100 g of oxygen gas is distilled into an evacuated 600 cm^3 container. a) What is the gas pressure at a temperature of 150C? b) Estimate the root-square-velocity of the gas at 150C?

Answer:

Camaflouge

Explanation:

When animals blend in with their surroundings to hide from predators.

Ex: A squirrel climbing a tree that is the same color of its fur.

An artic fox lying in the snow.

A bee getting pollen.

Stick bugs blending in with shrubs and trees.

A motorist is traveling at 14 m/s when he sees a deer in the road 37 m ahead. If the maximum negative acceleration of the vehicle is −7 m/s^2. The maximum reaction time Δt is 2 seconds.(6)The motorist will be traveling at approximately 1.17768 m/s when he reaches the deer.

To calculate the maximum reaction time Δt that will allow the motorist to avoid hitting the deer, we need to determine the time it takes for the vehicle to come to a complete stop from its initial velocity.

Given:

Initial velocity (u) = 14 m/s

Distance to the deer (s) = 37 m

Maximum negative acceleration (a) = -7 m/s^2

We can use the following equation of motion to find the time taken to stop:

s = ut + (1/2)at^2

Since the vehicle comes to a stop, its final velocity (v) will be 0. Plugging in the values:

0 = 14t + (1/2)(-7)t^2

Rearranging the equation:

7t^2 - 14t = 0

Factoring out common terms:

7t(t - 2) = 0

This equation will be true if either t = 0 (which is not the case since the vehicle needs time to react) or t - 2 = 0. Therefore, the maximum reaction time Δt is 2 seconds.

Now, to calculate the final velocity when the motorist reaches the deer after a reaction time of 1.83176 seconds, we can use the equation:

v = u + at

Plugging in the values:

u = 14 m/s

a = -7 m/s^2

t = 1.83176 s

v = 14 + (-7)(1.83176)

v = 14 - 12.82232

v = 1.17768 m/s

Therefore, the motorist will be traveling at approximately 1.17768 m/s when he reaches the deer.

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When 22.0 grams of HCl are dissolved in 90.0 grams of water, a solution is created that contains 19.6% of that solution's mass.

The formula for determining the percent by mass of any substance contained in any solution is:

% mass is equal to (mass of substance / total mass of solution) 100 percent.

Therefore, 22g of HCl (solute) and 90g of water are the respective mass units (solvent)

22 + 90 = 112 g is the solution's mass.

Putting values together, we obtain % mass = (22 / 112)100% = 19.6%.

Consequently, 19.6% of the needed mass is mass.

The mass percentage that indicates the mass of solute contained in a given mass of solution can be used to characterize the composition of the solution. In terms of mass or moles, the solute's concentration is expressed.

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1. Connect the DC motor with a potentiometer to the Arduino board, along with a temperature sensor and an IR sensor with an LED.

2. Write the necessary code to integrate all the sensors and control the motor based on the inputs.

To connect a DC motor with a potentiometer to an Arduino board, you will need to use a motor driver module that can handle the power requirements of the motor. The motor driver module allows you to control the speed and direction of the motor using the Arduino. Connect the motor to the appropriate terminals on the motor driver module and the potentiometer to an analog input pin on the Arduino. The potentiometer will act as a voltage divider, allowing you to vary the input voltage to control the motor speed.

Next, connect a temperature sensor that can measure temperatures in the range of -10 to +45 degrees Celsius. Depending on the type of temperature sensor you are using, you may need to follow specific wiring instructions provided by the manufacturer. Connect the temperature sensor to the appropriate digital or analog input pin on the Arduino board.

Lastly, connect an IR sensor with an LED to detect motor overspeed. The IR sensor can be used to measure the rotational speed of the motor by detecting interruptions in the infrared beam caused by the rotating motor shaft. If the motor speed exceeds the threshold of 25,000 rpm, the IR sensor will trigger an output to activate the LED as a signal.

To make all the sensors work together, you will need to write code using the Arduino programming language. Use appropriate libraries and functions to read the sensor values and implement the desired logic for motor control and overspeed detection. You can define temperature thresholds and motor speed limits in the code and take appropriate actions based on the sensor readings.

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Answer:

To find the distance, use the formula for distance d = st, or distance equals speed times time.

Answer:

Speed=distance/time

time=distance/speed

distance=speed *time

Answer:

2.5

Explanation:

F=m.a

(Force = mass . acceleration)

 5=2.a

a= 5/2 = 2.5

If the speed of an object does NOT change, the object is traveling at uniform speed.

Answer:

answer is uniform

Explanation:

This is an example of a standing wave interference pattern, where sound waves interfere constructively at certain points and destructively at others.

The distance between the speakers is not given, so we'll call it d. We'll also call the distance from each speaker to your ears x and y, respectively. Using the formula for the path difference for constructive interference, we have:

path difference = mλ, where m is an integer and λ is the wavelength of the sound wave.

For the first case, m = 0 (since the distance from the midpoint between the speakers to your right ear is an exact multiple of the wavelength), so the path difference is zero. For the second case, m = 1 (since the distance from the midpoint between the speakers to your left ear is one-half of a wavelength more than an exact multiple of the wavelength), so the path difference is λ/2. Equating these two expressions for the path difference, we get:

λ/2 = d sinθ, where θ is the angle between the line connecting the two speakers and the line connecting your left ear to the midpoint between the speakers.

Since the speakers are facing each other, the angle between them is 180 degrees, so sinθ = sin(180 - θ) = sinθ. Therefore:

λ = 2d sinθ.

The two lowest frequencies correspond to the longest wavelengths that fit between the speakers, which occur when the wavelength is twice the distance between the speakers (i.e., one full wavelength fits between them) and four times the distance between the speakers (i.e., two full wavelengths fit between them). Therefore:

λ1 = 2d, f1 = v/λ1 = v/2d,

λ2 = 4d, f2 = v/λ2 = v/4d,

where v is the speed of sound.

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The fraction of incident intensity of a sound pulse that will be reflected when sound travels from fat into lung is 58.24%

An elastic material medium allows sound, a mechanical disturbance from an equilibrium state, to travel through it. It is also possible to define sound solely subjectively, as that which is perceived by the ear. However, this definition lacks clarity and is overly constrictive, as it is useful to discuss sounds that are produced by devices other than the human ear, such as dog whistles and sonar equipment, which cannot be heard by the human ear.

Starting with the characteristics of sound waves is important when studying sound. Transverse and longitudinal waves are the two basic types of waves, which are distinguished by the way in which the wave moves.

\($$\rho=$ Density of material\\$\mathrm{c}=$ Acoustic velocity\\\\Impedance is given by$$Z=\rho c$$Acoustic impedance of lung$$Z_l=\rho_l c_l=0.18 \times 10^6 \mathrm{kgs} / \mathrm{m}^2$$Acoustic impedance of fat$$Z_f=\rho_f c_f=1.34 \times 10^6 \mathrm{kgs} / \mathrm{m}^2$$\)

\($$Reflection coefficient is given by$$\begin{aligned}& R=\left(\frac{Z_l-Z_f}{Z_l+Z_f}\right)^2 \\& \Rightarrow R=\left(\frac{0.18 \times 10^6-1.34 \times 10^6}{0.18 \times 10^6+1.34 \times 10^6}\right)^2 \\& \Rightarrow R=0.5824\end{aligned}$$\)

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Complete question:

Answer:

69420. trust me, very good answer

Explanation:

Approximately 1825 kilowatt-hours of electrical energy are consumed in one year by using ten 100-watt lightbulbs for five hours per day.

To calculate the kilowatt-hours of electrical energy consumed in one year by using ten 100-watt light bulbs for five hours per day, we need to first calculate the total watt-hours consumed in one day and then multiply it by 365 (days in a year).

Total wattage of ten 100-watt light bulbs = 10 x 100 = 1000 watts
Watt-hours consumed in one day = 1000 watts x 5 hours = 5000 watt-hours
Kilowatt-hours consumed in one day = 5000 watt-hours / 1000 = 5 kWh
Kilowatt-hours consumed in one year = 5 kWh x 365 = 1825 kWh

Therefore, approximately 1825 kilowatt-hours of electrical energy are consumed in one year by using ten 100-watt lightbulbs for five hours per day.

