Answer:
Heat supplied should be equal to zero.
Explanation:
Given that a compressed gas is held inside a canister with a moveable lid. The temperature of the gas is significantly higher than the air temperature outside the canister. When weight is removed from the lid, the gas
expands to lift it.
For this expansion to be as nearly adiabatic as possible, one of the conditions that should be met is that there should be no supply of thermal or heat energy to the system.
According to first law of thermodynamics:
Change in internal energy = heat supply + work done by the system
If heat supplied = 0
Then, nothing is constant.
The internal energy = work done by the system.
Therefore, no heat should be supplied to the system.
Weight is best described as
A) an object’s resistance to acceleration.
B) what causes an object to fall.
C) the downward force exerted on objects due to gravity.
D) a force solely dependent on an object’s mass.
Answer:
d
Explanation:
Answer:
d
Explanation
a force solely dependent on the object’s mass
typhoons without water soon run out of energy.
true or false
Answer:
true
Explanation:
(PLEASE answer ASAP, Will give brainliest)
Coasting along at 7.8m/s, a 60.0kg bicyclist on a 7.00kg bicycle encounters a small hill. If the she coasts uphill until coming to a stop, how high up the hill did she travel? (b) What height would the bike reach if she had gone to the store and had 5.50kg of groceries before coasting up the hill?
Please show your work.
Answer:
v²=u²+2as
0²=(7.8)²+2×9.8×s
s=60.84/19.6=3.1m she travel 3 .1m high.
weight=m×g=
what is the shape of the path traversed by the earth around the sun?
Answer:
The shape of the path transverse by the Earth around the sun is called an ellipse
Explanation:
:)
what are the 3 types of family goals
Alex rides on a bike that starts from rest and accelerates to a speed of 20 m/s in 8 seconds. What is Alex’s acceleration? with steps please
Answer:
2.5m/s
Explanation:
a = [tex]\frac{(vf - vi)}{t}[/tex]
vf = final velocity = 20m/s
vi = initial velocity = 0m/s (alex is starting "at rest")
a = acceleration =
t = time = 8s
a = [tex]\frac{(20-0)}{8 }[/tex] = 2.5m/s
Sally's mass on Earth is 50 kg. What is her mass on the moon?
Answer:
Being that the moon has a gravitational force of 1.622m/s 2, we multiply the object's mass by this quanitity to calculate an object's weight on the moon. So an object or person on the moon would weigh 16.5% its weight on earth. Therefore, a person would be much lighter on the moon. Conversely, a person is 83.5% heavier on earth than on the moon.
Explanation:
does this help
Sally's mass on Moon is: C. 50 kg
Mass is a measure of the amount of matter that an object or a body is typically made up of. The standard unit of measurement for the mass of an object is kilograms (kg).
Regardless of the location of a person, an object at any given time, mass (amount of matter that they're made up of) is always the same i.e constant.
This ultimately implies that, whether you're on the Moon, space, planet Earth or any other place; your mass would always remain the same or constant.
In this scenario, Sally's mass on Earth is 50 kg. Thus, we can deduce that her mass on Moon would be 50 kg.
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what is refusing to take part in any activity or behavior that puts your health?
Answer:
Explanation:
Here are some simple do’s and don’ts for kids who refuse to do work: Don’t just punish. If a child or young adult is struggling with some social or emotional challenges at the moment, a punishment is only going to push them away further. Your punishment will appear as harsh, mean, and uncaring.The patient's failure to keep appointments. Patients make appointments, then cancel them at the last minute, or don't show up at all. From the provider's perspective, that means a window of no income in addition to the fact that the patient isn't getting the help he or she needs. A patient's rude or obnoxious behavior.
462.3 cm - 25.74 cm
Answer:
436.56 centimeters
Explanation:
heart this! My answer is correct, I search it.
How would you explain to a 5 year old how to make their hands move to show each type of plate boundary with their hands. Convergent (2 ways to move your hands, to make mountains /to show subduction). Divergent (1 way to move your hands). Transform (1 way to move your hands)? Gosh, my teacher needs 3 paragraphs.
Answer:
Theirs plenty of ways to move you´re hands. You can make you´re hands wave like the ocean and as well make them move together to create a sound which is called clapping.
You can move your hands by poking your fingers together or you can hide your face by putting your hands on your face. You can also play peek a boo while you hide your face by taking you´re hands off you´re face.
Their is many ways to move your hands, They have big words for it too. The big words would be Convergent, Divergent and Transform.
That´s the many ways to move the hands.
Explanation:
GIMME BRAINLIEST PLZ I TOOK TIME ON THAT I HOPE ITS CORRECT. :))
which one isnt a part of he respiratory system?
bronchioles
lungs
bronchi
alveoli
colon
Answer:
Colon isn't a part of respiratory system
When the distance between two objects doubles, what happens to the gravitational attraction between these two objects?
Answer:
As indicated by Newton's law of attraction each article or body in the universe draws in every single item towards one another and that power of fascination is straightforwardly relative to the result of their masses and contrarily corresponding to the square of the distance between them.
The power of gravity between two articles will diminish as the distance between them increments. The two most significant elements influencing the gravitational power between two items are their mass and the distance between their focuses. As mass increments, so does the power of gravity, however an increment in distance mirrors a reverse proportionality, which makes that power decline dramatically.
At that point by Newton's All inclusive Law of Attractive energy;
F=GMm/R^2
Mm= result of the majority
R=Distance Between the two masses by focus.
On the off chance that R is multiplied, new force=GMm/(2R)^2
=GMm/4R^2
Unique Power/New Force=4/1
F/4=New Power
State the Law of Electric Charges in your own words.
[tex] \\ [/tex]
According to Coulomb, the electric force for charges at rest has the following properties: Like charges repel each other; unlike charges attract. Thus, two negative charges repel one another, while a positive charge attracts a negative charge. The attraction or repulsion acts along the line between the two charges.
Things that are negatively charged and things that are positively charged pull on (attract) each other. This makes electrons and protons stick together to form atoms. Things that have the same charge push each other away (they repel each other). This is called the Law of Charges.
[tex] \\ [/tex]
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Which shows the correct lens equation?
Answer:
The inverse of f equals the inverse of d Subscript o Baseline plus the inverse of d Subscript I Baseline.
Explanation:
Explanation:
Answer: The answer is most likely the first one, but I may be wrong.
Explanation:
In music, the note G above middle C has a frequency of about 392 hertz. If the speed of sound in the air is 340 m/s, what is the approximate wavelength of this note?(1 point)
1.2 meters
8.7 meters
0.87 meters
0.0026 meters
Answer:
0.87 meters
Explanation:
A horizontal pipe of diameter 0.933 m has a smooth constriction to a section of diameter 0.5598 m. The density of oil flowing in the
pipe is 821 kg/m3. If the pressure in the pipe is 7220 N/m2 and in the constricted section is 5415 N/m2, what is the rate at which oil is flowing?
Answer in units of m3/s.
Answer:s
Explanation:
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The dark lines appear due to the absorption of light by gas elements.
true or false
what are the examples of non viscous liquid
[tex] \\[/tex]
Two isotopes of helium ( helium 3 and helium 4) show superfluidity whem they are liquified by cooling to a very low specific temperature. One isotope of rubidium and lithium posses this property at low temperature.
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what is aerobic activities
Answer:
Aerobic exercise is any type of cardiovascular conditioning. It can include activities like brisk walking, swimming, running, or cycling. You probably know it as “cardio.”
By definition, aerobic exercise means “with oxygen.” Your breathing and heart rate will increase during aerobic activities. Aerobic exercise helps keep your heart, lungs, and circulatory system healthy.
Aerobic exercise differs from anaerobic exercise. Anaerobic exercises, such as weightlifting or sprinting, involve quick bursts of energy. They’re performed at maximum effort for a short time. This is unlike aerobic exercises. You perform aerobic exercises for a sustained period of time.
Explanation:
Aerobic exercise is physical exercise of low to high intensity that depends primarily on the aerobic energy-generating process. "Aerobic" is defined as "relating to, involving, or requiring free oxygen", and refers to the use of oxygen to adequately meet energy demands during exercise via aerobic metabolism
What is the man’s weight on Mars where the acceleration due to gravity is 3.7 m/s2?
Answer:
8.14n in mars
Explanation:
gravitational
Select the correct answer from each drop-down menu.
Heat always flows from a
place to a
place.
Heat always flows through from a higher thermodynamic potential to lower thermodynamic potential.
What is thermodynamics?It can be defined as the branch of science that deals with the interactions of thermal energy across different system and their surroundings.Thermodynamics does not deal with the rate of energy interaction.The movement of the thermal energy depends on the thermodynamic potential of the respective objects or bodies in which the flow of the thermal energy is involved.
The thermodynamics potential is analogous to the electrical potential what is used to flow the current in the electrical circuit in the similar fashion the temperature gradient is the driving force that is used for the transfer of heat energy from a higher temperature potential to the lower to a temperature potential.
