Answer:
D:
Explanation:
Conduction because the heat energy is transferring directly from the separate metals convection involves "currents" like in a liquid or a gas. When you turn on the stove with a pot of water on the burner the water at the bottom of the pot gets heated first almost immediately this water rises and cooler water falls. Basically the water is "stirring" or shifting, exchanging the heat energy this is why water heats so evenly.
Answer:
D
Explanation:
The heat transfer that we'll have will be:
- At first, the metal bar will emanate heat through radiation, to the atmosphere, and to the second metal, through conduction.
- Because of this, the second bar will start to increase it's temperature, up to the fusion point, spending the energy received on the fusion, and also radiating heat to the atmosphere. It won't emit heat in any other form, since heat transmission can happen only from a hot body to a cooler one, and the only things in contact are the two bars.
If we continue to use fossil fuels at the current rate, they will run out. If they run out, which of these products will we still be able to produce? A) Diesel V) Gasoline C) Electricity D) Plastics
Answer:
C) Electricity
Explanation:
Can I please have some help?
And if you can could you explain how exactly I add the numbers?
Answer:
360nm
Explanation:
Answer:
It is 360Nm
Explanation:
Hope this helps love :)
100 POINTS AND BRAINLIEST NO CAP IF YOU WRITE THIS CORRECTLY AND DECENTLY IF YOU HAVE A QUESTION PUT IT IN THE COMMENTS NOT AN ANSWER PLS
You have learned that power is the speed, or rate of doing work. In this report you will learn more about James Watt or horsepower.
Here is your goal for this assignment:
Complete an activity on power
Complete one of these activities:
1. Research the life of James Watt. Report in about fifty words some of the important events in Watt's life leading up to the watt being named in his honor.
2. Conduct a survey of equipment and cars to find out the amount of horsepower of each item you check. You may visit a car dealer, an appliance store, a heavy-equipment dealer. Make a list of the horsepower of at least ten items of equipment. Some suggestions include: comparing two or three different makes of cars or finding the horsepower of a lawn mower, boat, vacuum cleaner, or some heavy equipment for moving dirt. You may find that the power of a washing machine or vacuum cleaner is given in watts instead of horsepower. Make a chart to record your findings, including:
Type of Equipment Surveyed: (Indicate whether it is a car, shovel, vacuum cleaner, etc.)
Amount of Horsepower or Watts: (Record power in horsepower or in watts.)
Power is the rate at which work is done. James Watt is a famous engineer and inventor who developed the steam engine.
Who is James Watt?He improved the efficiency of the engine by adding a separate condenser, which reduced the amount of fuel needed. In his honor, the watt was named after him as the unit of power.
For the activity, here is a suggestion; conducting a survey of equipment and cars to find out the amount of horsepower of each item you check. You may visit a car dealer, an appliance store, a heavy-equipment dealer.
Make a list of the horsepower of at least ten items of equipment. Some suggestions include: comparing two or three different makes of cars or finding the horsepower of a lawn mower, boat, vacuum cleaner, or some heavy equipment for moving dirt. You may find that the power of a washing machine or vacuum cleaner is given in watts instead of horsepower. Make a chart to record your findings, including:
Type of Equipment Surveyed: (Indicate whether it is a car, shovel, vacuum cleaner, etc.)
Amount of Horsepower or Watts: (Record power in horsepower or in watts.)
Find out more on horsepower here: https://brainly.com/question/28994705
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For each of the following four topics, write a paragraph answering the questions below each topic. This exercise should help you decide which topic on which you would prefer to write.
1.Compare and contrast a sport that is played in two different parts of the world. Describe how differently it is played in the two regions, and the impact it has on the two societies.
a. What interests you about this topic?
b. What sport and regions do you think you would choose and why?
c. How would you go about getting information on this topic?
Being interested in a certain topic wants to study (or emerge as concerned with) that subject matter for its personal sake.
Describe how differently it is played in the two regions.dual sports activities are performed by two human beings opposing every different, while crew sports contain prepared companies of people competing in opposition to every different.twin sports are performed through two people opposing every different, while team sports activities involve organized businesses of humans competing with every other.Many sports activities rely on desires, which might be points scored in soccer, lacrosse, and floor hockey, whilst other sports activities depend upon points with a landing, runs, or falls.Learn more about team sports here:-
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How many total atoms in the chemical formula CaCO2?
A.2
B.3
C.4
D.5
E.6
Explanation:
Calcium carbonate is a molecule that contains one atom of calcium, one atom of carbon, and three atoms of oxygen.
According to the passage, carbon dioxide is the most abundant greenhouse gas on Earth. What is the leading cause of Carbon Dioxide rising in the last 100 years?
Answer the question using the CER strategy. Be sure to use evidence from source 1 and 2.
Answer:
Human activities, especially the burning of fossil fuels like coal, oil, and natural gas, are primarily to blame for the rise in carbon dioxide levels over the past 100 years. Carbon dioxide is produced as a byproduct of combustion when these fossil fuels are burned for transportation, industrial processes, energy production, and other uses. Together with other greenhouse gases, this human-caused release of carbon dioxide has significantly boosted atmospheric carbon dioxide concentrations, causing the greenhouse effect and amplification of global warming and climate change.
Explanation:
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.
Answer: B
Explanation:
:)
Countries around the world are trying to slow down or reverse the effects of climate change. Based on what you know about the greenhouse effect, which of the following actions would be likely to slow the rise in Earth's average temperature?
Answer:
Greenhouse gases would warm the earth up causing global warming
Explanation:
To solve this we must be knowing each and every concept related to greenhouse effect. Therefore, greenhouse effect would be likely to slow the rise in Earth's average temperature.
What is greenhouse effect?The Earth's surface is heated by the greenhouse effect all the way up to the troposphere. Higher concentrations of methane, carbon dioxide, and other gases cause it to occur.
The energy from the sun's heat is reflected back into space as infrared radiation when the Earth's surface cools. The concentrated gases inside the greenhouse effect absorb energy, raising the earth's temperature as a result. Thus, there is a link between the global warming and the greenhouse effect. Greenhouse effect would be likely to slow the rise in Earth's average temperature.
Therefore, greenhouse effect would be likely to slow the rise in Earth's average temperature.
To know more about greenhouse effect, here:
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he primary coil in a transformer has 250 turns; the secondary coil has 500. Which is correct?
a. This is a step-down transformer.
b. The voltage in the secondary coil will be higher than in the primary.
c. The power in the secondary coil is greater.
d. The power in the primary coil is greater.
Answer:
b
Explanation:
hope its help po #carry onlearning
What are the positive and negative effects of the mountain-climbing trade on the local environment and economy? 3-5 sentences, please thx
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.
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!
Discuss one component of your school's recycling system that could be automated and predict the economic impact.
One component of my school's recycling system that could be automated is the sorting of recyclables. Currently, the school relies on students and staff to sort recyclables into the appropriate bins, which can be time-consuming and may result in contamination if materials are not sorted properly.
Automating the sorting process with a machine or conveyor belt system could improve the efficiency and accuracy of the recycling system. It could also potentially reduce labor costs associated with manual sorting.
The economic impact of automating the sorting process would depend on the initial cost of the equipment and any associated installation or maintenance costs. However, over time, the improved efficiency and accuracy of the system could result in cost savings for the school. Additionally, the increased efficiency of the system could potentially lead to increased recycling rates, which could result in cost savings for waste disposal and potentially generate revenue through the sale of recycled materials.
Answer:
Our school has color coded virtual trash cans. For example, a trash can for only paper will only accept paper items, if the item put inside is not paper, it will litter it out and all students have cleaning duties throughout the week so even if you or someone litters you’ll probably have to clean it up at some point anyways. I honestly think it’s very cool. (i wish this was true smh).
Find the force required to make pressure of 2400 Pa when it is acting on a surface of 2 m 2
Answer:
4800 N (newtons)
Explanation:
to find the force we need to multiply the pressure with area
2400 x 2m 2 = 4800 N
2400 . 2 = 4800
100% IT'S CORRECT
Iron(III)oxide reacts with carbon monoxide to produce iron and carbon dioxide
- How many moles of iron (Fe) are produced from 1.8 moles of iron(III)oxide (Fe2O3)?
- Using your answer from the question above, how many molecules of iron is present in
that number of moles ?
Answer:
- 3.6 moles Fe
- 2.2 x 10²⁴ molecules Fe
Explanation:
First, you need to create the balanced chemical equation.
The unbalanced equation:
Fe₂O₃ + CO -----> Fe + CO₂
Reactants: 2 iron, 4 oxygen, 1 carbon
Products: 1 iron, 2 oxygen, 1 carbon
The balanced equation:
Fe₂O₃ + 3 CO -----> 2 Fe + 3 CO₂
Reactants: 2 iron, 6 oxygen, 3 carbon
Products: 2 iron, 6 oxygen, 3 carbon
Now that we have the balanced equation, we can use the mole-to-mole ratio (from the equation coefficients) to convert from moles Fe₂O₃ to moles Fe.
