Two students are investigating the relationship between net force and acceleration on an object. They tie a string to a 1-kg block resting on a horizontal table. The string is run over a pulley and attached to a 100-gram weight hanging above the floor. The acceleration of the block is then calculated as the block falls to the floor.
Which statement would best describe the greatest source of error in this investigation and suggest a reasonable method to reduce this error?
A) The block would have friction and a dynamic cart could be used.
B) The block on the table has too much mass and should be increased
C) The falling mass is too small to accelerate the block and should be increased.
D) A pulley has friction and the hanging mass should be replace with a spring scale.r
Answers
The correct answer is actually A) The block would have friction and a dynamic cart could be used.
I have a screenshot attached.
Hope that helps!
Good luck! :)
Related Questions
In order to contain groundwater, a layer of subsoil must have porosity. That is, it must have empty spaces, or pores. In order to allow groundwater to easily pass through the subsoil, A. the subsoil's pores must be large. B. the subsoil's pores must be connected to each other. C. the subsoil's pores must be small. D. the subsoil's pores must be isolated from each other.
Answers
the answer is B the pores must be connected to each other
Answer:
the answer is B the pores must be connected to each other
Explanation:
POV: Brainly asks why and I respond how my mom would...
BECAUSE I SAID SO
The acacia tree provides a habitat and protection for ants. This is considered its _____.
biome
ecological niche
ecosystem
biotic factor
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Answer: ecological niche
Explanation:
An ecological niche can be define as the functional role that an organism plays in an ecosystem during the coarse of it's life. Like, the type of food chosen for eating, type of habitat chosen, season for breeding, predator- prey relationship, harm and benefit it provides to other species and others.
The acacia tree provides a habitat and protection to the ants these are the functional roles the acacia tree plays in an ecosystem. Therefore, this defines the ecological niche of the acacia tree in an ecosystem.
Inside the epiphyses of each long bone, mostly ________________ can be found.
a. compact bone
b. spongy bone
c. cartilage
d. yellow marrow
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What is the difference between a species in a population
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What were the common causes and risk factors found between the majority of the skin disorders?
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In mosses, the green, leafy portion represents which generation in the alternation of generations? haploid sporophyte diploid gametophyte haploid gametophyte diploid sporophyte haploid spore
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Answer:
The answer is haploid gametophyte.
Explanation:
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He atmospheric cooling that occurs where and when aerosol pollution is the greatest is an example of: negative feedback
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The atmospheric cooling that occur where and when aerosol pollution is the greatest is called aerosol effect. Aerosol effect is an example of negative feed back mechanism. A mechanism is described as negative if it reduces variation in either direction. Examples of aerosol are salt crystals and pollen from windblown seawater and soot and sulfates from coal burning. Aerosols can have strong effects on both heating and cooling of the atmosphere. For instance, accumulation of soot in the atmosphere can cause heating. Some aerosols block out the heat of the sun thus causing cooling.
It is important to mention the general term non physician practitioner (npp), which includes non physician clinicians (npcs) and midlevel practitioners (mlps) and also referred to as physician expanders.
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These are referred as Physician expanders because these are considered as SUBSTITUTE for physicians. These physicians are not involved in care of patients but work in close association with the physicians.
A physician refers to a professional who is involved in medicine and promotes and restores health of the patient.
A client comes to the mental health clinic with the complaint of a progressing inability to be in enclosed spaces. the practitioner makes the diagnosis of claustrophobia and prescribes desensitization therapy. the nurse recalls that desensitization therapy is used successfully with clients experiencing phobias because it is focused on:
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True or false: the rate of an illness in a population is the natality rate.
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The sensory registers ______.
a. are measures of retention
b. retain past information
c. control our attention span x
d. receive sensory information from the external world
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The sensory registers takes information from all the five sense organs and hold the information only for a few seconds, maximum of twenty seconds. Sensory register is the most intermediate form of memory which one have and it is the shortest form of memory.
Part d - how can you determine if the glucose-aversion trait becomes more common in a cockroach population as a result of adaptive evolution?
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Final answer:
To determine if the glucose-aversion trait becomes more common in a cockroach population as a result of adaptive evolution, you can conduct a study comparing populations that have been exposed to glucose-rich environments with populations that have not.
Explanation:
To determine if the glucose-aversion trait becomes more common in a cockroach population as a result of adaptive evolution, you can conduct a study comparing populations that have been exposed to glucose-rich environments with populations that have not. Here are the steps you can follow:
Collect a sample of cockroaches from different populations.
Separate the cockroaches into two groups, one exposed to a glucose-rich environment and one not exposed to glucose.
Observe the populations over several generations.
Measure the frequency of the glucose-aversion trait in each population.
If the glucose-aversion trait becomes more common in the population exposed to glucose, it suggests that it has been favored by natural selection and has undergone adaptive evolution.
By comparing the populations under different conditions, you can determine if the glucose-aversion trait is becoming more common due to adaptive evolution.
What molecule is responsible for carrying the acetyl group from pyruvate into the citric acid cycle?
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Final answer:
Acetyl CoA is the molecule responsible for carrying the acetyl group from pyruvate into the citric acid cycle in cellular respiration. It combines with oxaloacetate to form citrate in the cycle.
Explanation:
The molecule responsible for carrying the acetyl group from pyruvate into the citric acid cycle is acetyl CoA.
During the conversion of pyruvate into the acetyl group, a molecule of carbon dioxide and two high-energy electrons are removed. The carbon dioxide accounts for two of the six carbons of the original glucose molecule, and the electrons are picked up by NAD* to form NADH.
Acetyl CoA then enters the citric acid cycle by combining with a four-carbon molecule, oxaloacetate, to form the six-carbon molecule citrate.
whats kinds of food are proteins found in?
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The term ____________ describes cellular respiration in the absence of ____________ . oxygen is the final electron acceptor in ____________ respiration. the breakdown of organic molecules without oxygen is called ____________ . during fermentation, yeast break down pyruvate into ____________ and acetaldehyde. aerobic respiration produces ____________ molecules whereas anaerobic respiration produces ____________ molecules.
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Second one: aerobic
Third one: fermentation.
Fourth one: CO₂
Fifth: 34-38 ATP, 2 ATP
The term anaerobic describes cellular respiration in the absence of oxygen. Oxygen is the final electron acceptor in aerobic respiration.
What is respiration?Respiration is the process of releasing energy from food through oxidation. Aerobic along with anaerobic respiration are the two kinds of respiration.
Aerobic means "with air," and it refers to the body's use of oxygen to produce energy. This usually refers to any exercise that lasts more than two minutes.
Aerobic 'steady state' exercise is performed continuously. Anaerobic refers to the body producing energy without the use of oxygen.
The term anaerobic refers to cellular respiration that occurs in the absence of oxygen. In aerobic respiration, oxygen is the final electron acceptor.
Fermentation is the breakdown of organic molecules in the absence of oxygen. Yeast converts pyruvate to carbon dioxide and acetaldehyde during fermentation.
Aerobic respiration generates 34-38 ATP molecules, whereas anaerobic respiration generates only two.
Thus, these are the complete sentences for the given scenario.
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What is the average age of menarche (first menstruation)?
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The average age of the first menstruation in America is around 12 but everyones ages can vary
An alteration to chromosome structure which only involves one chromosome.
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Alterations in chromosomes structures usually leads to mutation. Monosomy refers to the condition of heaving a diploid chromosome complement in which one chromosome lacks its homologous partner.
Why are nutrient molecules important?
A The body eats the molecules.
B The body breaks down the molecules into the molecules it needs.
C The body combines the nutrient molecules and elements.
D The nutrient molecules are not important.
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Took the test the correct answer is B :)
An ecosystem that has a high level of _______ is able to fill all of its niches.
A. salt water
B. pollution
C. biodiversity
D. carbon dioxide
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Answer:
its definitely C. biodiversity
Explanation:
I got it right on Study Island
Which of these substances is an enzyme: oxidase triglyceride nucleotide omega-3 fatty acid glucose?
