Which metallic substance would require the least amount of thermal energy to melt?
A. Gold
B. Nickel
C. Aluminum
D. Steel
Answers
Answer: C (Aluminum)
Explanation:
Aluminum would require the least amount of thermal energy to melt, because according to the chart, it has the lowest melting point (1218ºF) as compared to the melting points of Gold (1945ºF), Nickel (2646ºF), and Steel (2500ºC).
Related Questions
Answer picture below!!
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Answer:
If you put everything in the same column, then click done when there's two options, it'll put the ones that don't go into the column outside of the boxes and then you can out the remining ones into the other box. If you've already answered this once then it won't work and I'm really sorry for wasting your time. >.<
Use the drop-down menus to complete the statements.
may be parasites, eat dead animals, or prey on insects, slugs, and snails.
eat and break down plant and animal material in soil.
eat other animals or filter food from the surrounding water.
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Answer: Leeches, Earthworms, Marine worms
Explanation:
Sodium is a metal (Na), what makes the Neutral atom of Sodium different
from the lonized atom of Sodium
A neutral atom has more protons than an ion
Neutral atoms have more neutrons than an ion of an tom
Neutral atoms have a charge while ions do not
Neutral atoms have the same amount of protons and electrons while an ion has
either gained or lost an electron
Answers
Answer:
D
Explanation:
An ion is created because an atom doesn't have a balanced number of protons and electrons. A positive ion is created by an atom losing an electron and a negative ion is created by an atom gaining an electron.
After Eris was discovered, scientists had to decide whether to count it as a planet. Why did this make them question whether Pluto should still be counted as a planet?
a
because Pluto and Eris are both space objects
b
because Pluto and Eris were discovered at the same time
c
because Pluto and Eris are very different
d
because Pluto and Eris are very similar
Answers
Answer:
After Eris was discovered, they had to decide whether Eris was a planet or not. If they decided it wasn't a planet, they had to also decide whether Pluto should be counted as a planet since Eris and Pluto were quite similar. They were the same size, and they were both part of the Kuiper Belt.
Explanation:
Planets are the celestial bodies that are not fixed. Pluto should be counted as a planet was a question as both Pluto and Eris were similar.
What are Pluto and Eris?Pluto is now considered a dwarf planet and is found in the Kuiper belt that is present beyond the planet, Neptune. Similarly, Eris is also a dwarf planet.
Eris is the second-largest dwarf planet and is very similar to Pluto. The discovery of Eris questioned whether Pluto should be considered a planet.
Both the planets Pluto and Eris were similar in size and were part of the Kuiper Belt leading to the question of whether they should be a planet or not.
Therefore, option d. Pluto and Eris are very similar.
Learn more about Eris here:
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help help help help!!!!!!!
Answers
Answer:
Sunlight
Explanation:
The Sun is the major source of energy for organisms and the ecosystems of which they are a part. Producers such as plants, algae, and cyanobacteria use the energy from sunlight to make organic matter from carbon dioxide and water. This establishes the beginning of energy flow through almost all food webs.
Perhaps the most brilliant mind of the 18th century was that of:
A.) Robert Hooke
B.) Aristotle
C.) Sir Isaac Newton
D.) Arquimedes
Answers
Answer:
hmm i would have to say either robert hooke or isaac newton
Order the terms according to the path followed by oxygen during cellular respiration.
Answers
The respiration which is seen in plants and higher animals including humans take place in the presence of oxygen.
What is respiration?The process in which the cells of an organism obtain energy by the combination of oxygen and glucose and results in the release of carbon dioxide, water and ATP (energy) is defined as the respiration.
In respiration, the transfer of oxygen occurs from outside environment to cells within the tissues. It is a biological reaction which takes place inside the cells of living organisms. The energy molecule ATP ( Adenosine triphosphate) is created during this process.
The ATP molecule produced here by the breakdown of glucose is utilized by the cells to perform various activities. The first step in cellular respiration is glycolysis which occurs in cytoplasm.
The correct path of oxygen transfer is:
Nostrils → Nasal cavity → Pharynx → Trachea → Bronchi → Bronchiole → Alveoli
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Quickly pleaseeee
I know it's already answered but that was an accident
Answers
Answer:I thiink your right tbh
Explanation:
Answer:
Im 99% sure its sodium and potassium
Explanation:
Hurry
A student uses this diagram to understand the parts of a fish. The student then uses an identification key to classify different types of fish.
Based on the key, which of these fish is most likely a bluegill?