1.8 moles Fe₂O₃ 2 moles Fe
-------------------------- x ---------------------- = 3.6 moles Fe
1 mole Fe₂O₃
We can convert between moles and molecules using Avogadro's Number.
Avogadro's Number:
6.022 x 10²³ molecules = 1 mole
3.6 moles Fe 6.022 x 10²³ molecules
--------------------- x ------------------------------------- = 2.2 x 10²⁴ molecules Fe
1 mole
List three evidences that show that the Bible is the Word of God.
Answer:1.God tells us that He is the Author (2 Peter 1:20-21 Open in Logos Bible Software (if available) & 2 Timothy 3:15-17 Open in Logos Bible Software (if available))
1.The Old Testament and New Testament Authors understood they were writing the Word of God. Common Old Testament phrase – “Thus saith the Lord”. The Apostle Peter confirmed the Apostle Paul’s writings as Scripture (2 Peter 3:16)
3.Its Historical Accuracy – as verified by archeology, which has never contradicted the Bible, but only confirms and silences its critics.
Explanation:
Answer:
Many people question who the author of the Bible is and wonder if the Bible is really the Word of God. I want to give you five reasons to affirm that the Bible is God's Word.
The Word of God: Evidence that Scripture is Divine
First, I believe the Bible is the Word of God because of its scientific accuracy. The Truth of the Word of God tells us that God “hangeth the earth upon nothing” (Job 26:7). How did Job know that the earth hung in space before the age of modern astronomy and space travel? The Holy Spirit told him. The scientists of Isaiah’s day didn’t know the topography of the earth, but Isaiah said, “It is [God] that sitteth upon the circle of the earth” (Isaiah 40:22). The word for “circle” here means a globe or sphere. How did Isaiah know that God says upon the circle of the earth? By divine inspiration.
Secondly, the Bible is affirmed through historical accuracy. Do you remember the story about the handwriting on the wall that is found in the fifth chapter of Daniel? Belshazzar hosted a feast with a thousand of his lords and ladies. Suddenly, a gruesome hand appeared out of nowhere and began to write on a wall. The king was disturbed and asked for someone to interpret the writing. Daniel was found and gave the interpretation. After the interpretation, “Then commanded Belshazzar, and they clothed Daniel with scarlet, and put a chain of gold about his neck, and made a proclamation concerning him, that he should be the third ruler in the kingdom.” (Daniel 5:29). Basing their opinion on Babylonian records, the historians claim this never happened. According to the records, the last king of Babylon was not Belshazzar, but a man named Nabonidas. And so, they said, the Bible is in error. There wasn’t a record of a king named Belshazzar. Well, the spades of archeologists continued to do their work. In 1853, an inscription was found on a cornerstone of a temple built by Nabonidas, to the god Ur, which read: “May I, Nabonidas, king of Babylon, not sin against thee. And may reverence for thee dwell in the heart of Belshazzar, my first-born favorite son.” From other inscriptions, it was learned that Belshazzar and Nabonidas were co-regents. Nabonidas traveled while Belshazzar stayed home to run the kingdom. Now that we know that Belshazzar and Nabonidas were co-regents, it makes sense that Belshazzar would say that Daniel would be the third ruler. What a marvelous nugget of truth tucked away in the Word of God!
Explanation:
help me pls i need the answer
Which of the following is the primary function of groundwater?
A. fighting fires
B. supplying homes with drinking water
C. irrigating crops
D. mining
Answer:
irrigating crops
Explanation:
Which effect is created when two sound waves that are close in pitch
interact?
O A. Echoes
O B. Loudness
C. Beats
O D. Intensity
Answer:
C. Beats
Explanation:
When waves are interfering with each other, the sound is louder in some places and softer in others. As a result, we hear pulses or beats in the sound.
Answer:
beats
Explanation:
got it right
How does the sport curling relate to Newton’s Second Law of Motion?
Curling is a sport in which players slide stones across a distance of ice toward a target area. The purpose is to accumulate the loftiest score for a game by making monuments rest closest to the center of the target at the end of each side. There are two brigades. Each platoon is trying to keep the other platoon's monuments down from the target by knocking their monuments out of the way.
