A 16 N net force acts on a 4 kg rock. What is the acceleration of the rock? *
A )8 m/s2
B )12 m/s2
C )4 m/s2
D )64 m/s2
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Answer:C
Explanation:
Related Questions
carbon and oxygen atoms can combine to form the gas called carbon dioxide.
Answers
Answer:is true
Explanation:
Carbon dioxide is made up of one carbon atom and two oxygen atoms.
A population of prairie dogs lives at the edge of a meadow.
Which TWO characteristics make this group of prairie dogs a population?
A. They have the same parents.
B. They belong to the same species.
C. They live in the same area.
D. They have the exact same genes.
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Answer:
B. They belong to the same species and C. They live in the same area.
Explanation:
This is an educated guess. If you think about it, if there was a population of humansss, we dont have the same parents nor the exact genes so to only two that make sense is those to （＾ω＾）
Answer:
B. and C.
Explanation:
Design a device that will knock a block of wood a distance of 5 meters.
This was the challenge in science class. Ben and Sam designed a pendulum to move the wood block. Their first design moved the block about 1.5 meters. They rebuilt their pendulum and changed the mass of the pendulum bob. After the changes, the boys knocked the block of wood 4 meters, 6 meters, and finally 8 meters. The average distance the block moved after the final changes to the pendulum was 6 meters. The boys won the design challenge.
Changing the pendulum design after the first trial was an example of _____________ to solve the problem presented by the teacher.
A) designing the model
B) evaluating the model
C) identifying the problem
D) doing research on the problem
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Changing the pendulum design after the first trial was an example of evaluating the model to solve the problem presented by the teacher. So, the correct option is B.
What is Pendulum?A weight suspended from a fixed position in such a way that it can swing back and forth when pulled by gravity is called a pendulum. The consistent and predictable swinging motion of a pendulum makes it useful for many tasks, such as timekeeping, physics investigation, and engineering design.
In the example above, Ben and Sam analyzed their initial pendulum design after the first try and found that it could only move a wooden block about 1.5 meters. He decided that he needed to modify his design. After making adjustments to the mass of the bob, he rebuilt his pendulum. They were able to knock the wooden block over a distance of 4 m, 6 m and finally 8 m after making these adjustments with an average distance of 6 m.
Consequently, changing the pendulum design after initial testing was an example of evaluating the model and improving it as a result of the evaluation findings.
So, the correct option is B.
Learn more about Pendulum, here:
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Which arrow or arrows represent a release of carbon dioxide? What process is occurring at the arrow(s) you selected?
Answers
Arrow 'f' releases carbon dioxide.
Answer:
F I think I am not sure though hope I helped.
A scientist genetically engineered a grain cereal. The genetically engineered variety can produce its own vitamins and is drought resistant. What is the likely impact of growing such a cereal crop on the society?
May trigger an adverse climate change
May worsen the water crisis around the world
Would be beneficial for the malnourished population
Would increase the shortage of food around the world
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Ok So I really really need help Its 2 Questions Combined I think...
1. The diagram below shows the results of Mendel's experiment crossing a yellow pea with a green pea. What can be determined from the results of the first generation?
(Picture)
A. The yellow pea is dominant to the green pea. Therefore the first generation of peas is green.
B. The green pea is dominant to yellow. Therefore the first generation of peas is green.
C. Bothe the green pea color and the yellow pea color are recessive.
D. Both the green pea and the yellow pea color are dominant.
2. Using the illustration above, explain why in the second generation of peas there is a yellow pea present even though all peas were green in the first generation.
(Have to write someting)
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Answer: 1) answer b 2)the yellow gene is recessive, so once to recessive genes meet they create a yellow pea. (Provided an example of a square where you have two recessive Pp plants mix) PP would be pure breed green and Pp would be green with a recessive yellow trait. pp would make a yellow plant.
Explanation:
heart rate during swimming for a 13 year old female
heart rate during dancing for a 13 year old female
heart rate during jogging for a 13 year old female
BPM
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What is a smell?
A)electrical signals from the substance you are smelling
B)light from the substance you are smelling
C)molecules of the substance you are smelling
D)smells are not matter, but are energy waves from the substance you are smelling
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The molecules make contact to part of your olfactory epithelium, which contains receptors that lock onto these molecules.
List the muscular organs in the muscular system (nothing to do with other organ systems).
HOMEWORK DUE TOMMOROW!
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Answer:
A whole skeletal muscle classifies as an organ of the muscular system. Each organ or muscle has skeletal muscle tissue, nerve tissue, blood or vascular tissue, and connective tissue.
