Can any kind soul help me ASAP
Answer:
9: c
10: B
here are yours answers pal.
Maybe this diagram can help you understand it more clearly. I hope it does. I don't have the first answer but maybe this can help you with the second one.
SOMEONE PLS HELP WITH THESE TWO QUESTIONS
1)Chad’s family just moved into a new home. The sun went down as Chad was moving boxes into the house, so he had to turn on a light to see. Which statements are true about the power Chad used? Choose the two statements that apply.
A. The power he used to move the boxes can be found by determining the rate at which work was done on the boxes.
B. The power Chad used to move the boxes is the force he used times the distance he moved them.
C. The power of the light Chad turned on is the amount of energy changed from electricity to light.
D. The power of the light Chad turned on is the amount of energy transferred per time.
2)Raul dug a hole in his yard to repair a water pipe. It took him 2 seconds to apply a force of 50 Newtons to push the shovel 0.25 m into the ground. How much power was used?
A. 0.01 watts
B. 6.25 J/s
C. 25.00 N•m•s
D. 100.00 watts
Answer:
1.) A and D
2.) B
Explanation:
The power he used to move the boxes can be found by determining the rate at which work was done on the boxes. The power of light Chad turned on is the amount of energy transferred per time. So the correct options are A and D. In 2nd, the power used was 6.25 J/s. So the correct option is B.
What is power?
The watt, denoted by the letter W, is the common unit used to measure power. James Watt, a Scottish businessman and inventor, is honoured with the unit's name. The watt is certainly a term you frequently encounter in daily life. Electrical devices like light bulbs and stereos commonly advertise their power output in watts. One watt is equivalent to one joule of work performed each second by definition.
Horsepower is another power unit that is still extensively used. This was first used to describe the ability of a regular horse to spin a capstan in the 17th century and is often represented by the sign hp. Since then, a metric horsepower has been defined as the force needed to raise a 75 kg mass a metre in one second, where 75 kg is the mass's weight in kilogrammes.
Therefore, for 1) the correct option is A and D and for 2) the correct option is B.
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An enzyme in a cell became dysfunctional because of an alteration. As a result, the DNA strands would not separate to begin the replication process. Which enzyme has been affected?
Answer:
C. Helicases
Explanation:
Helicases to be termed as enzymes that is blind and contains acid i.e. remodel nucleic or have protein i.e. nucleic acid. It is important as the time of DNA replication as it divided the DNA i.e. double stranded into one single standard that permits each and every strand for copied it
Also it cracks the bonds i.e. hydrogen that lies between the two strands this could create a replication fork.
Therefore in the given case, the helicases is affected
Answer:
helicases
Explanation:
its just right
Prior to 1850, the melanic form of the peppered moth in Europe was:______.
Explain the formation of sedimentary rocks?
Plz help me
Answer:
Clastic sedimentary rocks are made up of pieces (clasts) of pre-existing rocks. Pieces of rock are loosened by weathering, then transported to some basin or depression where sediment is trapped. If the sediment is buried deeply, it becomes compacted and cemented, forming sedimentary rock.... ༶•┈┈⛧┈♛♛┈⛧┈┈•༶Hope it helps you....Thanks....
༶•┈┈⛧┈♛♛┈⛧┈┈•༶. Distinguish between gross primary productivity and net primary productivity. Explain how net primary productivity affects the number of consumers in an ecosystem and on the earth. List two of the most productive ecosystems or aquatic life zones and two of the least productive ecosystems or aquatic life zones. Use the concept of net primary productivity to explain why harvesting plants from estuaries, clearing tropical forests to grow crops, and harvesting the primary producers in oceans to feed the human population are not good ideas.
Answer and Explanation:
The gross primary productivity corresponds to the sum of all the energy produced by the plants (primary producers) during the photosynthesis process. The net primary productivity, corresponds to the gross primary productivity value, even the energy value used by the plants in the metabolic processes that they present, in this way, we can conclude that the net primary productivity is the energy that is available for the living beings that consume the vegetias.
The ecosystems with the highest level of productivity are those that have a large number of vegetables with full access to the sun, in this case, we can mention forests and ecological parks. On the other hand, ecosystems with lower levels of productivity are those with a low number of plants, such as cities and areas with deforestation.
Because of our need to consume energy from net primary productivity, we are constantly harvesting vegetables and some photosynthetic water products to use in our food. However, this causes us to remove vegetables from nature and decrease the amount of gross primary productivity that ecosystems would have, and, consequently, decreasing the amount of net primary productivity that we need so much.
What do you think of when you hear the word science
Answer:
Science is the pursuit and application of knowledge and understanding of the natural and social world following a systematic methodology based on evidence.
Explanation:
How do macrophages fight pathogens?
Answer:
They release antibodies to protect the body. They produce antigens to protect the body. They break down the pathogens that enter the body. They respond to a future invasion of the same type of pathogen.
Explanation:
hope i helped?? :))
<3
- pun
Answer:
With Acid
Explanation:
The first line of immune defense against invading pathogens like bacteria are macrophages, immune cells that engulf every foreign object that crosses their way. After enclosing it in intracellular membrane vesicles, a process called phagocytosis, macrophages kill their prey with acid.
Shivering when you get too cold is an example of which two concepts you learned about? (there are two answers) evolution metabolism homeostasis stimulus-response
:What do we need to figure out next to explain what essential elements are found in
large molecules?
Answer:
sorry I don't have this answer
Pick the list with correct order
"Phylum Class,Order Species"
2
"Kingdom, Class Phylum, Genus"
"Class, Order, Family, Genus"
4
"Class, Family,Order, Genus"
34. The molecules that form much of the cell membrane are
Answer:
With few exceptions, cellular membranes — including plasma membranes and internal membranes — are made of glycerophospholipids, molecules composed of glycerol, a phosphate group, and two fatty acid chains. Glycerol is a three-carbon molecule that functions as the backbone of these membrane lipids.
Explanation:
Give an example of how politics can affect science?
Answer:
Politics can affect and even dictate the manner in which science is done. For example, passing laws that limit whether embryos can be used in stem cell research. Politics can allocate funding to various scientific causes. Politics can create a great research environment in the universities. And so on.
In extremes, politics can even make entire areas of science off limits. In the early twentieth century, lots of very smart and decent people were eugenicists. Politics (in particular, the unbelievable moral horror that was Nazism and the Holocaust) change
Which two processes would most likely cause metamorphic rocks to change into sediments?
compaction and erosion
O cementation and weathering
O erosion and weathering
O heating and compaction
Answer:
erosion and weathering
Explanation:
Two processes that would most likely cause metamorphic rocks to change into sediments are erosion and weathering.
What is a sedementary rock?A sedementary rock is a rock that is formed by the breakdown and compaction of other rocks. Hence sedementary rocks are a sort of secondary rocks.
It then follows that, two processes that would most likely cause metamorphic rocks to change into sediments are erosion and weathering.
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What causes the seasons
The tilt and rotation of the earth as it orbits the sun.
Plants remove carbon from the atmosphere in the form of CO2 and store it in their structures. How can rapid deforestation affect the carbon cycle? What can be done to reduce the effects? Explain.
Answer:
Explanation:
Deforestation affects carbon cycle through the Greenhouse gas effect and global warming. Green plants, trees and forest helps to balance the amount of Carbon in the atmosphere, carbondioxide is used up by plant through the process of photosynthesis in which plants make their own food. When there is excess amount of carbon dioxide in the atmosphere as a result of deforestation ‘blanket’ of carbon dioxide is formed which traps heat and prevents it from leaving the earth surface in the atmosphere. This accumulated heat leads to global warming in the environment.
More trees should be planted to prevent rise in atmospheric a carbon and deforestation should be prevented.
Answer:
Deforestation has an effect on the Carbon Cycle also known as the Greenhouse gas effect and global warming. Trees and forest balance the amount of Carbon in the atmosphere through the process of photosynthesis in which plants make their own food with carbon dioxide. And when we remove the plants that turn CO2 into breathable air we have more CO2 over all.
13. The DNA found in prokaryotes and eukaryotes is an example of which
biomolecule? *
O Lipid
O Nucleic Acid
O Nitrogen
O Carbohydrate
Answer:
DNA is an example of the biomolecule nitrogen.
Which nutrient is not found in the atmosphere (in significant amounts)?
Answer:
Phosphorous
Explanation:
Phosphorous is an essential nutrient for plants and animals, but is not very common in the biosphere. This nutrient is found in soil and rock, but does not enter the atmosphere.
What is the purpose of greenhouse gases?
Answer:
A greenhouse gas (sometimes abbreviated GHG) is a gas that absorbs and emits radiant energy within the thermal infrared range. Greenhouse gases cause the greenhouse effect[1] on planets. Without greenhouse gases, the average temperature of Earth's surface would be about −18 °C (0 °F),[2] rather than the present average of 15 °C (59 °F).[3][4][5] The atmospheres of Venus, Mars and Titan also contain greenhouse gases.
Explanation:
What is the negative control and positive control in a presumptive blood test?
Answer:
Test a known bloodstain as a positive control and a blank (filter paper) as a negative control (see interpretation of results to determine a positive and negative result).
A web of proteins in the cyoplasm that help support, anchor organelles and also help with movement is the __________.
Answer:
The cytoskeleton
The cytoskeleton functions to create a network organizing the cell components and to also maintain the cell shape. It also provided a uniform movement of the cell and its organelles, by the filament system network found in the cell's cytoplasm.
Hope this helps u...
How can you analyze data using various types of graphs?
(Science)
plz help
will give the brainliest!
Urgent!!
Answer:
3B
4A
5a) hormones: regulatory substances produced by a body to stimulate cells into action. secreted: produced endocrine glands: a chemical message network that regulates hormones.
5b) A: Insulin, B; Adrenaline, C: Testorone, D: Oestrogen.
What is unique about carbohydrates
Answer:
Explanation:
Carbohydrates are the only fuel source metabolized fast enough to support hard exercise. Fiber is a carbohydrate.
What atom exists in all macromolecules
carbon, the fundamental component for all the macromolecules.
3 uses
of surface tension
Answer:
»Some of the uses of surface tension :-
1) Surface tension allows insects (e.g. water striders), usually denser than water, to float and slide on a water surface.
2) Surface tension is an important factor in the phenomenon of capillarity.
3) Surface tension has the dimension of force per unit length, or of energy per unit area.
tomato onion pcece of meat balace and basin
In the cell cycle typical cancer cells, mutations have most likely caused
A.uncontrolled growth
B.a halt in cell division
C.a failure in mitosis
D.slower growth
Answer:
This process is akin to searching for the proverbial needle in a haystack, because many of the mutations present in these cells have little to nothing
Explanation:
During mitosis, normal cells undergo checkpoints that monitor the fidelity of the processes that occur during the cell cycle. Uncontrolled cell growth refers to the breakdown of these regulatory checkpoint mechanisms.
In the cell cycle of typical cancer cells, mutations most like cause UNCONTROLLED GROWTH (Option A).Apoptosis refers to the programmed cell death that prevents the uncontrolled growth of cancer cells.In cancer cells, genes that control apoptosis during the cell cycle suffer mutations, thereby leading to uncontrolled cell growth.In conclusion, in the cell cycle of typical cancer cells, mutations most like cause UNCONTROLLED GROWTH (Option A).
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How does an organisms life begin?
Answer:
Living organisms undergo growth and development. Every living organism begins life as a single cell.
Answer:
The life of an animal organism, obviously, begins at conception. But human life begins only at the moment that the animal has a mind. In some, very fast, developers this can happen before the age of one year; in a large majority of cases this happens between two and three years of age.
Explanation:
What is the first stage of the nuclear fuel cycle? WILL GIVE BRAINLY AND 22 POINTS Fuel production Uranium mining Reprocessing Disposal
Answer is uranium mining.
Answer:
THE NUCLEAR FUEL CYCLE STARTS AS THE MINING OF URANIUM.IT THEN ENDS AT DISPOSAL OF NUCLEAR WASTE.WITH THE PROCESSES I NG OF USED FUELS AS AN OPTION FOR NUCLEAR ENERGYWhy is prior knowledge so important in science?
A)
Prior knowledge helps other scientists to view your work as more valid.
B)
Prior knowledge limits your exploration of a topic, this allows scientists to
stay focused
C)
Prior knowledge allows you to make a well-informed hypotheses and
better-planned experiment.
Prior knowledge gives you preconceived ideas on a topic, this can direct
which way your results should go.
D)
Why is prior knowledge so important in science?
C)
Prior knowledge allows you to make a well-informed hypotheses and
better-planned experiment.
What is prior knowledge how does it influence learning?Prior knowledge has long been considered the most important factor influencing learning and student achievement. The amount and quality of prior knowledge positively influence both knowledge acquisition and the capacity to apply higher-order cognitive problem-solving skills.
What is prior knowledge mean?Prior knowledge is defined as all the knowledge one has before learning about a particular topic
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