Newton's Second Law " The acceleration of an object is directly commensurable to the net force acting on it and is equally commensurable to its mass. The direction of the acceleration is in the same direction as the net force acting on an object." This relates to the formula F = ma. The mass of the determinedness monuments in curling is 38 to 44 pounds or 17.3 to 20 kg. The thing of the sweepers is to control the acceleration of the gravestone by reducing disunion on the ice, which affects the force with which the gravestone is suitable to impact the other monuments.
Know more about Newton’s Second Law of Motion.
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HELP WITH THIS Q PLEASE?
Answer:
specific heat capacity = heat transferred /change in temperature
=2.11 •10^4/6.8-98
=0.02 • 10^4
I need help on this please!
Answer:
i think it is no interference
Explanation:
because both of the arrows haven't interfered. If you look up some of the pictures of each answer choice that is on your question, it will have that picture shown.
All the organelles in a cell work together to help the cell and the whole organism function. Some diseases are caused by the failure of one type of organelle. Read the description below of an example of this type of disease.
Lauren has cystic fibrosis. Her body is unable to control the flow of salt into and out of her cells. Lauren’s symptoms include coughing and wheezing when she tries to exercise. She receives breathing treatments that let her swim, dance, and sing. Which organelle is affected by Lauren's disease?
A. endoplasmic reticulum
B. cell membrane
C. cytoplasm
D. cell wall
_____ causes rocks to have smooth surfaces after wind carries sediment
A water
B sand dune
C ice
D abrasion
b or d.................
Answer:
D. I'm pretty sure it's supposed to be water instead of wind.
Explanation:
.........
Where do the Sun’s rays hit Earth’s surface nearly at right angles?
Answer: The Equator
Explanation: The Equator is the place on Earth that is the most exposed to the sun rays throughout the year, which is why the climate is constant and without changes in this part of the world. The Equator always gets the sun rays at right angle, or very near the right angle.
Compare and contrast acids and bases. Tell what happens when they are mixed together. (with reason)
Answer#2:
When mixed, acids and bases neutralize one another and produce salts, substances with a salty taste and none of the characteristic properties of either acids or bases.
Explanation:
Answer#1
Acids give off H+ (Hydrogen) ions in water; bases give off OH- (Hydroxide) ions in water. Acids generally taste sour due to the sour H+ ion; bases taste bitter due to the OH- ion; but they may have other tastes depending on the other part of the molecule. ... Acids have a pH less than 7 ; Bases have a pH greater than 7.
Matthew and his dad are walking along the beach. Matthew runs toward the water and dips his hands in the cool ocean. Then, he walks back to his dad and grabs his hand. “Matthew, your hands are so cold now!” his dad exclaims. Where did conduction occur during this scenario?
A. between Matthew’s warmer body and his now cooler hand
B. between Matthew’s hand and his father’s hand
C. between Matthew’s warm hand and the cool water
D. between Matthew's father's hand and the cooler water
Answer:
C.
Explanation:
the process by which heat or electricity is directly transmitted through a substance when there is a difference of temperature or of electrical potential between adjoining regions, without movement of the material.
Answer:
C. between Matthews hands and the cold water
Explanation:
because the scenario was when Matthews hand went to the cold water
Please someone help with all of these 3
Answer: Because they all share the same square root
Explanation:
h = 6.63 × 10−34 J.s = 4.136 × 10-15 eV.s
Answer:
A=12 B=36 C=1 D=36
Explanation:
this is a Science question pls help give 15 coins for answer
Answer:
its recreational
Explanation:
HELP WITH THESE TWO PROBS PLEASE
Answer:
1. She is moving at a speed of \(147.18 ms^{-1}\).
2. The speed of the golf ball is \(78.1 m/s\).
Explanation:
1. We can say , at any moment the skydiver is having a kinetic energy of \(1/2 mv^2\)
(where, \(m\) is her mass and \(v\) is the velocity at that point)
Given, \(1/2mv^2 =704000\)
and, \(m = 65KG\)
So, putting the values we get,
\(v=147.18 ms^{-1}\)
2. \(KE=\frac{1}{2} mv^2\)
\(143.3J =\frac{1}{2} (.047)v^2\)
\(v^2=6097.9 m^2/s^2\)
\(v=78.1 m/s\)
Huan wants to enter the science fair at his school. He has a list of ideas for his project. Which questions could be answered through scientific investigation? Check all that apply. Does pressure have an effect on the solubility of a substance? Which physicist was the smartest? Is the information on the periodic table difficult to understand? Which brand of soap is the best for cleaning grease off of dishes? Which laboratory experiment is the most fun to perform?