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due to the -ase
What are the 3 processes that take place in the kidney leading to the formation of urine?
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PLEASE ANSWER WILL MARK BRAINLIEST AND 5 STAR AND THANK!!
Land used for agriculture adds fertilizer byproducts to water runoff. These byproducts include sulfates, phosphates, and nitrogen. As agriculture expands south of Lake Okeechobee, Florida, predict the impact on the biodiversity in the Everglades National Park, which is marsh and swamplands.
These compounds will combine into larger molecules as they interact in the nitrogen cycle and become food for fish and other animals, increasing biodiversity.
The water cycle will remove excess fertilizer naturally through evaporation, with no impact on biodiversity.
Nitrogenous compounds will be recycled into carbon compounds to create new organisms and increase biodiversity.
Higher amounts of nitrogenous compounds will increase algal blooms, leading to less available oxygen in the water, and decrease biodiversity.
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Answer:
its D
Explanation:
if you dont want to read all that^
The weakest sound normal human ear can hear in dynes per square cm?
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What is the definition of "female"? select one:
a. producing the smaller, more motile gamete
b. producing the smaller, less motile gamete
c. producing the larger, more motile gamete
d. producing the larger, less motile gamete
e. producing more gametes?
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Based on depth and distance from the shoreline,how many zones are found in ponds and lakes?
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During gas exchange, where does the co2, which is released from the lungs, originate?
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The answer is it is a waste product produced by cellular respiration. During Gas exchange in the lungs, oxygen replaces carbon dioxide, and oxygen, oxygenates blood that spreads throughout the body, the Carbon Dioxide, which is expelled from the lungs originated from the cellular respiration, which occurred inside the body.
The fact that both green and yellow peas were produced by tall pea plants in predictable frequencies led mendel to propose the
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As a general rule, what do larger animals require?
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Let me show you an example,
Let us now compare an ant and a human
Ant: Tiny in size and is very light
Human- Bigger in size and heavier.
In order to survive, we humans eat a lot to receive more nutrients. Thus, larger animals requires more food and nutrients
Hope this helps :))
What molecules can be used for long-term energy storage?
a.) ADP and fat
b.) Starch and fat
c.) ADP and ATP
d.) Starch and ATP
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The molecules that can be used for long-term energy storage are - b.) Starch and fat
Fats are the primary long-term energy storage molecules of the body.Fats are stored for a long period of time and also provide a high amount of energy.The other molecule is starch which is a polysaccharide made of large numbers of glucose molecules joined together.Starch is the long-term energy storage compound in plants.It is hard to break down fat in a short amount of time, but it is very easy to break down ATP in a short amount of time.ATP is short-term, while fat is long-term.
Thus, the molecules that can be used for long-term energy storage are - b.) Starch and fat
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Answer:
Starch and fat can be used for long-term energy storage.
Starch is a complex carbohydrate that can be stored in plants as an energy source. The glucose molecules in starch can be broken down through cellular respiration to produce ATP, which can be used as a source of energy by the plant.
Fats can also be used for long-term energy storage. They are stored in adipose tissue and can be broken down through cellular respiration to produce ATP, which can be used as a source of energy by the body.
The way a chef prepares a food dish affects
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The way a chef prepares a food dish affects All of the above. Option D
A chef's technique has a big influence on a lot of different parts of the overall eating experience. First off, the consumer's overall palate feeling is defined by the taste and flavor profile, which is influenced by cooking methods, spice selections, and component combinations. Second, elements like product choice and cooking techniques have an impact on the nutritional content.
For example, steaming or boiling could retain more nutrients than deep-frying. Last but not least, how a food is presented and visually appealing affects how people perceive its quality, freshness, and aesthetic appeal throughout the entire dining experience. The combination of these factors shapes the chef's influence on a dish.
The way a chef prepares a food dish affects
A. The taste and flavor of the dish.
B. The nutritional content of the dish.
C. The presentation and visual appeal of the dish.
D. All of the above.