the metal loop is rotating in a uniform magnetic field. is the magnetic flux through the loop changing?

Answer:

Metals conduct heat and reduce the kinetic energy within the components that need to remain cool

Answer:

the initial velocity is 3.9

Explanation:

v=D/T

h=vi.t-1/2gt²

(18.6-2.4)=vi x 4.7-1/2 x 10 x (4.7)²

16.2=vi x 4.7 - 110.45

vi=26.95 m/s

Answer:

high sunlight intensity

high wind speed

Explanation:

The environmental conditions in the UK on 7th June 2017 are improved because the electricity generation in the UK is done by the renewable sources of energy.

A renewable resource,  is a type of natural resource that will refill to replace the fraction destroyed by consumption  in a finite length of time in a human timescale, either naturally or other periodic processes.

The environmental conditions in the UK are improved on 7th June 2017 due to following reasons ;

1. The renewable energy sources create comparatively low amounts of Gas (GHG) emissions and traditional pollution,

2. During manufacture and transportation. They do emit some emissions and pollutants.

3. Using fossil fuels to generate electricity that creates no greenhouse gas emissions and lowers some forms of air pollution.

4. Increasing energy diversity and minimizing reliance on foreign fuels.

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To find velocity, you need to divide the distance traveled and the time it took to travel that distance.

Velocity is a vector quantity that indicates the rate of change of an object's position in a given direction. It is calculated by dividing the change in position of an object by the time interval over which the change occurred.

The formula for velocity is,

velocity = distance / time

For example, if a car traveled 100 meters in 10 seconds, the velocity would be,

velocity = 100 meters / 10 seconds

velocity = 10 meters per second

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Electric charge inside a sealed electrical system is influenced by power input signal and component resistance. The pace at which electrons travel is called current.

The elements influence very strong a current flow is: Resistance of the cable and its cross-section. the conductor's material composition and thickness. the possible difference between the conductor's two points. the rate of electron drift and its density

The amount or fluid velocity of electrons passing a location in the circuit inside one time is known as current. Cranking amps, or amps for short, is another name for current flow. More current is going to flow whenever the voltage is greater, and less current is going to move because when voltage is lesser.

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Answer:

Explanation:

There are three states of matter; solid, liquid and gaseous states.

The solid state of matter has it's particles tightly packed with very restricted  or no movement within the molecule hence the reason for it's definite shape.

The liquid state of matter has it's particles with a free movement (better than solid but not as free as gases) within the molecule hence it's particles are loosely packed within the molecule. Hence, they (liquids) assume the shape of the container in which they are stored and they move freely when released from the container.

The gaseous state of matter has it's particles totally loosely packed as a result of it's particles moving freely and colliding against one another.

Thus, we can use the above descriptions to answer the statements from the question.

1) The atoms in a  ----- are closely packed, but able to slide past each other. Answer: From the description above, it can be deduced that the atoms here are in a solid because the particles within a solid are closely packed.

2) The atoms in a  -------- spread as far apart as possible.

Answer: The atoms here are in gaseous form because, as described earlier, they are loosely packed and  can thus be as far apart as possible.

3) A  ----- has a definite shape and volume.

Answer: As described earlier, a solid substance would have a definite shape and volume because it's particles are tightly packed.

4) The shape of a  ----- can change, but the volume is definite.

Answer: The substance here is a liquid because the particles are free (but not as free as gases) and would have a definite volume but will assume the shape of the any container they are placed in (hence they have an irregular shape).

Answer:

The atoms in a

✔ liquid

are closely packed, but able to slide past each other.

The atoms in a

✔ gas

spread as far apart as possible.

A

✔ solid

has a definite shape and volume.

The shape of a

✔ liquid

can change, but the volume is definite.

Explanation:

The momentum of the electron traveling at a velocity of 4 x 10^5 m/s is approximately 3.64 x 10^-24 kg·m/s. The momentum of an electron, like other objects, depends on both its mass and velocity.

The momentum of an electron traveling at a velocity of 4 x 10^5 m/s can be calculated using the formula p = mv, where p is momentum and m is mass. To determine the electron's momentum, we need to know the mass of the electron.

The momentum of an object is defined as the product of its mass and velocity. In the case of the electron, the mass is approximately 9.11 x 10^-31 kg. By multiplying the mass by the velocity, we can find the momentum.

Using the formula p = mv, where p is momentum, m is mass, and v is velocity, we substitute the values:

p = (9.11 x 10^-31 kg) x (4 x 10^5 m/s)

Performing the calculation, we find that the momentum of the electron is approximately 3.64 x 10^-24 kg·m/s.

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The two measurements used to determine BMI are height and weight (option B).

The body mass index (BMI) is a term that refers to a mathematical ratio that associates the weight and height of an individual, devised by the Belgian statistician Adolphe Quetelet, which is why it is also known as the Quetelet index.

The Body Mass Index takes into account weight and height. However, and despite the fact that it is a widely accepted criterion, it is not exact because it does not take into account other factors such as age, gender, percentage of fat, percentage of muscle mass, among others.

The Body Mass Index is used by doctors to have a reference parameter to assess the body mass status of a patient. From this table it is possible to identify if a person has an ideal weight, overweight or underweight.

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Answer:

Nuclear reactors are the heart of a nuclear power plant. They contain and control nuclear chain reactions that produce heat through a physical process called fission. That heat is used to make steam that spins a turbine to create electricity

~+lil more info!+~

What material is used to power a nuclear reactor?

uranium !

All commercial power reactors are based on nuclear fission. They generally use uranium and its product plutonium as nuclear fuel, though a thorium fuel cycle is also possible.

Answer: Slow moving feather

The parked car has 0 velocity since it is stationary. The momentum of the car is 0 because momentum = mass*velocity.

On the other hand, the feather is moving, so its velocity is some positive value. Even if it's a small velocity value and the mass of the feather is small, the two will multiply to some positive momentum which is larger than 0.

So the feather has larger momentum compared to the parked car.

Answer: 3/4 net decline
(three quarters)

Explanation:

The momentum after the collision is 25500 kg⋅m/s. Each object's momentum may change, but the overall momentum must not change.

In Newtonian mechanics, momentum is calculated as the sum of an object's mass and velocity. It has a magnitude and a direction, making it a vector quantity.

The rate of change of a body's momentum is equal to the net force exerted on it, according to Newton's second law of motion. Regardless of the frame of reference, momentum is a conserved quantity in any inertial frame, which means that if an enclosed system is not subject to outside influences, its total linear momentum remains constant.

The formula for calculating momentum is expressed as

momentum = mass x velocity

According to the law of conservation of momentum, initial momentum = final momentum

The formula for initial momentum is

m1u1 + m2u2

where

m1 = mass of first car

u1 = initial velocity of first car

m2 = mass of second car

u2 = initial velocity of second car

From the information given,

m1 = 900

u1 = 0 because it is at rest

m2 =  1700

u2 = 15.0 m/s

Initial momentum = 900 x 0 +  1700 x 15.0 = 25500

Momentum after the collision is 25500 kg⋅m/s

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Answer:

T₂ = 123.9 N,  θ = 66.2º

Explanation:

To solve this exercise we use the law of equilibrium, since the diaphragm does not appear, let's use the adjoint to see the forces in the system.

The tension T1 = 100 N, we create a reference frame centered on the pole

X axis

       T₁ₓ - \(T_{2x}\) = 0

        T_{2x}= T₁ₓ

Y axis y

      T_{1y} + T_{2y} - 200N = 0

      T_{2y} = 200 -T_{1y}

let's use trigonometry to find the component of the stresses

         sin 60 = T_{1y} / T₁

         cos 60 = t₁ₓ / T₁

         T_{1y} = T₁ sin 60

         T1x = T₁ cos 60

         T_{1y}y = 100 sin 60 = 86.6 N

         T₁ₓ = 100 cos 60 = 50 N

for voltage 2 it is done in the same way

         T_{2y} = T₂ sin θ

         T₂ₓ = T₂ cos θ

we substitute

           T₂ sin θ= 200 - 86.6 = 113.4

           T₂ cos θ = 50              (1)

to solve the system we divide the two equations

           tan θ = 113.4 / 50

           θ = tan⁻¹ 2,268

           θ = 66.2º

we caption in equation 1

           T₂ cos 66.2 = 50

           T₂ = 50 / cos 66.2

           T₂ = 123.9 N

Answer:

Extrusive rocks form on the Earth's surface from lava, which is magma that has risen from underground. Intrusive rocks are formed when magma cools and solidifies within the planet's crust.

