At which temperature does the motion of atoms and molecules stop(A) 0 degrease C (B) 0 C (C) 0 degrease K (D) 0 K

Answer:

yes

Explanation:

velocity is vector though but speed is scalar

velocity requires direction

so velocity is literally speed with direction

a. The work done by the spring on the box is equal to the change in kinetic energy of the box as it comes to a stop and then compresses the spring. The initial kinetic energy of the box is:

KEi = (1/2)mv² = (1/2)(25 kg)(2.0 m/s)² = 50 J

At maximum compression, all of the kinetic energy of the box has been converted to potential energy stored in the compressed spring. Therefore, the work done by the spring is:

W = KEi = 50 J

b. The potential energy stored in a spring is given by:

PE = (1/2)kx²

where k is the spring constant and x is the displacement from the equilibrium position. At maximum compression, x = -0.50 m and the potential energy stored in the spring is equal to the initial kinetic energy of the box:

PE = KEi = 50 J

Substituting the given values:

(1/2)k(-0.50 m)² = 50 J

Solving for k:

k = (2)(50 J) / (0.50 m)² = 800 N/m

c. The frequency of oscillation of the box is given by:

f = (1/2π)√(k/m)

Substituting the given values:

f = (1/2π)√(800 N/m / 25 kg) = 2.54 Hz

d. The velocity of the box as a function of position x can be sketched as follows:

At the equilibrium position (x = 0), the box has zero velocity. As it moves to the right, it begins to compress the spring, which slows it down until it reaches maximum compression at x = -0.50 m. At this point, the box has zero velocity again and begins to move back to the right. As it moves away from the spring, it gains speed until it reaches the equilibrium position, where it has maximum velocity. It continues to move to the right and compress the spring again, repeating the cycle. The graph of velocity versus position is a sinusoidal wave, with the maximum velocity at x = 0 and the minimum velocity at x = ±0.50 m.

Electromagnetic waves are a form of radiation that occurs when electric fields and magnetic fields are coupled with each other. Thus, option C is correct.

An electromagnetic field is formed with an electric field and a magnetic field that are dependent on each other. The two fields are perpendicular to each other and travel in that direction as well.

Electromagnetic waves are not elastic waves either and can travel in a vacuum. They are different from mechanical waves as electromagnetic waves can travel in the absence of a medium. They travel at the speed of 3x\(10^{8}\)m/s. Thus, only option C is right.

To learn more about electromagnetic waves:

brainly.com/question/14953576

#SPJ4

Complete question:-

Which of the following are the characteristics of electromagnetic waves?

1. They are elastic waves.

2. They can also move in a vacuum.

3, They have electric and magnetic components which are mutually perpendicular.

4, They move with a speed equal to 3 lakh meters per second.

Select the correct answer using the code given below :

A) 1, 2, 3 and 4

B) 1, 2, and 4

C) 2 and 3 only

D) 3 and 4 only

Newton's first law of motion:

Newton's first law of motion states that a body in motion tends to remain in motion at a constant velocity unless acted on by a net external force.

Hence, the correct option is (B)

Explanation:

Transmutation means change in neutron numbers u

Like for example

When Potassium (N=19 ) goes through beta decay it forms (N=20)

Here no change in neutrons (Same 28)

So no trnasmutaions.

Option B

When a substance lose an electron, it becomes positively charged. The dust particle will acquire positive charge when it losses electrons when it passes through the positively charged grid.

An atom contains equal number of electrons and protons. Hence, it possess no net charge and being neutral. When the atom lose or gain electrons it becomes ions.

When the atom lose one electron its number of protons dominates over that of electrons and it acquires a positive charge. When the atom gain an electron the reverse happen and it acquires a negative charge.

Here, the dust particle loses its electron to the positive grid thus it will gain a positive charge.  

Find more on charged particles:

https://brainly.com/question/12531313

#SPJ9

Answer:

Hydrogen in the core of the star is converted to helium by nuclear fusion. When the hydrogen supply in the core begins to run out, and the star is no longer generating heat by fusion, the core becomes unstable and contracts.

Explanation: i took the test

Answer:

C if u know u know

Explanation:

The specific heat capacity of water is 1 calorie per gram per degree Celsius. This means that 1 gram of water will absorb 1 calorie of heat for every 1 degree Celsius increase in temperature.

In this case, we have 32.0 grams of water that is heated from 25.0 degrees Celsius to 80.0 degrees Celsius. The change in temperature is therefore 80.0 - 25.0 = 55.0 degrees Celsius.

The amount of heat absorbed by the water is therefore 32.0 x 55.0 = 1760 calories.

To convert calories to joules, we can use the following conversion factor:

1 calorie = 4.184 joules

Therefore, the amount of heat absorbed by the water in joules is 1760 x 4.184 = 7374 joules.

Therefore, the answer to your question is that 32.0 grams of water absorbs 7374 joules of heat when it is heated from 25.0 degrees Celsius to 80.0 degrees Celsius.

Learn more about specific heat capacity here:

https://brainly.com/question/28302909

#SPJ11

Answer:

Initial velocity, u = 600km/h 

Final velocity, v = 1100km/h

Acceleration = 10km/h/s=600km/h2

From relation, 

a=t(v−u)

t=a(v−u)

t=600(1100−600)

=500/600=5/6 hr=50 sec

Answer:

D. All of the above

Explanation:

Global warming may cause all of the given choices.

Global warming is the rise in surface temperature. This is due to the trapping of heat within the earth surface.

It is as a result of huge amount of greenhouse gases within our atmosphere. They typically permit short wave radiations to escape and they do not allow short wave radiation to pass through. This in turn produces heat.

The speed of the car after 5 seconds, given that the car has a uniform acceleration of 2 m/s² is 10 m/s

The following data were obtained from the question:

The final speed of the car can be obtained as demonstrated below:

v = u + at

Inputting the various parameters, we have

v = 0 + (2 × 5)

Clear bracket

v = 0 + 10

v = 10 m/s

Thus, from the above calculation, we conclude that the speed after 5 seconds is 10 m/s

Learn more about speed:

https://brainly.com/question/1861559

#SPJ1

Clear question:

A car starts at rest and has a uniform acceleration of 2 m/s² .Find the speed of the car the car after 5 seconds.

We can know that galaxy clusters contain a lot of mass in the form of hot gas that fills spaces between individual galaxies with the use of X-ray Telescopes.

An X-ray telescope may focus the light from an X-ray star onto an electronic eye in the same way that an optical telescope improves our capacity to view dim stars. An imaging detector can see several X-ray-generating objects at the same time or make images of diffuse X-ray emission zones.

It has been used to detect intermediate-mass black holes and examine ultraluminous X-ray sources. NuSTAR, the most current X-ray mission launched, is focused to monitoring hard X-rays (higher-energy X-rays than can be observed by other orbiting X-ray telescopes).

X-ray astronomers' stunning findings, such as neutron stars and black holes in binary systems and hot gas filling the space among clusters of galaxies, have transformed our understanding of the Universe.

Learn more about  X-ray Telescopes:
https://brainly.com/question/14683213
#SPJ1

Answer:

.V=12v

Explanation:

P=VI

54W=V×4.5A

V=54W/4.5A

V=12V

If an automobile drives 500 miles at an average speed of 54.9%, it will take 14.6 hours to finish the journey. The total distance that the thing has gone is its average speed.

divided by the entire amount of time it took to go the distance. The equation for average speed is: The difference between instantaneous and average speed.

The measurement of distance between two objects or points can be quantitative or occasionally qualitative. Distance in physics or common language can refer to a physical length or an assumption based on other factors (e.g. "two counties over").

Time taken = distance travelled/ speed

Time taken = 500 miles/ 54.9minutes/hr

Time taken = 804.67 km/54.9minutes/hr

Time taken = 14.6 hours

Learn more about average speed here

https://brainly.com/question/12322912

#SPJ4

Answer: The light bends because light travels fast but it slows down in a denser medium. For example light refracts in water or it bends after passing through air. When light passes through air ( a less dense medium ) then through water ( a more dense medium ) the beam of light bends because light travels more slowly in a denser medium then it picks up its pace again once it passes. The density of the substance determines how much the light is refracted. I hope this makes sense and I hope this answered your question!! :)

Acceleration be a

\(\\ \rm\Rrightarrow a=\dfrac{v-u}{t}\)

\(\\ \rm\Rrightarrow a=\dfrac{1.8-1}{0.03}\)

\(\\ \rm\Rrightarrow a=0.8/0.03\)

\(\\ \rm\Rrightarrow a=26.67km/s^2\)

Question :-

Answer :-

\( \rule {180pt} {2pt} \)

Given :-

To Find :-

Solution :-

As per the provided information in the given question, we have been given that the Initial Velocity of the Meteoroid is 1 km/s . Its Final Velocity is given 1.8 km/s . Time is given as 0.03 seconds . And, we have been asked to calculate the Acceleration of the Meteoroid .

For calculating the Acceleration , we will use the Formula :-

\( \bigstar \: \: \boxed{ \: \sf {Acceleration \: = \: \dfrac{ \: v - ᴜ \: }{ᴛ} \: }} \\ \)

Where ,

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

\( \longmapsto \: \: \sf{Acceleration \: = \: \dfrac{ \: 1.8 \: - \: 1 \: }{0.03} } \)

\( \longmapsto \: \: \sf{Acceleration \: = \: \dfrac { \: \: 0.8 \: \: }{ \: \: 0.03 \: \: } } \\ \)

\( \longmapsto \: \: \sf{Acceleration \: = \: 26.72} \\ \)

Hence :-

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

The Patagonia region of Chile and Argentina features a large, elongated glacier approximately 90 km (56 mi) wide and 360 km (224 mi) long. this is an example of a(n): Ice field

The Patagonia region of Chile and Argentina is characterized by the largest ice fields in South America.

An ice field is a large mass of ice that covers part of the land.

The Patagonia is an area located in South America which is shared by Chile and Argentina.

Learn more about the Patagonia at: brainly.com/question/4206237

#SPJ4

Using the Pitzer correlation, the molar volume of acetylene vapor at 277.6 K and 19.7 bar is approximately 31.24 cm^3/mol.

To find the molar volume of acetylene vapor at a given temperature and pressure using the Pitzer correlation for the second virial coefficient, we can use the following equation:

B(T) = B0 + B1(T - Tc) + B2(T - Tc)^(3/2)

where B(T) is the second virial coefficient at temperature T, B0, B1, and B2 are constants, Tc is the critical temperature, and T is the temperature.

First, we need to calculate the constants B0, B1, and B2 using the given data:

B0 = 0.083 - (0.189 / Tc)^(1/2) - (0.001 / Tc)

B1 = 0.139 + (0.673 / Tc)^(1/2) - (0.950 / Tc)

B2 = 0.000012

Substituting the values into the equation, we can calculate the second virial coefficient B(T).

Next, we can use the ideal gas law to relate the molar volume V to the pressure P and temperature T:

PV = RT

Solving for V, we get:

V = RT / P

Substituting the values of R, T, and P, we can calculate the molar volume V in cm^3/mol.

Using the given data:

T = 277.6 K

P = 19.7 bar

Tc = 308.3 K

R = 8.314 J/mol·K

Acentric factor (ω) = 0.187

Calculating B(T) and V:

B(T) ≈ 0.001531 m^3/mol

V ≈ (8.314 J/mol·K * 277.6 K) / (19.7 bar * 10^5 Pa/bar) ≈ 31.24 cm^3/mol

Therefore, the molar volume of acetylene vapor at 277.6 K and 19.7 bar is approximately 31.24 cm^3/mol.

To know more about volume, click here:

brainly.com/question/28058531

#SPJ11

The Acceleration of the system is 6.41 m/s².

Given,

α= 15°, m₁ = 7kg

β= 65°, m₂ = 11 kg

Let, a be the acceleration and T is the tensions at the end it's the cord.

Let, the mass m₂ be coming down along the inclined plane along the inclined surface towards downward m₂g sin β and the tension in the upward direction,

Resultant force, m₂a=m₂g sin β -T

11a=((11) ×g sin 65°) -T  ...(i)

Now, considering the motion of m₁ which moves downwards, the forces are m₁g sinα, and T both are acting downwards.

Resultant force m₁a = m₁g sin α+T

7a =7g sin 15°+T  ...(ii)

Solving both the equations by adding them,

18a=11gsin 65°+7g sin 15°-T+T

18a=11gsin 65°+7g sin 15°=115.45

a=115.45/18=6.41 m/s²

Hence, the Acceleration of the system is 6.41 m/s².

Learn more about the acceleration here:

https://brainly.com/question/22048837

#SPJ10

a) The time elapsed from start to stop is approximately 14.44 seconds. b) The vehicle moves a distance of approximately 105.72 meters from start to stop.

a) To find the time elapsed from start to stop, we need to consider the acceleration phase and the deceleration phase. During the acceleration phase, the vehicle starts from rest and reaches a speed of 16 m/s with an acceleration rate of 1.8 m/s². Using the equation of motion v = u + at, where v is the final velocity, u is the initial velocity (0 m/s in this case), a is the acceleration, and t is the time, we can rearrange the equation to solve for time: t = (v - u) / a. Substituting the given values, we have t = (16 m/s - 0 m/s) / 1.8 m/s² = 8.89 seconds.

During the deceleration phase, the vehicle slows down at a constant rate of 1.1 m/s² until it stops. Again, using the same equation, we have t = (v - u) / a. Substituting the values, we get t = (0 m/s - 16 m/s) / -1.1 m/s² = 14.55 seconds.

To calculate the total time elapsed, we sum the time taken for acceleration and the time taken for deceleration: 8.89 seconds + 14.55 seconds = 23.44 seconds. However, since the vehicle starts from rest and ends at rest, we need to consider only the time until it stops, which is 14.55 seconds. Therefore, the time elapsed from start to stop is approximately 14.44 seconds.

b) To find the distance the vehicle moves from start to stop, we can use the equation of motion s = ut + (1/2)at², where s is the distance, u is the initial velocity, t is the time, and a is the acceleration or deceleration. During acceleration, the initial velocity is 0 m/s and the time is 8.89 seconds, so the distance covered during this phase is (1/2)(1.8 m/s²)(8.89 seconds)² = 71.8 meters. During deceleration, the initial velocity is 16 m/s and the time is 14.55 seconds, so the distance covered during this phase is (1/2)(-1.1 m/s²)(14.55 seconds)² = -68.5 meters (taking the negative sign since it is deceleration).

The total distance covered is the sum of these distances: 71.8 meters + (-68.5 meters) = 3.3 meters. However, since the negative sign indicates a direction opposite to the motion, we take the absolute value, resulting in a distance of approximately 3.3 meters. Therefore, the vehicle moves a distance of approximately 105.72 meters from start to stop.

Know more about Distance here: https://brainly.com/question/29552792

#SPJ11

The complete question is: An electric vehicle starts from rest and accelerates at a rate of 1.8 \(m/s^2\) in a straight line until it reaches a speed of 16 m/s. The vehicle then slows at a constant rate of 1.1 \(m/s^2\) until it stops.

a) How much time elapses from start to stop?

b) How far does the vehicle move from start to stop?

When compared to winds at the surface, winds at 2,000 feet are typically higher due to the absence of friction.

At the surface, winds are affected by friction with the Earth's surface, which slows them down and causes them to move in a more turbulent and erratic fashion. However, as winds move up in altitude, they encounter less and less friction, allowing them to increase in speed and flow in a more uniform and predictable manner.
While friction may still have some influence on winds at 2,000 feet, it is not as significant as at the surface. Therefore, winds at this altitude tend to move more smoothly and follow a more consistent path, often perpendicular to the isobars (lines of equal pressure) on a weather map. This makes them useful for aviation purposes, as pilots can use this information to plan their flight paths and take advantage of favorable tailwinds or avoid dangerous crosswinds.
In contrast, winds at the surface are more affected by local topography, temperature gradients, and other factors that can cause them to vary widely in direction and speed. Overall, winds at 2,000 feet are an important component of the Earth's atmospheric circulation system, and understanding their behavior is essential for predicting weather patterns and ensuring safe air travel.

Learn more about friction :

https://brainly.com/question/13000653

#SPJ11

The speed at which the stone hits the water is 13.6m/s and the initial height of the stone is 7.6m.

Initial velocity of stone =  6 ms⁻¹

At the maximum height, the final velocity, v = 0

Acceleration of the stone, g = 9.8 ms⁻²

Time taken to reach maximum height = t₁

t₁ = v - u/g

since the stone is travelling upwards, g = -9.8 m/s⁻²

t₁ = 0 - 6/-9.8

t₁ = 0.61 s

Time take to fall from maximum height, t = 2 - 0.61s

Time take to fall from maximum height = 1.39s

where u = 0 m/s

v = 0 + 9.8 * 1.39

v = 13.6 m/s

Initial height of stone = Height of bridge, H

Time taken by the stone to fall down from height, H in water, t = 2s

Initial velocity of stone = 6 ms⁻¹

Acceleration of the stone, g = 9.8 ms⁻²

H =  -6 * 2 + 9.8 * 2² /2

H = 7.6m

Therefore, the speed at which the stone hits the water is 13.6m/s and the initial height of the stone is 7.6m

Learn more about velocity and height at: https://brainly.com/question/13665920

A temperature of 54°F measures a temperature of about 12.222°C.

Degrees Celsius (°C) are used to express temperature in the metric system. Given that it is divided into 100 degrees, the Celsius scale is often known as the centigrade scale. The boiling point of water was at zero degrees Celsius, and the freezing point was at one hundred. Later, this scale was flipped, giving rise to the term "degree Celsius" and the sign °C. The temperature measurement scale and unit known as Fahrenheit is named after the German physicist Daniel Gabriel Fahrenheit, who developed it in 1724. The temperature units that are most frequently used around the world are Celsius and Fahrenheit. While Celsius is frequently used in regions like Europe, Asia, and Africa, Fahrenheit is more frequently used in the United States (USA).

Formula to convert Fahrenheit to Celsius:

ºC = (ºF - 32) / 1.8

°C = (54-32) / 1.8

°C = 22 / 1.8

°C = 12.222 (Ans)

To learn more about temperature, click at:

https://brainly.com/question/12897775

#SPJ4

Answer:

Newton believed that mass tells gravity how much force to exert. Einstein believed that mass tells space-time how to curve.

Explanation:

Isaac Newton believed that bodies on earth had a force of gravity pulling them down as a result of their masses.

Albert Einstein believed that the bodies were not pulled down but were moving around in a circular sphere/manner.

This confirms Newton believing that mass tells gravity how much force to exert and Einstein believing that mass tells space-time how to curve.

Answer:

first one is for the assignment second is for the quiz

Explanation:

Assignment - C.

Quiz - D.

The water pressure as it exits into the air is P2 = Patoms

b) The height, h of the standing column of water is 4.6m

By Bernoulli's principle,

p1 - p2 = ρgh

h = 45 × \(10^{3}\) / 1000 × 9.8

h = 4.6m

The relationship between a fluid's speed and pressure is described by Bernoulli's principle, which at first glance seems paradoxical. Many people think that Bernoulli's principle shouldn't be true, but this may be because they don't grasp what Bernoulli's principle actually states. According to Bernoulli's principle, which is stated below: Higher fluid velocity sites will experience less pressure than slower fluid velocity points inside a horizontal fluid flow. Thus, in a horizontal water pipe with a variable diameter, areas of fast-moving water will experience lower water pressure than areas of slow-moving water Since many individuals equate high speeds with high pressures, this may seem paradoxical to them. However, we'll demonstrate in the following section that this is really another way of expressing that water will accelerate if there is greater pressure behind it than in front of it. We will explain how Bernoulli's concept came to be, illustrate it in greater detail, and attempt to lessen its mystique in the part that follows.

Learn more about Water pressure here:

https://brainly.com/question/15851784

#SPJ4

Answer:

Liquid

Explanation:

To turn liquid into gas, you add heat, to remove heat from gas, you make liquid.

B

They store the radioactive waste in pools of water until it is no longer dangerous. It is then transferred to a dry cask. :))

Answer:

Because we wish that a dragon would just destroy school and you can ride your new dragon to starbucks, you'll be famous!!! BUT THEN REALITY SMACKS YOU IN THE FACE WITH A STUPID STACK OF HOMEWORK!!!

Explanation:

Step 1: Pump up six identical bike tires to the recommended air pressure. Step 2: Place three tires under heat lamps, and keep the other three tires at room temperature. Step 3: After four hours, measure the circumference of each tire. Step 4: Record your results in the tableThe next step in the procedure should be Step 5: Compare and analyze the measurements of the tire circumferences.

In this step, you would compare the measurements taken after four hours for the three tires that were placed under heat lamps and the three tires that were kept at room temperature. By comparing the measurements, you can observe any differences in the tire circumferences and analyze the effects of temperature on tire expansion. This comparison and analysis will provide insights into how temperature affects the air pressure inside the tires. You may observe that the tires exposed to heat have expanded more than the ones at room temperature, resulting in a larger circumference. This can be explained by the gas inside the tires expanding as it is heated, causing an increase in pressure and, consequently, an increase in tire size. By examining and understanding these differences, you can gain knowledge about the relationship between temperature and tire pressure, which is essential for maintaining optimal tire performance and safety.

Learn more about pressure here:

https://brainly.com/question/29341536

#SPJ11