The ferst imige is for the qwestion the rest are the answers
Answers
Answer:
The 3rd image is a blue gill
HELP PLEASE Trying to learn how to do this
I can't figure it out for my students anyone knows
(LOL)
sorry if it is blurry
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Please help me with this I will give out extra points with the brain thing if you help me with this science question 2/5 image below. I promise
Answers
Help asappppppppppppppppppppp
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This is because ammonia is NH^3 and if it has a number before it you multiply it with the rest of the chemical equation.
I hope this helps
the fossils in line 4 __ are the ones in line 1
Answers
Which formation is one feature of karst topography?
caves
kettles
meanders
oxbow lakes
Answers
Answer:
caves, Karst describes a distinctive topography that indicates dissolution. Karst terrains are characterized by the presence of caves, sinkholes, sinking streams, and springs. Understanding caves and karst is important because as much as a quarter of the world's population depends upon freshwater supplied from karst areas.
Explanation:
hope this helps have a good rest of your night :) ❤
The formation that serves as one feature of karst topography is Caves.
Karst topography can be regarded as a landscape with features of cave and sinkhole.
It is usually found in regions that consists plentiful rainfall in which the bedrock have some carbonate-rich rock.
Other characteristics of Karst topography are:
fissures underground streams. SinkholeTherefore, option A is correct because cave serves as as a formation of feature of karst topography
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Describe how fossil fuels are converted into usable energy
:)
Answers
Answer:
Fossil fuel power plants burn coal or oil to create heat which is in turn used to generate steam to drive turbines which generate electricity.
Explanation:
Fossil fuels are used in power plants to make steam. Steam drives turbines which coupled to generator produce electrical energy. Electrical power is used in all industries, domestic used where energy is needed.
petroleum products like oil, gas are used in motor vehicles, ships, airplanes. They burn and give the power for transport.
Fossil fuels are burned under different conditions in engines, boilers, etc which produce heat energy and then converted into mechanical energy.
gas and oil are used to heat homes.
Answer: HEY HAVE A GREAT DAY
fossil fuels are converted into usable energy by first collecting, and then I'm pretty sure its turned into gas and turns turbines.
Explanation:
Fossil fuel are energy buried within the earth that could used as energy source for consumption. Most sources of earth's energy comes from fossil fuels
I DId this in class and asked on brianly
PLS MARK ME BRAINLIEST
Select all of the compounds.
Group of answer choices
water (H2O)
gold (Au)
nitric acid (HNO3)
cobalt (Co)
oxygen (O2)
Answers
H2O
HNO3
Is this true or false
Titanium dioxide is used in sun block and to treat cotton in clothing, but is dangerous for human use.
Answers
happy to help:)
I took a test with that question
How is science based on observation used as evidence? How can evidence be used?
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Answer:
Explanation:
Researchers gather empirical evidence through experimentation or observation. Empirical evidence is information acquired by observation or experimentation. Scientists record and analyze this data. The process is a central part of the scientific method.
Answer:
Science Produces Explanations That Can Be Tested Using Empirical Evidence. Science requires that scientific explanations of phenomena be based on events or mechanisms that can be observed in the natural world. This is how science builds a base of shared observations and ideas to which new knowledge can be added.
Explanation:
Help pls pls pls pls pls pls pls pls?
Answers
Name 3 things that rainforest and deserts have in common
Answers
Answer:
(1) The animals are adapted to survive in the conditions of the environment. (2) Both environments are inhabitable for humans. (3) They can both be deadly
Explanation:
I really hope this helps. Good luck hun
PLEASE HELP!!!!!!!
Answering the following questions will help you to focus on the outcomes of these experiments:
How does the length to height ratio (the IMA) of trial 1 compare to trial 2?
Why is the actual mechanical advantage less than the ideal mechanical advantage in each of the trials?
If a machine was 100% efficient, how would the AMA compare to the IMA?
Write a summary paragraph discussing this experiment and the results. Use the following questions and topics to help guide the content of your paragraph.
According to your data, was your hypothesis correct? (Be sure to refer to your data when answering this question.)
Summarize the conclusions that you can draw from this experiment. Use the questions above to guide your ideas.
Summarize any difficulties or problems you had in performing the experiment that might have affected the results. Describe how you might change the procedure to avoid these problems.
Give at least three examples from everyday life where an inclined plane is used to reduce the effort force needed to accomplish a task.
Question 1: After completing this experiment, was your hypothesis supported? Explain why or why not.
^Experiment^ In this experiment, you will determine the IMA, AMA, and efficiency for the simple machine, the inclined plane.
The materials for this experiment are:
a smooth board
smooth block or other object to drag up a plane
a spring scale (calibrated in newtons)
string
books or blocks to support the inclined plane
and a meter stick.
Your job is to observe the experiment and collect your own data from this demonstration. Be ready to record your observations and data.
You will be pulling an object up an inclined plane at different inclines.
Make and record a hypothesis about how changine the slope of inclined plane will affect the efficiency.
Measure the height and length of the plane, record the measurements.
Measure the mass of the object, and record.
Convert the mass from grams to newtons by dividing by 102, and record.
Now slowly and steadily pull the object up the incline with the spring scale and string kept parallel to the incline.
Record the readout on the scale. This will be the effort force.
Now increase the slope of the incline by increasing the height.
Measure the height of the new incline. The length of the incline remains constant.
Slowly and steadily pull the object up the incline, record the readout from the scale.
Now increase the slope of the incline by increasing the height.
Measure the height of the new incline. The length of the incline remains constant.
Slowly and steadily pull the object up the incline, record the readout from the scale.
Now increase the slope of the incline by increasing the height.
Measure the height of the new incline. The length of the incline remains constant.
Slowly and steadily pull the object up the incline, record the readout from the scale.
Question 2: How does the length to height ratio (the IMA) of trial 1 compare to trial 2?
Why is the actual mechanical advantage less than the ideal mechanical advantage in each of the trials?
If a machine was 100% efficient, how would the AMA compare to the IMA?
^questions to answer^ How does the length to height ratio (the IMA) of trial 1 compare to trial 2?
Why is the actual mechanical advantage less than the ideal mechanical advantage in each of the trials?
If a machine was 100% efficient, how would the AMA compare to the IMA?
Question 3: According to your data, was your hypothesis correct? (Be sure to refer to your data when answering this question.)
Summarize the conclusions that you can draw from this experiment. Use the questions above to guide your ideas.
Summarize any difficulties or problems you had in performing the experiment that might have affected the results. Describe how you might change the procedure to avoid these problems.
Give at least three examples from everyday life where an inclined plane is used to reduce the effort force needed to accomplish a task.
^Questions to answer^ According to your data, was your hypothesis correct? (Be sure to refer to your data when answering this question.)
Summarize the conclusions that you can draw from this experiment. Use the questions above to guide your ideas.
Summarize any difficulties or problems you had in performing the experiment that might have affected the results. Describe how you might change the procedure to avoid these problems.
Give at least three examples from everyday life where an inclined plane is used to reduce the effort force needed to accomplish a task.
Answers
1. yes
2. chemicals
3. 29
4. 1.6
What are the different layers of the Earth, and how do they interact?
Answers
Elastic potential energy is energy due to
Question 2 options:
mass
motion
height above ground
change in shape
Answers
Imagine that you are outside in the cold. Your nose starts to tingle and hurt. What might you be experiencing?
a
fever
b
frostbite
c
a heart attack
d
hypothermia
Answers
How did the peak of Mt. Everest rise from sea level to 8,848 feet?
Answers
Answer:
The height of Everest. Controversy over the exact elevation of the summit developed because of variations in snow level, gravity deviation, and light refraction. The figure 29,028 feet (8,848 metres), plus or minus a fraction, was established by the Survey of India between 1952 and 1954 and became widely accepted.
Answer:
The height of Everest. Controversy over the exact elevation of the summit developed because of variations in snow level, gravity deviation, and light refraction.
Explanation:
Which describes the boundary where earthquake activity occurs along rift valleys?
Answers
Answer:
Divergent boundaries – where two plates are moving apart. Divergent boundaries within continents initially produce rifts, which produce rift valleys. The most active divergent plate boundaries are between oceanic plates and are often called mid-oceanic ridges.
Explanation:
Explain: I learned about it
Please help I will give brainlist
How would you write the formula for sugar-water solution if the formula for salt-water solution is written as NaCl(aq).
The formula for solid salt is NaCl(s).
The formula for solid sugar is C6H12O6(s).
Answers
Answer:
Explanation:
The chemical or molecular formula for sucrose is C12H22O11.
please help!!!!!!!!!!!!!!!!!!!
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Answer:
Your body cells use the oxygen you breathe to get energy from the food you eat. This process is called cellular respiration. During cellular respiration the cell uses oxygen to break down sugar. Breaking down sugar produces the energy your body needs.
Explanation:
Brainly pls
Percolation state of matter, Name and source, and explanation which is definition of Percolation in your own words and shortened
Answers
Answer:Percolare
Explanation:
Answer:
Percolare
Explanation:
A brief summary of Cytokinesis? Its for science plz help fast!
Answers
Answer:
Cytokinesis is the process by which one cell physically separates into two daughter cells at the end of each division cycle. In metazoan cells, the division plane, termed the cell equator, is determined by microtubules of the anaphase spindle.
Explanation: