An inductor is connected to a 20.0 Hz power supply that produces a 60.0 V rms voltage. What inductance is needed to keep the maximum current in the circuit below 85.0 mA

The phrase "like dissolves like" can be described as the compounds which have similar nature dissolve in each other that is polar dissolves polar and non-polar dissolves non-polar molecules.

Polarity is the separation of electric charge which is leading to a molecule or the chemical groups which are having an electric dipole moment, with a negatively charged end and a positively charged end as well. Polar molecules are the molecules which must contain one or more polar bonds which occur due to a difference in the electronegativities between the bonded atoms of the molecule.

A simple way to predict the compounds which will dissolve in other compounds is the phrase of the compound such as "like dissolves like". This means that the polar compounds dissolve in polar compounds, and the nonpolar compounds dissolve in nonpolar compounds, however, the polar and nonpolar molecules do not dissolve in each other.

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The initial velocity is 24.9 m/s

The parameters given in the question are as follows;

Final velocity= -4.5 m/s

Time= 3 seconds

acceleration= -9.8

initial velocity= ?

The formula that can be used to calculate the initial velocity is

v= u + at

-4.5= u + (-9.8)(3)

-4.5= u + (-29.4)

-4.5= u - 29.4

u= -4.5+29.4

u= 24.9

Hence the initial velocity is 24.9 m/s

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Answer:

initial velocity is 24.9 m/s

Explanation:

No, the sun cannot explain global warming. Global warming is a phenomenon in which the temperature of the Earth's surface and atmosphere is rising continuously due to human activities such as deforestation, burning of fossil fuels, and industrialization.

This increase in temperature cannot be explained only by an increase in solar radiation.There are several factors which contribute to global warming, including greenhouse gases such as carbon dioxide, methane, and water vapor. These gases trap heat in the Earth's atmosphere, which causes the planet's temperature to rise. The sun's radiation does contribute to global warming, but it is not the main cause.

i) To calculate the increase in solar radiation that would cause the Earth to warm up by 1 K, we can use the following formula:ΔS = ΔT / αWhere ΔS is the increase in solar constant, ΔT is the increase in temperature, and α is the Earth's albedo (reflectivity).α = 0.30 is the standard value used for the Earth's albedo.ΔS = ΔT / αΔS = 1 K / 0.30ΔS = 3.33 W/m2So, to explain the increase in temperature of 1 K over the last hundred years, the solar constant would need to increase by 3.33 W/m2.

ii) The observed fluctuation of the solar constant over the past 400 years has been around 0.1% to 0.2%. This is much smaller than the 3.33 W/m2 required to explain the increase in temperature of 1 K over the last hundred years. Therefore, it is unlikely that the sun is the main cause of global warming.

The sun cannot explain global warming. While the sun's radiation does contribute to global warming, it is not the main cause. The main cause of global warming is human activities, particularly the burning of fossil fuels, which release large amounts of greenhouse gases into the atmosphere.

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Explanation:

1A. The visible light portion of the electromagnetic spectrum shows the rainbow of colors, with violet and blue having shorter wavelengths, and therefore higher energy. At the other end of the spectrum toward red, the wavelengths are longer and have lower energy.

so its option 2

2A. Atom and molecules

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The water takes approximately 1.98 hours to fall a distance of 0.250d from its highest level.

In simple harmonic motion, the displacement from the mean position can be expressed as x(t) = A * cos(ωt + φ), where A is the amplitude, ω is the angular frequency, t is time, and φ is the phase angle.

For the given problem, A = d/2 and the period T = 11.9 hours.

Angular frequency ω = 2π/T. When x(t) = 0.250d, we can solve the equation for t.

After substituting the given values and solving for t, we find that it takes approximately 1.98 hours for the water to fall 0.250d from its highest level.

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Under the given scenario, the people in Hawaii would have approximately 47 minutes (0.78 x 60 minutes) from observing the unusual sea level decrease to when the tsunami reaches their location.

A tsunami of wavelength 225km and velocity 575km/h travels across the Pacific Ocean. As it approaches Hawaii, people observe an unusual decrease in sea level in the harbors. To determine how much time people have to run to safety, we need to calculate the time it takes for the tsunami to reach Hawaii.

We can use the formula: time = distance/velocity.

In this case, the distance is unknown, but we can use the wavelength as a proxy. Since the wavelength is 225km, we can assume that the distance between each crest and trough of the wave is 225km. Therefore, the distance traveled by the wave in one wavelength is 2 x 225km = 450km.

Now we can calculate the time it takes for the wave to travel this distance using the given velocity of 575km/h:

time = distance/velocity
time = 450km / 575km/h
time = 0.78 hours

So the people in Hawaii would have approximately 47 minutes (0.78 x 60 minutes) from observing the unusual sea level decrease to when the tsunami reaches their location. It's important to note that this is just an estimate and the actual time may vary depending on factors such as the ocean's depth and the coastline's shape.

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Answer:

The type of energy is potential energy

Answer:

A distance-time graph shows how far an object has travelled in a given time. It is a simple line graph that denotes distance versus time findings on the graph. Distance is plotted on the Y-axis. Time is plotted on the X-axis

Explanation:

By using uniform motion, the average force is 3106.89 N.

We need to know about the uniform motion to solve this problem. The uniform motion is an object's motion under acceleration. It should follow the rule

vt = vo + a . t

vt² = vo² + 2a . s

s = vo . t + 1/2 . a . t²

where vt is final velocity, vo is initial velocity, a is acceleration, t is time and s is displacement.

From the question above, we know that

vo = 0 m/s

vt = 10.6 m/s

m = 0.85 kg

t = 2.9 ms = 2.9 x 10¯³ second

Find the acceleration by using the first equation

vt = vo + a . t

10.6 = 0 + a. 2.9 x 10¯³

a = 3655.17 m/s²

Find the average force

F = m . a

F = 0.85 . 3655.17

F = 3106.89 N

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Answer:

Explanation:

it seems white because once it falls or hits the bottom bubbles are created and it makes it look white

Answer:

However, when water flows rapidly, its flow becomes turbulent. This sort of aeration creates tons of small bubbles in water, which are eventually responsible for the white color of waterfalls.

Paris experiences its warmest weather in July, with an average high temperature of 76°F and low temperature of 58°F. This month in Paris, the average temperature will be in degrees Celsius.

How can you determine the typical temperature?

By adding together the highest and lowest instantaneous temperatures over the course of a 24-hour period and dividing by two, the weather and climate community has traditionally determined the observed daily mean temperature.

What is the global average temperature?

About 57 degrees Fahrenheit is the standard temperature on Earth (13.9 degrees Celsius). That was the average temperature throughout the 20th century, as determined by measurements made over land and water, day and night, according to climate data from the National Oceanic and Atmospheric Administration (NOAA) (opens in new tab).

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Answer:

comets

Explanation:

Comets have a tail unlike any other answer choice and it has a core of ice and dust. Many think comets do not orbit the sun, but they do. They orbit in a eliptical orbit, so they take a long time to orbit back to the sun.

Answer:

10 m/s

Explanation:

u of cue ball = 10 m/s

u of eight ball=0m/s

m of cue ball =0.16 kg

m of eight ball =0.16 kg

According to law of conservation of momentum

Momentum before collision = Momentum after collision

so

( m of cue ball X velocity of cue ball) + ( m of eight ball X velocity of eight ball)= (m of cue ball X velocity of cue ball after collision )+( m of eight ball X velocity of eight ball after collision)

thus

(0.16 X 10)+(.016 X 0)= (0.16 X 0)+ ( 0.16 X velocity of eight ball after collision)

1.6= 0.16 X velocity of eight ball after collision

1.6÷0.16= velocity of ball after collision

10= velocity of eight ball after collision

Let r be the distance between the man and point Q. He applies a torque of

(r i ) × ((-800 N) j ) = ((-800 N) r ) k

pointing "into the page" with magnitude (800 N) r.

Meanwhile, the rope applies a torque of

((3.0 m) i ) × ((500 N) j ) = (1500 N•m) k

pointing out of the "page" with mag. 1500 N•m

The beam is held in place in a horizontal position, so the torques cancel and

(800 N) r = 1500 N•m

r = (1500 N•m)/(800 N) = 1.875 m ≈ 1.9 m

Answer:

Explanation:substitute the values for equation PE=m/vg×

Answer:

7500 Newtons

Explanation:

Mass of the sportscar= 1500 kg

Acceleration of the sportscar= 5m/s^2

Hence, let the Force acting on it be F

\(We\ know\ that,\\Force=Mass*Acceleration\\F=ma\\\\Here,\\F=1500*5\\=7500 kg m/s^2\ or\ 7500\ Newtons\)

Answer:

11760 J

Explanation:

cuz potential engery is PE = MHG

SO 80×15×9.8= 11760 J

Answer:

11769j

Explanation:

here,

mass(m)=80 kg

height(h)=15m

acceleration due to gravity(g)=9.8m/s^2

now,

potential energy = m×g×h

= 80×9.8×15

= 11760j

When weighing chemicals on a balance, the term "tare" is used. Pressing the tare button enables you to record only the weight of the substance being measured, not the weight of the container it is being measured in.

Weighing by difference is automatically accomplished by tarring a balance. When a balance is tared with an object on the balance pan, the weight of the object is automatically subtracted from each reading up until the balance is re-tared or zeroed.

Testing a balance is crucial because you want an accurate result when you weigh an object. The calculations could all be off if a balance is not set to zero.

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The speed of the bottle when recoiling if it could move freely is 0.092 m/s.

The problem isn't complete. A similar problem is in the attachment. When we free the cork from the bottle, the cork and the bottle have a collision. According to the law of conservation of momentum, the momentum before and after the collision is the same.

p = p'

m₁ v₁ + m₂ v₂ = m₁ v₁' + m₂ v₂'

m₁ v₁ + m₂ v₂ = m₁ v₁' + m₂ v₂'

(0.0075 × 22) + (1.8 × 0) = (0.0075 × 0) + (1.8 × v₂')

0.165 + 0 = 0 + 1.8v₂'

1.8v₂' = 0.165

v₂' = 0.165 ÷ 1.8

v₂' = 0.092 m/s

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At time t, the ring experiences a magnetic force due to the interaction of the magnetic field with the current induced in the ring by Faraday's law of induction.

A magnetic field is a region of space where a magnetic force is present. A magnetic force is a force that acts on objects that have a magnetic field. This force can be felt when magnets are brought near each other, as the magnetic fields interact with each other. Magnetic fields are created by moving electric charges, and are found around electric motors, generators, wires, and magnets.

The force is directed to the left, perpendicular to the plane of the ring, and is equal to B x aI, where B is the magnitude of the magnetic field, a is the area of the ring, and I is the induced current. The induced current is equal to -(dΦ/dt)R, where Φ is the magnetic flux through the ring and R is the resistance of the ring. Therefore, the resultant force on the ring at time t is equal to B x a(-dΦ/dt)R.

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The escape speed from the asteroid is approximately 1,414.98 m/s.

To solve this problem, we can use the concepts of gravitational force and centripetal force.

Let's first calculate the speed of the satellite orbiting 5.30 km above the asteroid's surface.

Given:

Mass of the asteroid (m) = \(1.30x10^76 kg\)

Radius of the asteroid (r) = 10.0 km = 10,000 meters

Distance above the surface (h) = 5.30 km = 5,300 meters

We can calculate the speed of the satellite using the formula for orbital speed:

v = √(GM/r)

where G is the gravitational constant and M is the mass of the asteroid.

Plugging in the values, we get:

v = √(6.67430x\(10^-11\) \(m^3 kg^-1 s^-2\) * 1.30x\(10^76 kg\) / (10,000 m + 5,300 m))

Calculating this, we find:

v ≈ 4,021.78 m/s

So, the speed of the satellite orbiting 5.30 km above the asteroid's surface is approximately 4,021.78 m/s.

Now, let's move on to calculating the escape speed from the asteroid.

The escape speed is the minimum speed required for an object to escape the gravitational pull of the asteroid. It can be calculated using the formula:

vesc = √(2GM/r)

Using the same values for G, M, and r, we can calculate the escape speed:

vesc = \(√(2 * 6.67430x10^-11 m^3 kg^-1 s^-2 * 1.30x10^76 kg / 10,000 m)\)

Calculating this, we find:

vesc ≈ 1,414.98 m/s

Therefore, the escape speed from the asteroid is approximately 1,414.98 m/s.

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Main answer- C (matter can be converted into energy)

supporting answer-Nuclear fission is a reaction in which particles or atoms split into two smaller and lighter nuclei, which can then be converted into energy.

final answer -hence final answer is C

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Answer:

18 degrees Celsius is equivalent to 64.4 degrees Fahrenheit.

Explanation:

To convert Celsius to Fahrenheit by using the formula

: (°C x 1.8) + 32 = °F

18 °C = 64.4 °F . Fahrenheit is a temperature scale created by German physicist Daniel Gabriel Fahrenheit in 1724.

What is Fahrenheit?

On this scale, temperature is measured by the expansion of a liquid, specifically a mercury-in-glass thermometer. The scale is based on three fixed points: the freezing point of pure water is defined as 32°F and the boiling point of pure water is defined as 212°F. The third point, 96°F, was determined to be body temperature. On the Fahrenheit scale, the difference between the freezing point and the boiling point of water is 180°F. There are 180 intervals between the two fixed points, and each interval is one degree.

The degree Fahrenheit (°F) is the most commonly used unit of temperature in the United States. 18 x (9/5) + 32 = 64.4°F

Therefore,  18 °C = 64.4 °F

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To determine the magnitude of the acceleration of the motorcycle, we need to know the force of friction acting on the wheels. The force of friction is equal to the coefficient of friction multiplied by the normal force acting on the wheels, which is equal to the weight of the motorcycle and rider. The weight of the motorcycle and rider can be calculated by multiplying the mass by the acceleration due to gravity (9.8 m/s^2). So, the force of friction acting on the wheels of the motorcycle is equal to 0.88 * 196 kg * 9.8 m/s^2 = 1661.28 N.

The acceleration of the motorcycle is equal to the force of friction divided by the mass of the motorcycle and rider. So, the acceleration of the motorcycle is equal to 1661.28 N / 196 kg = 8.45 m/s^2.

Answer:  8.45 m/s^2

Answer:

--> Steering wheel applied by the car driver.

-->Opening and closing of a water tap.

-->Winding the spring of an alarm clock.

-->Unlocking the locker by using a key.

-->Opening and closing of a cap of a water bottle, or jug.

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The statement is True because When creating a flag-controlled loop, the loop condition is set by initializing the flag variable.

An entry controlled loop is one where the test condition is verified before the body of the loop is carried out. For loop and while loop are examples of entry controlled loops that do not run if the testing condition is false.

The microcontroller, the torque device (brake, clutch, or drive), the tension major instrument, and the measuring signal are the four main components of a closed-loop tension control system. The load cell or dancer arm provides the controller with immediate material measurement feedback.

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The Second Law of Thermodynamics states that the total entropy of an isolated system can only increase over time.

Thermodynamics is the branch of physics that deals with the relationships between heat, work, temperature and energy. It is the study of how energy is converted from one form to another and how it is used to do work. Thermodynamics is concerned with the transfer of energy from one object or system to another and how that energy can be transformed or converted into different forms. It also explores the relationships between entropy, temperature, and energy. Thermodynamics can also be used to predict how systems will behave when exposed to a given amount of energy. Thermodynamics is a powerful tool used to understand the behavior of natural systems and to develop efficient technologies.

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