What energy transformation takes place in a fire?
radiant energy to thermal energy
thermal energy to nuclear energy
chemical energy to thermal energy
Answers
Answer:
Chemical Energy To Thermal Energy
Explanation:
Fire is a chemical reaction. So, because of chemical reactions, the temperature raises to ignition temperature and results as fire. And then it releases photons(that generates heat after being hit by any other matter)
Answer:
Coal is burned at a power plant. The chemical energy released as the coal is burned heats water and turns it into steam.
Explanation:
If that makes since!
Related Questions
Hunter pushed a couch across the room. He did 800 J of work in 20 seconds.
The couch weighed 500 N. How much power did he have?
A. 16,000 W
B. 1.6W
C. 800 W
D. 40 W
Answers
Answer:
\(the \: answer \: for \: this \: question \: is \: d.40w\)
Explanation:
Greetings !Given values Work(W)= 800Jtime(t) = 20 secondWeight = 500Nrequired value power(P) = ?Solution:
Firstly, recall the work-power equation
work=power*timew=p*tsubstitute known values to the equation
(800)=P*(20)Solve, for P (power)
P=40.0wHunter had a power of 40 W while pushing the couch across the room. The correct answer is D. The correct answer is 40W.
Given:
Work (W) = 800 J
Time (t) = 20 seconds
Power is the rate at which work is done or the rate at which energy is transferred. It is calculated using the formula:
Power (P) = Work (W) ÷ Time (t)
Let's calculate the power:
Power (P) = 800 ÷ 20
Power (P) = 40 W
Therefore, Hunter had a power of 40 W while pushing the couch across the room. The correct answer is D.
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The work input = _____.
F i ÷ d i
F o ÷ d o
F o × d o
F i × d i
Answers
The work input = Fi × di
How to solve for work input?To solve for work input, you need to know the force acting on an object and the distance it moves in the direction of the force. Work input is defined as the product of force and distance, given by the formula:
Work Input = Force × Distance × cosθ
Where θ is the angle between the force vector and the direction of motion. If the force is applied in the direction of motion, then θ = 0 and cosθ = 1, so the formula simplifies to:
Work Input = Force × Distance
For example, if you are pushing a box with a force of 50 newtons over a distance of 10 meters, the work input would be:
Work Input = 50 N × 10 m × cos(0°) = 500 Joules
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Answer: F i × d i
Explanation:
GIVING BRAINLIEST TO THE MOST THOUGHTFUL ANSWER
ALSO:
MERRY CHRISTMAS! HAPPY HANUKKAH ALL THAT
Answers
The velocity of the vehicle is equal to 406.5 m/s. The velocity in Km/hr is 1463.4 Km/hr.
What is the velocity?Velocity can be demonstrated as a vector measurement of the direction of the object and the rate of motion of an object. The velocity of an object can be described as the change in the body's position w.r.t. time.
Velocity can be expressed as a vector quantity as it consists of magnitude as well as direction. A mathematical formula common and simplest way to find velocity.
v = d / t
Where v is the velocity, d is the distance covered and t is the time taken by the body.
The S.I. unit for velocity can be represented as m/s and can be expressed in terms of miles per hour (mph), and kilometers per hour (kph).
Given, the distance traveled by the vehicle, d = 100 m
The time taken by vehicle = 0.246 sec
The velocity of the vehicle, v = 100/0.246 = 406.5 m/s
We know that 1km = 1000m then 1 m = 10⁻³ Km
1 hour = 60 ×60 = 3600 s
1s = 1/3600 hr
Therefore, velocity, \(\displaystyle v = 406.5 \times \frac{3600}{1000} Km/hr\)
v = 1463.4 Km/hr
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Velocity = Distance / Time = 100 m / 0.246 s = 406.50 m/s
To convert m/s to km/hr, we need to multiply the velocity by 3.6:
Velocity in km/hr = Velocity in m/s x 3.6 = 406.50 m/s x 3.6 = 1463.80 km/hr
The steps I took to convert from m/s to km/hr were to multiply the velocity in m/s by 3.6, which is the conversion factor between meters per second and kilometers per hour.
When you drop something, first of all it accelerates.
The faster it falls, the bigger the force of ______ that acts on it.
choose from the list to complete the sentence:
friction gravity air pressure
note: apparently the answer is friction but it doesn't make sense to me so please explain.
Answers
The faster an object is going, the more resistance there will be. An example of this would be if you're running the faster you run, the more air is going against you.
I hope this helps!
why do some believe in the concept of evelotion
Answers
Earth's atmosphere is composed of
A.
iron, oxygen, and silicon.
B.
nitrogen, oxygen, and trace amounts of other gases.
C.
water, liquid oxygen, and trace amounts of other liquids.
D.
carbon dioxide, ozone, and magnesium.
Answers
Answer: B
Explanation:
:)
Please can someone help me need help with these 5 questions!! and QUICK!
I need it done REALLLLLYYYYY soon!! (more like now but-)
(20 points for the answer to all of them)
Answers
Answer:
10. dependent as a change has occurred which has affected something else which is measurable.
11. dependent as a change is made to the environment this is why some species cannot live there as they have adapted to the climate.
12. Dependent due to change occurring it has resulted in the population decreasing which is measurable.
13. Dependent as the animal's and plants' survival is reliant on the environment.
14. Dependant as the plants require sunlight for photosynthies
Answer:
All are dependent
Explanation:
How much is the mass of aluminum with a volume of 1 m3 less than the mass of lead of the same volume?
Answers
Answer: the masses:mA=mFe or ρA1VA1=ρFeVFethen use the volume of a sphere. By substitution. The answer is (2.70∗103kg/m37.86∗103kg/m3)(2.00cm)3=23.3cm3
Explanation: you must go from left to right when solving substitutuing the first side then dividing
The transfer of energy by the movement of particles that are in contact with each other
#A Radiation
#B Convection
#C Conduction
#D Thermal energy
Answers
Answer: I belive that the Answer is C.) Conduction
Explanation:
Because it’s conduction because it’s the flow of energy
the Conservation of Momentum states that the momentum of the system before the collision the momentum of the system after the collision
Answers
When looking at the effect of PH on sucrase activity, what was the wavelength of light used in the spectrophotometer?
Answers
Answer:
540 nm
Explanation:
Sucrase is a digestive enzyme. It is the catalyst in the hydrolysis of sucrose into the two subunits that it is made up of namely; fructose and glucose.
Enzymes are known to function best at optimum pH. As the pH of sucrase departs from its ideal pH, its activity decreases.
The activity of sucrose is studied using a spectrophotometer of wavelength about 540nm.
BRAINLIEST
Now that you have done
some research, write a
hypothesis based on the
relationship between zinnias
and the sun. Write it as an
“If ________, then__________”
statement.
Answers
Answer:
If zinnias are exposed to direct sunlight for a sufficient amount of time each day, then they will grow and bloom more successfully compared to those that do not receive adequate sunlight.
Hope my answer helps you ✌️
Mark BRAINLIEST
help with i) and ii) pls >_
Answers
Answer:
4 it the corrcert anser
Explanation:
An object with little mass won't require a lot of force to move.
Group of answer choices
A. False
B. True
C. Only sometimes
Answers
Answer:
True
Explanation:
Heavier objects (objects with more mass) are more difficult to move and stop. Heavier objects (greater mass) resist change more than lighter objects. Example: Pushing a bicycle or a Cadillac, or stopping them once moving. The more massive the object (more inertia) the harder it is to start or stop.
Can you guys please help me out and it would me great if you could explain it too!!
Answers
2. 8N
3. The first box has a net force of 10N
The second box has a net force of 12n
Meaning the the second box has a greater net force
Your science teacher gives you three liquids to pour into a jar. After pouring all of them into the jar, the liquids layer as seen in the image. What property of matter prevents the three liquids from mixing together? answers: density texture color mass
Answers
Answer:
Density
Explanation:
Each of the three liquids have different densities. Have you ever tried to mix oil and water? They don't mix because they have different densities.
Which design will launch the roller coaster car the fastest?
IN CER format
Answers
Answer:
I think Nevi's design will launch the roller coaster car the fastest. The magnets on the launcher and the magnets of the car are set up so opposite poles are facing each other. This arrangement would cause a repelling force, which would launch the car forward.
The relationship between distance from the sun and orbital period is that as the distance from the sun increases, the orbital period increases.
We can see this because as we go through the planets in our solar system, the farther away they are from the Sun, the longer their orbital period becomes. For example, Mercury is about 67 million km away from the Sun and has an orbital period of 88 days, where as Neptune is about 4.5 billion km away from the Sun and has an orbital period of 165 years.
This tells us that as the distance from the sun increases, gravity _________________. Because gravity _______________, the orbital period is __________________.
Answers
Scince HURRY please If you can
If an offspring is produced through sexual reproduction, the offspring’s genetic material is always -
A a copy of the genetic material of one parent.
B identical to the genetic material of its siblings.
C completely unrelated to that of its parents.
D a blend of the genetic material of its parents.
Answers
Answer:
D
Explanation:
It would be half-half because lets say humans. Since it takes two humans to make one baby formed, it would take both the mom and the dads genetics
Answer:
D
Explanation:
half the DNA is the dad and then the mom
Is work done in this example: A student lifting a heavy backpack off of the floor.
Answers
What two gases in the atmosphere do animals and plants need to breathe and grow?
Answers
Answer: Explanation:
Plants and animals each produce the gases that the other needs to live. Plants need carbon dioxide—people and other animals exhale carbon dioxide as a waste product. People and other animals need oxygen—plants produce oxygen during an important process called photosynthesis, which turns the sun's energy into nutrients.
Place the parts of the human circulatory system in order from highest to lowest degree of internal organization.
→ → →
Answers
Answer: The human circulatory system can be arranged from the highest to the lowest degree of internal organization as follows: Heart, Blood Vessels, Arteries, Veins, and Capillaries.
Explanation: The human circulatory system can be arranged from the highest to the lowest degree of internal organization as follows:
Heart: The heart is a vital organ responsible for pumping oxygenated blood to the body and deoxygenated blood to the lungs. It consists of chambers (atria and ventricles) and valves that regulate blood flow.
Blood Vessels: Blood vessels form a network of tubes that transport blood throughout the body. They can be classified into three types: arteries, veins, and capillaries.
Arteries: Arteries are thick-walled blood vessels that carry oxygenated blood away from the heart to various parts of the body.
Veins: Veins are blood vessels that transport deoxygenated blood from the body back to the heart. They have thinner walls compared to arteries and contain valves to prevent backflow.
Capillaries: Capillaries are tiny, thin-walled blood vessels that connect arteries and veins. They facilitate the exchange of oxygen, nutrients, and waste products between the blood and surrounding tissues.
Please note that this arrangement is based on the internal organization of the circulatory system, with consideration given to the hierarchical structure and function of each component.
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Answer:
Cell, tissue, organ and organ system
Explanation:
The correct order from the lowest to the highest degree of internal organization is the following Cell, tissue, organ, and organ system then at last whole body. It is because the cells are produced in order to form the tissues in the body and in order for an organ to be produced tissues are essential and are formed and in order for a system.
Using the formula for work, Match the Force × Distance problems with their correct "Work Performed" answer. The first example has been completed for you.
Force × Distance = Work Performed
10 newtons 6 meters =60 Nm
1. 62 Nm
40 pounds 100 feet
2. 4000ft.-lbs.
2.5 pounds 24 inches
3. 5 ft.-lbs
62 newtons 1 meter
4. 200ft.-lbs.
1 ton 20 feet
5. 40,000 ft.-lbs.
400 pounds 0.5 feet
Answers
2. 4000ft.-lbs = 40 pounds 100 feet
3. 5ft.-lbs = 2.5 pounds 24 inches
4. 200ft.-lbs = 400 pounds 0.5 feet
5. 40,000 ft.-lbs = 1 ton 20 feet
2.4000ft.-Ibs = 40 pounds 100 feet
3. 5ft.-ibs = 2.5 pounds 24 inches
4. 200ft.-Ibs = 400 pounds 0.5 feet
5. 40,000 ft.-Ibs = 1 ton 20 feet
REVISITING MILGRAM’S SHOCKING OBEDIENCE EXPERIMENTS What connection do the authors draw between the teachers’ interactions with the learner and how it affected their actions?
Answers
Answer:
the only affect that the teacher does is tell or show what the learner needs to do they will attempt to do it
Explanation:
the learner will be able to get a specific thing done if show how to do it the learner will do a better job if just told to do it they will do it but not perfect or good kind of blind folding someone and telling the to open a padlock without light.
For this assignment, you will research how to design and build a solar cooker. Search reliable online sites
for “solar cookers.” After getting the materials you need from your teacher, you will present your initial
design as a drawing or illustration. You will then build your device and test its efficiency by warming up a
hot dog until it reaches an internal temperature of 165°F, recording how long it took you to reach this
temperature. Based on your tests, you will make recommendations on how to improve the design of your
solar cooker, and then present your final design and the logic that supports it in a lab report. Your lab
report should include a title, a list of materials that you used to build your solar cooker, a drawing of your
initial design, observations from your experimental tests, recommendations for a final design based on
what you know about radiation, a drawing of your final design, and the results of the efficiency test. To
help you write your lab report, there is a Student Worksheet on the last few pages of this document.
