Answer:
7.5 sec
Explanation:
400 • t = 3000
(the 300 kJ was turned into 3000 J)
divide both sides by 400
400t/400 = 3000/400 ——-> 7.5
The answer becomes 7.5 sec
I hope it helps! Have a great day!
Anygays-
Describe mathematically how two distinct waves each with wave functions like the one in eq. 2 – call them y1 and y2 – will combine. We call this interaction the principle of superposition.
The resultant wave of the different wave functions is = y1 + y2
Calculation of the resultant wave functionsThe principle of superposition states that two waves moving through the same medium, the resultant value of the wave function is the sum of the different wave functions.
Waves superimpose by adding their disturbances,each disturbance corresponds to a force, and all the forces add.
Therefore, the resultant wave of the different wave functions is the addition of both wave functions which is = y1 + y2.
Learn more about waves here:
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Hello people ~
When a comb rubbed with dry hair attracts pieces of paper. This is because the______
(a) comb polarizes the piece of paper
(b)comb induces a net dipole moment opposite to the direction of field
(c)electric field due to the comb is uniform
(d) comb induces a net dipole moment perpendicular to the direction of field
[tex]\bold{Heya!}[/tex]
Answer :-(b) comb induces a net dipole moment opposite to the direction of field.
Explanation :-When a comb rubbed with dry hair it's attracts pieces of piece of paper. This is because the comb that induces of the dipole net that of the moment thatopposite of the field. And, This happens the field dueing to charge of the comb induces of the dipole moment in the paper of the molecules in the dielectric.
Hopefully This Helps ! ~
#LearnWithBrainly
[tex]\underline{Answer :}[/tex]
Jaceysan ~
Answer:
Option B
Explanation:
When a comb is rubbed with dry hair it induces some charge or its get charged either positive or negative
As paper remains in neutral hence it attracts the paper
Hence option B is correct
Community psychologists are not
concerned with worker stress factors.
True
False
Determine an expression for the coefficient of static friction in terms of m2 and m1.
Is it possible for a person to have zero mechanical energy?
Answer:
no
Explanation:
the reading on an electric meter was 2345 kWh, and one month later it was 3456 kWh. how much was the electric bill if the electricity costs $0.10 per kilowatt-hour?
An electric meter reads 2345 kWh and 3456 kWh a month later. At $0.10/kWh, the bill for this energy consumption will be $111.1.
What is a kiloWatt-hour?A kiloWatt-hour (kWh) is a unit of energy equal to one kilowatt of power for one hour.
Step 1. Calculate the energy consumption in one month.The energy consumption will be equal to the difference between both readings.
E = 3456 kWh - 2345 kWh = 1111 kWh
Step 2. Calculate the cost of the bill.The cost of electricity is $0.10/kWh.
1111 kWh × $0.10/kWh = $111.1
An electric meter reads 2345 kWh and 3456 kWh a month later. At $0.10/kWh, the bill for this energy consumption will be $111.1.
Learn more about kiloWatt-hour here: https://brainly.com/question/80087
Which famous astronomer discovered jupiter’s largest moons?.
Answer:
Galileo Galilei
Explanation:
The famous astronomer Galileo Galilei was the one who discovered Jupiter’s large moons.
I hope it helps! Have a great day!
Muffin ^^
Answer:
Galileo Galilei
Explanation:
The great and famous astronomer Galileo Galilei was the one that discovered Jupiter’s largest moons.
I hope it helps! Have a great day!
Anygays-
i need help please!!
Answer:
on the axis ties and greph
Use the passage to answer the question.
Light travels from the stars to Earth. As light travels, it moves through the empty vacuum of space. This is not something that waves do, because they need a medium to travel through, while particles do not. This shows that the particle model is best for explaining this phenomenon.
What is the reasoning in this passage?
(1 point)
Light travels from the stars to Earth.
As light travels, it moves through the empty vacuum of space.
This shows that the particle model is best for explaining this phenomenon.
This is not something that waves do because they need a medium to travel through, while particles do not.
This is not something that waves do because they need a medium to travel through, while particles do not.
How light travels in space?A light travels without any medium while on the other hand, a medium is required for sound waves to move from oe place to another. Sound is a mechanical wave that cannot travel through a vacuum.
So we can conclude that electromagnetic waves like light do not require medium for its propagation.
Learn more about light here: https://brainly.com/question/19697218
Which terrestrial world has the most atmospheric gas?.
Answer:
Venus
Explanation:
It has the most atmospheric gas, and it’s made up of 96% of Carbon Dioxide and around 3.5% of molecular nitrogen.
