An electric ceiling fan is rotating about a fixed axis with an initial angular velocity magnitude of 0.280 . The magnitude of the angular acceleration is 0.912 . Both the the angular velocity and angular accleration vectors are in the same direction. The electric ceiling fan blades form a circle of diameter 0.710 .
Compute the fan's angular velocity magnitude after time 0.198 has passed.
Express your answer numerically in revolutions per second.
Compute the fan's angular velocity magnitude after time 0.198 has passed.
Express your answer numerically in revolutions per second.
Through how many revolutions has the blade turned in the time interval 0.198?
Express the number of revolutions numerically.
What is the tangential speed of a point on the tip of the blade at time = 0.198 ?
Express your answer numerically in meters per second.
What is the magnitude of the resultant acceleration of a point on the tip of the blade at time = 0.198 ?
Express the acceleration numerically in meters per second squared.

The matter is conserved during a physical change, find a mass of a piece of ice. Let the ice melt and then find the mass of the liquid water.  Hence, option 2 is correct.

One that has no interactions with its environment is referred to as an isolated system. Thus, notwithstanding any changes or chemical reactions that take place in that isolated system, the mass will always remain the same; even though the final state may be different from the initial one, there can never be more or less mass than there was before the change or reaction.

The development of chemistry was greatly aided by the law of conservation of mass, which made it clear to researchers that compounds, despite appearances, do not actually vanish as a result of reactions but rather change into another material of equal mass.

Hence, it concludes that option 2 is correct.

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2. Find the mass of a piece of ice. Let the ice melt. Find the mass of the liquid water.

ur welcum

The part of the unconscious mind which is derived from ancestral memory and experience is called Collective Unconscious .The correct answer is d. Collective Unconscious.

The term "Collective Unconscious" was coined by Swiss psychiatrist Carl Jung to describe the part of the unconscious mind that contains inherited experiences and memories shared by all human beings.

According to Jung, the collective unconscious is a reservoir of knowledge and archetypal patterns that are universal and common to all cultures.

Unlike personal unconscious, which consists of an individual's unique experiences and memories, the collective unconscious represents a deeper level of consciousness that transcends personal boundaries. It contains instinctual and archetypal images, symbols, and motifs that arise from the collective experiences of our ancestors.

Jung believed that the collective unconscious influences our thoughts, emotions, and behaviors, often manifesting in dreams, myths, and religious symbols. It is through the collective unconscious that we tap into universal themes, such as the hero's journey, the wise old man, or the anima and animus.

By accessing the collective unconscious, individuals can gain insights into their own lives and connect with the broader human experience. It serves as a source of creativity, wisdom, and spiritual guidance, shaping our understanding of the world and ourselves.

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Answer:

March 21 = Vernal Equinox

Artic = North Pole

December 21 = Winter Solstice

Meridians = Longitude

September 23 = Autumnal Equinox

Greenwich, England = Prime Meridian

Antarctic = South Pole

Marianas Trench = Lowest point on earth

Parallels = Latitude

International Date Line = 180th Meridian

Explanation:

Answer:

W i think but i think it's W

Explanation:

Answer:

d and f

Explanation:

(ahhhggg ignore i dont remember how to delete answers)

No. In my opinion, they were not used creatively. They were used speciously, disingenuously, and unimaginatively.

As always, others are free to disagree.

The amino acid tryptophan is essential for the control of the trp operon in bacteria. A set of genes known as the trp operon is in charge of creating the tryptophan biosynthesis enzymes.

An essential amino acid called tryptophan is crucial for a variety of bodily processes. It serves as a precursor for the manufacture of the neurotransmitters serotonin and melatonin, which are crucial for controlling mood, sleep, and hunger. The creation of new proteins depends on tryptophan, another essential component of proteins. Tryptophan has also been demonstrated to have immune-modulating characteristics, which may help prevent some cancers. Eggs, fish, chicken, nuts, and other foods all contain tryptophan, which is also available as a dietary supplement.

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Answer:

The one with the white circle around it

Explanation:

I

Answer:

50°

Explanation:

Projectiles launched at complementary angles have the same range.

Answer:

Explanation:

The wavelength of a wave can be found by using the formula

\(\lambda = \frac{c}{f} \\\)

where

c is the speed of the wave

f is the frequency

From the question

c = 500 m/s

f = 25 Hz

We have

\( \lambda = \frac{500}{25} \\ = 20\)

We have the final answer as

Hope this helps you

Answer:

Yes, his claim is valid

Explanation:

mechanical advantage of an inclined plane = IMA = L/h

By lengthening L, you increase the IMA.

Also, IMA = Output force / Input force

Input force is less on a "shallow" inclined plane.  Work = Fd, so if F is lower, Work is lower.  The height (d) doesn't change, just the length of the ramp and the angle of the ramp.  

Answer:

1.25m/s

Explanation:

Velocity is defined as the change of displacement with respect to time. Mathematically, velocity = displacement/time

Given displacement = 3km and time = 40minutes

Converting km to meters and minuetes to seconds;

Since 1 km = 1000m

3 km = (3*1000)m

3 km = 3000m

Also 1minute = 60seconds

40 minutes = 60*40 = 2400seconds

velocity = displacement/time

Velocity (in m/s) = 3000/2400

Velocity (in m/s) = 30/24

Velocity (in m/s) = 5/4

Velocity (in m/s) = 1.25m/s

Hence, the average velocity of he hiker is 1.25m/s

The moment of inertia of the 2.90 kg, 30.0-cm-diameter disk for rotation about an axis through the center is 0.1969 kg \(m^2\).

The moment of inertia of a disk rotating about an axis through its center can be calculated using the formula:

I = (1/2) * M * \(R^2\)

where I is the moment of inertia, M is the mass of the disk, and R is the radius of the disk.

In this case, the mass of the disk is M = 2.90 kg, and the radius of the disk is half of its diameter, R = 0.30 m / 2 = 0.15 m. Substituting these values into the formula, we get:

I = (1/2) * 2.90 kg * (0.15 \(m)^2\)

I = 0.1969 kg \(m^2\)

Therefore, the moment of inertia of the 2.90 kg, 30.0-cm-diameter disk for rotation about an axis through the center is 0.1969 kg \(m^2.\)

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In this case, the series RL circuit is fairly efficient, as the power factor is close to 1.

The given series RL circuit contains a resistor of 50 Ω and an inductor of 10 mH. It is connected to a 100 V (peak) voltage source. The frequency of the input is 250 Hz. We need to find the power factor of this circuit.

The first step is to find the impedance (Z) of the circuit. The impedance of a series RL circuit is given by:

Z = √(R² + Xl²)

Where R is the resistance and Xl is the inductive reactance.

The formula for inductive reactance is:

Xl = 2πfL

Where f is the frequency and L is the inductance.

Substituting the given values, we get:

Xl = 2π × 250 × \(10^{-3}\) = 1.57 ΩZ = √(50² + 1.57²) = 50.18 Ω

Now,

The power factor (PF) of a circuit is given by:

PF = cosφ

Where φ is the phase angle between the voltage and current.

Since this is a series RL circuit, the current lags the voltage by an angle φ, which is given by:

tanφ = Xl/Rφ = \(tan^{-1}\)(Xl/R)φ = \(tan^{-1}\)(1.57/50) = 1.79°

The power factor is:

PF = cos(1.79°) = 0.9985 (approx)

Therefore, the power factor of the given series RL circuit is approximately 0.9985.

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Answer:

Yes.

Explanation:

There is potential energy in your leg that once comes in contact with the ball turns into kinetic energy.

In the corresponding circumstances, 750 N and 250 N; Method (b)Mass of the block, m = 25 kg

Mass of the man, M = 50 kg

Acceleration due to gravity, g = 10 m / s²

F = 25 × 10 = 250 N is the force exerted on the block.

The man's weight is W = 50 ×  10 = 500 N.

Example (a): When the man directly raises the block

In this instance, the man pushes up by exerting force. His outward weight rises as a result.

The man's movement on the floor equals 250 + 500 = 750 N.

Scenario (b): When a pulley is used by the man to elevate the block

In this instance, the man exerts pressure downward. His apparent weight is reduced as a result.

The man's movement on the floor equals 500 - 250 = 250 N.

If a normal force of 700 N can cause the floor to give way, the guy should use the second method to easily raise the block while using less force.

The complete question is:

A block of mass 25 kg is raised by a 50 kg man in two different ways as shown in figure What is the action on the floor by the man in the two cases? If the floor yields to a normal force of 700 N, which mode should the man adopt to lift the block without the floor yielding.

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Answer:

Verb. Load with too great a burden or cargo.

"Both boats were overloaded and low in the water"

Noun. An excessive load or amount.

"an overload of stress"

Explanation:

Similar words are strain, excess, and overburden.

Have a good day and stay safe!

Answer:

140km/h

Explanation:

Average speed= Distance/Time

= 210/1.5

= 140 I'm/h

Answer:

a) Volt

Explanation:

The standard metric unit on electric potential difference is the volt.

answer

all of the above

explanation

as we know that the si unit of potential difference is volt

which is equal to j/c and j/c is equal to j/a.s so the correct answer is all of the above

Answer:

it is very hard but i am trying to help you.

Explanation:

The maximum allowable percentage change is 3.8% in the string tension

Length of the string lg as given in the question = 0.350m

frequency of concert G f_g as given in the question= 392 Hz

The maximum allowable percentage change in string tension for this frequency remains constant and the given allowed interval of the change of the length

Formulating the equation and solving:

Let f be the frequency, T be the tension and U be the length of the wave

f = 1/2L*\(\sqrt{} T/U\)

df = 1/2\(\sqrt{} U\)*\((1/2\sqrt{}T- Ldt - dL\sqrt{}T)/L^{2}\)

df = 0

dT/T = 2*(dL/L)

= 2*0.6/31.2

dT/T = 0.038

Percentage change in string tension 3.8%

The maximum percentage change in string tension is 3.8%

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The required speed of the the can when the spring is stretches is calculated to be 2.39 m/s.

The magnitude of acceleration of the block is calculated to be 4.12 m/s².

The force constant of the spring is given as k = 76 N/m.

Mass of the beans is given as 5 kg.

The constant horizontal force applied is given as 51 N.

The stretching in the spring is given as 0.4 m.

The expression to calculate speed of the block for the stretch in the spring is,

F x - 1/2 k x² = 1/2 m v²

v = √2 (F x - 1/2 k x²)/m

Putting all the values, we have,

v = √2 (51× 0.4 - 1/2× 76 × (0.4)²)/5 = √2 (20.4 - 6.08)/5 = 2.39 m/s.

Thus, the speed of the can for stretch in the spring is 2.39 m/s.

The relation to calculate the magnitude of acceleration of the block is,

a = (F - k x)/m = (51 - 76× 0.4)/5 = 4.12 m/s²

Thus, the magnitude of acceleration is calculated to be 4.12 m/s².

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Answer:

Fetus

Explanation:

the outsiders I got nuggets out of the elder and I get to make it in and I got I got

Answer:

Basically, the main risk is cardiac arrest, caused by the electric current interfering with the normal operation of the heart muscle. Other possible damages are burns due to the electric energy vaporizing the water inside the cells, and nerve damage caused by excessive current through the nerves.

The main hazards of working with electricity are:

Explanation:

The drift speed of the electrons can be found using the equation:

Vd = (I/nAe)1/2

Where, Vd is the drift speed of the electrons, I is the current, n is the number of free electrons, A is the cross-sectional area, and e is the charge of an electron.

To solve for the drift speed, we need to first calculate n, which is the number of free electrons. To do this, we use the density of aluminum and its atomic mass, which is 27. We can use the following equation:

n = (ρA/MA)1/3 × NA

Where, ρA is the density of aluminum, MA is the atomic mass of aluminum, and NA is Avogadro’s number.

Plugging in the given values, we get:

n = (2.7 g/cm3 × 2.6 × 10-6 m2)1/3 × 6.02 × 1023 = 2.47 × 1021

Now we can plug in all the values into the drift speed equation:

Vd = (3 A / 2.47 × 1021 e-1)1/2 = 1.03 × 106 m/s

Therefore, the drift speed of the electrons in the wire is 1.03 × 106 m/s.

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The event horizon of a black hole is the boundary beyond which nothing, not even light, can escape its gravitational pull. The size of the event horizon is directly related to the mass of the black hole.

Specifically, the Schwarzschild radius formula can be used to determine the size of the event horizon, which is given by Rs = 2GM/c^2, where Rs is the Schwarzschild radius (event horizon radius), G is the gravitational constant, M is the mass of the black hole, and c is the speed of light. For a 10Msun black hole, the event horizon will be larger than that of a 1Msun black hole. This is because the mass term (M) in the formula directly affects the event horizon size. When comparing a 10Msun black hole to a 1Msun black hole, the 10Msun black hole has 10 times the mass, which will result in a correspondingly larger event horizon. The escape velocity for both black holes is indeed the speed of light, but their event horizons will differ in size due to the variation in mass.

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Answer:

ACCELERATING OR DECELERATING

Explanation:

I'M NOT SURE