Suppose that Young's experiment is performed with light of wavelength 663 nm. The slits are 1.41 mm apart, and the viewing screen is 4.46 m from the slits. How far apart are the bright fringes in meters

The system released 134 J of energy into the surrounding while doing 16 J of work.

What is energy ?

The ability to exert a force that causes an item to move is what is meant by the definition of energy as the "power to accomplish work."

We use thermodynamics principles in this situation. There are already obtained relationships for intense properties like internal energy (U), heat transfer (Q), and work (W) that were based on differential equations. The formula is

ΔU = Q + W

But since these factors depend on their signs, we must remember to take them into account. Van Ness, Smith, and Abbott assert that declining has a negative sign convention. If work is being done ON the system, the sign is positive; however, if work is being done BY the system, the sign is negative. in this instance,

ΔU = -150 J

W = -16 J

Then , we can determine Q as follows

- 150 J = Q - 16 J

Q = - 134 J

Thus 134 J of heat of released by the system into the surroundings.

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The small airplane is sighted approximately 231.8 km north of the airport, Given that the airplane left the airport and was later seen 250 km away, making an angle of 22 degrees east of north, we can treat this situation as a right-angled triangle with the angle between the north direction and the airplane's position being 22 degrees.

To find the distance north, we'll use the cosine function. The formula for cosine is:

cos(angle) = adjacent side / hypotenuse

In this case, the adjacent side represents the distance north, and the hypotenuse is the total distance of 250 km. We want to find the adjacent side, so we'll rearrange the formula as:

adjacent side = hypotenuse * cos(angle)

Plugging in the values:

adjacent side = 250 km * cos(22 degrees)

Ensure your calculator is set to degrees mode, and then compute the cosine value. Multiply it by 250 km:

adjacent side ≈ 250 km * 0.9272 ≈ 231.8 km

The small airplane is sighted approximately 231.8 km north of the airport.

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The reference equality is tested using the == operator. True. If obj1 and obj2 refer to same object, then obj1 == obj2 is true. True. A String object cannot be changed.

In programming, a string is a form of data that is used to data type rather than integers. Letters, numbers, symbols, and even spaces can all be found in a string, which is a collection of characters. In order for it to recognized as a string, it needs to be encapsulated in quotation marks.

A string is frequently implemented as just an array data structure of bits (or words) that records a sequence of elements, usually characters, using some text encoding. Typically, a string is considered to be a data type.

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Answer:

HOPE THIS HELPS!!

Explanation:

Velocity is speed as well as distance mentioned.

The car is traveling at a constant speed of 20m/s but it may not be traveling in any particular direction. It would be taking many turns (left and right) or it would be moving in a circular manner.

So,it is at constant speed but not constant velocity.

The force due to gravity on a 41.63  kg object would be 408.39 N.

It can be defined as the force by which a body attracts another body towards its center as the result of the gravitational pull of one body and another,

The gravity varies according to the mass and size of the body for example the force of gravity on the moon is 1/6th times the force of gravity on the earth.

As given in the problem we have to calculate the force due to gravity on a 41.63 kg object.

Force= mass ×acceleration

The acceleration due to the gravity of the earth is 9.81 m/s²

Force = 41.63 ×9.81 N

         = 408.39 N

Thus, the force because of the gravity on a 41.63- kg object comes out to be 408.39 N.

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Answer:

Sorry I'm wrong The person above is correct.

I tried.

Answer:

The net force on the brick is 0N and the brick remains at rest.

Explanation:

Net force = 5N - 5N

= 0N

Answer:

The grapefruit dropped 2.54 m and hit the ground at 7.06 m/s

Explanation:

Free Fall Motion

A free-falling object falls under the sole influence of gravity. Any object that is being acted upon only by the force of gravity is said to be in a state of free fall. Free-falling objects do not encounter air resistance.

If an object is dropped from rest in a free-falling motion, it falls with a constant acceleration called the acceleration of gravity, which value is \(g = 9.8 m/s^2.\)

The final velocity of a free-falling object after a time t is given by:

vf=g.t

The distance traveled by a dropped object is:

\(\displaystyle y=\frac{gt^2}{2}\)

Given a grapefruit free falls from a tree and hits the ground t=0.72 s later, we can calculate the height it fell from:

\(\displaystyle y=\frac{9.8\cdot 0.72^2}{2}\)

y = 2.54 m

The final speed is computed below:

\(vf=9.8\cdot 0.72\)

vf = 7.06 m/s

The grapefruit dropped 2.54 m and hit the ground at 7.06 m/s

No, the sun cannot explain global warming. Global warming is a phenomenon in which the temperature of the Earth's surface and atmosphere is rising continuously due to human activities such as deforestation, burning of fossil fuels, and industrialization.