I hope it helps! Have a great day!
Anygays-
What happens when a mixture is separated
A) A substance is lost
B) A new substance is formed
C) The substances stay the same
D) The mass of the substances change
Answer:
the answer would be c
Explanation:
Why is solar energy a viable alternative energy source
Solar energy is a renewable energy resource that can provide suitable power for the world in general. It is one of the most abundant energy resources on Earth. Amongst the reasons why solar energy is a viable alternative energy are:
Solar Energy as an alternative source of energyIt is a free energy sourceThe sun is the largest source of free energy you can utilize on this planet. It can provide enough power that can supply the world’s electricity needs for a year.
It’s Good for the EnvironmentOne of the primary benefits of utilizing solar energy is that it can provide a clean, green source of power. It is a self-sufficient renewable energy source.
Therefore, solar energy is a viable alternative energy source because it is a renewable source of energy.
Read more on Solar energy:
https://brainly.com/question/17711999
Answer:
It has an endless supply
Explanation:
Pearson Connexus 2023.
Unlike a nonrenewable source of energy such as fossil fuels, solar power is a renewable source of energy that will not run out.
what is the gpe of the ball at position a (20-m high)
Answer:
Explanation:
P.E. = mgh = 7.7 * 9.81 * 20 j
An electromagnetic wave moves through electric and magnetic fields. What is the relationship between the wave and the fields?
Answer:
the electric and magnetic fields that make up an electromagnetic wave are perpendicular (at right angles) to each other. Both fields are also perpendicular to the direction that the wave travels. Therefore, an electromagnetic wave is a transverse wave.
Explanation:
A torsional oscillator has a period of 0.45 s. If its rotational inertia is 0.25 kg-m2, what is the torsional spring constant of its spring
The torsional spring constant of the torsional oscillator (I = 0.25 kg · m² and T = 0.45 s) has a magnitude of 48.738 newton-meters.
How to determine the constant of a torsional spring
The torsional spring constant indicates the resistance of the spring to an external moment. The torsional spring constant (κ), in newtons per meter, can be found by means of this formula in function of the period (T), in seconds and the moment of inertia (I), in kilograms per square meter:
[tex]\kappa = \frac{4\cdot \pi^{2}\cdot I}{T^{2}}[/tex] (1)
If we know that I = 0.25 kg · m² and T = 0.45 s, then the torsional spring constant of the spring is:
[tex]\kappa = \frac{4\cdot \pi^{2}\cdot (0.25\,kg\cdot m^{2})}{(0.45\,s)^{2}}[/tex]
κ = 48.739 N · m
The torsional spring constant of the torsional oscillator (I = 0.25 kg · m² and T = 0.45 s) has a magnitude of 48.738 newton-meters. [tex]\blacksquare[/tex]
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1. The transfer of heat by means of the movement of a substance is known as…
A. Conduction
B. Convection
C. Radiation
D. Transpiration
2). Which form of energy does a plant store when light is transformedduring photosynthesis?
A. Chemical energy
B. Thermal energy
C. Mechanical energy
D. Electrical energy
3.) telephones use electromagnets to change…
A. Electric currents to light waves
B. Electric currents to sound waves
C. Magnetism to light waves
D. Magnetism to sound waves
(( pleaaseee heelp meee))
Answer:
1 A 2 d 3 b. okjajsnsnzbsbsbsbsbExplanation:
okk
what is one watt power?
Answer:
1-watt power is defined as the power produced when 1 Joule of work is done for 1 second.
Explanation:
Hope this helps! Please let me know if you need more help or think my answer is incorrect. Brainliest would be MUCH appreciated. Have a wonderful day!
Answer:
In terms of electromagnetism, one watt is the rate at which electrical work is performed when a current of one ampere (A) flows across an electrical potential difference of one volt (V), meaning the watt is equivalent to the volt-ampere (the latter unit, however, is used for a different quantity from the real power of an electrical circuit).
Explanation:
Hope it helps :)
Pls mark brainleist <3
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`
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Tori
what is the mass of 2.4 moles of water
Answer:
43.2
2.4×18
18 is the molar mass of water
multiply the no of moles with the molar mass to find the mass of the substance
Answer:
43.25 grams
Explanation:
one mole of H2O is 18.02 grams
18.02*2.4=43.248 grams
When the weight moves, it has kinetic energy. Is this energy the result of a transfer or a transformation of energy from the spring? A transfer of energy means that the energy does not change form but is shifted from one object to another.
