1. What is absolute zero?(1 point)
Zero on any temperature scale.
The coldest achievable temperature for a given substance.
The temperature of outer space.
The point at which particle motion completely stops.

2. If hydrogen could be held at absolute zero, what would its form be?(1 point)
Liquid
Superfluid
Solid
Gas

3. As researchers cool a substance close to absolute zero, what happens?(1 point)
The work needed to cool it further decreases, becoming easier.
The work needed to cool it further falls to zero.
The work needed to cool it further increases.
Work is done on the environment by the substance.

4. Why can’t absolute zero be achieved?(1 point)
Technology isn’t capable of it yet.
Supercold superfluids have no friction.
We can’t describe an absolute value of cold.
It would require infinite work done on the substance.

Answer: Physical weathering is when a rock is broken through the force of another physical substance on the rock like ice, running water, or wind. On the other hand, chemical weathering is when a reaction occurs between the rock and another substance that causes the rock to dissolve (chemical reaction), which changes the identity of the rock.

Explanation:

Physical = breakdown of rocks and minerals

Chemical = chemical breakdown of rocks

If a catcher stops a 92 mph (41. 1 m/s) pitch in his glove and slows it to rest in 0. 15 m with a force of 803 N, the ball's mass is 0.14 kg.

According to Newton's Second Law of Motion, when a force acts on a mass, acceleration (or gaining speed) occurs (object). A good illustration of this law of motion in action is when you are riding a bicycle. The mass is represented by your bicycle. The force is generated by your leg muscles as they push against the bicycle pedals.

a = (Vf²- Vi²)/2.d

The distance is 0.15 meters, the initial velocity is 92 miles per hour, or 41 m/s, and the final velocity is 0 (rest).

a= -5603 m/s²

use the second Newton law,

F= m.a

m= F/a

m= 803N/5603 m/s²

m= 0.14kg.

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The common angular speed is 0.11rad/sec

What is  Angular Speed ?

The rate of change of angular displacement is referred to as angular speed. The speed of an object in rotation is known as its angular speed. In radians, the distance traveled is denoted by the symbol. The amount of time is expressed in seconds. The angular speed is therefore expressed in radians per second, or rad/s.

The orbital angular velocity of any of the three vectors (same for all) with respect to its own center of rotation is the definition of the spin angular velocity of a frame, which is consistent with the broader definition.

d = 279m

t = 1.9 h 6840sec

v = d/t

v = 279/6840

v = 0.04m/s

Also, to find angular speed:

v = rw

w = v/r

r = [tex]\sqrt{x} (r1^2 +r2^2)\\[/tex]/ 2

r = 35.8mm = 0.358m

w = 0.04/0.358

w = 0.11 rad/s

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Identify the parts of the formula described by Newton's second;1. Force (F),2. Mass (M),3. Acceleration (a)

What is the Acceleration ?

Acceleration is the rate of change of an object's velocity. It is the rate at which an object's speed and direction changes over time. Acceleration can be positive or negative, meaning the object can be speeding up or slowing down. Acceleration is measured in m/s2 and is calculated by taking the change in velocity over the change in time. It also contains both magnitude and direction because it is a vector quantity. Forces such as gravity and friction can cause an object to accelerate.

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During your class stretching, you performed:

1.  you performed warm-ups before stretching

2. you stretched the neck and shoulders

3. you held your breath

4. you performed only static stretches

5 some exercises involved moving from one position to another

Warm-ups before stretching: It's a good practice to perform a few minutes of low intensity activities such as jogging in place or riding a stationary bike before stretching. This helps to increase blood flow and body temperature, which can make the muscles more pliable and less likely to be injured during stretching.

Therefore, Stretching the neck and shoulders: The neck and shoulders are common areas of tension and tightness, and stretching these areas can help to release tension and improve range of motion.

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The astronomer whose name is mentioned in the Bohemian Rhapsody, for exact five times, is Galileo Galilei, who is referred as "the father of modern science"

Galileo Galilei was an Italian astronomer, a mathematician and a natural philosopher who made many fundamental contributions in the fields like science of motion, astronomy, and strength of materials and helped in the development of the scientific method. he also made revolutionary telescopic discoveries, including the four moons revolving around Jupiter. Galileo's acceptance of the Copernican heliocentric system was a key turning point in the Scientific Revolution. His improvements to the telescope brought up many advances in the field of astronomy. His formulation of (circular) inertia, the parabolic trajectories and the law of falling bodies marked the beginning of a crucial and a fundamental change in the study of motion. His work has helped in shaping of the revolutionized scientific world that we live in.

