The entropy change in the process that brings the gas to 550 K and 1.3 atm cannot be determined without additional information about the specific gas and the details of the process.
To calculate the entropy change in a process, we need information about the initial and final states of the system and the thermodynamic properties of the gas. In this case, we are given the final temperature (550 K) and pressure (1.3 atm), but we do not have the necessary information about the initial state or the specific gas.
Entropy change can be calculated using the equation:
ΔS = ∫(dq_rev/T)
where ΔS is the entropy change, dq_rev is the infinitesimal amount of heat added or removed reversibly during the process, and T is the temperature.
Without knowing the initial state, we cannot determine the exact path of the process or the amount of heat exchanged, and therefore we cannot calculate the entropy change.
The entropy change in the process that brings the gas to 550 K and 1.3 atm cannot be determined without additional information about the specific gas and the details of the process.
To know more about entropy, visit;
https://brainly.com/question/419265
#SPJ11
how much voltagr is required to make 4 amperes flow throgh a resistance of 20 ohms?
To make 4 amperes flow through a resistance of 20 ohms, 80 volts of voltage are required.
Ohm's law states that the current flowing through a conductor between two points is directly proportional to the voltage across the two points and inversely proportional to the resistance between them. In other words, the greater the voltage, the greater the current that flows through a given resistance.
The voltage required to make 4 amperes flow through a resistance of 20 ohms can be calculated using Ohm's law:
Voltage (V) = Current (I) x Resistance (R)
Therefore, V = 4 A x 20 Ω = 80 V
So, to make 4 amps flow through a resistance of 20 ohms, 80 volts of electricity are required.
To know more about the Resistance, here
https://brainly.com/question/4712184
#SPJ1
100 POINTS FOR HELP
A chef needs to increase the temperature of a food dish. She thinks she can do this by stacking another dish on top of it. She has three dishes to choose from for the top dish: A, B, and C.
Which one of these dishes would make the food dish the warmest when placed on top of it? As part of your answer, explain how the energy and temperature of both the top dish and the food dish will change when the food dish warms up, and why.
Answer:
It is not possible to determine which of the dishes, A, B, or C, would make the food dish the warmest without more information. In general, the temperature of the food dish will increase as a result of heat transfer from the top dish to the food dish. This transfer of heat will cause the temperature of the top dish to decrease. The amount of heat transferred and the resulting change in temperature for both dishes will depend on the heat capacities and initial temperatures of both dishes, as well as the amount of time they are in contact with each other. In order to determine which of the dishes, A, B, or C, would make the food dish the warmest, more information about these factors would be needed.
Explanation:
The distance covered by a mousetrap car in (m)
The distance and displacement are the two quantities which seem to mean the same but are distinctly different from each other. Here let us assume the speed of a object as 4m/s and time as 10 s, then the distance is 40m.
What is distance?The distance of an object can be defined as the complete path travelled by an object. It is a scalar quantity. It has both magnitude and direction. The SI unit of distance is meter (m).
The equation connecting distance, speed and time is given as:
Speed = Distance / Time
Distance = Speed × Time
= 4 × 10
= 40 m
Thus the distance is 40m.
To know more about speed, visit;
https://brainly.com/question/26550516
#SPJ9
Your question is incomplete, but most probably your full question was.
Calculate the distance covered by a mousetrap car in (m) when the speed of a object is 4m/s and time is 10 seconds.
the value of the resistance in a conductor is decided by what factors? group of answer choices cross sectional area material length
The connection (R=Al) states that the resistance of a conductor depends on its resistivity, length, and cross-sectional area.
The connection (R=Al) states that the resistance of a conductor depends on its resistivity, length, and cross-sectional area. Other physical elements like temperature and others do affect it. Ohm () is its SI unit.The degree to which an object obstructs or resists an electric current is referred to as resistance. The movement of electrons is referred to as electric current. Consider the scenario of a person navigating a busy market and encountering difficulty moving from one shop to another to better understand resistance.
learn momore about resistance here:
https://brainly.com/question/11431009
#SPJ4
dựa vào tính chất ảnh của vật tạo bởi gương phẳng hãy vẽ ảnh của vật sáng AB có dạng mũi tên được đặt theo vị trí tạo với GB một góc 60 độ
Explanation:
good luck with the one that was on the one that has to be done
The number of waves that pass a certain point in a given amount of time.