This natural flow of heat is valid only when any external work is not done on the thermodynamic system where transfer of heat taking place .
This principle of heat transfer is not applicable in the case of refrigerator and air-conditioner because in that case some external work is done on the system and is the natural driving force of heat transfer.
Hence,we can say that heat always flows through from a higher thermodynamic potential to lower thermodynamic potential unless until some external prime mover is provided for example in case of air conditioner.
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Below is a diagram of the orbits of the inner planets examine the diagram and answer questions three and four 
Answer:
C is the answer
Explanation:
Earth is the third planet from the sun
you are cheating on your test, I know
Answer:
C..
Explanation:
I'm not sure about answer...
hari planted to go abroad. change into negative
Answer:
Hari didn't plan to go abroad
Explanation:
Abroad planned to go to hari.
how does electic motor and generator work?
Answer:
the answer is below
Explanation:
When an electrical current is applied to the motor, the magnets or windings create a magnetic field that both attracts and repels the rotor, causing it to spin. ... Rather than using electricity to create motion, electric generators in Lethbridge convert mechanical energy into electrical energy.
An electric motor is a machine that transforms electrical energy into mechanical energy.
It is made up of a magnet (typically a permanent magnet) and an electromagnet that are both situated close to each other.
The magnet generates a magnetic field, whereas an electromagnet is created by transmitting an electric current via a wire coil.
A magnetic field is created around the coil when an electric current travels through it. The Lorentz force is exerted on the coil as a result of the interaction between the magnetic fields of the coil and the magnet. This force causes rotational motion in the coil, forcing it to revolve.
An electric generator operates on the electromagnetic induction principle.
It is a device that transforms mechanical energy into electrical energy. A generator's essential components are a wire coil and a magnet (often an electromagnet).
The lines of magnetic force travelling through the coil vary when the coil is rotated inside the magnetic field.
Thus, as defined by Faraday's law of electromagnetic induction, this shift in magnetic flux creates an electromotive force (EMF) or voltage in the coil.
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Give two example of conditions when two objects (Object A=1 kg and Object B =10 kg) would have the same momentum.
Answer:
they can have the momentum if only they are been divided by another number to see the difference
A racecar's motion is shown in the graph. If the race car begins moving faster how old a line on the graph change?
A. It would become steeper
B.It would become horizontal
C.It woukd go down instead of up
D.It would go up and then go down
Move the balloon very close to the wall, but don't touch the wall. Then let go. What happens to the balloon?
Answer:
it lets out the air inside the balloon and I´m pretty sure it would hit the wall while the air was being let out.
1. Why are the outer planets called “gas planets?”
Answer:
They are also called the gas planets because they consist mainly of hydrogen, or the giant planets because of their size. These planets usually have complicated system of many moons and often even rings of ice and/or dust. There are four Jovian planets in the Solar System: Jupiter, Saturn, Uranus and Neptune.
Answer:
They are also called the gas planets because they consist mainly of hydrogen, or the giant planets because of their size. These planets usually have complicated system of many moons and often even rings of ice and/or dust. There are four Jovian planets in the Solar System: Jupiter, Saturn, Uranus and Neptune.
Explanation:
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Of the following, the greatest gravitational force would occur between
A) a marble and a baseball 5 meters apart .
B) a loaded freighter on the high seas and Earth.
C) the moon and an astronaut standing on the moon.
D) the moon and Earth.
The greatest gravitational force would occur between the moon and Earth. The correct option is D.
What is Gravitation?The force of gravity, also known as gravitation, affects every material object in the universe. The force of gravity tends to draw any two objects or particles with nonzero mass toward one another. Gravity operates on objects of all sizes, from subatomic particles to clusters of galaxies.
The two forces, which are equal in strength and move in the opposite direction, pair up to interact with various objects. As a result, the pull of Earth on the Moon is equal to and opposes the pull of the Moon on Earth.
Amongst the given options the greatest force is between the moon and the earth.
Hence, the greatest gravitational force would occur between the moon and Earth. The correct option is D.
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A car travelling at 10 m/s has 75 kJ of KE. Calculate the car’s mass.
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Answer:
[tex]k.e = \frac{1}{2} MV {}^{2} \\ 75 = \frac{1}{2} m10 {}^{2} \\ \frac{75}{100} = \frac{1}{2} m \\ \\ 0.75 \times 2 =m \\ m = 1.5kg[/tex]
the mass of car is 1.5kg