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The energy (work) used is 8,850 Joules.

The energy (work) used by the rotary comedy with a power of 285 Watts and a period of 5 minutes that rotates 5 rounds can be calculated by multiplying the power by the time.

The power is 285 Watts and the time is 5 minutes or 300 seconds, so the energy used is 285 Watts x 300 seconds which is equal to 85500 Joules. To the nearest Joule, this is 8,850 Joules. This answer can be verified by using the equation Power = Work / Time. 8,850 Joules divided by 300 seconds is equal to 285 Watts which is the power of the rotary comedy.

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The vector sum of the individual forces represents the electron's net force. The direction of the force is along the line connecting the two charges.

The two charges' position and intensity where the electron is located Charge on an electron (assuming it is a negative charge) Once this information is understood, Coulomb's Law may be used to determine how much of an electric force each charge is exerting on the electron.

The force between two charges is inversely proportional to the square of the distance between them, according to Coulomb's Law, and proportionate to the product of the charges.

The vector sum of the individual forces represents the electron's net force. The direction of the force is along the line connecting the two charges.

The net force on the electron is the vector sum of the individual forces

The net force on the electron is the vector sum of the individual forces.

The location and magnitude of the two charges

The location of the electron

The charge of the electron (assuming it is a negative charge)

It's important to note that this calculation would need to be done for each charge individually and then adding the forces vectorially to find the net force.

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The graph of the linear equation with the slope of zero is a flat horizontal line.

A slope of zero refers to the scenario where the value of y is constant, no matter what the value of x is. In the graphical representation, the slope of zero results in a flat line in the horizontal direction. , which is the rise over run is zero.

Therefore, it is concluded that a graph of a linear equation having a slope of zero makes a perfectly flat line in the horizontal direction. No matter what the value of x is, y always has the same, neither it increases nor it decreases.

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Answer: 3.4 x 10^-4

Explanation: the number of decimal places you move will be the exponent on the 10 . if the decimal is being moved to the right, the exponent will be negative . if the decimal is being moved to the left, the exponent will be positive

=

3.4 x [tex]10^{-4}[/tex]

The kinetic energy of the object will be 225 Joule. This is the value of half mass of object multiplied by the square of the velocity.

Kinetic energy is the energy of an object due to its motion. The energy is equal to half mass of an object multiplied by the square of its velocity.

The statement can be expressed as

KE = ½ mv²

Where

We have an object with

Find the kinetic energy of the object!

The kinetic energy of the object will be

KE = ½ mv²

KE = ½ (2) (15)²

KE = 1 (225)

KE = 225 Joule

Hence, the object will moves with the kinetic energy of 225 Joule.

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A doubling in height will lead to a doubling in gravitational potential energy since an object's gravitational potential energy is exactly proportionate to its height above the zero point.

Potential energy is a form of stored energy that is dependent on the relationship between different system components. When a spring is squeezed or extended, its potential energy increases. a boulder perched precariously atop a cliff. The rock will be moving if it falls, converting the potential energy to kinetic energy. a longbow's stretched-elastic string. Any item that is raised from rest has energy that may be released at a later time; for this reason, it is referred to as potential energy. Potential energy is the energy that is stored in any item or system as a result of its location or component arrangement.

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The magnitude of the force exerted by the ball on the bat is also 60 n. This is due to the principle of action and reaction, also known as Newton's Third Law of Motion. It states that for every action, there is an equal and opposite reaction.

In this case, the action is the force exerted by the bat on the ball, and the reaction is the force exerted by the ball on the bat. Therefore, the two forces are equal in magnitude but opposite in direction. This means that if the bat exerts 60 n of force on the ball, the ball exerts 60 n of force back on the bat.

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Answer:Since the car is moving at a constant speed of 20 meters per second, its acceleration is zero.

Explanation:

B The acceleration of a projectile is downward. E Projectiles are objects that experience free fall.

The acceleration of a projectile is not constant; in fact, it is constantly changing due to the force of gravity. The acceleration of a projectile is downward, due to the force of gravity acting upon it. Projectiles are objects that experience free fall, meaning they experience an acceleration due to gravity as they move through the air and do not remain at a constant velocity.

Therefore, statements B and E are true, while statements A, C, and D are false.

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The equilibrium position of the spheres depends on their conductivity; if both spheres are conductive, they will come to rest in contact, if one sphere is conductive and the other is insulating, they will come to rest separated by some distance.

Perfectly conductive spheres: Since both spheres are conductive, they will both be at the same electrical potential. Therefore, there will be no electrostatic force between them and they will come to rest in contact with each other.

One perfectly conductive sphere and one perfectly insulating sphere: The conductive sphere will distribute its charge evenly over its surface, whereas the insulating sphere will retain its charge on its surface.

This will create an electrostatic force between the two spheres, which will cause them to repel each other and come to rest separated by some distance.

Both perfectly insulating spheres: Both spheres will retain their charge on their surfaces, creating an electrostatic force between them.

The sphere with the greater charge will exert a stronger force on the other sphere and they will come to rest separated by some distance, with the sphere of greater charge closer to the common attachment point.

In conclusion, the equilibrium position of the spheres depends on their conductivity. If both spheres are conductive, they will come to rest in contact.

If one sphere is conductive and the other is insulating, it will come to rest separated by some distance due to the repulsion force. If both spheres are insulating, the sphere with greater charge will exert a stronger force and come to rest closer to the common attachment point.

Due to the repulsion force and if both spheres are insulating, the sphere with greater charge will exert a stronger force and come to rest closer to the common attachment point.

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1.33 x 10-18 J  is the energy, in joules, of a photon of wavelength 150 nm .

E = h x c / λ

E = 6.6261 × 10⁻³⁴ * 3 × 108 / 150

  = 1.33 x 10-18 J

Every photon has a wavelength and a frequency. The wavelength is the separation between two electric field peaks that share the same vector. A photon's frequency is the number of wavelengths it passes through each second. As opposed to an electromagnetic wave, a photon cannot actually have a color.

Because energy is exactly proportional to the electromagnetic frequency of the photon, it is known that energy and wavelength have an inverse relationship. A photon's energy rises as its frequency does. In other words, as the wavelength increases, a photon loses energy.

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An acceleration of zero means that the velocity of an object is not changing. It means that the object is either at rest or moving at a constant velocity.

Acceleration is a measure of how quickly an object's velocity is changing. It is a vector quantity and it has both magnitude and direction. The formula for acceleration is:

a = (vf - vi) / t

Where a is acceleration, vf is final velocity, vi is initial velocity and t is the time. If the acceleration of an object is zero, it means that the final velocity is equal to the initial velocity, and the object is not changing its speed. This can happen when an object is in a state of equilibrium, meaning that the net force acting on the object is zero. An object in equilibrium is at rest or moving at a constant velocity and it is not accelerating. In summary, an acceleration of zero means that the velocity of an object is not changing. The object is either at rest or moving at a constant velocity and it is in a state of equilibrium.

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The skydiver is falling at a velocity of 212 kilometres per hour. The speed of the skydiver is 212 miles per hour.

If a skydiver leaps out of a plane and lands at 212 mph, it is necessary to know the skydiver's velocity and speed. Velocity is speed with a direction, whereas speed just exists as a number with a speed unit at the end. While velocity refers to both the speed and direction of an object's motion, speed is the rate at which an object moves along a path over time. The skydiver is falling at a speed of 212 kilometres per hour. 212 kilometres per hour is the speed at which the skydiver is travelling. Speed is the rate at which an object travels along a path over time, as opposed to velocity, which describes the speed and direction of an object's motion. A scalar quantity is speed.

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If you flip a fair coin a total of ten times, how often will you likely get heads.

You anticipate getting 0 heads roughly 0.1% of the time, 1 head roughly 1% of the time, 2 heads roughly 4% of the time, 3 heads approximately 12% of the time, 4 heads ultimately just 25% of the time. It works the exact opposite for heads six through ten.

Likelihood curve with successively steeper bell curves stacked on one another As the number of tosses rises, the probability of receiving heads tends to cluster closer to 50%.

Peter Hermes Furian/Shutterstock provided the photo. It demonstrates that you can pretty much predict any outcome after flipping a fair coin ten times.

Therefore, If you flip a fair coin a total of ten times, how often will you likely get heads.

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When the angel is 90 degrees then a force should be applied on a lever to produce the most torque.

In order to use the methods set forth in this section, the relationship between flux linkage, current, and mechanical position must be known. It will be assumed herein that this relationship can be expressed in one of two forms.

In the first form, the flux linkage may be expressed where i , λ and x represent current, flux linkage, and position, respectively.Energy that is stored in the magnetic field has two possible sources – the electrical system or the mechanical system. The energy entering the stored field from the electrical system.

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The acceleration at the top is zero, in case of projectile trajectory path and in case of free fall acceleration is acceleration due to gravity i.e. g i.e. 10 m/s2 or standard 9.8 m/s2

The acceleration at the top of a trajectory or motion depends on the specific context and the forces acting on the object. In the case of a projectile, such as a ball thrown upwards or a rocket launched into space, the acceleration at the top of the trajectory is zero, as the velocity of the object is momentarily zero as it changes direction from upward to downward motion, and the net force acting on the object is also zero. In the case of an object in freefall, such as a skydiver or an object dropped from a height, the acceleration at the top of the motion is the acceleration due to gravity (g), which is approximately 9.8 m/s^2 or 1 g. This is because the only force acting on the object is the force of gravity pulling it downward. In other cases, such as an object moving along a curved path, the acceleration at the top of the motion can be quite different, it depends on the specific forces acting on the object and the shape of the trajectory. For example, if an object is moving along a circular path, it will experience an acceleration that is pointing towards the center of the circle, known as centripetal acceleration. It's important to note that acceleration is the rate of change of velocity, and at the top of a trajectory or motion, the velocity of the object is momentarily zero, and therefore the acceleration is also zero. In summary, the acceleration at the top of a trajectory or motion depends on the specific context and the forces acting on the object, it can be zero, it can be the acceleration due to gravity or it can be a different acceleration depending on the trajectory or motion of the object.

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The product of the magnitudes of the charges and the square of the distance between them determines the magnitude of the electrostatic force F between two point charges, q1 and q2, and vice versa.

The magnetic field B and the charge q's velocity v are both perpendicular to the force. F = qvB sin, where is the angle of 180 degrees between the velocity and magnetic field, gives the force's magnitude.

The product of the magnitudes of the charges and the square of the distance between them determines the magnitude of the electrostatic force F between two point charges, q1 and q2, and vice versa.

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Answer:

Less than

Explanation.

Because there is an. in crease in the resistance.

a) The velocity at the peak is zero m/s

b) The direction of the acceleration of the motion is negative.

We should know that the acceleration would have to do with the change in the speed of a body and in the case of the question that we have here we are told that the object has been thrown straight up.

At the maximum height, the object would cease to move and as such the velocity of the object at at the peak of the motion would be seen to be zero. The acceleration in this case would be negative.

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Electromagnetic and Computational Sciences (EECS) scholars study electromagnetic phenomena like radiation, propagation, and scattering as defined by Maxwell's theory.

They create mathematical tools for analyzing and assessing electromagnetic solutions to real-world devices, systems, and issues in electrical engineering. Electrical engineering giants Maxwell, Faraday, Hertz, Marconi, and Tesla founded applied electromagnetics.

It now includes micro-electromechanical systems, metamaterials, nanomagnetic, biological uses of electromagnetic fields, information technologies, and other innovative devices and structures.

Telecommunications, military, microwave instruments, medical equipment, and others need students with these talents. Wireless communications and related technologies are driving significant growth in these businesses.

Statics, radio, THz, infrared, and optical frequencies are of interest. Electrically small antennas, millimeter-wave phased arrays, multi-input/multi-output (MIMO) antenna systems, micro-electromechanical systems, artificial impedance surfaces and scattering control, photonic topological insulators, nonlinear and active electromagnetic structures, plasma and vacuum devices, field and photoemission, biological effects of electromagnetic fields, electromagnetic interference shielding, and more are researched.

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Rate the effectiveness of four different shears on a scale of 1 to 10 for each category. Reber thinks that the shear should be bought.

Flexibility is the term used to describe a joint's or a collection of joints and muscles' ability to move through a range of motion efficiently painlessly.

Flexibility is the capacity to swiftly and collectedly adapt to brief change, enabling you to successfully handle unforeseen issues or duties. Here are some instances of what you could do: Offer to help another team member if you see them to be overworked.

Flexibility in the workplace refers to the capacity to quickly adjust to novel situations as they emerge. A flexible worker can alter their plans to deal with or get around unexpected challenges.

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The direction of the electric fields will be outwards or away from the the carbon nucle.

 Define initial magnitude of the acceleration ?

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