Group of answer choices
Frequency
Wavelength
Wave
Reflect
If a 5-kg object experiences a 10-N force for a duration of 0. 10-second then what is the impulse exerted by the force on the object? What is the momentum change of the object? What is the change in velocity for the object?
Answer:
orce = rate of change of momentum which is m a if the mass is constant
10 Newtons = change of momentum/0.10 second
so change of momentum = 1 kg m/s
by the way the change in speed would be 1/5 = .2 m/s
Explanation:
If a 5-kg object experiences a 10-N force for a duration of 0. 10-second then the impulse exerted by the force on the object would be 1 Ns, and the change in the momentum would be 1 Ns.
What is momentum?It can be defined as the product of the mass and the speed of the particle, it represents the combined effect of mass and the speed of any particle, and the momentum of any particle is expressed in Kg m/s unit.
As given in the problem If a 5-kg object experiences a 10-N force for a duration of 0. 10-second then we have to find out what the impulse exerted by the force on the object.
P = force × time
= 10 × 0.1
= 1 Ns
Thus, If a 5-kg object experiences a 10-N force for a duration of 0. 10-second then the impulse exerted by the force on the object would be 1 Ns, and the change in the momentum would be 1 Ns.
To learn more about momentum from here , refer to the link given below ;
brainly.com/question/17662202
#SPJ5
A truck with a mass of 1509 kg is decelerated at a rate of 5m/s/s. How much force did this require?
Answer:
1500 x 5 = 6500 N
Explanation:
i took quiz
Olivia was riding her bike at a speed of 4m/s when she began rolling down a hill. The hill caused her to accelerate at a rate of 2m/s 2 until she reached the end of the hill 45m later. How fast was she going when she made it to the bottom of the hill?
The speed of Olivia when she made it to the bottom of the hill is 14m/s.
Kinematics is the study of mechanical points, bodies, and systems in motion without taking into account the forces acting on them or the corresponding physical qualities.
Kinematics equations of motion define the fundamentals of an object's motion, such as its position, velocity, or acceleration over time. These three equations of motion control how an item moves in one, two, and three dimensions.
Kinetics considers physical forces as well as material characteristics such as mass stiffness and tensile or compressive strength. These characteristics can be used to take a theoretical model from kinematics and use physics and thermodynamics to determine how to construct a workable, dependable, and functional real-world system.
Given,
Initial velocity, u = 4m/s
Acceleration, a = 2m/s-2
Displacement, s= 45m
we know that,
\(v^{2}= u^{2} + 2as\), where v= final velocity
substituting the value in the above equation, we got
\(v^{2}\) = \(4^{2} + 2(2)(45)\)
v = \(\sqrt{196}\)
v = 14 m/s
Thus, the speed of Olivia going down the hill is 14m/s.
Learn more about the Equation of motions here:
https://brainly.com/question/5955789
#SPJ9
a current element produces a magnetic field in the region surrounding it. at any point in space, the magnetic field produced by this current element points in a direction that is perpendicular to the current element and to the radial direction. parallel to the current element. radial from the current element to the point in space.
It is neither parallel to the current element nor radial from the current element to the point in space.
A current element produces a magnetic field in the region surrounding it due to the flow of electric charges.
To understand the direction of the magnetic field at any point in space,
we can use the Biot-Savart Law.
Step 1: Consider a small current element (a section of a wire carrying current) with current I.
Step 2: Identify a point P in space where you want to determine the magnetic field produced by the current element.
Step 3: Draw a vector from the current element to point P, known as the radial vector.
This vector points from the current element towards the point P in space.
Step 4: The magnetic field produced by the current element at point P is perpendicular to both the current element and the radial vector.
This can be found using the right-hand rule.
Step 5: To apply the right-hand rule, point your thumb in the direction of the current and curl your fingers in the direction of the radial vector.
The direction in which your palm is facing is the direction of the magnetic field.
The magnetic field produced by the current element points in a direction that is perpendicular to the current element and to the radial direction.
For similar question on radial.
https://brainly.com/question/2019841
#SPJ11
what are the fundamental units used in physics?
Answer:
Metre, kilogram, second, ampere, kelvin, candela, and mole
Explanation:
A base unit (also referred to as a fundamental unit) is a unit adopted for measurement of a base quantity
What is the far point in m of a person whose eyes have a relaxed power of 53. 6 d? (assume a lens-to-retina distance of 2. 00 cm. )
According to the relaxed power, the far point in meter unit is 0.28 meters.
We need to know about the relaxed power of the eye to solve this problem. Relaxed power can be defined as the ability of the optical device to see. It can be represented by a dioptre unit. The relaxed power formula is
P = 1/di + 1/do
where P is power of the eye, di is distance between eye lens and image and do is distance between eye lens and image.
From question above, the given parameters are
P = 53.6 d
di = 2 cm = 0.02 m
By substituting the given parameters, we can calculate the far point
P = 1/di + 1/do
53.6 = 1/0.02 + 1/do
1/do = 53.6 - 50
1/do = 3.6
do = 1/3.6
do = 0.28 m
Hence, the far point in meter unit is 0.28 meters.
For more on relaxed power at: https://brainly.com/question/15445779
#SPJ4
The density of the Earth is greater than the density of an equal volume of water by _____.
5½ times
3½ times
1½ times
7½ times
Answer:
I think the second option is correct
please mark me as brainliest
2. Write five honest ways of earning money.?
Answer:
Get Hired
Start a business
rent out your house
Sell online
Take surveys
Explanation:
Answer:
1 can be working with a family member and helping them with their work and earning money from that.
2 getting a job that fits your age limit.
3 doing chores around your home.
4 babysitting your siblings or family member and charging a decent fair price.
5 helping with pets or helping around outside
Explanation:
Your friend's dad has a high-stress job, and has high blood pressure as a result. This has caused his arteries to stretch too much, leaving them vulnerable to damage. Which system would be most effected? nervous respiratroy circulatory digestive
Answer:
Explanation: "Warming up and cooling down are good for your exercise performance — you’ll do better, faster, stronger — and for your heart since the increased work on the heart ‘steps up’ with exercise,” said Richard Stein, M.D., professor of cardiology.
The type of energy stored in molecular bonds...
A. radiant
B. thermal
C. chemical
D. nuclear
Answer:
chemical
Explanation:
it's chemical
What can be concluded from the diffraction pattern generated by a single electron fired in the double slit experiment
The double-slit experiment, which was performed with a single electron, resulted in a diffraction pattern. This pattern, according to physicists, demonstrated the wave-particle duality of electrons and suggested that electrons exhibit both wave and particle-like qualities.
This conclusion may be reached from the diffraction pattern generated by a single electron fired in the double slit experiment. In a double-slit experiment, a beam of particles is fired at a screen with two slits in it, generating an interference pattern. An interference pattern is a pattern that occurs when two or more waves interact, resulting in either an increase or a decrease in amplitude. In the double-slit experiment, this pattern is caused by the wave-like nature of the particles. The pattern produced in the double-slit experiment is comparable to the pattern produced by waves passing through two slits and interfering with one another. When an electron is fired through the double slit, it generates a diffraction pattern on the screen behind it, indicating that it behaves like a wave. This indicates that the electron has both wave and particle-like properties.
from the diffraction pattern generated by a single electron fired in the double-slit experiment, it may be concluded that electrons exhibit both wave and particle-like qualities.
To know more about double-slit experiment visit:
brainly.com/question/30452257
#SPJ11
You are building a PV powered water pumping station in Broken Hill (latitude 32° S). You expect that you will need to pump more water in summer than in winter. Which of these angles would be the most appropriate tilt for your solar cells array? 32° 50° 90° 20⁰
The most suitable tilt for a solar array on Broken Hill (32 degrees south latitude) is 32 degrees. This selection is based on the concept of maximizing solar energy production throughout the year. By tilting the solar panels at an angle that matches their latitude, the panels are positioned to receive the most direct sunlight at noon on the vernal equinox, resulting in optimal energy production.
For Broken Hill at 32 degrees south latitude, orienting the solar panels at an inclination of 32 degrees ensures that they match the path of the sun at that particular location. This tilt angle allows the panels to capture maximum sunlight at any time of the year, taking into account the changing sun angle throughout the year.
By optimizing the tilt angle according to latitude, solar panel arrays can maximize energy yields and efficiently power water pumping stations. In this way enough energy is generated in other seasons while covering the high water demand in summer.
To learn more about Latitude:
https://brainly.com/question/31253069
#SPJ4
Which of the following is a definite indicator of a chemical change?
Answer:
Some signs of a chemical change are a change in color and the formation of bubbles. The five conditions of chemical change: color chage, formation of a precipitate, formation of a gas, odor change, temperature change.
Explanation:
Why is there less air pressure at higher altitudes?
Air at higher altitudes doesn't have as much air weighing down on it from above.
Air at higher altitudes is cooler and less turbulent.
The molecules in the air lose mass and are less effected by gravity, significantly lowering their weight
The warmer, lighter air rises bringing cooler heaver air to low altitudes.
Answer:
As ailtitudes rises air pressure drops ...... As altitude increases , the amount of gas molecules in the air decreases - so the air becomes less dense than air nearer to the sea level. So there is less air pressure at high altitudes
calcula el potencial electrico de un punto B que se encuentra a 75cm de una varga positica q=9×10-6c
Answer:
V = 72000 volts
Explanation:
calculates the electric potential of a point B that is 75cm from a positive charge q = 9 × 10-6c
Given that,
Electric charge, \(q=9\times 10^{-6}\ C\)
We need to find the electric potential of a point B that is 75 cm from this charge. The formula for the electric potential is given by :
\(V=\dfrac{kq}{r}\\\\V=\dfrac{9\times 10^9\times 6\times 10^{-6}}{0.75}\\\\V=72000\ V\)
So, the electric potential is equal to 72000 Volts.
Electromagnetic energy
A) is incapable of travelling through outer space.
B) is made up of wavelengths of energy that travel at the same speed.
C) can be seen throughout the entire spectrum.
D) consists of wavelengths which are directly proportional to the temperature of the emitter; i.e., as temperature of the emitting object increases, the wavelength also increases.
E) is emitted in greater amounts at all wavelengths by hotter objects.
Electromagnetic energy can be seen throughout the entire spectrum, and is made up of B)wavelengths of energy that travel at the same speed.
These wavelengths are directly proportional to the temperature of the emitter, meaning that the wavelength increases as the temperature of the emitter increases. Electromagnetic energy is also emitted in greater amounts at all wavelengths by hotter objects. Therefore, the correct options are B, C, D, and E.According to the Electromagnetic Spectrum, electromagnetic energy (EM) is energy conveyed through waves or photons with a varying frequency of electric and magnetic fields. Electromagnetic energy can be seen throughout the whole spectrum. Therefore, C is a valid option.Wavelengths of energy that travel at the same speed make up electromagnetic energy. Therefore, B is a valid option. Electromagnetic energy consists of wavelengths which are directly proportional to the temperature of the emitter; as temperature of the emitting object increases, the wavelength also increases. This demonstrates that D is a valid option.Electromagnetic energy is emitted in greater amounts at all wavelengths by hotter objects. Therefore, E is a valid option. It should be noted that electromagnetic energy is capable of travelling through outer space despite option A which is invalid.
To know more about Electromagnetic energy visit:
https://brainly.com/question/22963020
#SPJ11
An _____________, must meet the same basic requirements (agreement, consideration, contractual capacity, and legality) as a paper contract. Group of answer choices mailed contract e-contract unilateral contract implied contract
An e-contract, must meet the same basic requirements (agreement, consideration, contractual capacity, and legality) as a paper contract.
In today's digital age, e-contracts have become increasingly common and serve as legally binding agreements between parties. Like traditional paper contracts, e-contracts require mutual agreement, where both parties express their intent to be bound by the terms of the contract. Consideration, or the exchange of something of value, must be present for the contract to be valid. Additionally, the parties entering into the e-contract must have the contractual capacity, meaning they are of legal age and mentally competent to understand the terms and obligations involved. Lastly, the e-contract must comply with the laws and regulations governing contracts, ensuring that the agreement's subject matter and purpose are lawful. Therefore, e-contracts are subject to the same basic requirements as paper contracts, providing a legally enforceable framework for online transactions.
Know more about e-contract here:
https://brainly.com/question/30168837
#SPJ11
When you remove a battery and attach the terminals of the ohmmeter to the ends of the circuit, what is the resistance?
Answer: It is the act of measuring internal resistance.
Explanation:
It should be understood that when that action is exhibited, it is towards of measuring the internal resistance.
And it should be noted that, no matter how much or little load we attach to the battery, the voltage at the source's terminals will always stay the same.
Why does mining considered the most important industry?
Answer:
it makes most recourses and gives us most of a materials
Explanation:
A boy rolls a toy car across a floor with a velocity of 3.21 m/s. How long does it take the car to travel a distance of 4.50 m?
Answer:
Time taken for the car to travel a distance of 4.50 m = 1.40 seconds
Explanation:
velocity of toy car = 3.21 m/s
distance travelled by toy car = 4.50 m
Time = ?
\(Velocity = \frac{Distance}{Time} \\Time =\frac{Distance}{Velocity}\)
\(Time = \frac{4.50}{3.21} \\Time = 1.40s\)
Therefore, the time taken for the car to travel a distance of 4.50 m = 1.40 seconds
8. Paige dropped a ball out of a car while her friend Destiny was traveling at a velocity of 25
m/s. The ball underwent a deceleration of -2m/s² and rolled to a stop on the pavement. How
long did it take the ball to stop?
Answer:
I think it's 12.5s
Explanation:
Bare with me, because I just started physics, but I think I have the answer right... Hopefully.
starting with your knowns, we know velocity is 25 m/s from the problem. you also can figure out your acceleration, -2 m/s.
You're looking for the time it takes until the ball stops rolling. Your time is unknown.
Your equation would be a=v/t (acceleration being a, velocity being v, and time being t)
You have to solve for t giving you t=v/a
Now you have to fill in your numbers. t=25m/s divided by -2m/s^2
Your answer should end up as -12.5
You have to solve for your units, but since you're finding time it's pretty straightforward in knowing you're dealing with seconds.
Hope this helped... :) sorry if it didn't-
if a loud machine produces sounds with an intensity level of 110db , what would the intensity level be if the intensity were reduced by a factor of 5?
If the intensity of the loud machine were reduced by a factor of 5, the new intensity level would be 90 dB.
This can be calculated using the formula for decibel levels, which states that the difference in decibel levels is equal to 10 times the logarithm of the ratio of the two intensities. So, if the original intensity level was 110 dB, reducing it by a factor of 5 would result in a new intensity level that is 10 times lower, which is equivalent to a reduction of 20 dB. Therefore, the new intensity level would be 90 dB (110 dB - 20 dB = 90 dB).
If a loud machine produces sounds with an intensity level of 110 dB and the intensity is reduced by a factor of 5, the new intensity level can be calculated using the decibel formula: dB = 10 * log10(I/I₀), where I is the intensity and I₀ is the reference intensity. First, find the original intensity (I) using the inverse formula: I = I₀ * 10^(dB/10). Then, divide the original intensity by 5 and use the decibel formula again to find the new intensity level. The new intensity level will be lower than the initial 110 dB due to the reduced intensity of the sound.
To know about sounds:
https://brainly.com/question/30045405
#SPJ11
What occurs when the moon blocks the view of the sun
Neap tide
Spring tide
Solar eclipse
Lunar eclipse
Answer:
solar eclipse
Explanation:
because at that time, the moon completely covers the path and casts its shadow on earth because it is present between sun and earth's path. so, solar eclipse occurs.
hope it helps :)
Answer:solar eclipse
Explanation:
Top one is right <3
Predict how monarch butterfly populations may compare over time in two locations with very different temperatures.
Answer:
they will increase why because they go from warm cold warm meaning they have to adapt back to the previous location
Explanation: