Answer: D
Explanation:
The statement that can be a scientific theory is tiny particles termed atoms are fundamental unit of matter. Thus, option D is correct.
What is a scientific theory?A scientific theory is given as the explanation of the facts and phenomenon of the world with the scientific laws and concept. The scientific theory thereby enables the scientists to evaluate what will be form if the theory is true.
The scientific theory are the facts and laws, thereby the example can be tiny particles termed atoms are fundamental unit of matter. Thus, option D is correct.
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Which option is an example of a physical model?
O A. A clay ball with a slice cut out, showing the layers of Earth
B. A graph of the relative thicknesses of Earth's layers
OC. A mental image of the solar system
O D. A computer weather map created by Doppler radar
Answer: A. A clay ball with a slice cut out, showing the layers of Earth.
If a motorist moves with a speed of 30 km/hr, and covers the distance from place A to place B
in 3 hours 30 minutes, find the distance between places A and place B.
Answer:
105 km
Explanation:
The motorist was going 30 km/hr, and it took 3 hours 30 minutes. That's 3.5 hours. 3.5×30=105
What is cooking with a fossil fuel? What is a fossil fuel?
Answer:
I know what fossil fuel is a natural fuel such as coal or gas, formed in the geological past from the remains of living organisms.
Explanation:this is all I know
Answer:
Explanation:
A fossil fuel is a fuel formed by natural processes, such as anaerobic decomposition of buried dead organisms, containing organic molecules originating in ancient photosynthesis that release energy in combustion. Such organisms and their resulting fossil fuels typically have an age of millions of years, and sometimes more than 650 million years. Fossil fuels contain high percentages of carbon and include petroleum, coal, and natural gas. Peat is also sometimes considered a fossil fuel. Commonly used derivatives of fossil fuels include kerosene and propane. Fossil fuels range from volatile materials with low carbon-to-hydrogen ratios (like methane), to liquids (like petroleum), to nonvolatile materials composed of almost pure carbon, like anthracite coal. Methane can be found in hydrocarbon fields alone, associated with oil, or in the form of methane clathrates.
Which best explains why a firework being ignited is an example of an exothermic reaction and not an endothermic reaction?
The fireworks produce colors.
The fireworks give off heat.
Igniting the fireworks requires energy.
Igniting the fireworks makes an odor.
Answer:
B. Fireworks give off heat.
As the firework releases heat, it is considered as exothermic reaction. The correct option is B.
What is exothermic reaction?An exothermic reaction has been one in which the energy has been required to break bonds in the reactants has less than the energy released when the new bonds form in the products. Energy has been constantly released during an exothermic reaction, often in the form of heat. Exothermic reactions has been characterize all the combustion reactions.
Endothermic reactions has been known as the chemical reactions that produce products by absorbing heat energy from their surroundings. Exothermic reactions has been important in the forensic science, particularly in the investigation of the fires and explosions.
Endothermic has been refers to the chemical reaction that it requires heat and results in the cooling of the surroundings. As fireworks are the releasing energy in the form of the heat, it can be called as an exothermic reaction.
Therefore, As the firework releases heat, it is considered as exothermic reaction. The correct option is B.
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Why would the women in the following scenarios choose shoes made with totally different materials?
Deborah is a marathon runner who uses her running shoes in all weather during different times of the year. Marsha is a grandmother who wears her running shoes on warm days to play outside with her granddaughter.
Materials have specific properties that allow them to be useful in some situations and not in others.
Materials that are synthetic are not always favored by younger people.
Materials are not always sustainable and may undergo superficial changes.
Materials are being invented all the time and do not always meet a consumer’s specifications.
Answer:
A
Explanation:
The other answers dont make sense to the question
Answer:
Materials have specific properties that allow them to be useful in some situations and not in others.
Explanation:
p+m+85/7-a+d=?
Explain and answer
Answer:
dm me i will tell u
Explanation:
Answer:
its m+b=c your welcome <3
Explanation:
Which of the following questions best represents applied science?
Create an algorithm to determine the weight of a rod in units of pound-force on the surface of Callisto, Jupiter’s moon. You may assume that the user of algorithm will provide the volume of the rode in units of cubic meters. Your algorithm may assume that the specific gravity is 4.7 and gravitational acceleration on Callisto is 1.25 meters per second squared. As a test case, you can assume the user has a rod with a volume of 0.3 cubic meters.
After reading the following paragraph, what conclusion most accurately characterizes a police officer’s career?
After graduation from the police academy, some police agencies provide police training officer, or PTO, programs. PTO programs focus on many phases of training, each focusing on some aspect of the policing process. Problem-based learning, critical thinking, problem solving, and teamwork are also emphasized. Throughout a police officer’s career, training continues to occur. Called in-service training, this training helps to sharpen the officer’s skills and improve the quality of police work that an officer can provide to the community. Some of this training covers skills like firearms training or self-defense, but a wide choice of electives can be chosen, as well. These electives include computer and equipment skills, interview and interrogation skills, domestic violence, problem-solving skills. Most police agencies require that their officers participate in in-service training every year. Training can be tailored to the particular needs of the department’s officers, so that the skill set of each officer is developed to meet needs of the community.
A police officer will be given more legal jurisdiction over time
A police officer will be given more authority over time
A police officer will repeat many stages of training
A police officer will be engaged in lifelong learning and training
Answer:
b on edge
Explanation:
Scroll saw blades break
O very seldom
O when forcing the wood through the blade
O when dull
Answer:
when forcing the wood through the blade
Explanation:
Scroll saw blades are used for making delicate curves through the woods, especially when making edges. These are pedal-operated and are considered as power tools.
Nevertheless, it is also common for some people to break their scroll saw blades. The number one reason behind this is the force or tension caused by forcing the wood through the blade. Thus, it is very important to learn the trick of applying appropriate pressure when using this tool.
Do you think the gender issue is because "woman can't do construction work? or do you think there are other reasons for this type of thinking?
ANSWER FAST AND I WILL GIVE BRAINLIEST What is the measurement of this square?
A. 0.75
B 1.75
C 0.34
Answer:
0.75
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What do electrons have to do with electrical current?
Answer:
Electrons in atoms can act as our charge carrier, because every electron carries a negative charge. If we can free an electron from an atom and force it to move, we can create electricity.
If management does not "buy in" to the plan, what might happen?
A:Reduce confidence
B:Nothing will change
C:Increase confidence
D: Management will be fired
Answer:
A
Explanation: The other three answers would be unreasonable.
Select four materials that engineers use most often in their design process.
fur
dirt
wood
glass
rubber
metal
What is the woodworking band saw used for?
Answer:
✅WoodWorking is a power saw with a long, sharp blade consisting of a continuous band of toothed metal stretched between two or more wheels to cut material. They are used principally in woodworking, metalworking, and lumbering, but may cut a variety of materials.
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how are speed and acceleration related
Which option identifies the type of power system Tommy will design in the following scenario?
Jack has just begun a new painting company. He currently has a machine to spray paint on walls, but it often clogs and is not always consistent. His brother Tommy is currently in school to become a mechanical engineer. Jack asks Tommy to help design a paint gun that will work more efficiently.
a thermodynamic system
a pneumatic system
a hydraulic system
a propulsion system
Answer:
I think it is a pneumatic system
Explanation:
answer: pneumatic system
Jonathan is asked to design an eco-friendly animal crate. The crate must be durable, cost-effective, and beneficial to the health of the animal. Discuss at least three materials that could be considered for this project, and give reasons why you would or would not choose them.
Explanation:
Wood, plastic, and rubber. The crate needs strong materials in order to contain the animal. Wood is the most cost effective, but padding is required to prevent the animal from getting hurt. Plastic is also ideal, very strong and is very easy to manipulate and manufacture for any need. Rubber is the most comfortable, and can cushion the animal to prevent injury. Rubber can be cut, so it is best to use it for smaller and more docile animals.
What is capillary action? A) The act of using a solvent to clean a car part B) The ability to get into small spaces and reduce friction points C) The adhesion of water molecules grabbing at the walls of a vessel, drawing the water upward even against the effects of gravity D) When water breaks down dirt without the use of soaps or other cleaners
A refrigerator operates on a average of 10 hours a day. If the power rating
of the fridge is 700 w how much electrical energy does the fridge use in one day
Answer:
60480 kW
Explanation:
The first step in calculating energy consumption is to know how many watts your device consumes per day.
The refrigerator operates on average of 10 hours per day.
The refrigerator ratings is : 700 w , this means 700 joules per second
1 second = 0.000277778 hours
? seconds= 10 hours
Perform cross product as;
( 10 * 1) / 0.000277778 = 36000 seconds
So,
700 joules = 1 second
? = 36000 seconds
Perform cross product as;
( 700 * 36000) /1 = 25,200,000 joules
25,200kW = 10 hours
? = 24 hours -----for 1 day
(25,200 * 24 )/10
=60480 kW
I’m building a robot in class and I have to name it what should I name it
1. Thech bot ev3
2. Boop bot
Answer:
Personally, I prefer the first one.
Explanation:
Which of these is a scientific question
Answer: B
Explanation: it can be answered with testing unlike the others
I WILL GIVE BRAINLIEST IF ANSWER FAST What is the measurement of this dial caliper?
A. 4.044 inches
B. 4.045 inches
C. 4.44 inches
You are developing a mind map for measuring the viscosity of fluid. At which stage in the process will you specify the equipment needed for the experiment?
Answer:
C- define the subtopics.
Explanation:
Answer:
C
Explanation:
Provide a brief defense of why the field of engineering is a great career path.
Answer: Yes, becoming an engineer is a great career path.
Explanation: You get to help solve problems that are important to society. You do many things including, controlling and preventing pollution, developing new medicines, exploring worlds, and developing advanced technologies for others to use.
What is the measurement of this square?
A.075
B. 1.75
C. 0.34
Answer:
0.75 in
Explanation:
The 1 inch measure has 16 divisions.
Find the measure of 1 division as: 1/16 = 0.0625 in
The side length of the square has 12 divisions
1 division = 0.0625 in
12 divisions = 0.0625*12 = 0.75 in
The correct answer choice is A. 0.75.
Answer choices B is incorrect because from the diagram, it is clear that the side length of this square is less that 1 inch.
Answer choice C is incorrect because 0.34 in will mean 0.34/0.0625 divisions. This is 5 divisions, yet the square side length covers 12 divisions.
Which option supports the following scenario? Molly has always tried to use sustainable materials in her project designs. She is now designing a new children’s toy and must decide which materials to use. Most toys are made from plastic, but these are not usually recyclable. She knows the toy must be safe, chemical-free, and sturdy. She meets with her team to research other options.
Answer: Molly will have to add nanotechnology to the process and design a new material to fit the needs of this project.
Explanation:
Answer:
The answer would be B
Explanation:
Just did the quiz on EDG 2021 , Engineering!!
NEED HELP WILL MARK BRAINLEST!
What is the relationship between artificial satellites and astronomy?
Satellites are only used by astronomy employees of government agencies.
Satellites are only used by astronomy faculty for research.
Astronomers are dependent upon satellite technology.
Satellites are one type of technology used by astronomers for research.
The answer is satellites are one type of technology used by astronomers for research.
I took the assignment and got it wrong the first few times, but that answer was correct.
Answer:
Satellites are one type of technology used by astronomers for research.
Explanation:
The rest of the answers are not correct. Because satellites are just one of the tools astronomers use. Therefore D is Correct.
PLEASE ANSWER THIS ASAP!
Which construction material can workers erect at the fastest rate?
____ is the fastest construction material to erect.
Answer:
Onsite construction can certainly begin more quickly when you are using concrete, stone, or brick. However, total construction time will lag behind that of building with steel. These materials require time to prepare and cure; and they result in more waste to move off site and dispose of.
Answer:
I think it is sand but I'm not sure .