Answer:
I believe the answer is transformation
Explanation:
Photophores help the animals which zone of the ocean? how do they help?.
What fraction of chlorine-36 remains UN-decayed after 800,000 years?
closed circuit
open circuit
positive end
lightbulb
battery
negative end
battery
lightbulb
break
direction of current
View the images of and open and closed circuit.
a. Explain why the light bulb goes out in the second image. Use the term electron in
your answer.
b. Give an example of a way that we can control the flow of electricity in circuits
around the home.
A. the light bulb goes out once the circuit is open since it causes the flow of electricity to cut off. the light bulb dosent get the energy it needs to light up
Explanation:
B. a simple example of this in our every day life is a light switch. when you switch the light on then the circuit is closed and the energy transfers to the light bulb, when u switch the light off then you cut off the lights source of energy which causes the light to turn off.
if their is no pivot can rular turn? explain?
Answer:
No
Explanation:
Because there won't be any momentum
Answer:
No, because you need momentum and you won’t have any momentum there.
Explanation:
I apologize if it is incorrect-
I hope it helps! Have a great day!
Anygays-
Please help meeeeeeeeeeeeeeee
probabilityAnswer:
2/27
Explanation:
The elk can not be eaten so we remove that from the probablity
so we have x/18
songbird = 4/18
mice = 6/18
4/18*6/18 = 2/27
A hiker climbs a hill 300m high. If she has a mass of 51kg, calculate the work she does in lifting her body to the top of the hill
Answer:
153000J
Explanation:
[tex]work \: done = \: force \times distance \\ force = mass \times acceleration \: due \: to \: gravity \\ = 51 \times 10 \\ = 510newton \\ work \: done = 510 \times 300 \\ = 153000joules[/tex]
What are the differences between tidal power and hydroelectric power?
Thanks to anyone who helped
Answer: With Hydroelectric power water is artificially stored in a high place, so it can be released and flow to a low place and through a generator. With Tidal energy the movement of water is also used to power a generator, but the flow of water is caused by the changing tides.
What do ethical guidelines for research with human subjects mean in psychology?
Explanation:
Research in humans should be based on from library and animal experimentation . Research protocols should be reviewed by an independent committee prior to initiation
PLEAASEEEE HELPP ASSPPP SHORT RESPONSE WILL GIVE BRAINLY
Australia's skin cancer rate is so high. The Australian Health Alliance has asked you to write a short argument that explains this to the Australian public. Remember to
explain how your evidence supports your claim to make your argument as complete and convincing as possible. You can agree with one or both of the claims.
Question: Why is Australia's skin cancer rate so high?
Claim 2: There is something different about the sunlight in Australia.
Claim 3: More people in Australia have skin that is easily damaged by sunlight.
Answer:
Claim 2
Explanation:
Australia's skin cancer rate is so high because of the climate and the weather in their area. It is also because since australia is on the bottom of the globe, the continent recieves higher UV radiation.
Thanks for the brainliest!
1.Australia has one of the highest rates of skin cancer in the world. This is due largely to our climate, the fact that many of us have fair skin that isn't really suited to such harsh conditions, our proximity to the equator (high UV levels) and our social attitudes and love for the outdoors.
2.Australia's unusually harsh sunshine results mainly from its location in the Southern Hemisphere. The elliptical orbit of the Earth places the Southern Hemisphere closer to the sun during its summer months than the Northern Hemisphere during its summer.
3.Basically, through migration, our two countries have been populated by many people with fair skin whose ancestors come from much less sunny climates. Lack of protective pigmentation leaves skin cells especially vulnerable to the DNA-damaging rays from the sun.20 Mar 2018
1. ….. has no definite shape or size
A. Solid
B. Liquid
C. Gas
D. Plasma
2. Distance traveled per unit of time is..
A. Velocity
B. Speed
C. Motion
D. Acceleration
3. The SI unit of pressure is the..
A. Pascal
B. Atmosphere
C. Torr
D. Bar
( please help me)
Answer:
See below ↓↓↓
Explanation:
1. C. Gas
Gases are classified as a state of matter which has no definite shape or sizeLiquids are commonly confused with gases in this manner, but remember liquids take the definite shape of the container if poured in, gases are not so2. B. Speed
As the term "distance" is given, it is definitely speedOn the other hand, if "displacement" was given, then it would be velocity3. A. Pascal
All of the options are units of pressureBut, the SI unit is actually N/m², which otherwise commonly called Pascalwhich statment about scientific knoledge is false