This increase in temperature cannot be explained only by an increase in solar radiation.There are several factors which contribute to global warming, including greenhouse gases such as carbon dioxide, methane, and water vapor. These gases trap heat in the Earth's atmosphere, which causes the planet's temperature to rise. The sun's radiation does contribute to global warming, but it is not the main cause.

i) To calculate the increase in solar radiation that would cause the Earth to warm up by 1 K, we can use the following formula:ΔS = ΔT / αWhere ΔS is the increase in solar constant, ΔT is the increase in temperature, and α is the Earth's albedo (reflectivity).α = 0.30 is the standard value used for the Earth's albedo.ΔS = ΔT / αΔS = 1 K / 0.30ΔS = 3.33 W/m2So, to explain the increase in temperature of 1 K over the last hundred years, the solar constant would need to increase by 3.33 W/m2.

ii) The observed fluctuation of the solar constant over the past 400 years has been around 0.1% to 0.2%. This is much smaller than the 3.33 W/m2 required to explain the increase in temperature of 1 K over the last hundred years. Therefore, it is unlikely that the sun is the main cause of global warming.

The sun cannot explain global warming. While the sun's radiation does contribute to global warming, it is not the main cause. The main cause of global warming is human activities, particularly the burning of fossil fuels, which release large amounts of greenhouse gases into the atmosphere.

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Answer: During chemical changes particles do change with atoms or ions regrouping . Bonds (links) between atoms break and new ones form and energy is either given out or taken in.

Explanation:

Chemical reactions make particles to change and resulting to change atoms or ions via regrouping .

The chemical reaction is the reaction between two reactants that led to the formation of products.

The products are substances that forms after reaction. The reactants are the substances which are original materials.

Bonds between atoms break and make new ones. In this process, energy is either rejected or taken in.

The particle are the electrons which are shared between the atoms of same or different elements.

The electrons in the valence get donated or accepted by the atoms and form bond. When the electrons are donated, the bonds break and when electrons are accepted, bonds are formed. So, the new element or compound is formed.

Thus, the chemical reaction are responsible for change in atoms due to change in particles.

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Answer:

i don't really know but i think yes sorry if it is wrong

Answer:

True

Explanation:

Answer and Explanation:

True I believe bc if you put a certain amount of force on an object it'll move and depending on where you place the force on the object it'll move in that direction. How much force and how much weight the object has will determine the speed...

cause there's no gravity therefore they appear weightless

Answer:

Oxygen, Argon, Carbon

edge2020

Answer:

carbon, oxygen, argon,

Explanation:

:)

(3)False:a net force causes no change in an object's motion

(4)True: If Manuel exerts a force of 10 N to push a desk to the rigth at the same tiem Lynn exerts a force of 15 n to push the desk to the left , the desk will move to the left

Explanation

Step 1

(3)

Force is a push or pull on an object that produces acceleration in the body on which it acts

Newton's second law states that the time rate of change of the momentum of a body is equal in both magnitude and direction to the force imposed on it.

therefore, the answer is

False a net force causes no change in an object's motion

Step 2

(4)

a) Diagram:

to find the net force, add the vectos( let positive to the rigth)

as the net force is negative,object willmove to the left,so

the answer is

True: If Manuel exerts a force of 10 N to push a desk to the rigth at the same tiem Lynn exerts a force of 15 n to push the desk to the left , the desk will move to the left

I hope this helps you

The rock was launched in the upward direction with an initial velocity of 8.58 m/s.The speed of the rock 4.5 seconds after launch is  35.52 m/s.

Given:

Time after launch (t) = 2.1 s

Rising rate (v) = 12 m/s

(a) By using the equation of motion v = u + at

where,

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

v = u + at

12= u + (9.8) × 2.1 s

u = 12 - (9.8 m/s² × 2.1 s)

u = 12 - 20.58

u = -8.58 m/s

The negative sign indicates that the rock was launched in the upward direction with an initial velocity of 8.58 m/s.

(b) To calculate the speed 4.5 seconds after launch,

v = u + at

v = -8.58 + (9.8) × 4.5 s

v = 35.52 m/s

The speed of the rock 4.5 seconds after launch is  35.52 m/s.

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The opposite charges are pulled away in solution and become free. Option D

We know that when we add an ionic substance into water that the ionic substances would become dissolved in the water. The meaning of this is that the ions that are in the substance would be drawn apart by the molecules of water. The process that makes the ions to be drawn apart by water is what we call solvation.

Now when there is solvation, we would notice that the positive end of the water dipole would surround the negative ion and the negative part of the water dipole would surround the positive ion.

Here we can see that the chloride ion is surrounded as such as so also is the potassium ion. This would lead to the pulling apart of the ions by the water and they become free in solution.

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Answer:

A. 290,400

Explanation:

The kinetic energy of a car is 290,400J.

Kinetic energy is directly proportional to the mass of the object and to the square of its velocity: K.E. = 1/2 m v2.

ke = 1/2mv^2

By using the formula, we get

= 1/2 * 1200 * 22^2

= 600 * 484

= 290,400 J

Kinetic energy is a form of energy that an object or a particle has by reason of its motion. If work, which transfers energy, is done on an object by applying a net force, the object speeds up and thereby gains kinetic energy.

