24) a closed loop conductor that forms a circle with a radius of is located in a uniform but changing magnetic field. if the maximum emf induced in the loop is what is the maximum rate at which the magnetic field strength is changing if the magnetic field is oriented perpendicular to the plane in which the loop lies? a) 0.40 t/s b) 2.5 t/s c) 0.080 t/s d) 5.0 t/s

Answer:

solid

Explanation:

In a solid, particles are packed tightly together so they don't move much. The electrons of each atom are constantly in motion, so the atoms have a small vibration, but they are fixed in their position. Because of this, particles in a solid have very low kinetic energy.

The work is given by:

Plugging the values given we have:

Therefore the man do 120 ft*lb of work

When thermal energy is removed from particles, then the particles' kinetic energy decreases (Option D).

The expression particles' kinetic energy makes reference to the amount of motion energy (i.e. energy in movement) that contain the particles of an object, which depends on the temperature of the material.

In conclusion, when thermal energy is removed from particles, then the particles' kinetic energy decreases (Option D).

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The experiments to demonstrate the conservation of momentum with the two billiard balls of known masses, m₁ and m₂, and velocities u₁ and u₂. The balls are then made to collide with velocities v₁ and v₂ after the collision

The momentum before and after the collision is then calculated as follows:

The momentum of a body is the product of the mass and the velocity of the object.

Mathematically;

the momentum of a body is determined as follows:

Momentum = mass * velocity

Momentum is conserved if the momentum before and after the collision is equal.

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The greatest stress that a material can withstand before failing is referred to as its strength. Its stiffness describes how much it will flex or bend when pulled. High strength is frequently found in materials with high stiffness. The greatest stress that a material can withstand before failing is referred to as its strength.

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Answer:

Gas exchange takes place in the millions of alveoli in the lungs and the capillaries that envelop them. Inhaled oxygen moves from the alveoli to the blood in the capillaries, and carbon dioxide moves from the blood in the capillaries to the air in the alveoli.

Explanation:

Hope this helps      :)

the mass of the NaCl sample is 30 grams

The angular acceleration of the object after it is released from rest can be calculated using the formula α = (g*(r1-r2))/r1r2, where g is the acceleration due to gravity. Neglecting any frictional effects, this formula takes into account the difference in radii between the object's initial and final positions.

When the object is released from rest, it begins to fall due to the force of gravity. As it falls, its potential energy is converted into kinetic energy, causing it to gain speed. Since the object is constrained to move along a circular path, this increase in speed corresponds to an increase in angular velocity. The angular acceleration is the rate at which the angular velocity is changing, and is given by the formula α = Δω/Δt.

In this problem, we can use the fact that the object is not sliding or slipping along the surface to assume that the net torque acting on it is zero. This means that the angular acceleration is solely determined by the radial forces acting on the object. The difference in radii between the object's initial and final positions gives rise to a net radial force, which is responsible for the object's angular acceleration. Using the formula α = (g*(r1-r2))/r1r2 takes into account this net radial force and yields the angular acceleration of the object.

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Answer: the answers would be both of the ones in the middle

Explanation:

the one where it says plant more trees

and the other one that says paint ore cover black asphalt streets

When an object protected by a lightning rod is struck by a lightning bolt, it will bleed the lightning discharge to the ground before the protected object can be harmed.

To protect a building or an object from a direct hit of lightning, light rods are designed which conducts the electric discharge to the ground. lightning rods protect the object from damage, particularly from fires caused by lightning.

So to protect an object from lightning, lightning rods are used.

Therefore, when an object protected by a lightning rod is struck by a lightning bolt, it will bleed the lightning discharge to the ground before the protected object can be harmed.

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Answer: consumers' desire for more comfortable seatbelts led engineers to improve seat belts.

