Answer:
11.47 m
Explanation:
Givens
vi = 15 m/s
a = - 9.81 m/s^2
vf = 0
d = ?
Formula
vf^2 = vi^2 + 2ad
Solution
0 = (15)^2 + 2*(-9.81)*d
- 225 = 2 * - 9.81 *d
-225 = - 19.62 * d
d = - 225/-19.62
d = 11.47 m
The height of the ceiling in the school gym from the floor is 11.48m.
HOW TO CALCULATE HEIGHT OF A PROJECTILE:
Using one of the equations of motion as follows:v² = u² + 2as
Where;
v = final velocity (m/s)
u = initial velocity (m/s)
a = gravitational acceleration (m/s²)
s = distance traveled (m)
According to this question,
The final velocity (v) of the volleyball is 15m/sThe initial velocity is 0m/sThe acceleration due to gravity is 9.8m/sUsing the formula, v² = u² + 2as, the height of the ceiling (s) can be calculated as follows:
15² = 0² + 2 (9.8) (s)
225 = 0 + 19.6s
225 = 19.6s
s = 225/19.6
s = 11.48m
Therefore, the height of the ceiling in the school gym from the floor is 11.48m
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What is the function of the stomata in a leaf?
Answer:
it regulates the amount of air or moisture leaving or entering the leave
Explanation:
this is because it has tiny pores which helps in regulating the moisture or heat content leaving or entering the leave
Which equation is most likely used to determine the acceleration from a velocity vs time graph?
Answer:
The equation/formula to find acceleration from a velocity time graph is....
acceleration = velocity / time
Hope this helps!
Question 6 of 10
Which statement best describes the limits of science?
O A. Science cannot answer questions about the natural world.
OB. Science cannot answer questions about what people should do.
O C. Science can answer any question.
O D. Science can answer only mathematical questions.
SUBMIT
Answer:
I think B should be the answer because science cannot tell the future
How do the outer layers of cells on the underside of a leaf work to gather carbon dioxide?
The outer layers of cells on the underside of a leaf work to gather carbon dioxide by the utilization of stomata.
What are Stomata?Stomata may be defined as the presence of tiny pores in the epidermis of the leaf or stem of the plant. The fundamental function of this structure is to regulate the amount of gas exchange.
A massive amount of gaseous exchange takes place in the leaves through these pores for the purpose of photosynthesis.
The opening and closing of these stomata are regulated by the guard cells. In order to prevent water loss through such pores, plants are required to close such pores during mid-day.
Therefore, the outer layers of cells on the underside of a leaf work to gather carbon dioxide by the utilization of stomata.
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easy biology question below first correct answer gets brainliest!!
Molecules move from
diffusion.
during
A. high concentration to low concentration
B. an equally distributed concentration to an unequally
distributed concentration
C. one cell's nucleus to another cell's nucleus
Answer:
A) high concentration to low concentration is it's answer
Write any two factors that affect the efficiency of machine
Answer:
The factors that affect the efficiency of machine are
Conductor content _ load dependent Magnetic steel _ mainly constantI HOPE I HELP YOU.
why must the composition of the dialysis fluid be similar to that of the blood
Answer:
Because the purpose of dialysis is to mimic blood and clean the blood because the persons kidneys dont work. If it is not similar to blood it wont work
Explanation:
Explain why when you exercise your heart rate change?
(less than 20 words)
Answer:
when you are exercising the muscles need extra oxygen,for this oxygen to be supplied quick the heart pumps faster which makes a quicker pulse.
I hope this helps
Answer:
During exercise, your body may need three or four times your normal cardiac output, because your muscles need more oxygen when you exert yourself. During exercise, your heart typically beats faster so that more blood gets out to your body.Your heart can also increase its stroke volume by pumping more forcefully or increasing the amount of blood that fills the left ventricle before it pumps. Generally speaking, your heart beats both faster and stronger to increase cardiac output during exercise.
How far is the moon from the sun?
Answer:
150 million kilometers
Explanation:
The Moon is approximately 150 million kilometers from the Sun on average. Because the Earth orbits the Sun at a distance of roughly 150 million kilometers, this is a fascinating coincidence. Because the Moon orbits the Earth, it follows the Earth's orbit around the Sun.
OAmalOHopeO
Which of the following environments are low-level areas that can be temporarily or seasonally filled with water?
A. Rainforest
B. Swamp
C. Tundra
D. Wetland
its A, i took the test sorry for not anasewring at the right time of year, pardon me
The property of matter that allows a solid to flow is____.
1. Sublimation
2. Conductivity
3. Subduction
4. Plasticity
Answer:
hey mate I am 90 per cent sure that ans is option 2 ) conductivity
b3coz
Conductivity in metal is a measure of a material's ability to transmit heat, or electricity (or sound). The reciprocal of conductivity is resistance, or the ability to reduce the flow of those. ... Metals conduct electricity by allowing free electrons to move between the atoms
Answer:
2. Conductivity
Explanation:
Conductivity allows atoms to flow in solid by passing on vibration energy when any form of energy is applied.
different between dominant character and recessive character
Dominant character:are always expressed when the connected allele is dominant,even if only one copy of the dominant trait exits.
Recessive character:are expressed only if both the connected allele are recessive.
Answer:
Dominant and recessive traits exist when a trait has two different forms at the gene level. The trait that first appears or is visibly expressed in the organism is called the dominant trait. The trait that is present at the gene level but is masked and does not show itself in the organism is called the recessive trait.
Explanation:
If some traits are absent or not expressed, but found in the parent, then the allele is said to be recessive.
Difference Between Recessive and Dominant Traits
DOMINANT
Dominant Trait Recessive Trait
Dominant allele is denoted by a capital letter
RECESSIVE
Recessive allele is denoted by a small letter
HOPE it helps you
have a good day
What is a major difference between these two types of cells?
The location of the cytosol
The location of the DNA
The presence of a plasma membrane
The presence of ribosomes
Answer:
I think the answer is the presence of a plasma membrane.
Answer: Location of the DNA :)
The conversion of glucose to glucose 6-phosphate is an enzyme-catalyzed reaction. During this reaction, the enzyme hexokinase folds around the substrates to bring reactive side chains from the active site into alignment with the substrates. This change in hexokinase is an example of
Answer:
Induced fit
Explanation:
Induced fit (IF) is a model used to understand enzyme-substrate interactions, which can be considered as a development of the classical lock-and-key model. This model (IF) was proposed by Daniel Koshland (1958) in order to understand protein conformational changes during the binding process. The model states that the active site of the enzyme, i.e., the region where the substrate binds and catalyzes the reaction, is reshaped when it binds with its substrate in order to improve the fit. The IF model assumes that the active site of the enzyme is flexible and is capable of changing its shape until the substrate is completely bound.
which are forms of nitrogen that are unsable by humans
Answer:
The forms of nitrogen that are unusable by us humans are the gaseous forms of N2 as they can't be used by most living things.
The forms of nitrogen that are usable by us humans are Ammonia, Nitrates, and Nitrites.
--> 42. Smallest blood cells is ->
Answer:
rbc
Explanation:
hope it's helpful and have a great day ahead
How do animals and people cause weathering?
How do plants cause weathering ?
Answer:
Plants can cause mechanical and chemical weathering
Explanation:
Plants can cause mechanical and chemical weathering. When plants cause mechanical weathering, their roots grow into rocks and crack them.It can also happen in streets or sidewalks. When plants cause chemical weathering, there roots release acid or other chemicals, onto rocks, which then forms cracks, and breaks apart.
Animal and plant mobility is a factor in biological weathering, for instance, a plant may grow in a gap in a rock and, as its roots spread, cause the fracture to expand.
What is the cause of weathering?A rabbit may also burrow into a crack in a rock, making it wider and eventually separating the rock.
Animals and plants can act as mechanical weathering agents. In dirt that has gathered in fractured rock, a tree seed may emerge. The fissures get wider as the roots spread out, finally shattering the rock into pieces.
Even big rocks might get dislodged by trees over time, rocks are broken down by plants like moss that absorb their minerals.
Therefore, holding onto soil and rocks is another way that plant roots cause weathering, and might stop erosion.
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Why are scientific journals considered a superior resource compared to other sources of scientific information?
I NEED HELP
Scientific journals are regarded as more superior due to the fact that they are peer reviewed.
What this means is that before a scientific journal would be approved for publishing, it first has to be reviewed by some experts in that scientific field.
What these peers do is to Approve the journal, make suggestion to the work, or they can decide to reject the work if they find it unsatisfactory.
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Scientific journals are generally specialized for distinct academic fields or subdisciplines, and they are the most important way of communicating research findings.
However, Scientific information is concerned with the creation, gathering, categorization, retention, retrieval, interpretation, transmission, and usage of data.
The major difference is that Scientific journals are peer reviewed while scientific information are merely gathering of information.
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Which of the following is NOT of the major biogeochemical cycles?
A.Life cycle
B.Water cycle
C.Carbon cycle
D.Phosphorus cycle
water cycle............
The following is NOT of the major biogeochemical cycles D.Phosphorus cycle is D.Phosphorus cycle.
What is the difference between Carbon cycle and Phosphorus cycle?The major distinction among carbon and phosphorus cycle is that carbon cycle interacts with the environment while phosphorus cycle does now no longer engage with the environment. Therefore, the carbon cycle is a sort of gaseous biking while the phosphorus biking is a sort of sedimentary rocks.
As in comparison to nitrates & different macro elements, decomposers take longer time to decompose any lifeless biota into phosphates. Decomposers are organisms mainly a soil bacterium, fungus, or invertebrate, that decompose natural material. These are the motives for phosphorus cycle being the slowest biogeochemical cycle.
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Choose all the answers that apply. Grasslands o have less than 25cm of rain per year are used to grow cereal grasses are only found in the United States has the largest species diversity of all the biomes O are largely temperate
The organs in the human body perform specific functions for survival.
Organ A delivers blood to the body
Organ B delivers oxygen to the body
Organ C delivers messages to the body
Which of the following correctly identifies the organs that perform each function above?
Organ A is the heart, Organ B is the brain, and Organ C is the lungs
Organ A is the heart, Organ B is the lungs, and Organ C is the brain
Organ A is the lungs, Organ B is the brain, and Organ C is the heart
Organ A is the lungs, Organ B is the heart, and Organ C is the brain
Organ A is the heart
Organ B is the lungs
Organ C is the brain
Because heart only delivers blood to lungs and other body tissues, Lungs input oxygen into the blood and brain sends signals and messages to the body parts.
This is the answer. Hope it helps you
Answer:
B) Organ A is the heart, Organ B is the lungs, and Organ C is the brain
Explanation:
trong chương trình lớp 7 các em đã học các ngành động vật nào?
Answer:
what's this can u explain me in hindi pls
which of these resources can not be renewed? A. Solar B. Coal C. Wind D. Biomass
Answer:
coal
Explanation:
it is a non renewable energy source
A bat is a mammal even though it flies in air. give reason
Answer:
Bats are mammals. As the bats are warm blooded, and they can fly like the birds, bats are known as flying animal. Means they have two unique characteristics. They can fly like birds, and can give birth and suckle to their young ones like animals.
Answer:
because it has wings
Explanation:
the answer is simple
bat fly
blue whale swim
but both are mammal
Discussion
1. What changes occurred in the diameter of the onion rings that were immersed in the distilled
werter and concentrated sucrose solution? State the difference in the concentration of water
molecules in the onion cells and the solutions.
(a) Distilled water
(b) Concentrated sucrose solution
2. Explain why the changes occurred in the onion rings immersed in:
(a) distilled water;
(b) concentrated sucrose solution.
In this case, it is important to have into account the properties of hypertonic (sucrose) and hypotonic (distilled water) solutions:
Sucrose solution (higher concentration of water molecules in the onion cells) >> red onion cells will shrink >> smaller diameter.Distilled water (higher concentration of water molecules in the surrounding solution) >> red onion cells will become turgid >> higher diameterOsmosis refers to the movement of a solvent (usually water molecules) across semipermeable biological membranes, which occurs from a region of higher concentration to a region of lower concentration. There are three classes of solutions that have different effects on cells due to the process of osmosis:In a hypotonic solution, the cells will become turgidIn an isotonic solution, the cells will become flaccidIn a hypertonic solution, the cells will shrink (plasmolysis)When plant cells are placed into a hypertonic solution where there is a greater concentration of solute outside the cells (as in this case sucrose solution), water molecules will move from inside the cells to outside the cells, thereby cells will shrink due to water lossMoreover, when plant cells are placed into a hypotonic solution that is diluted in comparison to the content of the cell (as in this case plant cells placed in distilled water) water molecules will move from outside the cells to inside the cells, thereby cells will become turgid.Learn more about this topic here:
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The Energetic Cost of Mismatch Repair. In an E. coli cell, DNA polymerase III makes a rare error and inserts a G opposite an A residue at a position 650 bp away from the nearest GATC sequence. The mismatch is accurately repaired by the mismatch repair system. How many phosphodiester bonds de- rived from deoxynucleotides (dNTPs) are expended during this repair
Which major processes were needed for the origin of life on Earth?
Answer:
I think it's a climate
Which of the following is an autotroph?
A. A consumer
B. A prey
C. A predator
D. A producer
Answer:
D) producer
Explanation:
An autotroph, or main producer, is a living creature that uses carbon from basic molecules like carbon dioxide to build complex organic compounds, usually with the help of light or inorganic chemical processes.
OAmalOHopeO
which of the following are human activities that can negatively impact ecosystems.
Answer:
Hey not sure if there is something that is supposed to be viewable but some common human activities that can impact ecosystems are, deforestaion, pollution, littering, fracking, spilling oil into the oceans.
Explanation:
Answer:
You didn't put a photo but cutting down trees of putting chemicals into the water/earth can harm ecosystems
mention 6 substances secreted by the body
Answer:
Saliva
Lipase
Amylase
Trysin
Pepsin
Erepsin
Explanation:
Substances? Just any substances?
