A neutral metal sphere is brought close to a charged insulating sphere. The electrostatic force between the metal sphere and insulating sphere is:

The number of turns, \(\mu_0\) is the permeability of free space, l is the length of the solenoid, and R is its radius. L = 0.0011 H (Henries)

A solenoid is an electrical device consisting of a coil of wire wrapped around a hollow, cylindrical core. When an electric current is passed through the coil, a magnetic field is created that can be used to generate a force or move an object. The magnetic field of the solenoid is concentrated and localized, allowing it to be used for precise movements and controllable forces.

The self-inductance of a solenoid can be calculated using the formula

\(L = (N^2 * \mu_0 * l)/(R^2),\)

where N is the number of turns, \(\mu_0\) is the permeability of free space, l is the length of the solenoid, and R is its radius.

Plugging in the given values, we have:

\(L = (1800^2 * 4\pi*10^-7 * 0.51)/(0.02^2)\)
L = 0.0011 H (Henries).

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The frequency of the first possible harmonic after the fundamental frequency in the open-closed pipe 428.75 Hz.

Calculation:-

A. L = 80 cm

= 0.8 m

V = 343 m/s ( sound speed in the air )

V1 = n V / 2 L

= 1 X 343 / 2 X 0.8

V1 = 214.375 Hz

B. using the above equation

Vf =  V / 2 L

\(Vf\alpha 1 / L\)

so the new frequency is high than the previous or before.

C. Now L = L / 2 = 0.8 / 2

L = 0.4 m

Vn  = n V / 2 L

= 1 X 343 / 2 X 0.4

Vn  = 428.75 Hz

so the new frequency is 428.75 Hz

D. Vn  = n V / 2 L  

L  = L /2

Vn = 2 n V / 2 L  

Vn  = 2 n Vn

n  = 2n

Vn  = n' Vn

even multiples of the fundamental frequency

E. for open-closed pipe

fn  = n V / 4 L

and for an open- open pipe  

Vn = n V / 2 L

n V / 2 L  = n V / 2 L

2 L  = L

L  = L / 2

So half the length of open-open Pipe.

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Answer:

Let the power delivered by the sound wave be 'P'

Intensity by definition is the power delivered per unit area.

i.e. I =

dA

dP

;

In spherical polar coordinate system dA = r

2

Ω

I =

r

2

Ω

dP

;

I ∝

r

2

1

So if distance increases 3 fold. The Intensity becomes

9

1

times the initial

10.72 m/s^2 is the greatest acceleration that the workers can give the bucket as they pull it to the roof.

acceleration is the speed and direction change over time of a moving object. When anything moves faster or slower, it is said to be accelerating or decelerating in a straight line. Because the direction is always changing, travel on a circle accelerates even while the speed is constant.

According to Newton's second law of motion, the acceleration of an object is defined as the net force applied divided by its mass, or a = F m. This equation for acceleration can be used to calculate an object's acceleration when its mass and the net force acting on it are known.

Given,

force = 450N

mass = 42kg

acceleration = ?

a = f/m is acceleration formula.

a = 450 / 42  = 10.72 m/s^2

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Answer:

4 m/s^2

Explanation:

a= Δv/ Δt

a= (20 - 4) / (5 - 1)

a= (16) / (4)

a= 4 m/s^2

The given problem involves calculating the definite integral of a function f(x) over a specific range. The function f(x) is defined differently for different values of x, and the final result of the definite integral \(1^2\)₁ f(x) dx, where x ≤ n, is -cos(n) - (-cos(1)) + 3cos(T) - 3cos(n) + infinity.

To calculate the definite integral 1²₁ f(x) dx, where x ≤ n, we need to evaluate the integral of the given function f(x) over the specified range. The function f(x) has different definitions depending on the value of x. For x ≤ n, the function is sin(x), and for x > n, the function is -3sin(x). Additionally, the function is defined as 2x for values of x greater than a certain threshold T.

To solve this problem, we need to consider the different intervals of the range separately. First, we integrate sin(x) over the interval 1 to n. The integral of sin(x) is -cos(x), so the value of this part of the integral becomes -cos(n) - (-cos(1)).

Next, we need to integrate -3sin(x) over the interval n to T. The integral of -3sin(x) is 3cos(x), so this part of the integral becomes 3cos(T) - 3cos(n).

Lastly, we integrate 2x over the interval T to infinity. The integral of 2x is \(x^2\), so this part of the integral becomes infinity.

Combining these three parts, the final result of the definite integral \(1^2\)₁ f(x) dx, where x ≤ n, is -cos(n) - (-cos(1)) + 3cos(T) - 3cos(n) + infinity.

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Maximum work represents the highest amount of work that can be obtained from a system, while no work refers to the complete absence of energy transfer between the system and the surroundings.

Differences:

Maximum work and no work are two extremes in the context of thermodynamics, specifically in relation to energy transfer.

Maximum work refers to the amount of work that can be obtained from a system undergoing a thermodynamic process, assuming that the process is reversible and is carried out under conditions of maximum efficiency. This means that the system is able to convert all the available energy into work, without any losses due to irreversibility or inefficiency.

On the other hand, no work refers to the situation where there is no energy transfer between the system and the surroundings. This can occur when the system is in a state of equilibrium, and there is no net flow of energy between the two. In this case, the system is said to be in a state of thermal, mechanical, and chemical equilibrium.

In summary, maximum work represents the highest amount of work that can be obtained from a system, while no work refers to the complete absence of energy transfer between the system and the surroundings.

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Answer:

1a)Mass is the amount of matter in the body.

1b)Weight is the measure of the amount of force acting on a mass due to acceleration and gravity.

2a)Mass can never be zero

2b)Weight can be zero if no gravity acts upon an object. like in space

3a) Mass does not change according to location.

3b)Weight varies according to location.

Answer:

The following that could be used to make the simplest circuit are a battery, wire, switch, and a light bulb. The answer is letter D. The battery provides the energy for the bulb to work. The wire provides a pathway for the electrons to move. The switch provides the open and close of the circuit.

Explanation:

Hopefully this helped, if not HMU and I will get u a better answer

-Have a great day! :)

Answer:

Approximately \(8.4 \times 10^{2}\; \rm N\), assuming that \(g = 9.8\; \rm m \cdot s^{-2}\).

Explanation:

Let \(m\) and \(a\) denote the mass and acceleration of Spiderman, respectively.

There are two forces on Spiderman:

The directions of these two forces are exactly opposite of one another. Besides, because Spiderman is accelerating upwards, the magnitude of \(F(\text{tension})\) (which points upwards) should be greater than that of \(W\) (which points downwards towards the ground.)

Subtract the smaller force from the larger one to find the net force on Spiderman:

\((\text{Net Force}) = F(\text{tension}) - W\).

On the other hand, apply Newton's Second Law of motion to find the value of the net force on Spiderman:

\((\text{Net Force}) = m \cdot a\).

Combine these two equations to get:

\(m \cdot a = (\text{Net Force}) = F(\text{tension}) - W\).

Therefore:

\(\begin{aligned}& F(\text{tension})\\ &= m \cdot a + W \\ &= m \cdot (a + g)\\ &= 76\; \rm kg \times \left(1.3\; \rm m \cdot s^{-2} + 9.8\; \rm m \cdot s^{-2}\right)\\ &\approx 8.4\times 10^{2}\; \rm N\end{aligned}\).

By Newton's Third Law of motion, Spiderman would exert a force of the same size on the strand of web. Hence, the size of the force in the strand of the web should be approximately \(8.4\times 10^{2}\; \rm N\) (downwards.)

Answer:

Her measurements will be more accurate if she uses a cloth tape

measure instead of a ruler.

Explanation: (apex)

Answer: The battery in circuit 3 would run out more quickly when the switches are closed because the two bulbs are brighter, which means the battery is providing more energy to that circuit.

Explanation: Answer from plato

\(\mathrm {Hey, there!}\)

Let's solve your problem:

We will convert your number, 212°F, to Kelvin and Celsius.

212°F is equal to 100° Celsius.

Now, let's do the Kelvin convert.

To convert Celsius to Kelvin, we have to add 273.5 to the amount of Celsius.

100° + 273.5 = 373.5

We have all our conversions. Finally, let's set them out.

Fahrenheit: 212°F

Celsius: 100°C

Kelvin: 373.5°K

Answer:

low frequencies

Explanation:

The type of sonar that causes loud noises in the water is known as active sonar.

Active sonar is a system that emits sound waves into the water and listens for their reflections to detect objects and measure distances. It works by sending out a pulse of sound, which travels through the water and reflects off objects such as submarines, ships, or marine life.

The reflected sound, or echo, is then received by the sonar system's hydrophone, allowing it to analyze the data and provide information about the surrounding environment.

While active sonar is effective for detecting objects and underwater features, it can also produce loud noises that may have various effects on marine life.

The loud sound pulses can potentially disturb or harm marine animals, particularly marine mammals like whales and dolphins, which rely heavily on sound for communication and navigation. The use of active sonar has been a topic of environmental concern, and efforts are made to minimize its impact on marine ecosystems through regulations and responsible use.

Hence, The type of sonar that causes loud noises in the water is known as active sonar.

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1. it is true that the proton-proton chain is the main process that the Sun uses to generate energy.

2. The Sun emits the energy it does because of nuclear fusion reactions.

The primary source of energy in the Sun is nuclear fusion. The Sun's core is a hot and dense region where extreme temperatures and pressures exist. Under these conditions, hydrogen nuclei (protons) collide and fuse together to form helium nuclei. This process is known as nuclear fusion.

The specific fusion reaction that occurs in the Sun is called the proton-proton chain reaction. It involves a series of steps:

The overall result of these fusion reactions is the conversion of four hydrogen nuclei into one helium nucleus, releasing a tremendous amount of energy in the process.

Therefore,

1. it is true that the proton-proton chain is the main process that the Sun uses to generate energy.

2. The Sun emits the energy it does because of nuclear fusion reactions.

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Answer:

[1]. b

[2].c

[3].a

[4].b

Explanation:

plato

i just took the test

The answers for fill-in-the-blanks for completing this paragraph regarding dangers from the Sun are  High-frequency, Satellites, Spacecraft, and Geomagnetic Storms respectively.

Electromagnetic radiation is a type of energy radiation produced by the propagation of electromagnetic waves that are produced for natural as well as anthropogenic reasons.

X-rays and UV rays from the Sun can disrupt 1)High-frequency radio communication from ground-based radio towers. 2) Satellites may also be affected by solar particles that can damage equipment. Humans in 3)Spacecraft are also susceptible to radiation damage from the Sun. Solar activity can also cause 4)Geomagnetic Storms that can damage electrical transformers and power stations.

Thus, the answers for fill-in-the-blanks for completing this paragraph regarding dangers from the Sun are  High-frequency, Satellites, Spacecraft, and Geomagnetic Storms respectively.

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Answer:

Personally I say the yellow truck but...

Explanation:

It's heavily based on the object's mass...

If you know which object has the most mass than I would choose that one, but personally I think the yellow one has the most mass...

The difference in power for two people carrying the boxes up the ramp is 30 W.

Given the following data:

W = 40.0 N is the weight of a box.

The ramp's length is L = 2.00 m.

The platform height is h = 1.0 m.

t = 2.0 s is the time interval for the first person.

t' = 4.0 s is the time interval for the other person.

Power is the rate at which energy is used. The expression for the Power is given in the given question as,

P = W×(L+h)/t

Assume that you are solving for the first person.

P₁ = W(L+h)/t₁.................................................................. (1)

Substitute the following values into equation (1):

P₁ = 40(2+1)/2

P₁ = 20(3) (3)

P₁ = 60 W.

Regarding the second person,

P₂ = W(L+h)/t₂..................................................................... (2)

Fill in the blanks in equation (2) as follows:

P₂ = 40(2+1)/4

P₂ = 10*(3) *3)

P₂ = 30 W

Obtaining the difference in power as

P = P₁ - P₂

P = 60-30

P = 30 W

As a result, we can conclude that the difference in power for two people carrying the boxes up the ramp is 30 W.

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The net force on particle q₃ is approximately 2576.08 N.

To calculate the net force on particle q₃, we need to consider the forces exerted on it by particles q₁ and q₂ due to their electrostatic interactions.

The electrostatic force between two charged particles can be determined using Coulomb's law, which states that the force between two charges is directly proportional to the product of their charges and inversely proportional to the square of the distance between them. Mathematically, the formula for the electrostatic force (F) is:

F = (k * |q₁ * q₂|) / r²

Where k is the electrostatic constant (k ≈ 8.99 × 10^9 N m²/C²), q₁ and q₂ are the charges of particles q₁ and q₂, and r is the distance between them.

First, let's calculate the force between q₁ and q₂:

F₁₂ = (8.99 × 10^9 N m²/C² * |-75.8 μC * 90.6 μC|) / (0.876 m)²

Plugging in the values:

F₁₂ ≈ (8.99 × 10^9 N m²/C² * 6.87508 μC²) / (0.876 m)²

≈ 563.78 N

Next, let's calculate the force between q₂ and q₃:

F₂₃ = (8.99 × 10^9 N m²/C² * |90.6 μC * -84.2 μC|) / (0.432 m)²

Plugging in the values

F₂₃ ≈ (8.99 × 10^9 N m²/C² * 7.62012 μC²) / (0.432 m)²

≈ 3139.86 N

To find the net force on q₃, we need to subtract the force F₁₂ from F₂₃:

Net Force = F₂₃ - F₁₂

= 3139.86 N - 563.78 N

≈ 2576.08 N

Therefore, the net force on particle q₃ is approximately 2576.08 N.

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The turning effect of force used in cycling. Hence, option (c) is correct.

The moment is the term for turning effect of a force. It is the result of multiplying the force by the perpendicular distance from the force's line of action to the pivot point or location where the object will turn.

If a body that is being affected by a net external force is allowed to revolve around a pivot, the body will typically turn in the force's direction.

When a cycle paddled, force is applied for revolving it. That is why, the turning effect of force used in cycling.

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Answer:

Explanation:

average speed = 90 km / hr

Let the total distance be 2 d .

time required to cover the time = 2 d / 90

time taken   to cover distance d at 50 km /h = d / 50

time required to cover the  nd half = 2 d / 90 -  d / 50

.02222 d  - .02 d = .002222 d

speed required = d/2 / .002222d

1 / 2 x .002222

= 225 km /h .

The resulting kinetic energy will total 1*102 J.

The energy of motion, represented by a moving object or subatomic particle, is known as kinetic energy. Kinetic energy is present in every particle and moving object. Kinetic energy can be seen in a person walking, a flying baseball, a cookie falling from a table, or a charged particle in an electric field.

F avg = 2.0 * 10⁴  N average force on the ball

The distance over which the bat stays in contact with the ball is d = 5.0 * 10⁻³ m.

Now, the bat's kinetic energy can be calculated as follows:

K. E . = work done by a typical force

= F avg*d

= ( 2. 0*10⁴ ) x ( 5.0 X 10⁻³ ) J

= 10.0 x 10¹ J

= 1.0 x 10² J is acquired.

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Answer:

40g

Explanation:

Mass = density x volume

= 2 x 20

= 40g

Answer:

m =  V × ρ

=  20 milliliter × 2 gram/cubic meter

=  2.0E-5 cubic meter × 2 gram/cubic meter

=  4.0E-5 gram

=  4.0E-8 kilogram

Explanation:

The density of a material, typically denoted using the Greek symbol ρ, is defined as its mass per unit volume.

ρ =    

m  

V

           where:

ρ is the density

m is the mass

V is the volume

The calculation of density is quite straightforward. However, it is important to pay special attention to the units used for density calculations. There are many different ways to express density, and not using or converting into the proper units will result in an incorrect value. It is useful to carefully write out whatever values are being worked with, including units, and perform dimensional analysis to ensure that the final result has units of mass  volume. Note that density is also affected by pressure and temperature.

Answer:

DMs are not accessible anymore. I assume Zuka is a staff member? the only way to talk to a staff member anymore is to report something, but even then, the probably won't even look at what they're deleting :/

May I have brainliest please? :)

Answer:

dry ice, air fresheners, polar evaporation, arsenic treatment

Answer:

There are antiviral medicines to treat some viral infections. Vaccines can help prevent you from getting many viral diseases.