a car on a circular track accelerates from rest. the radius of the track is 0.30km and the magnitude of the constant angular acceleration is 4.5x10-3 rads/s squared. find the centripetal acceleration of the car when it has completed half of a lap. ​

It takes our Solar system 230 million years to complete one orbit around the milky way galaxy; option E.

The solar system refers to the system of the Sun and the planets that orbit it.

The Sun is the star of our solar system. The planets in our system include:

Our solar system is a part of the Milky Way Galaxy.

It takes about 230 million years for our Solar system to complete one orbit around the Milky Way Galaxy.

Learn more about the Solar system and Milky Way Galaxy at: https://brainly.com/question/26146239

#SPJ1

Answer:

Si tienen diferencia

Explanation: Internas: Proviene de la herencia; el legado genético que las personas reciben de sus padres.

Externa: Provienen de las experiencias personales frente

al mundo exterior

When describing an experience on a fast roller coaster, it is essential to focus on the different aspects of the ride that makes it thrilling, exciting, and memorable.

1. Start by explaining the roller coaster's design, emphasizing its height and speed.2. Describe the sensation of climbing the first hill and looking down from the top.3. Talk about the initial drop and the feeling of falling and weightlessness.4. Focus on the different elements that make the ride thrilling, such as loops, corkscrews, and twists.5. Highlight the acceleration and deceleration forces that create excitement.6. Mention the wind rushing through the rider's hair and the screams of excitement from fellow riders.7. Emphasize the adrenaline rush and the overall feeling of excitement and thrill that the ride provides.

Long Answer:When I was in Orlando, I went to Universal Studios to visit the park's attractions. The roller coaster named "The Incredible Hulk Coaster" caught my attention. This ride was one of the most amazing and thrilling experiences I have ever had. The roller coaster is a bright green color, and its height and speed can be seen from far away. As I approached the coaster, my heart began to race. The coaster's height was impressive, and I couldn't wait to get on the ride. I finally got on the coaster, and the safety bar locked me in. I was nervous but excited.The coaster began to climb the first hill, which seemed to be the highest hill I had ever seen. At the top, the view was incredible; I could see the whole park. Then came the big drop. The coaster plunged down, and I felt a sensation of falling. It was like I was weightless for a moment. It was a thrilling and unforgettable feeling. Then came the loops and corkscrews, which were dizzying but so much fun. The coaster's acceleration and deceleration forces made the ride more exciting and added to the overall experience. The wind was rushing through my hair, and I could hear the screams of excitement from other riders. The ride lasted for a few minutes, but it felt like it was over in seconds. The feeling of excitement and thrill stayed with me for the rest of the day. It was an incredible experience that I will never forget.

To know more about acceleration visit :-

https://brainly.com/question/2303856

#SPJ11

Answer:

Blade Heel.

Explanation:

Brainliest please!!!

A device called a hygrometer is used to measure relative humidity.

Hygrometers come in various types, but the most common ones are the psychrometer and the electronic hygrometer. They measure relative humidity.

A psychrometer consists of two thermometers, one dry and the other wet, that are attached to a handle. The wet thermometer has a cotton wick wrapped around its bulb, which is soaked in distilled water. The dry thermometer measures the ambient air temperature, while the wet thermometer measures the air temperature as affected by the evaporation of the water from the wick. The difference between two readings calculates relative humidity.

Electronic hygrometers use a sensor to measure the dew point temperature, which is the temperature at which the air becomes saturated and condensation occurs. The sensor then calculates the relative humidity based on the difference between the dew point temperature and the ambient air temperature.

Learn more about humidity here:

https://brainly.com/question/22069910

#SPJ4

Answer:

One explanation may be that as a group, teenagers react more impulsively to threatening situations than do children or adults, likely because their brains have to work harder to rein in their behavior, a research team reported here yesterday at the Society for Neuroscience meeting

The direction of the acceleration vector is towards the top right of the page, at a 90-degree angle to the velocity vector. The correct answer is (d) "the velocity is towards the right of the page and the acceleration is towards the top right of the page".

At the highest point of the circular path, the direction of the velocity vector is tangential to the circle and points to the right of the page, which is the direction of motion. The acceleration vector points towards the center of the circle, which is the direction of centripetal acceleration.

Since the car is moving at a constant speed, there is no component of acceleration in the tangential direction. The magnitude of the centripetal acceleration is given by the formula a = v^2/r, where v is the velocity and r is the radius of the circle.

Therefore, the direction of the acceleration vector is towards the top right of the page, at a 90-degree angle to the velocity vector.

To learn more about Vectors here:

brainly.com/question/29740341#

#SPJ11

The input power required for a mass flow rate of 60 kg/min is calculated to be 871.35 kW.

Given that,

Initial temperature T₁ = 295 K

Final temperature T₂ = 460 K

Initial pressure P₁ = 105 k pa

Final pressure P₂ = 700 k pa

The specific heat loss from the compressor Q = 15 kJ/kg

The mass flow rate m = 60 kg/min

Refer to the properties of element to determine the specific heat of helium.

Cp = 5.19 kJ/kg.K

Apply the energy balance equation for calculating the input power.

W - m Q = m h₁ - m h₂

W - m Q = m (h₁ - h₂)

W - m Q = m Cp (T₁ - T₂)

where,

W is the input power

h₁ and h₂ are the initial and final enthalpy

Placing the values in the above expression, we have,

W - 60 kg/min (1 min/60 sec) × (-15 kJ/kg) = 60 kg/min (1 min/60 sec) × 5.19 kJ/kg.K (295 K - 460 K)

W = -871.35 kJ.s (1kW/1kJ) = -871.35 kW

Thus, the input power = 871.35 kW.

To know more about power:

https://brainly.com/question/13103963

#SPJ4

The meter per seconds per second (m/s²) is the SI unit of measurement used to describe an acceleration unit.

A rate at which position and velocity of velocity change over time is referred to as acceleration. When anything starts moving faster or slower, it's referred to as accelerating. The rate at which an object's velocity with regard to time changes is referred to as acceleration in mechanics. They are vector quantities, accelerations. The direction of a net force on the object determines the direction of its acceleration.

Acceleration refers to the rate at which velocity changes over a predetermined amount of time. By divide a change in velocity even by change in time, acceleration is calculated. The acceleration of the object is equal to the net force exerted on it divided only by mass, or a = F m, in accordance with Newton's second rule of motion. When the mass of an item as well as the net force acting on are known, the acceleration of that object can be determined using this equation for acceleration.

To know more about Acceleration visit:

https://brainly.com/question/28743430

#SPJ1

From of the following pairs, the form of radiation with the lower energy are

a.)microwaves or radio waves.

h.)AM radio waves or FM radio waves.

electromagnetic spectrum :

The electromagnetic spectrum is a collection of wavelengths, photon energies, and frequencies that extends frequencies.

gamma rays > X-rays > ultraviolet radiation >  visible light > infrared radiation > radio waves.

wavelength ∝ 1 / frequency

E = hf

where

E = energy

f = frequency

h = Planck’s constant

From of the following pairs, the form of radiation with lower energy are

a.)microwaves or radio waves.

h.)AM radio waves or FM radio waves.

To know more about electromagnetic radiation :

https://brainly.com/question/13373018

#SPJ1

Since astronomers have concluded that the Sun's activity varies in an 11-year cycle, the statement about this cycle which is true is that: C. The number of sunspots gets larger and smaller over the course of 11 years.

In Science, the Sun can be defined as an astronomical (celestial) body that is typically found within the solar system around which planetary (astronomical) bodies orbit, and whose light shines on planet Earth to differentiate day and night.

Based on astronomical records and information, we can reasonably infer and logically deduce that all of the activities which are associated with the Sun generally varies in an 11-year cycle, and this makes the number of sunspots to both get smaller and larger within a period of eleven (11) years.

Read more on the Sun here: brainly.com/question/3953729

#SPJ1

Answer:

Boiling a kettle is an example of both thermal and kinetic energy. Thermal energy comes from a substance whose molecules and atoms are vibrating faster due to a rise in temperature. Heat energy is another name for thermal energy. Kinetic energy is the energy of a moving object.

it's kinetic!

“The electric flux through a closed surface is equal to the net charge inside the surface divided by the physical constant. This law is a fundamental principle in electrostatics and is expressed mathematically as E.ds = Q/ε0.

