can be an asset in today's globalized world, and code-switching is just one example of how individuals navigate multiple languages and cultures in their daily lives.

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Larry Page, real name Lawrence Edward Page, is a computer scientist and entrepreneur from the United States who co-founded Goo-gle, one of the most well-known websites on the Internet, with Sergey Brin on March 26, 1973 in East Lansing, Michigan.

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Answer:

Temporary? You have two options

If you have a positively charged object, bring it close to the LEFT side of the ball (not touching it!).

If you have a negatively charged object, bring it close to the RIGHT side of the ball (again, not in contact).

Either way, the electron cloud will migrate towards the right side of the of your sphere.

Another option is to have a capacitor large enough to house the sphere inside it, and polarize it by attaching it to a DC source making sure that the negative plate of it is to the right of the sphere.

The position the 20 kg child should seat in order to balance the seeesaw is determined as 1 m.

Let the position of the 20 kg child from the center of the seesaw = x

Apply the principle of moment, taking moment about the pivot as shown below;

clock wise moment = antilock wise moment

15(2m) + (20x) = 25 (2m)

30 + 20x = 50

20x = 50 - 30

20x = 20

x = 20/20

x = 1 m

Thus, when the 20 kg child seats at 1 m from the end of the 15 kg child the seesaw will balance.

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Answer:

Put away guns in a lockbox that is secure and in a discrete location

Explanation: Took the test. Trust me ;)

Answer:

Put away guns in a lockbox that is secure and in a discrete location

Explanation: Just Trust Me

Answer:

600-30=570, 570+30=600. The child needs to be pushed 570m away from the ground