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This statement is partially correct. It takes less and less time to fuse heavier elements up to iron inside a high-mass star, but beyond iron, fusion requires energy instead of releasing energy and is not sustainable.

It takes less and less time to fuse heavier and heavier elements inside a high mass star. Iron is the most stably bonded atomic nucleus. When a stellar iron core collapses, large numbers of neutrinos are formed, and then: they immediately pass through the core and escape to space.

Higher mass stars will switch from helium to carbon burning and extend their lifetimes. Even higher mass stars will burn neon after carbon is used up. However, once iron is reached, fusion is halted since iron is so tightly bound that no energy can be extracted by fusion

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Answer: D

Explanation:

cause i got it right

The controversial psychological study of prison life that took place in 1971 is known as the Stanford Prison Experiment. It was conducted by psychologist Philip Zimbardo and his team at Stanford University to examine how individuals adapt to the roles of prisoners and prison guards in a simulated prison environment.

The study involved 24 male college students who were randomly assigned to either the role of prisoner or guard. The experiment quickly spiraled out of control as the guards began to abuse their power, and the prisoners became increasingly submissive and depressed. The guards used psychological tactics such as humiliation, sleep deprivation, and even physical punishment to maintain their authority over the prisoners.

The study was meant to last for two weeks, but it was terminated after just six days due to the extreme and abusive behavior of the guards. The Stanford Prison Experiment remains controversial due to ethical concerns about the mistreatment of the participants and the potential long-term psychological effects on those who took part.

The study has had a significant impact on the field of psychology and has raised important questions about the ethics of conducting psychological research. It has also shed light on the dangers of group dynamics and how individuals can be easily influenced by social roles and situations.

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Two solid spheres with identical charge imbalance of 2 C have radii of 5 cm each. A is an excellent conductor, or sphere A. As an insulator, sphere B's charge is dispersed evenly throughout its volume.

A charge is what?

the sum of money required to purchase something, particularly a service: levy/impose/experience a fee You will be charged if you don't cancel the reservation within the allotted time. the cost of sb/sth Do kids pay anything or are they admitted free minimal or modest charge For this service, we charge a small fee.

What does charge mean in physics and chemistry?

August 8, 2017 update. Charge often refers to electric charge in chemistry and physics, which is a conserved feature of some subatomic particles that governs their electromagnetic interaction. An electromagnetic field exerts a force on matter as a result of the physical attribute of charge.

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Using the formula for double-slit interference, we can calculate the unknown slit separation. By rearranging the formula, we find that the slit separation is approximately 0.188 mm.

In a double-slit experiment, the interference pattern observed on the screen is determined by the slit separation (d) and the wavelength of the light (λ). The formula for the position of the interference fringes is given by:

\(y=\frac{(m \lambda L)} {d}\)

where y is the distance of the fringe from the central line, m is the order of the fringe (in this case, m = 1 for the first-order line), λ is the wavelength, L is the distance from the slit to the screen, and d is the slit separation.

In this scenario, we are given the wavelength (639.6 nm), the distance from the slit to the screen (1.226 m), and the position of the first-order line (71.0 mm or 0.071 m) from the central line.

  Rearranging the formula, we have:

 \(d=\frac{(m \lambda L)} {y}\)

Substituting the given values, we can calculate the slit separation:

 \(d=\frac{(1 \times 639.6 nm \times 1.226 m)} {(0.071 m)}\)

By evaluating this expression, we find that the slit separation is approximately 0.188 mm.

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Given,

The mass of the fridge magnet, m=20 g

The force that is holding the fridge magnet, F=0.9 N

The coefficient of friction, μ_s=0.30

Where N is the normal force acting on the fridge magnet and f is the frictional force.

A.

The normal force acting on the fridge magnet is equal to the force that holds the fridge magnet to the surface of the fridge.

Thus the normal acting on fridge magnet is,

Thus the frictional force acting on the magnet is given by,

On substituting the known values,

Thus the frictional force acting on the magnet is 0.27 N

B.

The weight of the magnet is given by,

Where g is the acceleration due to gravity.

On substituting the known values,

Thus the weight of the magnet is 196 N

C.

As the friction acting on the magnet is less than the weight of the magnet, the magnet will fall down.

The net vertical force acting on the magnet is given by,

Where a is the acceleration of the magnet.

On substituting the known values,

Thus the acceleration of the magnet is 9.77 m/s²

Answer:

The kinetic energy is more than half of its maximum energy

Answer:The answer is C: any fundamental force

Explanation:

A P E X

Answer:

-8m/s2

Explanation:

it decelerate. initial velocity u=50m/s and final velocity v= 10m/s and the time t= 5s

using this equation v= u+at

a= v-u/t= 10-50/5=-40/5= -8m/s2

Answer:

\( \boxed{\sf Acceleration \ (a) = -8 \ m/s^2} \)

Given:

Initial velocity (u) = 50 m/s

Final velocity (v) = 10 m/s

Time taken (t) = 5 seconds

To Find:

Acceleration (a) of the car

Explanation:

From equation of motion we have:

\( \boxed{ \bold{v = u + at}}\)

By substituting value of v, u & t in the equation we get:

\( \sf \implies 10 = 50 + 5a \\ \\ \sf \implies 5a + 50 = 10 \\ \\ \sf \implies 5a = 10 - 50 \\ \\ \sf \implies 5a = - 40 \\ \\ \sf \implies a = - \frac{40}{5} \\ \\ \sf \implies a = - 8 \: m {s}^{ - 2} \)

\( \therefore\)

Acceleration (a) of the car = -8 m/s²

Answer:

360 degrees is one full rotation starting at zero

it take 2 s  to the flag to rotate once in a full circle  with 3 rad/s of angular velocity.

Angular velocity is "rate of change of angular displacement with respect to time". i.e. ω= dθ/dt. it is also defined as angular displacement over time. i.e. ω = angular displacement/Time.

Angular velocity shows how much angle can be covered in unit time. It's SI unit rad/s.

Angular acceleration is rate of change of Angular velocity with respect to time.

i.e. α = dω/dt if an object changes its angular velocity in short time, we can say that it has greater angular acceleration. It is expressed in rad/s².

In this problem we have to calculate time, but the angular velocity id not given.

Consider the angular velocity is 3 rad/s.

Given,

Angular displacement θ = 2π

angular velocity ω = 3 rad/s

Time t = ?

Time = θ/ω

Time = 2π/3 rad/s = 2 s

Hence the answer is 2s.

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Answer:

d)60cm​

Explanation:

When an object is placed in front of a plane mirror, its image is formed behind the mirror at the same distance as the object is in front of the mirror. This means that the image distance (d_i) is equal to the object distance (d_o):

d_i = d_o

Initially, the object is placed 30 cm in front of the mirror, so the image distance is also 30 cm.

When the mirror is moved a distance of 6 cm towards the object, the new object distance becomes:

d_o' = d_o - 6 cm = 30 cm - 6 cm = 24 cm

Using the mirror formula, we can find the image distance for the new object distance:

1/d_o' + 1/d_i' = 1/f

where f is the focal length of the mirror, which is infinity for a plane mirror. Therefore, we can simplify the equation to:

1/d_o' + 1/d_i' = 0

Solving for d_i', we get:

1/d_i' = -1/d_o'

d_i' = - d_o'

Substituting the given values, we get:

d_i' = -24 cm

Since the image distance is negative, this means that the image is formed behind the mirror and is virtual (i.e., it cannot be projected onto a screen).

The distance between the object and its image is the difference between their positions:

distance = d_i' - d_o = (-24 cm) - (30 cm) = -54 cm

Since the image is virtual, we can take the absolute value of the distance to get the magnitude:

|distance| = |-54 cm| = 54 cm

Therefore, the distance between the object and its image is 54 cm. The answer is (d) 60 cm, which is the closest option to 54 cm.

(a) The formula for these two atoms' center masses in relation to the oxygen atom is. (b) The center of mass of monoxide has a numerical value of 53 pm.

The settings provided;

The carbon atom's mass is 12u.

The oxygen atom has a mass of 17 u and a spacing of 128 pm between its atoms.

These two atoms' center masses in relation to the oxygen atom are computed as follows;

where; is the atom's separation from the fixed reference point (the oxygen atom) (b) The following equation is used to calculate the center of mass of monoxide in measures of pm:

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Phyla in increaing order of evolution is Platyhelminthes, Annelidia, Arthopoda and Echinidermata.

What is meant by Annelidia?

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Moment of inertia is the measure of an object's resistance to rotational motion. It depends on the mass of the object and how that mass is distributed relative to the axis of rotation.

The moment of inertia of an object can be calculated theoretically based on its shape and mass distribution. This calculation can be done using various equations depending on the specific shape of the object and the axis of rotation. In an experiment, the moment of inertia of an object can be determined by measuring the time it takes for the object to rotate a certain angle around an axis. This time can then be used to calculate the moment of inertia using the equation:I = (mR²) / (2θ)Where I is the moment of inertia, m is the mass of the object, R is the distance from the center of rotation to the object, and θ is the angle of rotation.Experimental results may or may not match theoretical predictions for the moment of inertia of two objects.

If the measurements taken in the experiment are precise and accurate, the calculated moment of inertia should be close to the theoretical prediction. However, there may be sources of error in the experiment that cause the results to deviate from the theoretical prediction. Some sources of error could include friction between the object and the axis of rotation, imprecise measurements of the object's mass or distance from the axis of rotation, or external forces acting on the object during rotation. If the results do not match the theoretical prediction, it is important to consider possible sources of error and investigate ways to improve the experiment in the future.

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The acceleration of the luggage across the airport is 0.42 m/s².

The acceleration of the luggage across the airport is calculated by applying Newton's second law of motion as follows;

Mathematically, the Newton's second law of motion is given as;

F(net) = ma

where;

F - Ff = ma

where;

33.3  - 12.3  = 50a

21 = 50a

a = 21/50

a = 0.42 m/s²

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The complete question is below:

Jadee pulls a piece of luggage across the airport, notices that she is lagging behind her parents and wants to catch up for a short amount of time. She pulls with a horizontal force of 33.3 N. The force due to friction for the luggage is 12.3 N and the mass of the luggage is 50.0 kg. find the acceleration of the luggage.

Jenny must use 200 pounds of force to lift Bowser onto a 3-foot table.

The work done against gravity is given as

Work = Force × Distance × cos(0) = Force × Distance.

Now, according to the work principle, the work done by Jenny should equal the gravitational force received by Bowser:

Work = change in potential energy. The potential energy gained by

Bowser is given by the formula:

Potential Energy = Mass × Gravity × Height,

Mass is Bowser's size, Gravity is the velocity due to gravity, and height is the height of the ball. table. If we convert

Bowser's mass from pounds to bullets (1 bullet = 32,174 pounds) and the height of the table from feet to inches (1 feet = 12 inches), we get:

Potential energy = (200 lb / 32 ).

174 lb/slug) × (32.174 ft/s²) × (3 ft × 12 in/ft).

By simplifying the equation, we get:

Energy Capacity = 200 × 3 × 12 in²/sq.

Since the work done by gravity is equal to the power that can be taken, we can equate the two sentences:

Force × Distance = 200×3×12 in²/s².

To solve for force:

Force = (200 × 3 × 12 inches² / s²) / distance.

Substituting the distance of 12 feet in the equation, we can calculate the force:

force = (200 × 3 × 12 in² / s²) / 12 feet

Substituting the units, we find:

force = 200 4 lbs.

So Jenny must use 200 pounds of force to lift Bowser onto a 3-foot table.

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Answer:

v = 31.89 m/s

Explanation:

p = m × v

1,850 = 58 × v

58v = 1,850

v = 1,850/58

v = 31.89 m/s