Explanation:

Answer:

i) 196J ii) 78.3J iii) 14m/s

Explanation:

i) Formula for gravitational potential energy is

Eg = mgh

Eg = (2)(9.8)(10)

Eg = 196J

ii) Formula for kinetic energy is

Ek = (mv^2)/2

We need to find the velocity first by using one of the key equations of accelerated motion

v^2 = vi^2+2aΔd

v = √vi+2aΔd

v = √2(9.8)(4)

v = 8.85 m/s

Ek = ((2)(8.85^2))/2

Ek = 78.3J

iii)

v = √vi+2aΔd

v = √2aΔd

v = √2(9.8)(10)

v = 14 m/s

The particle temperature and the valency of the atom in the particles are the two parameters that decrease with the kinetic energy of the particles in an item.

Temperature directs to the hotness or coldness of a body. In clear terms, it is the method of finding the kinetic energy of particles within an entity. Faster the motion of particles more the temperature.

Because an item possesses kinetic energy when it is moving, anything that prevents that motion will reduce the kinetic energy of the object.

A valence electron is an electron in the outermost shell associated with an atom that can experience the innovation of a chemical bond if the outer shell is not closed. Both atoms contribute one valence electron to create a shared pair.

More the valence electron more the motion of atoms results in more kinetic energy,

Hence the two factors decrease as the kinetic energy of the particles in an object will be the particle temperature and the valency of the atom in the particles.

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Answer:

In what forms is the electrical energy that is supplied to a string of decorative lights dissipated? It is converted to thermal energy and light energy.

Answer:

Energy loss. When energy is transformed from one form to another, or moved from one place to another, or from one system to another there is some energy loss. This means that when energy is converted to a different form, some of the input energy is turned into a highly disordered form of energy, like heat.

Energy losses in lights are very large; most of the input energy is lost in the form of heat energy.

Explanation:

The gauge pressure in the water at the foot of the dam is 1.09 * 10^6 Pa.

The pressure of a fluid of density ρ, at a depth h is:

                                          p =  ρ.g.h

Where g is the acceleration due to gravity.

h is height =  111 m,

the fluid is water so its density is ρ = 1000 kg/m³ and

we can use for the gravity g = 9.8 m/s².

The pressure at the foot of the dam is: p = 1000 * 111 * 9.8 = 1.09* 10^6 Pa

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это действие является рективным, формула которой такова: m1×v1 = – m2×v2

m1 - масса игрока

m2 - масса шайбы

v1 - скорость игрока

v2 - скорост шайбы.

отсюда, скорост игрокa: v1 = (m2×v2):m1 = 0.092 m/s

Democritus proposed an atomic model of matter that consisted of indivisible and indestructible particles called atoms.

Democritus's model of the atom was based on the idea that all matter is made up of small, indivisible particles called "atoms." He believed that atoms were in constant motion and that they could combine to form larger particles or break apart to form smaller ones.

This model is often referred to as the "billiard ball" model because Democritus thought that atoms behaved like billiard balls, bouncing off of each other and combining to form new substances. While his model did not include the concept of the nucleus or the arrangement of electrons, it was an important step toward the modern understanding of atomic structure.

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Answer:

v = 6t² + t + 2, s = 2t³ + ½ t² + 2t

59 m/s, 64.5 m

Explanation:

a = 12t + 1

v = ∫ a dt

v = 6t² + t + C

At t = 0, v = 2.

2 = 6(0)² + (0) + C

2 = C

Therefore, v = 6t² + t + 2.

s = ∫ v dt

s = 2t³ + ½ t² + 2t + C

At t = 0, s = 0.

0 = 2(0)³ + ½ (0)² + 2(0) + C

0 = C

Therefore, s = 2t³ + ½ t² + 2t.

At t = 3:

v = 6(3)² + (3) + 2 = 59

s = 2(3)³ + ½ (3)² + 2(3) = 64.5

The visible phenomenon that is often created by colliding ice crystals and water droplets during the vertical development of cumulus clouds is a rainbow.

Rainbows are a beautiful and fascinating natural phenomenon that occur when light interacts with water droplets in the air. The process that leads to the formation of a rainbow involves the refraction and reflection of light as it passes through the water droplets.

When sunlight enters a water droplet, it is refracted or bent, and the different colors that make up the white light are separated based on their wavelengths. This is known as dispersion. The colors of light are then reflected inside the droplet and refracted again as they exit, resulting in the formation of a circular arc of colors in the sky.

The formation of a rainbow requires specific conditions, such as the presence of sunlight and the proper orientation of the observer relative to the angle of the refracted light.

Rainbows are often seen in the sky opposite the sun and occur when the observer is positioned between the sun and the water droplets. Overall, rainbows are a beautiful reminder of the complex interactions between light and matter in the natural world.

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Stars are formed from giant molecular clouds. A protostar is a forming star that is still in the process of condensation. It is a star that is too small to undergo nuclear fusion. Hence, it is not yet a "main sequence star".

Stages of star formation:

Here are the stages of the formation of a new star from the beginning of star formation to star formation completion:

1. Giant Molecular Clouds: Giant molecular clouds are the birthplace of new stars. These clouds are massive, dense clouds of dust and gas, primarily hydrogen.

2. Gravity pulls the cloud inwards: As the gas and dust get denser and denser, gravity begins to pull them together.

3. Formation of a protostar: The cloud becomes so dense that it forms a ball of gas called a protostar. The protostar is not yet a true star because it is not producing energy through nuclear fusion.

4. Nuclear Fusion: When the temperature inside the protostar reaches a high enough level, nuclear fusion occurs. At this point, the protostar becomes a true star.

5. Main sequence star: A star that has reached a stable state of nuclear fusion is called a "main sequence star".

6. Star Formation completed: A star will continue to exist until it uses up all of its fuel. At that point, it will become a red giant or a supernova. Hence, this is the completion of the process of star formation.

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Answer:

hmmm i dont know....

Explanation:

i just wanted free point. TANKS YOU SIR!!

If the mixture is thermally isolated from its surroundings, then it, loses thermal energy to the environment outside as it comes to a final temperature. The correct answer is d.

When the sample of lead is placed in the water, heat will flow from the lead to the water until they reach a common final temperature. Since the final temperature will be less than the initial temperature of the lead, heat must have flowed out of the lead into the surroundings, causing the lead to lose thermal energy to the environment outside the system.

Since the mixture is thermally isolated from its surroundings, no thermal energy is exchanged between the system (lead and water) and the environment during the process. However, heat can still flow within the system itself until thermal equilibrium is reached. Option d is correct.

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Answer:

bromine

Explanation:

Any element in the halogen group will have seven valence electrons. These elements include fluorine, chlorine, bromine, iodine, and astatine

Answer:

cohesion and adhesion property of water

Explanation:

Water - the universal solvent with many unique properties. According to the given question, one of the unique properties of water that can be the best answer to the question is the property of cohesion and adhesion of water.

Therefore, the long distance water movement, from roots up to leaves, of the water transport in large plants depends on one unique property of water. Water's unique property of  cohesion and adhesion  allows water molecules to stick together so they can be pulled upward by the force of transpiration.

The Sun is not large enough to collide into a black hole, hence this cannot occur by a natural process.

However, the Earth would continue to revolve around a black hole of equal mass if you theoretically replaced it in the same place. Whatever happens, the world will continue to revolve.

However, it wouldn't be very healthy to continue living here since instead of the Sun's beneficial spectrum powering us, we would receive harsh radiation (extremely short wavelength), which is what is emitted when matter is drawn into a black hole. Any type of life would probably not be able to endure in such an environment.

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Given data

*The half-life of iodine-131 is t = 8.07 days

*The amount of quantity left is N = 0.25 g

*The number of days is T = 40.35 days

The expression for the radioactivity decay is given as

Substitute the values in the above expression as

Answer:

See below

Explanation:

40.35 days / (8.07 day per half life) = 5 half lives

.25 = x ( 1/2)^5

.25 / ( 1/2)^5 = x = 8 gm originally

Answer:

The forces acting on the root beer is the ice cream. This means that the 'air' in the ice cream keeps it at the top of the root beer enabling it to float right at the top.