How many degrees celsius does a 1.5 gram block of ice increase when 30.0 J of heat energy is added?
(Cp = 2.11 J/g°C)
Answers
Degrees celsius does a 1.5-gram block of ice increase when 30.0 J of heat energy is added is 9.48 °C.
Heat may be described as strength in transit from a high-temperature object to a decreased-temperature object. An item no longer possesses warmness, the perfect term for the microscopic electricity in an object is internal energy.
Heat is the shape of energy. It comes from the movement of atoms and molecules, which can be the smallest particles that make up all matter. The quicker those debris circulate, the hotter they are. The temperature of an object tells us how speedy its atoms or molecules are transferring. Warm is a form of electricity that is transferred from a substance having a better temperature to a substance having a decreased temperature. The addition of warmth to a substance increases its internal temperature. warmness is described because of the net amount of thermal energy of a gadget.
The heat energy required = msΔt
30 J = 1.5 gram 2.11 Δt
Δt = 30/(1.5×2.11)
= 30/3.165
= 9.48 °C
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Related Questions
A coordination of events is characteristic of the reproductive cycle of a human female and the replicative cycle of an enveloped RNA virus (see Figure 19.7). What is the nature of the coordination in each of these cycles?
Answers
In the reproductive cycle of a human female, the coordination is hormonal, while in the replicative cycle of an enveloped RNA virus, the coordination is genetic and biochemical.
Hormones and feedback control female reproductive cycle synchronisation. GnRH from the hypothalamus induces the pituitary gland to release FSH and LH. FSH and LH then stimulate ovulation, follicular development, and progesterone and oestrogen release. These hormones thicken the uterine lining to prepare for fertilisation and implantation. If fertilisation fails, hormone levels decline, causing menstruation and uterine discharge.
The coordination of enveloped RNA virus replication and release includes several phases. Attachment and entry into host cells, uncoating of the viral genome, creation of viral proteins and replication of viral RNA, assembly of new viral particles, and release from the host cell. To complete the viral replication cycle and produce infectious progeny viruses, viral proteins, host cell components, and molecular interactions carefully coordinate each step.
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What is nuclear fission?
O A. The joining of nuclei
B. The gain of nuclear mass
O C. The splitting of a nucleus
O D. The formation of an ion
Answers
Explanation:
C is the correct answer i.e. splitting of a nucleus
The splitting of a nucleus is known as the nuclear fission. So option C is correct.
Nuclear fission is the process of splitting an atom’s nucleus into lighter nuclei. This can occur naturally through radioactive decay, or it can be simulated in a laboratory by achieving the necessary conditions (e.g. neutrinos being bombarded). The resulting fragments usually have a mass that is less than that of the original nucleus.
We use the fission reaction in nuclear reactors to create electricity. The heat generated by the fission reaction is converted into a working fluid that passes through a steam turbine. The working fluid then drives a ship's propellers or turns the shafts of electrical generators.
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The images show the stages of human development. At which stage does cell differentiation start?
Answers
Answer:
the second picture is your answer
Answer:
the second picture to your right
Explanation:
which of the following statements concerning gpcr (7tm) is true? a) heterotrimeric g-protein binding occurs only at the c-terminal tail of the receptor. b) upon hormone binding, there is activation of an intrinsic tyrosine kinase that is associated with the n-terminus of the receptor. c) their activation is terminated by alpha-subunit catalyzed hydrolysis of gtp to gdp. d) their activation involves phosphorylation of gdp to form gtp on the g-protein alpha subunit. e) upon hormone binding, the membrane-spanning subunits of a gpcr form an ion channel.
Answers
Using the theories of GPCR, we got that the statement concerning GPCR(7tm)is true-
b) upon hormone binding, there is activation of an intrinsic tyrosine kinase that is associated with the n-terminus of the receptor.
In terms of the structure, GPCRs are characterized by an extracellular N-terminus, followed by the seven transmembrane (7-TM) α-helices (TM-1 to TM-7) connected by the three intracellular (IL-1 to IL-3) and the three extracellular loops (EL-1 to EL-3), and finally the intracellular C-terminus.
GPCRs have more than one receptors for the following ligands: sensory signal mediators (e.g., light stimulatory molecules);
Hence, the statements concerning GPCR(7tm) is true is --- b)upon hormone binding, there is activation of an intrinsic tyrosine kinase that is associated with the n-terminus of the receptor.
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what is a scientific hypothesis? what characteristics must a hypothesis have to be useful in science?
Answers
Answer:
A scientific hypothesis must meet two criteria:
Explanation:
A scientific hypothesis must be testable. A scientific hypothesis must be falsifiable. hope this helps you :) god loves you :)
A scientific hypothesis proposes an explanation for an event that happens. We can observe it but not explain it, so we suggest a possible explanation. The characteristics that a hypothesis has to have are:
TestabilityFalsability
A scientific hypothesis suggests an explanation for something that we observe in nature but can not explain. We formulate them using the format if/then. In the first part, we propose the possibility with if. In the second part, we propose the outcome with then. For example, If humans don't eat meat, then they lack Ferrum.
The two characteristics that a scientific hypothesis must have are:
Testability:Scientists have to be able to do experiments to get information and prove the hypothesis to be correct or not.
Falsability:It means that the hypothesis, after experiments and observations, can be refuted.
In conclusion, a scientific hypothesis suggests a solution or explanation. It must have the characteristics of testability and falsifiability to be useful in science.
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Unattached earlobes is a dominant trait, E. A parent who is homozygous for unattached earlobes is crossed with a parent who is homozygous for attached earlobes. Which describes the genotypes of their offspring?
Answers
Answer:
Homozygous Dom and Homozygous recessive traits are both shown.
Look below for answer V
Explanation:
Considering that both are homozygous, that means that both traits are of the same kind.
Unattched earlobes is dominant, which means its sign would be (EE)
Attatched is the recessive, which means its sign would be (ee)
On a table, the genes would look this way-
EE EE
ee Ee Ee
ee Ee Ee
Since there is a dominant trait in all of the genes, the children would 100% have unattached earlobes.
(As a counter situation, if the unattatched was heterozygous, the chance of attatched to unattatched would be 50/50 as theres no dominant trait lurking)
I may be incorrect but i hope this helps!
The actual alleles that an organism possesses make up its genotype. The appearance or characteristic of an organism is known as its phenotype. A person would have detached earlobes if their genotype was Ee.
What are the Unattached earlobes genotype?The person who has free earlobes and is heterozygous has the genotype Ee and is capable of producing both the E and e alleles.
Punnett's squares are a good illustration of this. The person who has linked earlobes has the genotype ee and is only capable of producing e alleles.
All the genes have a dominant characteristic, therefore all the offspring would have detached earlobes.
Since there is no hidden dominant characteristic, (as a counter example, if the unattached was heterozygous, the risk of attached to unattached would be 50/50)
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Write instructions for a specific task that you would like to teach someone.
Answers
According to what you wish to educate them. You must keep in mind who you are speaking of. When trying to teach somebody about whatever it is you are trying to teach them, walk with easy so as not to harm their feelings. The said person may not be able to grasp readily or may not be able to do what you want to teach them. Never lose your temper and insult this individual or claim you are incapable of learning. Everyone has the capacity to learn, even if they suffer from a condition that makes them go more slowly than others.
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Eddie
Venous drainage of the head and neck is through the veins, which then drain into the brachiocephalic veins.
Answers
According to the research, the statement is true. Venous drainage of the head and neck is through the internal jugular vein, which then drain into the brachiocephalic veins.
What is the internal jugular vein?It is a very wide and thick duct that it is responsible for collecting the non-oxygenated blood that comes from the head, from the anterior area of the neck.
Being the largest caliber and the other jugular veins flow into it; it is a continuation of the sigmoid sinus and together with the subclavian vein made up of the brachiocephalic veins that drain blood from the head, neck, and upper extremities.
Therefore, we can conclude that according to the research, the statement is true. Venous drainage of the head and neck is through the internal jugular vein, which then drain into the brachiocephalic veins.
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Which technique would you use to determine the following? You can use each technique only once. Not all techniques will be used. There may be multiple correct answers for a question. Only include one correct answer for each. If you write multiple options, I will only grade the first answer. Explain your answer - how would that speclfic technique show you what you are trying to determine. a. You want to determine how many times a single protein crosses the mitochondrial membrane. b. You want to determine which cell type expresses the Na+/K+ pump. c. You want to determine which membrane sample contains cholesterol. d. You want to determine if a cell is expressing a peripheral protein on the cytoplasmic or extracellular side of the plasma membrane. e. You want to determine the rate of protein movement in the cytoplasm under different conditions.
Answers
a. To determine how many times a single protein crosses the mitochondrial membrane, we can use the "freeze-fracture" technique.
Freeze-fracture is a technique that is used to examine the internal structure of cells. By freezing a sample and fracturing it, one can obtain a replica of the cell's surface and its internal structure. Since proteins that are embedded in a membrane are exposed during this technique, they can be counted to determine how many times a single protein crosses the mitochondrial membrane.
b. To determine which cell type expresses the Na+/K+ pump, we can use immunocytochemistry. This technique utilizes an antibody that specifically binds to the protein of interest. By adding the antibody to the cell sample, the location and type of cells that contain the Na+/K+ pump can be visualized.
c. To determine which membrane sample contains cholesterol, we can use a technique called thin-layer chromatography. This technique uses a stationary phase (a thin layer of silica or alumina) and a mobile phase (a solvent) to separate compounds. Since cholesterol has a distinct polarity, it will travel through the stationary phase differently than other compounds.
d. To determine if a cell is expressing a peripheral protein on the cytoplasmic or extracellular side of the plasma membrane, we can use the protease protection assay. In this technique, cells are exposed to a protease that can only cleave proteins that are not protected by the membrane. By comparing the amount of protease cleavage on the cytoplasmic and extracellular sides, one can determine the location of the protein.
e. To determine the rate of protein movement in the cytoplasm under different conditions, we can use fluorescence recovery after photobleaching (FRAP). This technique utilizes a fluorescently labeled protein and a laser to photobleach a small area of the cell. By observing the recovery of fluorescence over time, one can determine the rate of protein movement.
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I
4. How does carbon move through Earth's spheres in the fast carbon cycle? Be sure
to include carbon sinks and
explanation. (2 points)
sources and the movements between them in your
Answers
The basic foundation of Earth's life is iron. The Earth's temperature is set by carbon molecules, which also mix the food we eat as well as the energy that drives our globalization.
What uses does carbon serve?Coke created of coal and ashes made from wood are products of the impure materials used in metal smelting. Particularly for said steel and iron industry sectors, it is essential. Electrical bristles, furnace linings, and pencils all make use of graphite. Devices for filtration and purification use activated charcoal.
How dangerous is carbon?An odorless gas called carbon monoxide kills thousands of people in North America every year. Inhaling carbon monoxide is extremely risky. In the US, it is the main cause of poisoning fatalities.
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What affect does alcohol concentration have on cell membrane permeability?
Answers
Answer:
At high concentrations, alcohols reduce bilayer stability (12, 21) and break down the lipid bilayer barrier properties, causing increased ion permeability (14, 15).
Explanation:
As the ethanol concentration increases, membrane permeability will increase. If the ethanol concentration is high enough, enough phospholipids will dissolve to cause the plasma membrane to disintegrate completely which will kill the cell.
Explanation:
At high concentrations, alcohols reduce bilayer stability (12, 21) and break down the lipid bilayer barrier properties, causing increased ion permeability.
What makes carbon atoms ideally suited to their role in living things?
A.Their ability to form long chains of atoms
B.Their ability to form covalent bonds
C.Their ability to form liquid substances
D.Their ability to form compounds and with other elements
Answers
A. their ability to form long chains of atoms
thats the answer i got
Use examples to explain how the biosphere interacts with two other of Earth's spheres. Explain the interaction for each using complete sentences.
Answers
Answer:
The biosphere is influenced by other spheres and also influences other spheres.
The biosphere comes into contact with several other spheres such as the hydrosphere, the lithosphere, and the atmosphere.
Contact with the atmosphere is a two way street since the biosphere can alter the composition of the atmosphere. However, many members of the biosphere like mammals and birds depend on the mix of gases in the atmosphere to survive, and weather is an important agent of change.
The lithosphere is another sphere that can impact the biosphere through geologic activity both underground and on the surface. The impact of the biosphere on the lithosphere can be observed through the altering and transformation of terrains and through biochemical weathering of rocks.
Explanation:
Which choice depicts a human nerve cell?
A[Weird cell] incorrect answer
B[Plant cell] incorrect answer
C[Red blood cell] incorrect answer
D[Nerve cell]
Answers
Answer:
D then...
Explanation:
Answer:
D
Explanation:
HELP PLEASEE WILL GIVE BRAINLIEST!!!
Determine if each item is a conductor or an insulator. *
8 points
insulator
conductor
layers of clothing
plastic
O
a silver spoon
fur on your pet
a metal fence
copper wire
oven mitts
gold jewelry
Answers
Answer:
I need 5 brainliest to level up
Explanation:
Conductor- Silver spoon, metal fence, copper wire, gold jewelry
Insulator- Layers of clothing, plastic, fur on your pet
Inside of the cell, energy conversions must take place in order to remove energy from raw materials and turn it into a more useable from. What organelle performs these energy
conversions in all eukaryotic cells?
Answers
Answer:
mitochondria is responsible for this conversions
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What type of symbiosis occurs when one organism benefits and the other is harmed?
Answers
Answer:
Parasitism
Explanation:
In this a parasite takes its food or other needs from the host but later harms the host too.Some examples like leeches who takes blood from our body but harms us tooParasitism is an ecological relationship between two organisms in which one organism benefits while the other organism suffers. It may also be a type of symbiosis.
The majority of microorganisms investigated in medical microbiology are parasitic and prey on human tissue. Parasitic microbes, for instanse, cause cholera, leishmaniasis, and giardia. Any relationship between two or more biological species is referred to as symbiosis. Such relationships are typically long-term and have a significant impact on one or both organisms' fitness. Benefits and physical characteristics distinguish symbiotic relationships. Mutualism, defined as a relationship in which both species benefit, is very common in nature. There are numerous examples of mutualistic bacteria in the abdomen that aid digestion in both humans and animals in microbiology. A commensal relationship is one in which one species benefits while the other is unaffected. Humans have a variety of commensal bacteria in their bodies that do not harm them but are necessary for survival, like when dead skin is consumed by bacteria.
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Which of the following represents the initial stage of learning in the process of conditioning? A. Acquisition B. Generalization C. Discrimination D. Stimulus contiguity Please select the best answer from the choices provided A B C D.
Answers
Answer:
A
Explanation:
Aquistion
If a dog with the genotype BbCc mates with a dog with the genotype Bbcc and have a litter of 16 puppies, how many will have white fur and blue eyes?
A. 4
B. 2
C. 8
D. 1
Answers
The correct option is B 2 puppies in the litter of 16 will have white fur and blue eyes.
To determine the number of puppies with white fur and blue eyes, we need to analyze the genotypes BbCc and Bbcc for the two dogs.
White fur is determined by the dominant B allele, while blue eyes are determined by the recessive c allele. In this case, we need to find the probability of puppies inheriting the bbcc genotype.
Determine the possible gametes for each dog:
- Dog 1: BC, Bc, bC, bc
- Dog 2: Bc, bc
Perform a Punnett square to determine offspring genotypes:
- BC x Bc: BBCc (not white fur, not blue eyes)
- BC x bc: BBcc (not white fur, blue eyes)
- Bc x Bc: BbCc (not white fur, not blue eyes)
- Bc x bc: Bbcc (not white fur, blue eyes)
- bC x Bc: BbCc (not white fur, not blue eyes)
- bC x bc: Bbcc (not white fur, blue eyes)
- bc x Bc: bbCc (white fur, not blue eyes)
- bc x bc: bbcc (white fur, blue eyes)
Calculate the probability of bbcc offspring: 1/8
Multiply the probability by the litter size (16 puppies): (1/8) * 16 = 2 puppies
So, 2 puppies in the litter of 16 will have white fur and blue eyes.
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How does CO2 level affect oxygen production?
Answers
Answer:
Grupa chemików z Uniwersytetu Środkowej Florydy pod kierownictwem profesora Fernando Uribe-Romo, odkryła sposób zamiany dwutlenku węgla w paliwo i tlen — naśladując naturalne procesy w jakich rośliny konsumują CO2, czyli fotosyntezę, która z dwutlenku węgla i wody produkuje węglowodany czyli paliwo dla organizmów żywych.
Explanation:
Answer:
Greater flow of oxygen corresponds to a higher rate of photosynthesis. but more co2 would make the oxygen lower because plants are producing co2.
Explanation:
Which DNA fingerprinting technique examines the length variation of DNA repeat sequences in human DNA?
Answers
The DNA fingerprinting technique that examines the length variation of DNA repeat sequences in human DNA is called Variable Number Tandem Repeat (VNTR) analysis.
VNTRs are DNA regions that comprise short, repeating nucleotide sequences. Because the number of repeats at a specific VNTR locus can differ between people, it is a useful tool for DNA profiling.
VNTR research entails amplifying VNTR regions with PCR and then sorting the amplified fragments by size with gel electrophoresis.
Unique DNA profiles can be produced by comparing the size and number of amplified fragments between different people, which can then be used for identification and other purposes.
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The Protected Areas Commission in Guyana is planning to implement a comprehensive programme aimed at protecting our local biodiversity. 1. What components of diversity should they focus on? 2. Why should the Commission focus on the components you have identified above? 3. Name the TWO ways in which this biodiversity could be conserved 4. Explain how you would go about using the TWO ways to conserve biodiversity
Answers
1. The Protected Areas Commission in Guyana should focus on the components of biodiversity, namely species diversity and ecosystem diversity, for effective conservation.
2.By prioritizing these components, they can ensure the preservation of species and habitats, leading to various ecological, economic, and cultural benefits.
3.Conservation of biodiversity can be achieved through two main approaches: protected area establishment and sustainable management practices.
4.These methods involve creating designated areas with legal protection and implementing sustainable practices that minimize human impact on the environment while promoting biodiversity conservation.
The Commission should prioritize species diversity and ecosystem diversity when planning their biodiversity conservation program. Species diversity encompasses the variety of species present within a given area, and its conservation is crucial for maintaining ecosystem balance, genetic diversity, and ecological resilience.
Ecosystem diversity, on the other hand, focuses on the variety of habitats and ecosystems present, as each contributes unique ecological functions and supports different species.
Focusing on these components is important because they provide a comprehensive approach to biodiversity conservation. By safeguarding species and their habitats, the Commission can protect key ecological interactions, ensure the survival of endangered species, maintain ecosystem services, and support sustainable development.
To conserve biodiversity, the Commission can employ two main approaches. Firstly, they can establish protected areas, which are designated zones with legal protection to prevent human activities that could harm biodiversity. These areas can range from national parks and wildlife sanctuaries to marine reserves and community-managed conservation areas.
Secondly, sustainable management practices should be implemented within and outside protected areas. This involves promoting sustainable land and resource use, reducing habitat degradation, practicing responsible tourism, and engaging local communities in conservation efforts.
By integrating these approaches, the Commission can effectively conserve biodiversity while promoting sustainable development and benefiting local communities.
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Place the genes in the correct order in the chromosome.
Answers
Answer:
According to the order from smallest to largest, the order will be: Nucleotide, Gene, DNA, Chromatin, Chromatid, Chromosome.
help pls Its due in 16 hours
Answers
Answer:
what is the question? please let me know
What is the primarily determines the speed of muscle fiber contraction?
a. amount of actin and myosin
b. amount of actin atpase
c. diameter of the muscle fiber
d. speed of myosin atpase
Answers
The speed of muscle fiber contraction is primarily determine by the speed of myosin ATPase; option D.
What determines the speed of muscle fiber contraction?Muscle fiber contraction occurs when a single muscle fiber or group of fibers on receiving a signal from the the brain through the nerves begins to contract and increase the tension within the muscle.
The components of a muscle fiber contraction include:
actin filamentsmyosinmyosin ATPase - an enzyme that determines the speed of contractionIn conclusion, effective muscle fiber contraction involves the coordinated activity of all the muscle contraction components.
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if mules were no longer sterile but could produce offspring, then there are no other reproductive barriers to overcome.truefalse
Answers
The statement; "if mules were no longer sterile but could produce offspring, then there are no other reproductive barriers to overcome" is true.
What is sterility?Sterility is the state of being free from living microorganisms or germs that can cause infection or disease. It refers to the absence of viable microorganisms in a given environment, such as a surgical instrument, a medication, or a medical implant.
Sterility is a critical factor in many medical and industrial processes, as the presence of microorganisms can compromise the safety and efficacy of a product or procedure. Sterilization techniques, such as heat, radiation, or chemicals, are commonly used to achieve sterility in various settings.
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Help with this question
Answers
Answer:
You should mention a question if you want someone to answer it.
Which is one of the most dramatic triggers of sudden mass movements?
Answers
Answer:
An Earthquake is one of the most dramatic triggers of sudden mass movements.
Write four characteristics of humans which are totally unaffected by the environment.
Answers
What would the answer be? I need it asap!!!
Answers
Answer:
Galactose
Explanation:
The enzyme 2 that acts on galactose will be unavailable hence Galactose will increase