That's the difference

Answer:

Explanation:

first get the velocity value in km/h

140/2=70km/h

to change the value (kilometers per hour) to meters per second divide by 3.6

70/3.6=19.44m/s

Answer:

w=f×s

w = 16000 J, hope this helps

The system described by the transfer function G(s) = -co² s² + 2a + w², with a damping ratio of 1.3 and a natural frequency of 0.5, has an overdamped unit step response. So, the correct option is (E)

The transfer function of the system is given as G(s) = -co² s² + 2a + w², where co represents the damping ratio, a represents an arbitrary constant, and w represents the natural frequency of the system. We are given that the natural frequency is 0.5 and the damping ratio is 1.3.

To determine the type of unit step response, we need to analyze the damping ratio (co) in relation to the critical damping value (co_critical).

The critical damping ratio (co_critical) is defined as the value where the system is on the threshold between being overdamped and underdamped. It is given by the formula co_critical = 2 * sqrt(a * w²).

In our case, the natural frequency (w) is 0.5, so we can calculate co_critical as follows: co_critical = 2 * sqrt(a * 0.5²).

Since the damping ratio (co) is given as 1.3, we can compare it with co_critical to determine the type of unit step response.

If co > co_critical, the system is considered overdamped (Option E).

If co = co_critical, the system is considered critically damped (Option D).

If co < co_critical, the system is considered underdamped (Option C).

Based on the given values, we can determine that the system is overdamped (Option E) because the damping ratio (1.3) is greater than the critical damping ratio.

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Answer:

no

Explanation:

Without specific information about the experiment and its results, it is not possible to determine whether the physical law C = πD was satisfactorily verified.

As an AI language model, I don't have personal feelings. However, I can provide an analysis based on the given statement.

The equation C = πD represents the relationship between the circumference (C) and the diameter (D) of a circle, where π is the mathematical constant pi. To verify this physical law in an experiment, measurements of the circumference and diameter of circles would need to be taken and compared.

Since the context of the experiment or the specific measurements are not provided, it is not possible to determine whether the physical law was satisfactorily verified. The verification would depend on the experimental setup, the accuracy of the measurements, and the extent to which the data aligns with the expected relationship between circumference and diameter as described by the equation C = πD.

To assess the verification of the physical law, a detailed analysis of the experimental procedure, measurements, and the extent of agreement with the equation would be necessary.

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Answer:

P=F/A

Explanation:

P. Is pressure

F is force

A is area

Answer:

See below.

Explanation:

Newton's First Law

A body at rest persists in its state of rest, and a body in motion remains in constant motion along a straight line unless acted upon by an external force.

Newton's Second Law

A body's acceleration is directly proportional to the force exerted on it and is in the same direction as the force.  F=mA  (Force = Mass x Acceleration)

==============================================

A. A body of mass 2kg move vertically upwards has its velocity increased uniformly from 15m/s to 45m/s in 5s. neglecting air resistance, the upward vertical force acting on the body. [g=10ms 2] B. The velocity ratio and efficiency of pulley are 8 and 85% respectively. How much effort is required to lift a load of 120kg with this system [g=10m/s²] ​

Force = Mass x Acceleration

Acceleration is (45m/s - 15 m/s)/5 sec) or 6 m/sec^2

Force = 2kg*(6 m/sec^2)

Force = 12 kg*m/s^2    1 kg*m/s^2 is the SI unit for force, and is named 1 Newton(N), after . . . Newton.

Force = 12N

B.  I'm not sure how to interpret "The velocity ratio and efficiency of pulley are 8 and 85% respectively."  I'll assume "effort" is the energy required.  

I'll calculate the energy required in a perfect system, and then we'll consider the efficiency issues.

By lifting an object with mass off the Earth's surface (height = 0 meters) we impart a potential energy, PE, to the object.  This energy is stored in the object until it is allowed to move back closer to Earth.  This potential energy is given by the equation:

PE = mgh

where PE is potential energy in Joules, m is mass in kg, g is the acceleration due to Earth's gravity (9.8 m/sec^2, but we'll use 10 m/sec^2 as stated in the problem), and h is the vertical distance moved, in meters.

PE = (120kg)(10 m/sec^2)(h).  We aren't given a height, h.  Let's express the answer in terms of 1 meter:  How much potential energy is put into the 120kg load to raise it 1 meter?

PE = (120kg)(10 m/sec^2)(1 m)

PE = 1200 kg*m^2/sec^2 or 1200 kg*m/sec^2 per meter

The unit kg*m/sec^2 is 1 Joule

PE = 1200 Joules/meter

1200 Joules are required to raise 120kg 1 meter.  This is increased due to the less-tha-100% efficiency of 85%.

At 85% efficiency, the energy required would be 1200J/0.85 = 1412 J to raise 120kg 1 meter, with 85% efficiency,   I don't6 know how to handle the velocity ratio number.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                

Answer:

Check explanation.

Explanation:

Net force is essentially the sum of the forces enacting upon an object. One example of net force is gravity and normal force. It is commonly accepted that every object has a force acting upon it, even if it is stationary. To give an example, the weight of an object has a force upon the earth but the earth pushes back, essentially meaning that the object will not sink.

Evaluate skill performance against a scale is known as Rubrics; option D

Performance evaluation is the systematic process of assessing the performance of an individual in a certain task, skill or job.

Performance evaluation is done against a set of standard measurements or a rating scale known as Rubrics.

Rubrics use a set of specific criteria to evaluate an individual student or a group of students performance in a certain task assigned to them.

Rubrics use  a rating system where points or scores are awarded depending on the skillset level or ability demonstrated.

In conclusion, rubrics are used to evaluate performance.

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Answer:

The block didn't slide due to balancing of gravitational force with friction force

Explanation:

When the block was given a flick the force provided an acceleration to it and it moved up the inclined plane. when the block reached top it was expected that it would slide back but it didn't this happened because of the frictional force acting on the bottom the block which was balancing the gravitational force component along the plane and this prevented sliding back of the block.

static friction  was balancing mg*sin(theta)

fs = mg*sin(theta)

The largest wavelength that will give constructive interference at the observation point is 154 meters.

To determine the largest wavelength that will give constructive interference at an observation point equidistant from two sources, we can use the concept of path difference.

Constructive interference occurs when the path difference between the two sources is an integral multiple of the wavelength (λ) of the wave.

In this case, the observation point is equidistant from both sources, so the path difference (Δx) can be calculated as

Δx = |distance from source 1 - distance from source 2|

Given:

Distance from source 1, d1 = 141 m

Distance from source 2, d2 = 295 m

Δx = |141 m - 295 m|

Δx = 154 m

To achieve constructive interference, the path difference (Δx) must be an integer multiple of the wavelength (λ). Therefore

Δx = N * λ,

Where N is an integer.

The largest wavelength that will give constructive interference corresponds to the smallest value of N. In this case, N = 1

So, λ = Δx / N = 154 m / 1 = 154 m.

Therefore, the largest wavelength that will give constructive interference at the observation point is 154 meters.

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If you want to encourage physical activity for persons with disabilities in your community, accessibility ramps for entering and exiting the pool would be a wonderful addition.

Any material or feature that is completely accessible to and useable by individuals with disabilities would be an example of accessibility. This could be referring to specific components, features, or the entire web experience.

Making information, actions, and/or surroundings sensible, relevant, and useable for as many individuals as feasible is the practice of accessibility. Architectural design is a typical instance of accessibility that all of us have probably seen. Think about a building's "accessible entryway."

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Answer:

Atoms are composed of electrons (charge -1), protons (charge +1), and neutrons (no charge). So in a neutral atom the correct answer is "D".

Answer:

47.5 N

Explanation:

Given

Solving

The capacitors are connected, each capacitor has a charge of Qdc=6C. The capacitors' capacitances are C1=1.0F and C2=2.0F, and the source's emf is equal to 10V. The potential difference between A and B is 5.0V.

You add each of the capacitances using the method below to determine the total can be of the a number more capacitors joined in this way: CTotal Equals C1 Plus C2 + C3, etc. Example: to determine the combined capacitance of these three parallel capacitors.

C1 and C2 serve as coupling capacitors primarily, letting AC signals travel while block DC at the inputs and outputs in order to prevent voltages from earlier or later circuits from upsetting the biased condition for the this amplifier.

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Wind Energy is the kind of energy will Cassie uses to power the boat.

What is wind energy?

The method of producing electricity using air or wind currents that naturally occur in the earth's atmosphere is known as wind energy (or wind power). Electricity is produced by modern wind turbines that harness the kinetic energy of the wind. Wind passing across the turbine's blades is the initial step.

What is the major problem with wind energy?

Wind energy has the potential to have negative environmental effects, including the possibility of reducing, fragmenting, or deteriorating habitat for wildlife, fish, and plants, as with all energy supply choices. Furthermore, flying animals like birds and bats may be harmed by turbine blades in operation.

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