The different organs in the muscular system include cardiac muscles, smooth muscles, skeletal muscles, connective tissue, nerve tissue and blood tissue Rhythmic contractions cover the heart’s wall. It is responsible for the beating of the heart. The skeletal system allows the body to extend and contract.
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Which best describes why it is important for a scientist to use the metric system when recording data?
so the data can be proven in the scientist’s next experiment
so the data can be shared and understood around the world
so the data can be used in mathematical formulas and models
so the data can be accurate and precise in each experiment
Answers
i dont understand you're Q. please explain and ill commet your answer down below. and ill explain you're Q. thank you
Identical twins share all of their genes, while fraternal twins share only half of their genes. For twins with the disorder schizophrenia, about 50% of indetical twins share the disease, while only about 10-15% of fraternal twins do. What does this tell you about the way genetic and envionmental facotrs affect schizophrenia?
Answers
Answer: The environmental factors likely interact with genetic liability negatively to produce disorders in the schizophrenic spectrum. Genetic and environmental components of the disorder are examined, as well as their interactions in producing either neurodevelopmental syndromes or schizophrenia itself.
Explanation:
The differences between identical and fraternal twins are due to how they are conceived. When identical twins are conceived, the fertilized egg splits into two, causing two separate embryos to grow. When fraternal twins are conceived, two eggs are fertilized at the same time.
Many factors normally contribute to the onset of schizophrenia
The actual causes of schizophrenia are not fully understood.
Brain chemistry: Abnormal functioning of neurotransmitters such as dopamine can cause schizophrenia.
Heredity: Schizophrenia tends to run in families. If a parent has the disorder, the offsprings are susceptible to the disease.
matter 1. What do you think it means for a solid to have a definite shape? (hint: a gas/liquid does not have a definite shape). _________________________________________________________________________________________ 2. How can solids be transformed into other states of matter? Give an example. _______________________________________________________________________________
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Answer:
1.) Particles in a solid have fixed locations in a volume that does not change. • Solids have a definite volume and shape because particles in a solid vibrate around fixed locations.
2.) It's a process called sublimation. The easiest example of sublimation might be dry ice. Dry ice is solid carbon dioxide. When you leave dry ice out in a room, it just turns into a gas.
Mechanical energy can take on many forms, but these different forms can be categorized as either potential energy or energy of motion. The height an object is dropped from has an effect on the amount of energy in the object. Let’s conduct an experiment to see the effect.
:How does the height of an object affect the amount of mechanical energy it contains?
1:Variables What is the test variable?
Answers
The height of an object is crucial to the amount of energy something has because the higher up it is the most potential energy it has and kinetic energy it could have.
For example, if the height of a basketball was just a couple inches off the ground, it would not have a large amount of potential energy because because there is not much of a fall between the ball and the ground. However, if the ball was higher, there would be more potential energy because there is more room to fall.
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"What is the test variable?"
The test variable, or independent variable in this case would be the height, as the scientist is changing the height in order to get different results in the total mechanical energy, which would be the dependent variable.
Ohm’s law is I = V ÷ R. What’s the voltage of the battery described?
A circuit has one 10.0-ohm resistor. The current flowing through the circuit is 0.15 amps. So, the battery in the circuit is a ___-volt battery.
Answers
Answer:
1.5 Volts
Explanation:
amps = volts ÷ ohms
volts = ohms X amps
amperage = voltage/resistance therefore
voltage = resistance X amperage
Volts = 10 ohms X 0.15 amps = 1.5 volts
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Coriolis________is the deflection of winds to the right in the Northern Hemisphere and to the left in the Southern Hemisphere because of Earth's rotation.
Answers
Answer: Effect
Explanation:
It's the Coriolis Effect
HELP ASAP GIVING BRANLIST
1. What tools did you use to collect your data?
(Can u tell me some tool that can be used for a plasma membrane experiment)!!!!
Answers
NEED THIS ASAP ill mark brainliest Explain how the medical community can use computer-modeling tools, like the one shown in the video, to identify health problems in a developing baby.
Answers
Answer:
here u go
Explanation:
The modeling tool shows exactly how different body parts form. Doctors can use models, like the one in the video, along with ultrasound pictures of a developing baby, to determine whether the embryo is growing normally and is forming the proper body structures at the correct time. If not, the doctor could inform the parents of the problem before the baby is born. Doctors could then make a plan to treat the condition, if possible.
Why do you think Vera and Domingo ended up with three substances after the chemical reaction while Lee only ended up with two
Answers
Answer:
:)
Explanation:
They were probably had something in it that added more. Also they dint say how much so one person added it evenly while the other 2 probably added more of one substance than the other.
Which environment is characterized by very low temperatures and low humidity year round?
Desert
Grassland
Swamp
Tundra
Answers
Reasoning: When you think of a tundra, it’s more of like Antarctica. Possibility to be confused with deserts, which have little to no precipitation/low humidity.
The word of “seismic”is also used to describe something enormous or highly significant why do you think that is?
Answers
1 : of, subject to, or caused by an earthquake also : of or relating to an earth vibration caused by something else (such as an explosion or the impact of a meteorite) 2 : of or relating to a vibration on a celestial body (such as the moon) comparable to a seismic event on earth.
Why do regions/places have different types of climates? Try to give an example in your answer
Answers
Answer:
The climate of a region depends on many factors including the amount of sunlight it receives, its height above sea level, the shape of the land, and how close it is to oceans. Since the equator receives more sunlight than the poles, climate varies depending on its distance from the equator.
Answer,because of the bench marks
Explanation:
regions have different type of climates because of various reasons it could be determined by the fove benchmarks equator ,arctic circle,antartic circle,tropic of cancer and capricorn.
I will mark brainliest pls help!!!
Select the statement that best describes the importance of germination and seed dispersal in plant reproduction.
Plants can reproduce when seeds are germinated during seed dispersal.
Both germination and seed dispersal come before plant reproduction.
Germination has no involvement in plant reproduction, but seed dispersal does.
Plants can grow in new places when seeds are dispersed, and germination begins a new life cycle.
Read the following passage and identify the error.
"During germination, the fertilized egg begins to sprout and grow. Each seed contains an embryo, or tiny plant, and it needs the right condition to grow. These conditions include the basic need of water, the correct temperature, and the right location, which is in the soil."
Select the statement that corrects the error in the passage.
Seeds are fertilized during germination, not before.
Basic conditions include wind, not water.
The fertilized egg begins to grow and mature, not an embryo.
The fertilized seed begins to grow and sprout, not an egg.
What is pollination?
When the ovule receives pollen from the stamen and fertilization begins.
When the stigma produces pollen, it is moved from the pistil to the ovule.
The transfer of pollen from the female structure to the male structure of seed plants.
The transfer of pollen from the male structure to the female structure of seed plants.
Answers
Answer:
D and D i think
Explanation:
Answer:
D and D i think
Explanation:
Explain, ur classmate thinks that cell membranes are solid and that nothing ever enters or leaves. Explain why u disagree or agree
Answers
Answer:
The Cell Membrane is semi-permeable
Explanation:
basically it lets things it wants in and keeps the things it doesn't want out.
A student finds a cast fossil of a fish and concludes that the fossil must be made of sedimentary rock. What evidence best supports the student’s conclusion?
A. Only marine fossils form in sedimentary rock.
B. Sedimentary rocks are different colors and fish bones will fossilize well in this type of rock.
C. Nearly all fossils form in sedimentary rock.
D. Fish fossils only form on the shore in sedimentary rocks.
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Ok so I found a lot of these in my room and now they’re all dead and I have no idea what kinda bug it is so if you know what it is this is worth 20 points
Answers
Answer:
Hi! its a black beatle
Explanation: look up "black beatles bug"
What is the main difference between a producer and a consumer? Give an example to support your answer.
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Why do people lose the ability to hear high frequencies first before low frequencies?
Why is it harder to hear high pitches when you are older?
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50 POINTS!
Energy is transferred into the ecosystem when
1.when bacteria absorbs nitrogen from other organisms
2. dead organisms decay and form organic matter
3. rodent prey on invertebrates
4.plants grow from the soil
Answers
Answer:
2
Explanation:
Energy is transferred between organisms in food webs from producers to consumers.
The energy is used by organisms to carry out complex tasks. The vast majority of energy that exists in food webs originates from the sun and is converted (transformed) into chemical energy by the process of photosynthesis in plants.
Answer: between organisms in food webs from producers to consumers.
Explanation:
i needddddddddddddddddd help pls !!
Answers
Answer: 1. newton's second law states that the acceleration of an object is directly related to the net force and inversely related to its mass. The acceleration of an object depends on two things, force, and mass.
2.The greater the mass of an object, the less it will accelerate when a given force is applied
3. 40kg cause its more lighter then the 400kg cause the 400kg is heaver then 40kg
Explanation:
i hope this helped you
Answer:
Explanation:
we know by newton's second law of motion that
F=ma
where F is force
m is mass
and a is acceleration
List all of the recessive traits you noticed in the pictures.
Answers
Answer:
straight hair
attached ear lobes
no dimples
Explanation: