171) a force of 16.88 n is applied tangentially to a wheel of radius 0.340 m and gives rise to an angular 171) acceleration of 1.20 rad/s2. calculate the rotational inertia of the wheel.

Answer: I would stop been shy, so I could be able to say what I think to others.  I would be nicer to others, behave better. I would share more with others.

Correlation is a measure of the linear relationship between two variables. It indicates the degree to which a change in one variable is associated with a change in the other variable.

Correlation does not necessarily imply causation, meaning that just because two variables are correlated does not mean that one variable caused the other to change.

There are a few reasons for this. First, correlation does not indicate the direction of the relationship. For example, two variables could be positively correlated (increase together) or negatively correlated (one increases while the other decreases), but correlation alone does not indicate which is the case.

Second, there may be third variables that are affecting both of the variables being correlated. For example, a study might find that ice cream sales are positively correlated with shark attacks.

However, this does not mean that eating ice cream causes people to be attacked by sharks, or that sharks attack more when people are eating ice cream. Instead, the third variable is likely temperature.

On hot days, people are more likely to buy ice cream and more likely to go swimming, which leads to more shark attacks.

In summary, correlation does not necessarily imply causation and other methods, such as experiments, are needed to establish causal relationships.

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Answer:

the inertia provides the tendency to maintain speed and keep moving

Answer: D. thousands to millions of years

Explanation: Stages within a rock's cycle cannot happen quickly. The formation and deterioration can take thousands to millions of years to occur.

I hope this helps!

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Billy jumps upward with a velocity of 4.2 m/s off a 6m high diving board.  . Billy will take 0.43 sec  to hit the water

The branch of physics that defines motion with respect to space and time, ignoring the cause of that motion, is known as kinematics.

using equation of kinematics

v = u + g*t

sign convention

positive y direction (upward) = +

negative y direction ( downward )  = -

v = u - g*t

0 = 4.2 - ( 9.8 * t )

t = 4.2 / 9.8

t = 0.43 sec

Billy will take 0.43 sec  to hit the water

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Answer:

sun is the main source while the other object reflect light on the sun

Explanation:

nasa libro yans

(a) The initial temperature is 373.95 K.

(b) The final temperature is 546.15 K.

(c) The total internal energy change of the fluid during this process is 515.4 kJ.

(d) The process can be represented as an isochoric heating process on the P-v diagram and as an isobaric expansion process on the T-v diagram.

(a) To find the initial temperature, we can use the saturated steam tables. At a pressure of 200 kPa, the corresponding saturation temperature is 373.95 K.

(b) Since the volume doubles, the process is an isochoric (constant volume) heating process. Using the ideal gas law, we can determine the final temperature. The initial and final volumes are related by the equation V_final = 2V_initial. Since the mass remains constant, the specific volume (v) is inversely proportional to the density (ρ). Therefore, ρ_final = ρ_initial/2. Using the ideal gas law, we can calculate the final temperature to be 546.15 K.

(c) The total internal energy change can be calculated using the equation ΔU = mC_vΔT, where m is the mass of the fluid and C_v is the specific heat at constant volume. Given the mass as 0.5 kg, the specific heat of water at constant volume, and the temperature change, we can find that the total internal energy change is 515.4 kJ.

(d) On the P-v diagram, the process is represented as a vertical line at 200 kPa, indicating constant pressure. On the T-v diagram, the process is shown as an upward-sloping line, indicating an isobaric expansion process. The initial state is represented as a point on the left, and the final state is represented as a point on the right. The path between the initial and final states is a straight line connecting these two points.

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Answer:

1 lb. is 453.592 grams

Explanation:

1lb is 453.592 grams

Gravity is a fundamental, universal force that pulls objects toward Earth's center. It increases with mass and decreases with distance. Measured in Newtons, it affects all objects.

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The correct question would be as

Which statement describes gravity? Select three options. There is no defined unit of measurement for gravity.

Gravity is the force that pulls objects toward Earth’s center.

Objects that have a small mass will have no gravitational pull.

Gravitational pull between two objects increases as the mass of one increases.

Gravitational pull decreases when the distance between two objects increases

Answer:Yes that is correct

Explanation:

Answer:

yes that is correct.

Answer:the answer is 5000 meters

Explanation: because it travels 100m per seconds.

we have to multiply meters with seconds.    m multiply s

A sound at 160 decibels is considered loud whereas a sound at 20 decibels is considered soft.

The intensity or volume of sound is measured in unit called decibel or dB. For normal conversation, the intensity of sound is 60 decibel. Loud noise for very long time can damage the ears and very loud sound can instantly harm the ear, causing hearing problems. Sound till the range of 70 decibel is considered safe for hearing. The intensity of sound at 120 decibel causes immediate hearing issues.

Sources of loud noise include crackers, Very high volume of television, radio or earphones. The loud sound can cause damage to cells and membranes in the ears. This damage is irreversible and hence leads to permanent hearing issues.

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(a) The free body diagram for representing all the forces acting on an object.

(b) The force Mr. Seifert is applying to the box to move it forward to the RIGHT is 105 N.

A free body diagram is a graphical illustration of all the forces acting on an object.

The force applied by Mr Seifert is calculated by applying Newton's second law of motion as follows;

F - Ff = ma

where;

The given parameters include;

mass of the cardboard = 40 kg

force of friction = 25 N

acceleration of the cardboard = 2 m/s²

The force applied by Mr Seifert is calculated as follows;

F = Ff + ma

F = 25 N  +    (40 kg x 2 m/s²)

F = 105 N

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Explanation:

Formula:

F*255.92778=K

83 F *255.92778=301.48k

therefore the answer is:

301.48K

Yes, PNS system causes more frequent depolarizations to the SA (Sinoatrial) node.

The PNS (Parasympathetic Nervous System) is responsible for decreasing the heart rate. It does so by releasing acetylcholine, which stimulates the M2 muscarinic receptors found in the SA node. When acetylcholine binds to M2 receptors, it opens potassium channels, leading to hyperpolarization of the SA node cells.As a result, the pacemaker potential threshold increases and requires more time to reach the threshold for depolarization, thus reducing the heart rate. Therefore, by decreasing the potassium ion permeability of the ECF, it slows the heart rate, resulting in fewer depolarizations in the SA node, causing a lower heart rate.

In summary, the parasympathetic nervous system (PNS) causes more frequent depolarizations to the SA node. The PNS slows down the heart rate, but this does not mean that the pacemaker potential is reduced. Instead, the pacemaker potential is hyperpolarized, increasing the threshold for depolarization. Thus, fewer action potentials reach the threshold, and heart rate is decreased. So, the decrease in potassium permeability in the ECF and an increase in the parasympathetic nervous system causes hyperpolarization of the SA node and increases the threshold for depolarization. This, in turn, leads to fewer depolarizations in the SA node, causing a slower heart rate.

Therefore, it can be concluded that the PNS system causes more frequent depolarizations to the SA node and decreases heart rate by increasing the threshold for depolarization, which is accomplished by hyperpolarizing the pacemaker potential.

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The minimum possible thickness of the film is 82.5 nm

The minimum possible thickness of the film can be calculated using the formula for constructive interference in thin films:

2nt = mλ

where n is the refractive index of the film, t is the thickness of the film, m is the order of the interference, and λ is the wavelength of the light.

In this case, we know that the film has a refractive index of 1.5 and is floating on water with a refractive index of 1.33. Therefore, the light will undergo a phase shift of π when it reflects off the top surface of the film, since the refractive index of the film is greater than that of the water.

For constructive interference to occur, the path difference between the reflected light and the incident light must be an integer multiple of the wavelength. This means that the thickness of the film must be such that the reflected light undergoes a phase shift of π and then travels an additional half-wavelength before interfering constructively with the incident light.

For the wavelength of 495 nm, the formula becomes:

2(1.5)t + λ/2 = mλ

Solving for t, we get:

t = (mλ - λ/2)/(2n)

We want to find the minimum possible thickness, which occurs when m = 1 (the first order of interference). Plugging in the values, we get:

t = (1 × 495 nm - 247.5 nm)/(2 × 1.5)

t = 82.5 nm

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The ideal gas equation can be changed to demonstrate that the pressure of a sample of gas is directly proportional to the amount of gas present, volume, and temperature being held constant: P=n(RTV)=n×const.

The pressure inside the object increases when medium is added to the newly created area. Because energy is being added during compression, the temperature of the medium may significantly rise or fall.

Therefore, compressing a medium is necessary to raise pressure. Compression reduces the volume of the medium that makes up a thing.

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The total distance covered by the bird when it flies to the finish line and back to the runner is 9.3 km.

The total total distance travelled by the bird in flying from the runner to the finish line and back to the runner is calculated as follows:

Initial distance from the runner to the finish line = 6.2 km

Time taken by the bird to reach the finish line from the initial position of the runner = 6.2/15 * 60 mins = 24.8 mins

Time it will take the runner to get to finish line = 6.2/5 * 60 = 74.4 mins

Distance traveled by the runner from L after 24.8 mins will be:

Distance traveled by the runner from L = 5 * 24.8/60

Distance traveled by the runner from L  = 2.07 km

Remaining distance to be covered = 6.2 - 2.07 = 4.13

The ratio of the speed of the bird and the runner = 1 : 3

Total ratio = 4

Distance covered by bird in returning = 3/4 * 4.13 = 3.1 km

Total distance covered by the bird = 6.2 + 3.1 km

Total distance covered by the bird = 9.3 km

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Tony's Arc Reactor serves as the power source for the Repulsors, which are located in the palms of the armor.Originally intended to stabilize the flight of the armor and add more agility.

Hydrogen is the gas utilized, and a sophisticated suit like Iron Man can easily extract it from the air by electrolysis. The water was condensed even as suit overpressurized ram air into form water, as well as the hydrogen gas is formed and sent right to the rocket boots.

The nuclear core which Tony Stark creates and implants in his heart to save his life also fuels all of his armor.In essence, it is a very energy-dense battery.

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The force exerted by the elevator on the man is 0N if a man weight is 800N.

We know very well for an elevator which is rising upward,its acceleration is given by the formula,

Net acceleration=g+a where g is the acceleration due to gravity and a is acceleration of elevator.

We know that g= 9.8m/sec² if we assume downward direction as positive direction, now we have given that value of a=-9.8m/sec².

Net acceleration is = 9.8 + (-9.8)=0m/sec²

Now, we know that according to newton second law of motion -. The acceleration of the body is straightforwardly relative to the net power following up on the body and conversely corresponding to the mass of the body. This really intends that as the power following up on an article is expanded, the speed increase of the item is expanded.

In other words,we have F=ma

where m is the mass of the body and a is the acceleration of the body.

We have a=0

So,F=m×0

=>F=0N

Hence, exerted force is 0N.

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a water wave has a frequency of 0.20 hz. 18 wavelengths will have passed a fixed point after 1.5 minutes.

To calculate the number of wavelengths that have passed a fixed point after a given time, we need to find the distance traveled by the wave and divide it by the wavelength.

First, we need to convert the time from minutes to seconds:

1.5 min = 90 sec

Next, we can find the distance traveled by the wave using the formula:

distance = velocity * time

where the velocity of a water wave is given by the equation:

velocity = frequency * wavelength

In this case, the frequency is 0.20 Hz and the wavelength can be calculated as follows:

wavelength = velocity / frequency

Substituting the values, we get:

wavelength = (0.20 Hz * velocity) / frequency = velocity / frequency

Therefore, the distance traveled by the wave can be calculated as:

distance = velocity * time = (0.20 Hz * wavelength) * 90 sec = 18 * wavelength

Finally, the number of wavelengths that have passed a fixed point after 1.5 minutes is calculated as:

number of wavelengths = distance / wavelength = 18 * wavelength / wavelength = 18

Therefore, 18 wavelengths will have passed a fixed point after 1.5 minutes.

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Answer:

3 × 10 to the power minus 6 milliseconds

When we convert 3 x 10⁻⁹ s into milliseconds it would be 3 x 10⁻⁶milliseconds

In positional notation, significant figures refer to the digits in a number that is trustworthy and required to denote the amount of something, also known as the significant digits, precision, or resolution.

If a number describing the result of a measurement (such as length, pressure, volume, or mass) includes more digits than the number of digits permitted by the measurement resolution, only the digits allowed by the measurement resolution can be significant figures.

As given in the problem we have to convert 3 x 10⁻⁹ s into milliseconds

1 second = 1×10³ milliseconds

3 x 10⁻⁹ seconds =  (3 x 10⁻⁹)  ×  (1×10³ )

                            = 3 x 10⁻⁶milliseconds

Thus, 3 x 10⁻⁹ s converted into milliseconds it would be 3 x 10⁻⁶ milliseconds

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The half-life of this isotope is approximately 7.3 days.

Radioactive decay is a random process in which the number of radioactive nuclei decreases over time. The half-life of an isotope is the time taken for half of the radioactive nuclei to decay.

The half-life of the isotope can be calculated using the formula:

T1/2 = (t ln 2) / ln(N0/Nt)

where t is the time interval, N0 is the initial number of radioactive nuclei, Nt is the number of radioactive nuclei after time t.

Substituting the given values, we get:

T1/2 = (4.50 days × ln 2) / ln(8255/3110)

       = 7.3 days

As a result, the half-life of this isotope is around 7.3 days.

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Answer:

The Big Bang Theory is the leading explanation about how the universe began. At its simplest, it says the universe as we know it started with a small singularity, then inflated over the next 13.8 billion years to the cosmos that we know today.

The work done against friction as the mass slides is 8 J.

The given parameters:

The work done against friction as the mass slides can be determined by applying work-energy theorem.

\(\Delta E= W\\\\P.E - K.E = W\)

the change in mechanical energy of the sliding mass, is equal to energy lost to friction.

\(W = P.E - K.E\\\\W = mgh - K.E\\\\W = (5 \times 9.8 \times 2) - 90\\\\W = 98 - 90\\\\W = 8 \ J\)

Thus, the work done against friction as the mass slides is 8 J.

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Answer:

x J = (1500 kg)(29 m/s)(y m/s)

Explanation:

x J = (1500 kg)(29 m/s)(y m/s)

To know that a 1500 kg car is moving at 29 m/s is not enough.

The value of x depends on y. You’re missing a number of meters and a quantity of ‘per seconds’ somewhere in your problem statement and you need to find them in order to solve the problem

The two principal factors that affect the force of air resistance on a falling object are speed  and  cross-sectional area of the object.

When an object falls through the air, it mostly encounters some sort of resistance to its speed and this resistance is known as air resistance.

This resistance is present because of the collisions of the air molecules with the frontal surface molecules of the object.

As the speed is increased of the object so that increased amount of air resistance. speed of the object is directly proportional to the air resistance.

The cross-section of solid is defined as the shape obtained by the intersection of solid by a plane .

The rate of change of distance with respect to time is known as speed.

S = (dx/dt)

Where, dx is the distance and dt is change in time .

So that,  more the speed, more the air resistance and so in the case with the cross-sectional area.

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According to the given statement , the potential difference V across the resistor R is 3105 V.

To find the potential difference V, we can use Ohm's Law and the formula for the potential difference across a capacitor.

First, let's calculate the current flowing through the circuit. We are given that I = 2.5 A.

Next, we can calculate the total resistance in the circuit using the formula R = R₁ + R₂. Given that R₁ = 40 Ω and R₂ = 1202 Ω, we can calculate the total resistance:

R = 40 Ω + 1202 Ω = 1242 Ω

Now, we can calculate the charge stored in the capacitor using the formula Q = C * V, where Q is the charge, C is the capacitance, and V is the potential difference across the capacitor. We are given that Q = 18 μC and C = 3 μF. Plugging these values into the formula, we can solve for V:

18 μC = 3 μF * V
V = 18 μC / 3 μF
V = 6 V

Finally, we can calculate the potential difference V across the resistor R. Using Ohm's Law, we can use the formula V = I * R:

V = 2.5 A * 1242 Ω
V = 3105 V

So, the potential difference V across the resistor R is 3105 V.

In conclusion, the potential difference V across the resistor R is 3105 V.

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Answer:

21.75 miles is 35km.

Explanation:

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Answer:

there is no list of "the following" you might want to re-upload your question.