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Answer: Force = 870 N  

Explanation:

acceleration = a = (final velocity - initial velocity) / time elapsed

a = (0-30)/.005 = -6000 m/s2 (negative sign means the ball is slowing down)

Force = F = mass x acceleration = ma

F = (0.145 kg)(6000 m/s2) = 870 N away from the player throwing the ball

The magnitude of the force on the player catching the ball is equal, 870N.  The mitt acts on the ball with an equal and opposite force (Newton's 3rd Law of Motion)

The magnitude of the Electrostatic force is proportional to the square of the distance between the two charges. As a result, doubling the distance between the two charges reduces the attraction or repulsion to one-fourth of its original magnitude.

If the distance between objects is doubled, the force of attraction is 1/4.

If the distance between objects is doubled, the force between objects is quartered. If the distance between objects is tripled, the force between them is 9 times smaller. If the masses of both bodies double, the force between them quadruples.

Electrostatic force is a non-contact force. They pull and push things without touching them. When some materials rub against each other, something called a "charge" can move from one surface to another. Charged objects attract other uncharged objects and can push or pull other charged objects.

As the distance between two charges increases, the repulsive force between them decreases. For equal charges, the electrostatic force decreases as the distance between the two charges decreases.

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The claim that the sampling rate in digitizing a sound wave involves measuring and recording at regular time intervals is incorrect. Instead, the sampling rate determines the number of samples captured per unit of time, while the sampling interval refers to the regular time intervals between measurements.

When you digitize a sound wave, the process involves converting the continuous analog signal into discrete digital samples. The sampling rate refers to the number of samples taken per unit of time. It represents the frequency at which the analog signal is measured and recorded.

The sampling rate determines the fidelity of the digital representation of the sound wave. A higher sampling rate captures more detail and accurately reproduces the original analog signal. The sampling rate is typically measured in samples per second, or hertz (Hz).

The options provided in the question are not accurate in describing the sampling rate. The correct term to represent the regular time intervals at which the sound wave is measured and recorded is "sampling interval" or "sampling period." The sampling rate determines the spacing between these intervals.

Therefore, the statement "When you digitize a sound wave, you measure and record its at regular time intervals called the sampling rate" is false.

The sampling rate determines the number of samples taken per unit of time, while the sampling interval refers to the regular time intervals at which the sound wave is measured and recorded.

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Answer:

A

Explanation:

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sodium channel  is responsible for the rapid depolarization phase of potentials that originate in the sa nodal cells.

The resting membrane potential of the SA nodal cells is unstable and spontaneously depolarizes due to a pacemaker potential. The "strange" Na+ current and a drop in the conductance of the inward rectifier K+ channel are to blame for this.

The rapid transmission of depolarizing impulses throughout cells and cell networks by sodium channels, which enable the coordination of higher activities from locomotion to cognition, plays a key role in physiology. These channels hold a particular place in physiology history as well.

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Answer:

V = 0.87 volt

Explanation:

Given that,

Charge, \(q=7.3\times 10^{-17}\ C\)

Electric potential energy, \(U=6.4\times 10^{-17}\ J\)

We need to find the value of electric potential at a point. The relation is as follows :

\(V=\dfrac{U}{q}\)

Where

V is electric potential

So,

\(V=\dfrac{6.4\times 10^{-17}}{7.3\times 10^{-17}}\\\\V=0.87\ V\)

So, the value of the electric potential at a point is equal to 0.87 Volts.

Answer:

You can describe the motion of an object by its position, speed, direction, and acceleration. An object is moving if its position relative to a fixed point is changing. Even things that appear to be at rest move.

Explanation:

Physics lab helium has the special property that its internal energy is directly proportional to its absolute temperature. If we consider a flask of helium with a temperature of 2c, then after the helium is heated until it has twice the internal energy, its temperature will be 4°C.

We need to understand that the internal energy of helium is directly proportional to its absolute temperature. This means that if the internal energy is doubled, the absolute temperature will also double.

Given that the flask of helium initially has a temperature of 2°C, we need to determine the temperature after it is heated until it has twice the internal energy.

Since the internal energy is directly proportional to the absolute temperature, we can set up a proportion to solve for the new temperature:

       Initial temperature / Initial internal energy = Final temperature / Final internal energy

Plugging in the values, we have:

       2°C / Initial internal energy = Final temperature / 2 times Initial internal energy

Cross-multiplying, we get:

       2°C * 2 times Initial internal energy = Final temperature * Initial internal energy

Simplifying further, we have:

       4 times Initial internal energy = Final temperature * Initial internal energy

Now, we can cancel out the Initial internal energy:

       Final temperature = 4

Therefore, after the helium is heated until it has twice the internal energy, its temperature will be 4°C.

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Answer:

25kg

Explanation:

The weight just refers to the number written in the box. Weight can be in kg, lbs, and more.