To solve this problem, we must first assume that the gas acts like an ideal gas so that we can use the ideal gas equation:
P V = n R T
where P is the pressure, V is the volume, n is the number of moles, R is the universal gas constant and T is the absolute temperature
Assuming that the number of moles is constant, then we can write all the variables in the left side:
P V / T = k where k is a constant (n times R)
Equating two conditions or two states:
P1 V1 / T1 = P2 V2 / T2
We are given that V2 = 2 V1 therefore
P1 V1 T2 = P2 (2V1) T1
P1 T2 = 2 P2 T1
Additionally we are given that the temperature in Celsius is doubled, however in the formula we use the absolute temperature in Kelvin, therefore:
T1 (K) = T1 + 273.15
T2 (K) = 2T1 + 273.15
and P1 = 12 atm
Substituting:
12 (2T1 + 273.15) = 2 P2 (T1 + 273.15)
P2 = 6 (2T1 + 273.15) / (T1 + 273.15)
Assuming that a nice spring day in Chicago has a temperature of 15 Celsius, therefore:
P2 = 6 (2*15 + 273.15) / (15 + 273.15)
P2 = 6.312 atm
When the Celsius temperature of a gas in a container doubles, and the gas is transferred to a new container with twice the original volume, the new pressure of the system can be computed using the combined gas law.
Explanation:This Physics question involves understanding how gas laws work. Given the scenario where the Celsius temperature doubles and the gas is transferred to a container functioning at twice the original volume, several gas laws come into play such as Boyle's law and Charles's law, which relate pressure, volume, and temperature.
Let's look at Charles's law first. It states that volume is proportional to the absolute temperature, assuming constant pressure. From this law, we know that the gas's volume will increase when the temperature doubles. Meanwhile, according to Boyle's law, at constant temperature, the pressure and volume of a gas are inversely proportional. In other words, if you double the volume of the container, the pressure will be halved.
The new pressure will be derived by applying the combined gas law which factors the changes in both temperature and volume. Using Combined Gas law which is (P1V1)/T1 = (P2V2)/T2 where the pressures are in atmospheres, volumes in liters, and temperature in Kelvin, you can solve the new pressure in the system.
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According to statistics, currently there are approximately __________ drug users living in the United States.
A. 22 million
B. 15 million
C. 10 million
D. 5 million
A. 22 Million...........................................................
A ball is thrown from ground level so as to just clear wall 4m height at distance 4m from wall and falls 14 m from wall . Velocity of ball ?
When the temperature of a coin is raised by 79 °f, the coin's diameter increases by 1.90 × 10-5 m. if the original diameter is 1.55 × 10-2 m, find the coefficient of linear expansion?
The coefficient of linear expansion of the coin be 1.55 × 10 ^-5 /°f.
What is thermal expansion?The phenomena known as thermal expansion can be seen in solids, liquids, and gases. In this procedure, the application of heat causes an object or body to expand (temperature). The term "thermal expansion" refers to an object's propensity to change its dimensions as a result of heat, including length, density, area, and volume. The substance's kinetic energy increases when it is heated.
Given that:
the original diameter of the coin: l = 1.55 × 10^-2 m.
Increase in temperature: Δt = 79 °f.
Increase in diameter of the coin: Δl = 1.90 × 10^-5 m.
So, the coefficient of linear expansion: α = Δl/(lΔt )
= 1.90 × 10^-5 m/( 1.55 × 10^-2 m × 79 °f)
= 1.55 × 10 ^-5 /°f
Hence, the coefficient of linear expansion be 1.55 × 10 ^-5 /°f.
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If the electric field is 12 v/m in the positive x-direction, what is the potential difference between the origin, (0, 0), and the point (3.0 m, 4.0 m)?
The potential difference between the origin and (3.0 m, 4.0 m) in an electric field of 12 v/m is 36 V, pointing in the direction opposite to the electric field.
Explanation:
The potential difference (ΔV) between two points in an electric field can be calculated using the formula: ΔV = -E x (Xf - Xi), where E is the electric field strength, and Xf and Xi are the final and initial positions, respectively. In this case, the electric field is in the positive x-direction and given as 12 v/m, and the point of interest is (3.0 m, 4.0 m). However, because the electric field is only in the x-direction, the y-coordinate does not affect the outcome.
So, Xf = 3.0 m (the x-coordinate of the point) and Xi = 0 (as we're calculating the potential difference from the origin).
Substituting the given values into the equation, we get ΔV = -12 v/m x (3.0 m - 0) = -36 V.
The negative sign indicates that the potential decreases in the direction of the electric field. So, the potential difference between the origin and the point (3.0 m, 4.0 m) is 36 V, in the direction opposite to the electric field.
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If there's nothing faster than light, how did the dark get there first
The volcano olympus mons is an unusual example of the cone type called
How long would it take to drive around earth's equator? (earth's circumference ≈ 40,000 km if driving at 143km?
Final answer:
To calculate the time it would take to drive around Earth's equator at a speed of 143 km/h, you use the formula t = d/v, resulting in approximately 279.7 hours. This is an ideal, theoretical scenario.
Explanation:
The question is asking how long it would take to drive around the Earth's equator if you were driving at 143 km/h, given that the Earth's circumference is approximately 40,000 km. To solve this, we will use the formula for speed which is v = d/t, where v is the velocity or speed, d is the distance, and t is the time.
To find the time, we rearrange the formula to t = d/v. Plugging in the values, we get t = 40,000 km / 143 km/h. This calculates to approximately 279.7 hours. However, this is an ideal scenario, ignoring factors such as the need for stops, variations in speed, and the impossibility of driving continuously around the equator due to oceans and other geographic barriers.
Who makes sure that planes fly in and out of airports safely and do not run into each other in the skies?
The correct answer to this is:
“Air traffic controllers”
These people are the personnel who is responsible for the safety, orderly, and swift flow of planes flying in and out of airports using the global air traffic control system. They are generally stationed in air traffic control centers and control towers on the airport ground. They monitor the position, speed, and elevation of aircraft in their designated airspace visually and by radar, and give directions to the pilots by radio.
1. What 2 things can you check prior to starting your car to evaluate if it is safe to drive?
This diagram shows the magnetic field lines near the ends of two magnets. There is an error in the diagram.
Which change will correct the error in the diagram?
A-changing the N to S
B-Reversing the arrows on the left point toward the N
C-Changing the S to N
D-reversing the arrows on the right to point toward the S
Answer:
C-Changing the S to N
Explanation:
As we know that magnetic field lines originated from North pole of magnet and then terminate into the south pole of magnet.
Now if we put similar poles of magnet in front of each other then we can say that the magnetic field lines of two poles will repel each other and due to this two similar poles have repulsion force.
Similarly if two different poles of magnet will place in front of each other then the magnetic field lines will originate from north pole and terminate at south pole.
This will show attraction force between the poles of magnet.
Now we can see the figure that magnetic field lines are originating from both poles here as well as these lines are repelling each other.
So here both poles must have North pole
So correction here must be
C)-Changing the S to N
Fluid clutches are used on equipment that is subjected to?
Final answer:
Fluid clutches are used on equipment that is subjected to various loads and forces. In physics, fluid mechanics is the study of how fluids behave under different conditions, including how they transmit forces and pressures. Hydraulic systems, which use fluid clutches, are a key application of fluid mechanics in engineering.
Explanation:
Fluid clutches are used on equipment that is subjected to various loads and forces. In physics, fluid mechanics is the study of how fluids behave under different conditions, including how they transmit forces and pressures. Hydraulic systems, which use fluid clutches, are a key application of fluid mechanics in engineering.
For example, in heavy machinery like backhoes, hydraulic and mechanical lever systems, powered by fluid clutches, are used to transfer forces and lift heavy loads. These systems can increase or decrease the force applied to them by controlling the pressure and area of the fluid.
What is true of electrolytic cells but is not true of galvanic cells?
Answer:
They are Nonspontanious
Explanation:
(APEX)
If an engine operates on an input temperature of 800k and an exhaust temperature of 600k, calculate the efficiency of the engine.
Answer:
25.0 %
Explanation:
A plane can fly 600 miles in the same time as it takes a car to go 120 miles. if the car travels 120 mph slower than the plane, find the speed of the plane.
Which statement about human behavior would William James support
Answer:
Individuals can adapt their behavior to their environment.
Explanation:
I just know (;
When an electron moves 2.5 m in the direction of an electric field, the change in electrical potential energy of the electron is 8x10-17j. what is the strength of the electric field that causes the change in potential energy?
The number of significant figures in the measurement 0.000 305 kg is
six.
two.
seven.
three.
We have that from the Question"The number of significant figures in the measurement 0.000 305 kg is " it can be said that The number of significant figures in the measurement 0.000 305 kg is
3Option DFrom the Question we are told
The number of significant figures in the measurement 0.000 305 kg is
six. two. seven. three.Generally the rule of significant number state that
Leading zeros are NOT significant.Therefore
We cont all none zero number
We have
X=3
Therefore
The number of significant figures in the measurement 0.000 305 kg is
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Which of the following is not a part of kinetic molecular theory? A. Particles are in constant, random motion. B. When particles collide, no energy is lost. C. Small particles make up all matter. D. When temperature is increased, particles move more slowly.
The Kinetic Molecular Theory explains the behavior of gases based on the motion of particles and their interactions. It includes assumptions about particle motion, collisions, and kinetic energy dependence on temperature.
Kinetic Molecular Theory:
Gases consist of tiny particles in constant, random motion.
Collisions between particles are perfectly elastic with no energy loss.
There are no attractive/repulsive forces between particles.
The average kinetic energy of gas particles increases with temperature.
How do noise canceling headphones work
Noise-canceling in headphones works from a combination of microphones, electronic circuitry, and speakers to reduce or eliminate external sounds.
A more tranquil and immersive listening experience is achieved with noise-canceling headphones, which use a mix of speakers, electronic circuitry, and microphones to decrease or completely remove outside noises.
This noise-cancellation procedure is performed in real-time, continuously modifying the anti-noise signal as the outside noise changes. Consequently, low-frequency disturbances like background chatter, air conditioner humming, and motor noise can be significantly reduced with the help of active noise-canceling headphones.
On the ear cups or earbuds of active noise-canceling headphones are small microphones. These microphones capture ambient and background noise from the outside world.
The noise-canceling circuitry in the headphones receives the noises captured by the microphones and cancels them out. This circuitry analyses the sound signals to find undesired outside noise.
Hence, noise-canceling in headphones works from a combination of microphones, electronic circuitry, and speakers to reduce or eliminate external sounds.
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What best describes the significance of albert einstein's famous equation e=mc^2?
Answer:
Scientists used it to develop nuclear power
Microwave ovens emit microwave energy with a wavelength of 12.9 cm. what is the energy of exactly one photon of this microwave radiation?
The energy of a photon in a microwave is calculated by the Planck-Einstein relation, followed by substituting the given wavelength into the equation: E=(hc)/λ. Then convert the result, if necessary, from joules to electron-volts.
Explanation:This problem requires knowledge of the relationship between wavelength, frequency, and energy in electromagnetic waves, such as those emitted by a microwave. The energy of a photon is given by the Planck-Einstein relation:
E=hf
where h is Planck's constant (6.62607015 × 10⁻³⁴ Js), f is the frequency, and E is energy. The frequency can be found from the speed of light (c) and the wavelength (λ) using c = f λ. Thus, E can also be computed as E=(hc)/λ.
For a microwave oven emitting waves of 12.9 cm wavelength, first convert the wavelength to meters: 12.9 cm = 0.129 m. Then substitute this, along with the values for h and c, into the equation to find the solution.
Remember, the resulting energy will be in joules but can be easily converted to electron-volts (eV), if necessary, as 1 eV = 1.602 x 10⁻¹⁹ J
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What would be your estimate of the age of the universe if you measured a value for hubble's constant of h0 = 30 km/s/mly ? you can assume that the expansion rate has remained unchanged during the history of the universe. express your answer using two significant figures. yr?
An electric oven has a resistance of 10.0 Ω and a voltage of 220 V. How much current does it draw? 22 A 2.2 A 220 A 2,200 A
Using Ohm's Law, the electric oven with a resistance of 10.0 Ω and a voltage of 220 V draws a current of 22 A.