Gauss’s Law for electric fields is a fundamental principle in physics, specifically in the study of electrostatics. The law describes the relationship between the electric flux and the distribution of electric charges in a given space. Simply put, it states that the electric flux through a closed surface is proportional to the total amount of electric charges inside the surface. In mathematical terms, the statement of Gauss’s Law for electric fields is as follows: E.ds = Q/ε0Here, E.ds represents the electric flux through a closed surface, Q represents the total electric charge enclosed within the surface, and ε0 is the physical constant known as the permittivity of free space. This equation can be used to calculate the electric field created by a given charge distribution, provided that the electric flux through a closed surface around the distribution is known.

Gauss’s Law for electric fields states that the electric flux through a closed surface is proportional to the net electric charge enclosed within the surface. This law is a fundamental principle in electrostatics and is expressed mathematically as E.ds = Q/ε0.

To know more about Gauss’s Law visit:

brainly.com/question/14767569

#SPJ11

my brain.

Explanation:

...................

Answer:The Nokia XR20. ... HMD Global said the Nokia XR20 is the most durable phone it's created to date. The XR20 sports a tough 6.67-inch Gorilla Glass Victus display from American tech firm Corning and can resist damage from scratches and drops from about 6 feet, the company says.Jul 26, 2021

Explanation:

Answer:

bigger instruments make lower pitches

Explanation:

bass drums and other large instruments have low sounds because they're so big. the smaller the instrument is, the higher pitch it's going to have

Answer:

It is mostly the Bass instruments because they use mouthpieces while the wind instrument use reeds and make a higher pitched sounds

Explanation:

Band

Answer:

Which best describes what happens if two waves meet and build on each other?

destructive interference

reflection

absorption

Explanation:

When two waves meet in phase they will overlap together and form a constructive interference. The resultant amplitude of the waves will be greater than that of individual waves.

A wave of greater, lower, or the same amplitude is created when two waves merge through interference by combining their displacements at all points in space and time.

The interaction of waves that are coherent or correlated with one another, either because they originate from the same source or because their frequencies are similar or almost identical, leads to both constructive and destructive interference.

All sorts of waves, including light, radio, acoustic, surface water waves, gravity waves, and matter waves, can exhibit interference effects. In constructive interference, the waves are in single phase forms a resultant wave with higher amplitude.

When waves from out of phase meets, the resultant wave will have an amplitude less than the individual amplitudes. Here, the waves are meet in phase and build on each is constructive interference.

Find more on interferences :

brainly.com/question/16098226

#SPJ6

Match the volcano type with its correct

1. Cinder Cone:

Plate Tectonic Setting: Mostly Spreading Ridges, some Mantle Plumes

2. Composite/Stratovolcano:

Plate Tectonic Setting: Subduction Zones (Convergent Margins)

3. Shield Volcano:

Plate Tectonic Setting: Mostly Mantle Plumes, some Spreading Ridges

4. Large Igneous Provinces (LIPs):

Plate Tectonic Setting: Various tectonic settings

Volcano types can be associated with specific plate tectonic settings and magma compositions. Let's match the volcano types with their correct plate tectonic settings and magma compositions:

1. Cinder Cone:

Plate Tectonic Setting: Mostly Spreading Ridges, some Mantle Plumes

Magma Composition: Mafic

Cinder cones are typically small, steep-sided volcanoes that form from the eruption of basaltic magma. They are commonly found in volcanic regions associated with spreading ridges, where tectonic plates are moving apart, or in areas influenced by mantle plumes, such as hotspot volcanism.

2. Composite/Stratovolcano:

Plate Tectonic Setting: Subduction Zones (Convergent Margins)

Magma Composition: Intermediate, varies from felsic to mafic

Composite or stratovolcanoes are characterized by their steep slopes and alternating layers of lava flows and pyroclastic materials. They are commonly found in subduction zones, where an oceanic plate is being subducted beneath  continental plate. The magma composition of these volcanoes varies, ranging from felsic (high silica content) to mafic (lower silica content).

3. Shield Volcano:

Plate Tectonic Setting: Mostly Mantle Plumes, some Spreading Ridges

Magma Composition: Mafic

Shield volcanoes are large, broad, and gently sloping volcanoes that form from the eruption of basaltic magma. They are often associated with mantle plumes, such as those found in hotspot regions, as well as in volcanic areas influenced by spreading ridges.

4. Large Igneous Provinces (LIPs):

Plate Tectonic Setting: Various tectonic settings

Magma Composition: Mafic

Large Igneous Provinces (LIPs) are extensive regions of volcanic and intrusive rock formations that are associated with massive outpourings of mafic magma. They can occur in various tectonic settings, including continental rifts, hotspot regions, and flood basalt provinces.

5. Seafloor Volcanism, Pillow Lava:

Plate Tectonic Setting: Mostly Spreading Ridges

Magma Composition: Mafic

Seafloor volcanism is primarily associated with spreading ridges, where magma wells up and creates new oceanic crust. The lava erupted underwater cools rapidly, forming pillow-shaped structures known as pillow lavas. The magma composition is typically mafic, dominated by basaltic lavas.

These associations between volcano types, plate tectonic settings, and magma compositions provide insights into the geological processes and Earth's dynamics that shape the Earth's surface.

Learn more about magma composition here:

https://brainly.com/question/862669

#SPJ11

The rate of change of the boulder's momentum is equal to the rate of change of the pebble's momentum. Option C is correct.

This is because the rate of change of an object's momentum is directly proportional to the net force acting on the object, and inversely proportional to the mass of the object. In this case, the net force acting on both the boulder and the pebble is the same, at 200 N. However, the mass of the boulder is much larger than the mass of the pebble.

Since the rate of change of momentum is inversely proportional to the mass of the object, the boulder will experience a smaller rate of change in momentum than the pebble. However, this will be exactly offset by the fact that the boulder has a larger mass, which will cause its momentum to change at the same rate as the pebble.

Therefore, the rate of change of the boulder's momentum is equal to the rate of change of the pebble's momentum, despite the large difference in their masses. The principle behind the rate of change of momentum is that the amount of momentum an object has is directly proportional to its mass and velocity. When a net force acts on an object, it causes the object's velocity to change, which in turn causes a change in the object's momentum.

The rate of change of an object's momentum is determined by the net force acting on the object, as well as its mass. Specifically, the rate of change of momentum is equal to the net force acting on the object divided by its mass. This principle is known as Newton's second law of motion.

In the case of the boulder and the pebble in the original question, both objects are subject to the same net force of 200 N. However, the boulder has a mass of 100 kg, while the pebble has a mass of 0.13 kg. Since the rate of change of momentum is inversely proportional to the mass of the object, the pebble will experience a much larger rate of change in momentum than the boulder. Option C is correct.

To know more about the Momentum, here

https://brainly.com/question/30890791

#SPJ4

In the context of physics, work is defined to be the movement of an object when you apply a (pushing or pulling) force.

If you lifted a box to move it upward, then you are doing work. If you slide that box along the floor, then you are also doing work. However, if you try to lift something very heavy, but cannot move it at all, then 0 work is being applied. This is because the object hasn't moved. You need displacement to have work happen.

So that's why a physicist would not consider studying doing "work" (in the context of physics), though I'm sure they would be able to agree that studying does exercise the mind.

When enciphering a message, Plain Text is changed into Code Text. So, the correct answer is D.

Enciphering is a method of encoding a message, that is, scrambling a message in a way that only the intended recipient can decode and read it. A message written in plain text is changed into a ciphertext to prevent unauthorized access or interception. Encryption and decryption are two opposite processes in cryptography.

Cryptography is the study of securing sensitive information, communications, and systems to prevent unauthorized access, data theft, and other malicious acts. The technique is used to secure data transmission, storage, and communications. Encryption, decryption, and steganography are some of the popular techniques of cryptography.

Plain text is a message or data that is not encrypted, encoded, or disguised. It is readable and understandable text, which is simple and easy to understand by anyone.

In cryptography, plain text is the original message that needs to be encrypted. This message can be read or understood by anyone who can intercept or access it.

Learn more about Plain Text at

https://brainly.com/question/27920008

#SPJ11

The strength of the magnet pole (option D) will not be affected by the induced electromotive force (e.m.f) when a magnet is in motion relative to a coil.

When a magnet is in motion relative to a coil, it induces an electromotive force (e.m.f) in the coil due to the changing magnetic field. This induced e.m.f. can cause various effects, but it does not directly affect the strength of the magnet pole (option D). Option A, the motion of the magnet, is directly related to the induction of the e.m.f. When the magnet moves, the magnetic field through the coil changes, inducing the e.m.f.

Option B, the resistance of the coil, affects the amount of current flowing through the coil when the e.m.f is induced. Higher resistance can limit the current flow. Option C, the number of turns of the coil, affects the magnitude of the induced e.m.f. More turns increase the induced voltage.

However, the strength of the magnet pole (option D) itself is independent of the induced e.m.f. It is determined by the properties of the magnet, such as its magnetization and magnetic material. The induced e.m.f does not alter the intrinsic strength of the magnet pole.

Learn more about  electromotive force here:

https://brainly.com/question/13753346

#SPJ11

Intensity changes as a result in resultant wave.

When two waves are in phase and their maxima add, a process known as constructive interference occurs where the combined amplitude of the two waves equals the sum of their individual amplitudes. The minima of the waves would line up similarly.

A wave of amplitude 2A is produced when two waves with the same phase, frequency, and amplitude (A) superimpose. As a result, its intensity doubles. The maximum angle at which fringes can be seen on a screen is 90°.

Condition for constructive interference: ΔL = nλ, where n is any integer. The quantity I represents the wave's intensity as a function of the two (identical) parent waves' phase differences.

To know more about constructive interference refer to the given link:

https://brainly.com/question/12077579?referrer=searchResults

#SPJ4

Answer:

I believe it d I'm not completely sure but yeah

Answer:

 its not long dummy, its your imagination

Explanation:

The total momentum for the collision is conserved. Hence the final velocity of the  cart will be 15 m/s.

Momentum of a moving body is ist product of mass and velocity. It is a vector quantity and having both magnitude and direction.

The total momentum in a collision is conserved. Thus, the sum of initial momentum of the two bodies will be equal to the final momentum of the combined mass.

Hence, M 1 V1 + M2 V2 = (M1 + M2) V

Where V is the final velocity.

Given that the mass the cart = 3.4 kg

velocity = 23.9 m/s

mass of the block  = 2 kg

initial velocity = 0 m/s.

(3.4 kg × 23.9 m/s ) +  (0) = (3.4 + 2 Kg) V

V =(3.4 kg × 23.9 m/s )/(3.4 + 2 Kg)

  = 15 m/s

Therefore, the velocity of their centre of mass is 15 m/s.

To find more on momentum, refer here:

http://brainly.com/question/29113044

#SPJ1

B) The evidence that a chemical reaction has likely occurred is the formation of a precipitate.

A precipitate is a solid that forms from a chemical  response in a liquid  result. This is a clear  suggestion that a chemical  response has taken place because the reactants have  experienced a chemical change to form a new product that's  undoable in the original detergent.   Option A( a liquid  sluggishly losing volume) may be an  suggestion of evaporation or  immersion, but it doesn't  inescapably indicate a chemical  response.

Option C( boiling water releasing) is a physical change caused by a change in temperature, not a chemical  response. Option D( a change in the shape of a solid) could be a sign of a physical change,  similar as melting or breaking, but it isn't a clear  suggestion of a chemical  response.   thus, the  conformation of a precipitate( option B) is the most  dependable  substantiation that a chemical  response has likely  passed.

Learn more about chemical reaction at

https://brainly.com/question/20300888

#SPJ1

Suppose an alternating series with terms that are non increasing in magnitude converges to a value L Explain how to estimate the remainder that occurs when the series is terminated after n terms . Find the magnitude of the first neglected term and conclude that |R| 50.So option B is correct.

To estimate the remainder that occurs when an alternating series is terminated after n terms, you need to find the magnitude of the first neglected term, which is the term following the nth term.

In an alternating series with terms that are non increasing in magnitude, the remainder (R) is the difference between the exact sum of the series (L) and the sum of the first n terms (Sn).

To estimate the remainder, you want to find an upper bound for |R|, which means you want to find a value that is greater than or equal to |R|.

By observing that the terms are non increasing in magnitude, you can conclude that the first neglected term, |an+1|, is an upper bound for |R|. This is because all subsequent terms in the series will be smaller or equal in magnitude to |an+1|.

Therefore, to estimate the remainder, you choose option B. Find the magnitude of the first neglected term and conclude that |R| < |an+1|.

To learn more about alternating series  visit: https://brainly.com/question/30400869

#SPJ11