If a power plant uses 100 units of energy to create electricity and the output is 5 units, 95% of the energy input goes as lost as heat.
Could you ever create a machine where 100% of the input energy would turn into output energy?No, a real machine can't have an efficiency of 100%. An efficiency of 100% means that there is no loss and the output energy (or work) of the machine is equal to input energy (or work). In real machines, there is always some loss of energy to overcome friction and air resistance.
How do you calculate the energy efficiency of a power plant?To express the efficiency of a generator or power plant as a percentage, divide the equivalent Btu content of a kWh of electricity (3,412 Btu) by the heat rate. For example, if the heat rate is 10,500 Btu, the efficiency is 33%. If the heat rate is 7,500 Btu, the efficiency is 45%.
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Will give brainliest
Answer:
D
Explanation:
70 plus 30 = 100%
what is the food that cat CAN'T eat 1.chocolate
2.milk
3.yogurt
4.salt
select 2 of them
Answer:
MILK
AND
CHOCOLATE
MARK ME AS BRAINLIST
Answer:
Chocolate & salt....the other two r milk products, so it's fine for cats.
Determine if the following statement is true or false, and why. “Everyone who
carries a faulty allele develops a disease."
A. False, it should read, "No one who carries a faulty allele develops a disease."
B. False, it should read, "Some people who carry a faulty allele develop a disease, some
are carriers."
C. True
D. False, it should read, "No one who carries a faulty allele becomes a carrier."
The statement "Everyone who carries a faulty allele develops a disease" is absolutely false. This is because some people who carry a faulty allele develop a disease, some are carriers. Thus, the correct option is B.
What is an Allele?An allele may be defined as one or two or more alternative forms of a gene. An individual always inherits two alleles, one from each parent that shows characteristic traits for any given genomic location where such variation exists.
If the two alleles are the same, the individual is homozygous for that allele. While, if the two alleles are non-identical, the individual is heterozygous for that allele.
It is not possible that everyone who carries a faulty allele develops a disease because it depends on the expression of the disease, whether it is dominant or recessive, sexual or autosomal, etc.
Depending on the same principle, some are affected by the disease when both alleles have the same traits while some are carriers.
Therefore, the correct option for this question is B.
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Name the carbohydrate which forms cell wall
Answer:
Cellulose
hope this answer helps you...
How can an offspring have a trait that neither parent
has?
Answer: How might it be possible for you to show a trait when neither of your parents show the same trait. It can be carried to you when the chromosomes combine even if the parents don't possess the same trait It can skip and be dominant for you so you would be able to see it in your genetic make up.
Explanation:
Which of the following do genes NOT do?
А
provide instructions for how a person grows
B
control how a person looks
C
decide whether or not a baby is born
D
get passed down from parents to children
Answer:
c.) decide whether or not a baby is born
Explanation:
I hope this helped you:)
state how facilitated diffusion is achieved describe ways
Answer:
The polar membranes/ions go through the protein to bypass the hydrophobic tails, which are "afraid" of charged molecules.
Glucose passes through the protein because it's too big to diffuse on its own.
I hope this information was very helpful.
Which ACTN3 genotype (RR, RX, or XX) would provide these Olympic marathon athletes with an advantage, and why?
Answer:
XX
Explanation:
ACTN3 genotype i.e. XX provides advantage to the Olympic marathon athletes because it strengthens the fiber of the muscles. This gene is also called the gene of speed. This ACTN3 gene has a great influence on the type of fiber that makes body muscles, and they are also linked to strength and endurance so we can conclude that this gene provides benefits to the Olympic marathon athletes by giving strength to the fiber of muscles.
ACTN3 genotype is the gene encoding for the actinin of the skeletal muscle fibres. XX of the ACTN3 genotype will be advantageous for marathon athletes.
What is ACTN3 genotype and XX?ACTN3 genotype is the gene encoding for the protein of the skeletal muscles fibres that are associated with muscular performance. This protein is expressed in the myofibers with a high twitching ability and result in a high-velocity force.
The XX genotype provides strength to the muscles and is the gene coding for the proteins that give speed. They are also responsible for endurance and are beneficial for athletes.
Therefore, XX of the ACTN3 genotype is advantageous for athletes.
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The transport of water through a plant depends on roots absorbing water. Roots depend on osmosis to obtain water. In osmosis, water always a. Moves from a high concentration to a lower concentration b. Moves from a lower concentration to a higher concentration c. Moves so that the concentration of water on one side of the cell membrane is higher than on the other side d. Moves until there is no water left on one side of the cell membrane
i need help on fiding a plant that is really interesting and different and show me the picture please
suggest why an MRSA infection may have to be treated with many different antibiotics
Answer:
A trio of antibiotics that had become powerless against MRSA decades ago proved effective in infected mice when used together.
Although more testing is needed, the results suggest that combinations of already-approved antibiotics might add to our options to combat MRSA infections.
Explanation:
what is wrong with this statement?: sperm and egg cells go through mitosis and divide a total of 1 time
Urgent!!!
What are wholesale sales?
O Large orders that receive a discount.
O Everything that is included in a single order to a customer.
O Sales made in bulk to another business.
O Sales of generic-brand or out-of-season items.
Answer:
Sales made in bulk to another business
For what cellular function does the breathing rate help regulate?
Answer: The respiratory system works with the circulatory system to provide this oxygen and to remove the waste products of metabolism. It also helps to regulate pH of the blood. Respiration is the sequence of events that results in the exchange of oxygen and carbon dioxide between the atmosphere and the body cells. The main purpose of respiration is to provide oxygen to the cells at a rate adequate to satisfy their metabolic needs. This involves transport of oxygen from the lung to the tissues by means of the circulation of blood. brainliest?
Explanation:
Question 4
Nearly 30 percent of the native flora in the United States is considered to be of conservation concern. Without human intervention, many of these plants
may be gone within our lifetime. For the native birds and mammals of the United States to survive, plant life must be conserved. What product of
photosynthesis do plants provide to all animals?
Your answer:
Oxygen
Carbon Dioxide
Light
Hydrogen
Clear answer
Question 5
Answer:
Oxygen
Explanation:
PLEASE HELP NO LINKS PLEASE
Which term best completes the diagram below?
nucleus
cell
molecule
O muscle
PLZZ HALP Put the following terms in order from the most specific to the broadest (1-9).....
Organelle....Organ....Macromolecule....Atom....Organism....Cell....Organ system....Molecule....Tissue
Answer:
molecule → macromolecule → organelle → cell → tissue → organ → organ system → whole organism.
Explanation:
What is one of the biomolecules for which nitrogen is needed (hint: they help build muscles)?
One of the biomolecules for which nitrogen is needed and that build muscles are the proteins, and the nitrogen is also found in the DNA and RNA that are present in the cells.
What is the significance of the nitrogen in the protein?Proteins play many important roles in the body, including building and repairing tissues, and nitrogen is a critical component of proteins, as it is incorporated into the molecule as a part of the amino acids. Without nitrogen, proteins would not be able to form and perform their many important functions so a diet that is rich in protein is important for athletes and bodybuilders to build and repair muscle tissue.
As a result, of the biomolecules for which nitrogen is needed and that build muscles are the proteins, and the nitrogen is also found in the DNA and RNA that are present in the cells.
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The rabbit reproduces sexually. If the
parent cells have 16 chromosomes,
how many chromosomes do the rabbit
sex cells have?
Disease causing bacteria is called??
Decomposers
Toxic
Pathogenic
Nonpathogenic
Answer:
Pathogenic
Explanation:
How do animals help recycle carbon atoms?
Answer:
animals, oxygen combines with food in the cells to produce energy for daily activity and then gives off carbon. The carbon combines with oxygen to form carbon dioxide (CO2) and is released back into the atmosphere as a waste product when animals breathe and exhale
Answer:
In animals, oxygen combines with food in the cells to produce energy for daily activity and then gives off carbon. The carbon combines with oxygen to form carbon dioxide (CO2) and is released back into the atmosphere as a waste product when animals breathe and exhale.
Explanation:
How do electric charges behave?
Students from a high school science class visited the desert of Southern California and investigated a sample of
sedimentary rock from the region.
Which question can they answer through scientific
investigation?
O Which fossils are found in different layers of sedimentary rock?
Why are sedimentary rocks prettier than other kinds of rocks?
Which layers of a sedimentary rock have the most interesting fossils?
- Why should scientists study sedimentary rocks?
Answer:
Which fossils are found in different layers of sedimentary rock?
Explanation:
Thats the answer i hope it helped! :)
Answer:
Which fossils are found in different layers of sedimentary rock?
Explanation:
Which fossils are found in different layers of sedimentary rock?
6. The absorbed dose of electrons is 50 mrad. What is the equivalent dose in J/kg?
O 5.0 x 10-4 g/kg
500 J/kg
5.0 x 10-3 J/kg
50 J/kg
Answer:
5.0 x 10-4 g/kg
Explanation:
This is because
I mrad is equivalent to 1/100,000j/kg
Therefore,
To convert 50 mrad to j/kg
= 50/100,000
= 5 × 10^-4j/kg.
Millirad is a decimal unit or rad which is the unit for measuring absorbed ionization radiation.
The human immune system detects the presence of pathogens using pattern recognition receptor molecules that bind to common components of pathogens, such as peptidoglycan polymers in cell walls and the flagellin protein of bacterial flagella, known as pathogen-associated molecular patterns, or PAMPs. These receptors are effective becauseGroup of answer choicesthey detect only human immune molecules.they result in rapid evolution of the host immune system.they recognize evolutionarily conserved molecules that are structurally essential to the various bacteria that use them.PAMPs evolve more quickly than other pathogen molecules.
They recognize evolutionarily conserved molecules that are structurally essential to the various bacteria that use them.
What are Pattern recognition receptor molecules?Pattern recognition receptor molecules detect pathogen-associated molecular patterns (PAMPs), which are structurally conserved components of pathogens such as bacteria, viruses, and fungi. These molecules are essential for the survival and function of the pathogen, and are not found in the host's cells.
By recognizing PAMPs, the immune system can quickly identify and respond to a wide range of potential pathogens, without needing to recognize every individual pathogen separately. Therefore, the receptors are effective because they recognize evolutionarily conserved molecules that are structurally essential to the various bacteria that use them.
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Which type symmetry applies to animals in the phylum Porifera?
A no symmetry
B bilateral symmetry
C radial symmetry
Answer:
A no symmetry
Explanation:
Answer:
c.) radial symmetry
Explanation:
The Go' for the reaction Citrate Isocitrate is +6.64 kJmol-1 . The Go' for the reaction Isocitrate α-Ketoglutarate is -267 kJmol-1 . Calculate the Go' for the conversion of citrate to α-ketoglutarate?
Answer:
ΔG°' for the conversion of citrate to α-ketoglutarate = - 273.64 kJmol-1
Explanation:
ΔG°' for Citrate is +6.64 kJmol-1
ΔG°' for Isocitrate is -267 kJmol-1
ΔG°' for the conversion of citrate to α-ketoglutarate = ΔG°' for product - ΔG°' for reactant
ΔG°' for the conversion of citrate to α-ketoglutarate = -267 kJmol-1 - (+6.64 kJmol-1)
ΔG°' for the conversion of citrate to α-ketoglutarate = - 273.64 kJmol-1
What are the steps a botanist likely might follow in the discovery of a new plant species? Describe at least two
steps.
Answer:
Reminder to be happy, go drink some water, eat some food and relax! You are loved :) <3
Explanation:
The north pole of a compass magnet points toward
O A. magnetic north
B. geographic south
C. geographic north
D. magnetic south
SUBMIT
D. Magnetic south
Hope this helps :)
4. On the basis of what criteria did Linnaeus classify “natural bodies"
into his system?
Answer:
Metamorphism is the answer