Explanation:An electric oven with a resistance of 10.0 Ω connected to a voltage of 220 V will draw a current that can be calculated using Ohm's Law, which is I = V/R, where I is the current, V is the voltage, and R is the resistance.
Applying the values, we have I = 220 V / 10.0 Ω = 22 A. Therefore, the oven draws a current of 22 A when operating at 220 V.
You may have noticed that when water boils you can see the bubbles that rise to the surface of the water.. what is inside these bubbles?
The bubbles that form and rise when water boils contain primarily water vapor. When the temperature reaches 100°C, the vapor pressure inside the bubbles equalizes with the atmospheric pressure, causing them to rise. This process is what we observe as boiling.
When water boils, you can see bubbles that rise to the surface. These bubbles contain water vapor. At lower temperatures, like 20°C, the bubbles start with some dissolved air and water vapor. As the temperature rises to boiling point (100°C), the amount of water vapor inside the bubbles increases because the vapor pressure reaches 1.00 atm, equalizing with atmospheric pressure. This causes the bubbles to grow and rise to the surface, where they burst, releasing water vapor into the air.
Compared with a force, a torque involves
How much heat transfer occurs from a system, if its internal energy decreased by 150 j while it was doing 30.0 j of work?
Hence the heat transfer that occurs from a system will be -120 J.
What is heat transfer?Heat transfer refers to the movement of heat. The flow of heat across a system's boundary is due to a temperature differential between the system and its surroundings.
The given data in the problem is;
ΔU is the internal energy -150 J
W is the work fon = - 30 J
Q is the heat transfer that occurs from a system
The internal energy of the system is found as;
[tex]\rm \triangle U = Q + W \\\\-150 =Q-30 \\\\ Q=-120 \ J[/tex]
The heat transfer that occurs from a system will be -120 J.
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When the net force that acts on a hockey puck is 12 n, the puck accelerates at a rate of 48 m/s2. determine the mass of the puck?
select the statement that best describes how the forces relate.A. The object on which they are acting and the distance to that object determines the amount of force.B. nuclear and magnetic forces are different because magnetic forces are associated with unmoving charges, and weak nuclear forces are associated with moving charges.C. All forces are related to the mass of the object on which they are acting.The larger the mass, the weaker the forces become. D. Magnetic and electrical forces are similar because they are both related to the interactions between charged particles.
Answer:
D. Magnetic and electrical forces are similar because they are both related to the interactions between charged particles.
Explanation:
When charge particles are placed near to each other then the two charges will attract or repel each other by electrostatic force given by
[tex]F = \frac{kq_1q_2}{r^2}[/tex]
while if charge particles are moving with respect to each other then in that case the magnetic field produces by the two moving charges will exert force on the two charges.
This magnetic force on moving charge is given as
[tex]F = qvB[/tex]
now here we can say that both electrostatic force and magnetic force are related to charge particles so these two forces are similar to each other
so correct answer will be
D. Magnetic and electrical forces are similar because they are both related to the interactions between charged particles.
What should sportsman always consider when hunting from a boat?
Answer:
Most accidents happen in open motorboats 16 feet or less.
A 900-N lawn roller is to be pulled over a 5-cm (high) curb. Radius of roller is 25 cm. What minimum pulling force is needed if angle made by handle is (a) 0 deg (b) 30 degrees?
Final answer:
When the handle angle is 0 degrees, no minimum pulling force is needed. When the handle angle is 30 degrees, the minimum pulling force needed is 36,000 N.
Explanation:
To calculate the minimum pulling force needed to pull a 900-N lawn roller over a 5-cm curb, we can use trigonometry and the concept of work. The work done to lift the roller over the curb is equal to the force applied multiplied by the distance moved in the direction of the force. Since the force is perpendicular to the direction of motion when the handle angle is 0 degrees, no work is done.
Therefore, no minimum pulling force is needed. When the handle angle is 30 degrees, the work done is equal to the force applied multiplied by the vertical distance lifted. Using trigonometry, the vertical distance lifted is given by 5 cm multiplied by the sine of 30 degrees, which is 2.5 cm (or 0.025 m). Therefore, the minimum pulling force needed is the work done divided by the distance moved, which is 900 N divided by 0.025 m, equal to 36,000 N.