I need help pleaseee

Answer:

B = 0.088 T

Explanation:

Given that,

The length of a solenoid, l = 0.4 m

No. of turns of wire, N = 356

Current, I = 79 A

We need to find the magnitude of the magnetic field at the center of the solenoid. It is given by the formula.

\(B=\mu_onI\\\\B=\mu_o \dfrac{N}{l}\times I\\\\B=4\pi \times 10^{-7}\times \dfrac{356}{0.4}\times 79\\\\B=0.088\ T\)

So, the magnitude of the magnetic field at the center of the solenoid is 0.088 T.

Hi there!

We can use Ohm's law to solve for the resistance of the lamp.

\(V = IR\)

V = Voltage (V)
I = Current (A)
R = Resistance (Ω)

We can rearrange to solve for resistance.

\(R = \frac{V}{I}\\\)

Plug in the given values:

\(R = \frac{120}{0.5} = \boxed{240 \Omega}\)

Skinner's Operant Conditioning focus stressed that the  consequences of a behavior will indicate if there is  possibility of it being repeated and also  the human behavior  can be attributed to something in a person's environment.

Pavlov's classical Conditioning stressed that two stimuli can be linked  together  so that there can be new learned response in indivisuals .

Example of Pavlov's classical Conditioning  is that a dogs could be conditioned to salivate at the sound of a bell if it was programmed to ring at the time of food.

Example of Skinner's Operant Conditioning is that of negative reinforcement which was demonstrated by placing a rat in  Skinner box  which then subjected to unpleasant electric current  and make it to experience some discomfort.

Classical conditioning can as well be described as the Pavlovian or respondent conditioning which is the learning that do take place when two stimuli are linked together  and they can bring about new learned response in a person or animal.

Operant conditioning  was the one that stressed that the cause of human behavior  can be linked to the something in a person's environment.

Learn more about conditioning at:

https://brainly.com/question/10399309

#SPJ1

Answer:

batrix

Explanation:

A hook that joins the hoist and the end effector supports the weight. The latching kit is the component that requires replacement the most frequently based on our examination expertise.

Modern cranes often use internal combustion engines, electric motors, or hydraulic systems to give far larger lifting capacities than were previously conceivable, however manual cranes are still used in places where the provision of electricity would be uneconomical.

Mobile cranes and static cranes are the two primary types of cranes. A static crane is a fixed or semi-permanent structure attached to the ground or a building that raises and transfers items along a predetermined path. A mobile crane may be transported from one job site to another since it is mounted on feet or wheels.

To know more about replacement visit:

https://brainly.com/question/20721610

#SPJ1

The fraction of the initial kinetic energy is transformed into thermal energy is 3/4.

The fraction of the initial kinetic energy is transformed into thermal energy is calculated by applying the principle of conservation of energy as shown below.

Mathematically, this is given as;

ΔK.E = E

where;

E = K.Ef - K.Ei

where;

E = (¹/₂mu² - ¹/₂mv²) / (¹/₂mu²)

where;

E = (u² - v²) / (u²)

E = (20² - 10²) / (20²)

E = 0.75 = 3/4

Thus, the fraction of the initial kinetic energy is transformed into thermal energy is a function of the change in speed of the baseball.

Learn more about kinetic energy here: https://brainly.com/question/25959744

#SPJ1

Answer:

Centripetal acceleration must involve a change in a. an object's tangential speed.

Explanation:

Centripetal acceleration must involve a change in direction of motion of the object.

centripetal acceleration is the acceleration of a body traversing a circular path. Because velocity is a vector quantity (that is, it has both a magnitude, the speed, and a direction), when a body travels on a circular path, its direction constantly changes and thus its velocity changes, producing an acceleration. The acceleration is directed radially toward the center of the circle.

In your daily existence, you must have encountered numerous instances of centripetal acceleration. A centripetal acceleration occurs when you drive in a circle, and a centripetal acceleration also occurs when a satellite orbits the earth. Centripetal refers to being in the center.

Learn more about centripetal acceleration here:

https://brainly.com/question/14465119

#SPJ2

Answer:

Hitting it or throwing it with force.

Answer: 6.08 m/s

Explanation:

w=mg---> (9.8)(0.3)=2.94

Fc=mv^2/r ---> Fc=r(FT+w)/m

V=sqrt(r(FT+w)/m)

sqrt(2(2.6+2.94)/0.3= 6.08 m/s  

hope this helps :>

A Position versus Time graph is shown with y-axis labeled position in meters north up to 20 and x-axis labeled time in seconds up to 10. Using the graph the instantaneous velocity in m/s of the object at 7 seconds is 0 m/s north.

Instantaneous velocity is the rate of change of location over a very brief period of time (almost zero). m/s, the SI unit of measurement. The size of the immediate velocity is known as the instantaneous speed. Its value is identical to that of instantaneous velocity but lacks direction.

Given that in the graph a line connects points (0, 0) and ( 1, 4). A horizontal line connects points (1, 4) and (4, 4). A line connects points (4, 4) and (6, 10). A horizontal line connects points (6, 10) and (8, 10). A line connects (8, 10) and (9, 14) and then (10, 15). The instantaneous velocity in m/s of the object at 7 seconds is 0 m/s north.

The instantaneous velocity in m/s of the object at 7 seconds is 0 m/s north.

To learn more about  instantaneous velocity refer to the link:

brainly.com/question/13190516

 #SPJ1

Answer: The scenario violates the second law of thermodynamics.

Explanation: The second law states that heat cannot be converted into work without some loss of usable energy, and that the amount of usable energy in a closed system will always decrease over time. Therefore, the machine described in the scenario cannot exist because it would violate the second law by converting all of the heat into electricity without any loss of usable energy.

Answer:

I pretty sure the answer is A " Behavior that does not involve the forebrain, or "higher" centers of an animal's brain."

Explanation:

I say this because it is bassicaly saying you body and brain does this without think which is a reflex. Such as geting your knee tapped with a rubber hamer it shoots up with out thinking about it.

Answer:

Pretty sure it's B. However, I am not positive.

Explanation:

Answer:

see below

Explanation:

The triangle stands for the change in

We would change the change in x

Answer:

Δ This is the symbol of Delta which means Change

and x is length/distance/position.

Thus, Δx stands for Change in length/distance/position.

-TheUnknownScientist

Answer:

B) Mass is a measurement of force

Explanation:

Mass is not a measurement of force, mass is a measurement of the amount of matter in an object.

Answer:

PE = 137.2931 J

Explanation:

PE = 137.2931 J

The spontaneous drying of leaves occurs due to the loss of moisture through evaporation, primarily facilitated by transpiration and environmental factors such as temperature, humidity, and airflow. Aging and senescence also contribute to the process.

The spontaneous process of drying leaves, also known as desiccation, is a natural occurrence that takes place as a result of various factors. Primarily, it involves the loss of moisture from the leaf tissues through evaporation. Leaves have specialized structures called stomata, small openings on their surfaces, which facilitate the exchange of gases, including water vapor.

When environmental conditions such as high temperature, low humidity, and increased airflow prevail, water molecules escape through the stomata into the surrounding air. This process, called transpiration, plays a significant role in leaf drying. Additionally, sunlight accelerates the rate of evaporation by providing energy to convert water into vapor.

As moisture content decreases, the cell walls of the leaf tissues contract, causing the leaf to become dehydrated and eventually dry. The process is also influenced by the plant's natural aging and senescence, where the leaf undergoes programmed cell death.

To learn more about moisture

https://brainly.com/question/30457844

#SPJ8

- The resistance of the first resistor (R₁) is 12 Ω.

- The electromotive force (EMF) of the battery is 18 V.

- The internal resistance of the battery is 12 Ω.

To solve the given problem, we can apply Kirchhoff's laws and Ohm's law to determine the resistance of the first resistor (R₁) and the electromotive force (EMF) and internal resistance of the battery.

Let's start by calculating the resistance of the first resistor (R₁):

1. Apply Ohm's law to find the voltage drop across the external circuit:

  V = I * R

  V = 1 A * 6 Ω

  V = 6 V

2. The voltage drop across the external circuit is equal to the EMF minus the voltage drop across the internal resistance of the battery:

  V = E - Ir

  6 V = E - (1 A * r)   (where r is the internal resistance of the battery)

3. We also know that the EMF of the battery is the sum of the voltage drops across each cell in the battery:

  E = 6 cells * 3 V/cell

  E = 18 V

4. Substitute the value of E in the equation from step 2:

  6 V = 18 V - r

  r = 12 Ω

Therefore, the resistance of the first resistor (R₁) is 12 Ω.

For more such information on: resistance

https://brainly.com/question/28135236

#SPJ8

Explanation:

Explanation:Those interested in working with trace evidence, such as glass, hairs, and gunshot residue, should focus on instrumentation skills and take courses in geology, soil chemistry, and materials science. If forensic biology, such as DNA analysis, is preferred, take microbiology, genetics, and biochemistry courses. Those interested in the toxicological aspects of this work, such as obtaining and interpreting toxicology reports, should study physiology, biochemistry, and chemistry.

Complete Question

A 10 kg medicine ball is thrown at a velocity of 15 km/hr ( m/s) to a 50 kg skater who is at rest on the ice. The skater catches the ball and subsequently slides with the ball across the  ice.

Calculate the kinetic energy after collision(in joules).

Answer:

 \(K.E=70.23J\)

Explanation:

From the question we are told that:

Mass of ball \(m_b=10kg\)

Speed \(V_{b1}=15 km/hr ( m/s)\)

            \(V_{b1} = 4.1667 m/s\)

            \(V_{b1} = 4.1667 m/s\)

Mass of Skater \(m_s=50kg\)

Generally the equation for conservation of momentum is mathematically given by

  \(m_sV_{s1}+m_bV_{b1}=(m_s+m_b)V\)

  \(V=\frac{m_sV_{s1}+m_bV_{b1}}{(m_s+m_b)}\)

  \(V=\frac {50+10*4.1667}{(50+10)}\)

  \(V=1.53m/s\)

Generally the equation for  Kinetic energy is mathematically given by

 \(K.E=\frac{1}{2}(m_s+m_b)V^2\)

 \(K.E=\frac{1}{2}(50+10)(1.53)^2\)

 \(K.E=70.23J\)

Therefore kinetic energy K.E after collision is given as

 \(K.E=70.23J\)

the number density of charge carriers (electrons) in the wire is 6.02E28.

Current field is directly proportional to the density of electron. Thus,  the relation between current density and an electric field is J ∝ E.

Where, J is density of electron and E is electric field Intensity.

Given,

An aluminum wire has a diameter of 2.588mm, and

The Current caries by the wire is 2 amps.

From the general formula of the number density of electron:

n = Nₐ× ρ× x/M

Where, n = number of density of electron,

Nₐ = Avogadro's number

ρ = density

M = molar mass of aluminum

Substitute these values in the above equation,

n = 6.0221 * 10²³ * 2.7* 10³ *(10⁻¹/ 2.7*10⁻³)

n = 6.02*10²⁸

n = 6.02E28

Therefore, the number density of charge carriers (electrons) in the wire is 6.02E28.

Learn more about density of electron here:

https://brainly.com/question/15120499

#SPJ6

(a) The work done by the 150 N force is 877.5 Joules.

(b) The coefficient of kinetic friction between the crate and the surface is approximately 0.437.

To answer this problem, we must take into account the work done by the applied force as well as the work done by friction.

(a) The applied force's work may be estimated using the following formula:

Work = Force * Distance * cos(theta)

where the force is 150 N and the distance is 5.85 m. Since the force is applied horizontally and the displacement is also horizontal, the angle theta between them is 0 degrees, and the cosine of 0 degrees is 1.

As a result, the applied force's work is:

Work = 150 N * 5.85 m * cos(0) = 877.5 J

So, the work done by the 150 N force is 877.5 Joules.

(b) Frictional work is equal to the force of friction multiplied by the distance. The work done by friction is identical in amount but opposite in direction to the work done by the applied force since the crate travels at a constant speed.

The frictional work may be estimated using the following formula:

Work = Force of Friction * Distance * cos(theta)

The net force applied on the crate is zero since it is travelling at a constant pace. As a result, the friction force must be equal to the applied force, which is 150 N.

Thus, the work done by friction is:

Work = 150 N * 5.85 m * cos(180) = -877.5 J

Since the work done by friction is negative, it indicates that the direction of the frictional force is opposite to the direction of motion.

The coefficient of kinetic friction may be calculated using the following equation:

Friction Force = Kinetic Friction Coefficient * Normal Force

The normal force equals the crate's weight, which may be computed as:

Normal Force = mass * gravity

where the mass is 35.0 kg and the acceleration due to gravity is approximately 9.8 m/s^2.

Normal Force = 35.0 kg * 9.8 m/s^2 = 343 N

Now, we can rearrange the equation for the force of friction to solve for the coefficient of kinetic friction:

Force of Friction = coefficient of kinetic friction * Normal Force

150 N = coefficient of kinetic friction * 343 N

coefficient of kinetic friction = 150 N / 343 N ≈ 0.437

As a result, the kinetic friction coefficient between the container and the surface is roughly 0.437.

In summary, the work done by the 150 N force is 877.5 Joules, and the coefficient of kinetic friction between the crate and the surface is approximately 0.437.

For more such questions on work, click on:

https://brainly.com/question/8119756

#SPJ8

Answer:

Explanation:

The car is going from v = 0 m/s to v = 30 m/s

I'm going to make a pretty sure bet that Vf = 30

a = Δv/t = (vf - vi)/t = (30 - 0) / 6 = 5 m/s²

Answer:

a) 4.0816s

b) -9.8 ms^-1

c) 81.63265m

The magnetic field intensity produced by the cylindrical conductor at any point in space is Infinite

To calculate the magnetic field intensity produced by a long cylindrical conductor with the given current density, we can apply Ampere's circuital law.

Ampere's circuital law states that the line integral of the magnetic field intensity around a closed path is equal to the product of the current enclosed by the path and the permeability of free space (μ₀).

The formula for Ampere's circuital law is as follows:

∮ B · dl = μ₀ * I_enclosed

In this case, we have a long cylindrical conductor with current density Jv(ρ) = 200e^(-0.2ρ) az A/m², where ρ represents the radial distance from the axis of the cylinder.

To find the magnetic field intensity (B) at any point in space, we'll consider a circular path of radius ρ around the axis of the cylinder.

The current enclosed within this circular path can be calculated by integrating the current density over the cross-sectional area of the cylinder at radius ρ.

I_enclosed = ∫ Jv(ρ) · dA

The differential area element dA for a circular cross-section is given by dA = ρ · dθ · dz, where ρ represents the radial distance, dθ represents an infinitesimal angle, and dz represents the infinitesimal length along the cylinder.

Substituting the current density into the equation and considering the cylindrical symmetry, we have:

I_enclosed = ∫ Jv(ρ) · dA

= ∫ (200e^(-0.2ρ) az) · (ρ · dθ · dz)

= 200az ∫ ρe^(-0.2ρ) · dθ · dz

Now, we need to determine the limits of integration. Since we are considering a very long, cylindrical conductor, the limits of integration are from 0 to ∞ for ρ, from 0 to 2π for θ, and from -∞ to ∞ for z.

I_enclosed = 200az ∫₀^∞ ∫₀^(2π) ∫_(-∞)^∞ ρe^(-0.2ρ) · dθ · dρ · dz

To simplify the integration, we'll change the order of integration as follows:

I_enclosed = 200az ∫₀^(2π) ∫₀^∞ ∫_(-∞)^∞ ρe^(-0.2ρ) · dz · dθ · dρ

Now, let's evaluate the innermost integral

∫_(-∞)^∞ ρe^(-0.2ρ) · dz = 2∫₀^∞ ρe^(-0.2ρ) · dρ

This integral can be solved using integration by parts. By applying the formula for integration by parts, the integral simplifies to:

2∫₀^∞ ρe^(-0.2ρ) · dρ = 2[ρ(-5e^(-0.2ρ))]₀^∞ + 10∫₀^∞ e^(-0.2ρ) · dρ

Simplifying further, we get:

2[ρ(-5e^(-0.2ρ))]₀^∞ + 10∫₀^∞ e^(-0.2ρ) · dρ = 0 + 10(∞ - 0) = ∞

Since the integral diverges to infinity, the current enclosed is infinite. This implies that the magnetic field intensity produced by the cylindrical conductor at anyity point in space is also infinite.

For more such questions on Magnetic Field Intensity

https://brainly.com/question/26257705

#SPJ11

Answer: B) Electric Force.

Explanation: The stationary charges on a balloon produce an electric field around the balloon. This electric field can exert an electric force on other charged objects in the vicinity of the balloon. This force can cause the objects to move towards or away from the balloon depending on their charge. However, there is no current or gravity produced by the stationary charges on the balloon.

Answer:

The horizontal distance between two adjacent crests or troughs is known as the wavelength.

Answer: Wavelength

Explanation:

From crest to crest, it is one full wavelength

An electron in a Hydrogen atom goes from the n=3 energy level to the n=1 energy level by emitting light. The energy of this light wave will be 19.38 * \(10^{-19}\) J

Light wave energy is a kind of kinetic energy with the ability to make types of light visible to human eyes. Light is defined as a form of electromagnetic radiation emitted by hot objects like lasers, bulbs, and the sun.

1/ lambda = R ( 1/\(nfinal^{2}\) - 1 / \(n(initaila)^{2}\))

                = 1.097 * \(10^{7}\) * ( 1/ \(1^{2}\) - 1/ \(3^{2}\) )

   lambda = 1.0256 * \(10^{-7}\) m

Energy = h*c / lambda

            = 6.626 * \(10^{-34}\) * 3 * \(10^{8}\) /  1.0256 * \(10^{-7}\)

            = 19.38 * \(10^{-19}\) J

To learn more about Light wave here:

https://brainly.com/question/25588186

#SPJ1

Answer:

C the particle must be somewhere.

Explanation:

This is because normalization of wave function means the maximum probability of finding a particle in a region is 1. And a Wave function describes the probability of finding a particle in region. Also Since it is a probability distribution, its integral over all space must be 1, explaining that the probability that the particle is somewhere and thus it must integrate to 1, meaning it must be it must be normalizable