Answers
Answer:
Ideas for Prototype Design
Similar to a cardboard oven just smaller and solar powered
Preliminary Sketches (attach separate paper, if needed)
Option A: i gave the picture
Advantages: Disadvantages:
the tin foil will attract the sun if theres enough heat for the food to warm up
the plastic will keep bugs and/or animal away from getting it it might take longer
the box gives the food something to be in instead of the ground
Option B: i think im going to stay with my original plan i can always make changesMore advantages and disadvantges
Advantages: Disadvantages:
reducing my carbon footprint by alot heat varies so the food my take really really long
using no energy other than the sun.
A meteor falls toward Earth's surface. Given that the acceleration due to
gravity is 9.8 m/s^2, what is the meteor's potential energy if it has a mass of 10
kg at an altitude of 400 m?
O A. 408 J
O B. 7,840,000 J
O C. 2J
O D. 39,200 J
Answers
Answer:
39,200J
Explanation:
just took the test
The meteor's potential energy if it has a mass of 10kg at an altitude of 400 m will be 39200 J
What is potential energy ?Potential Energy that depend upon the relative position of various parts of system . It is an energy possessed by an object by virtue of its position or configuration.
mass(m) = 10kg
g (acceleration due to gravity) = 9.8m/s^2
altitude(height (h)) = 400m
Meteor's Potential energy = m * g * h
= 10 * 9.8 * 400 = 39200 J
correct option will be a) 39200 J
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ANSWER FOR BRAINLIEST PLS AND FAST
Globally, the winter of 2014–15 was the warmest winter on record at that time, but it sure didn’t seem that way for most of the eastern United States. This region experienced record-low temperatures and extreme snowfall, especially in the northern and coastal areas. During this period of extreme cold and snow, it was not uncommon to see comments on social media disputing climate change. For example, some commenters took pictures of huge piles of snow and added comments such as, "This doesn’t look like global warming."
Do these commenters have a point? Should extreme snowfall over the course of a season cast doubt on the theory of global climate change? Make a scientific argument explaining why you agree or disagree with these commenters.
Answers
Answer:
I think the commenters do not have a point. one winter of extreme snowfall or cold temperatures do not effect the realism of climate change and its physical effects to the world such as (global temperature rise, warming oceans, shrinking ice sheets, glacial retreat, decreased snow cover, sea level rise, declining artic sea ice, extreme events, and ocean acidification). Just because we have one cooler summer or one colder winter does not change the facts of the situation.
Explanation:
Don't know if you still need this but this is what I wrote for my PLATO answer.
Hope this helps
These commentators don't make a valid point, though. If this was the warmest winter on record, it would be inaccurate to assert that global warming is not the cause.
What is global climate change?Long-term changes in temperature and weather patterns are referred to as climate change.
Although these changes may be natural, human actions have been the primary cause of climate change since the 1800s.
However, these commentators don't present a convincing argument. It would be incorrect to claim that global warming is not to blame if this winter turned out to be the warmest on record.
Despite snow where they were, there is global warming overall. Just because one location had snow does not mean that all locations will also have it.
It almost seems like they just performed one experiment on one group to get their results.
Which, as we all know, is completely incorrect because it takes at least three groups to provide a measurement that is even remotely accurate.
Thus, this can be concluded regarding the given situation.
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help me pls ill give brainliest thingyy
Answers
You are out and about in the country and your father sees a rock that he really wants in the yard. Now you must get the very heavy rock into the back of a truck. The truck bed is 3 feet off the ground. Your father pulls out a 5-foot plank and begins to set up a ramp. At the same time, you (who know about mechanical advantage!) have found a plank that is 8 feet long, and you show it to your father.
Which plank will give you the most mechanical advantage? Calculate the MA for each plank.
Answers
Plank that is 8 feet long will give more mechanical advantage than 5-foot plank .
What is mechanical advantage?The force amplified by utilizing a tool, mechanical device, or machine system is known as mechanical advantage.
mechanical advantage of a ramp = the length of the slope/ the height of the ramp.
Height = 3 feet ( fixed).
Hence, plank that is 8 feet long will give more mechanical advantage than 5-foot plank because the length of the slope is greater in the case of plank that is 8 feet long.
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Answer is 8 ft so that it is easier to move
Match the Vocabulary terms with their definitions.
Answers
Answer:
1. convert=cause to change in form, character, or function
2. energy conversion=the process through which energy is changed into forms that are useful to humans
3. energy transformation=energy is changed from one form to another
4. energy can neither be created nor destroyed, it can only change forms. the amount of energy stays the same. energy in= energy out