According to Newton's first law, which characteristic of a moving object would remain constant if there were no othe
forces acting on it?
O size
mass
shape
speed
Answer:
The mass
Explanation:
The mass is can somewhat control the speed of an object like the rollback can.
6. A bus travels down a straight highway and goes from 0 to 10m/s in 5 seconds.
What is its acceleration?
a. 2m/s2
b. 3m/s2
c. 4m/s2
d. 5m/s2 7. A car can travel 50 meters in 10 seconds. A fast motor bike can travel 5 meters
in a second. A bus can cover 500 meters in 100 seconds. Which vehicle has the
highest speed?
a. The car has the highest speed because it travels a great distance in a
short time.
b. The bus has the highest speed because it can travel the greatest distance.
c. The bike has the highest speed because it has the shortest travel time.
d. All their speeds are equal.
8. Which of the following is TRUE about speed and velocity?
a. Speed is a vector and velocity is scalar.
b. Velocity is the speed in a particular direction.
c. An object can accelerate even if the velocity is constant.
d. A change in speed causes an acceleration. A change in velocity causes
deceleration.
9. A bicycle has an average speed of 2m/s. This means that _________.
a. in 1 second, it travels 1 meter
b. it can travel 4 meters in 2 seconds
c. it takes 2 seconds to travel 1 meter
d. it can travel 2 kilometers in one hour
10.An object can accelerate while moving at constant speed. Which situation
illustrates this?
a. A roller coaster making a fast dive.
b. A bus going uphill at constant speed.
c. A bump car going in circles at constant speed.
d. A car moving down a straight highway at constant speed.
Answer:
6) 2m/s²
7)All the speeds are equal
8) Velocity is speed in a particular direction
9) it can travel 4 m in 2 sec
10)a bus going uphill at constant speed (not sure abt this)
3. If muscle contraction were an athletic game, calcium would be the most valuable player. Describe,
using some depth, the roles calcium is serving both inside the muscle fiber and outside at the NMJ.
Answer:
Explanation:
At the NMJ, calcium is responsible for "unlocking" the ligand gated channels, allowing AcH to be released into the synaptic cleft. When AcH binds and the AP moves down the sarcolemma and into the t-tubule, calcium is then released from the sarcoplasmic reticulum into the sarcoplasm. It then binds to the calcium subunit of troponin, causing a confirmational change in tropomyosin, exposing the active sites on actin. This allows the myosin heads to bind, causing muscle contraction.
What is not a job of the skin tissue?
Regulates body temperature
O Protects interior of the body
Contains nerves to sense external environment
O Provides support for bones
Answer:
provides support for bones
By which process do plants lose their water to atmosphere
Answer:
I believe your answer is evaporation
Explanation:
the liquid inside the plant is heated by the sun and evaporates into the atmosphere by the way please DONT click on link answers!
Complete the sentence.
Decomposers ________. means
Answer:
Decomposers are organisms that break down dead or decaying organisms, they carry out decomposition, a process possible by only certain kingdoms, such as fungi.
Explanation:
what is short day plant?
Answer:
[tex]\huge\boxed{Answer\hookleftarrow}[/tex]
✐ A plant that requires a long period of darkness, is termed a "short day" (long night) plant. Short-day plants form flowers only when day length is less than about 12 hours. Many spring and fall flowering plants are short day plants, including chrysanthemums, poinsettias and Christmas cactus.
____________________
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# ꧁❣ RainbowSalt2²2² ࿐
[tex] \huge \boxed{\mathfrak{Question} \downarrow}[/tex]
What's a short day plant?[tex] \large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}[/tex]
While not common, there are some plants that need more darkness than light to survive & flower. These plants perform better when they're exposed to more darkness. These type of plants are known as short day plant (that is, they need shorter day [approximately less than 12 hours] & longer nights to survive)Cotton, rice & chrysanthemums are examples of short day plants.Farmers need to make many decisions about how they grow their crops. One of these decisions is whether to use synthetic fertilizer or organic fertilizer, such as manure.
An advantage of using synthetic fertilizer instead of organic fertilizer is that
A synthetic fertilizer can provide more targeted macronutrients to the crops
B) synthetic fertilizer remains in the soil longer than organic fertilizer does, reducing the volume needed and, therefore, the cost to the farmer
c) synthetic fertilizer adds to soil texture and increases the soil's water-holding capacity
organic fertilizer runs off more readily into waterways, leading to nutrient overload
An advantage of using synthetic fertilizer instead of organic fertilizer is that
synthetic fertilizer can provide more targeted macro nutrients to the crops.
Synthetic fertilizers are used by farmers to increase crop yield. The fertilizer
are specially formulated to ensure all the macro-nutrients are present in the
right proportions for optimal yield of the crops.
This is the advantage synthetic fertilizers have as organic fertilizer don't
contain all the targeted macro nutrients in the right amounts.
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Decomposers ________. what is a Decomposers
Answer:
Decomposers are organisms that break down dead or decaying organisms, they carry out decomposition, a process possible by only certain kingdoms, such as fungi.
Hope this is what ur looking for
Explanation:
Answer:
Decomposers are organisms that break down dead or decaying organisms, they carry out decomposition, a process possible by only certain kingdoms, such as fungi.
Explanation:
describe the parts of a medical emergency card
What if earth didn't revolve around the sun, but was rather in a fixed position relative to the sun
Answer:
Anything on the trailing side would be pulverized against the Earth. It would be a horrible, gooey mess. But even if the Earth slowed gently to a stop, it would still be a horrible mess. Without the outward centripetal force to counteract the inward pull of gravity, the Earth would begin falling towards the sun.
Explanation:
Cancer is a disease of the cell cycle. Which of the following is NOT true of cancer cells? Cancer cells engage in uncontrolled cell division. Cancer cells ignore signals that should cause them to stop dividing Cancer cells exit the cell cycle (stop dividing) when abnormal cellular activity is deteced.
Answer:
Cancer cells exit the cell cycle (stop dividing) when abnormal cellular activitiy is detected is your answer.
Explanation:
This is the answer because cancer cells are what cause tumors which are basically when cells are dividing uncontrollably. Cancer cells never ever exit cell cycle they are always repeating it causing abnormal production of cancer cells so the last answer cancer cells exit the cell cycle is false making it the answer for this question.
50. The flow chart below shows how a metamorphic rock can change into a
sedimentary rock. Which of these processes would be the correct label to
replace the question mark?
Metamorphic rock
Sediment
Sedimentary rock
Erosion
?
A) Cooling
B) Deposition
C) Melting
D) weathering
Answer:
The process that would be the correct label to replace the question mark in this question is:
B) Deposition
Explanation:
Deposition takes place after erosion of sedimentary rock. At this stage, the eroded sedimentary rocks build up under high pressure heat, wind, ice, water, and other natural forces to originate the rock formation cycle once again. Naturally, after deposition, the igneous rocks, which have then layered up sedimentary rocks to become metamorphic rocks.
1. Based on the examples in the table, how do opinions differ from facts?
2. How do facts differ from theories?
3. Although they're different, what relationship exists between facts and theories?
4. What do all the theories in the table have in common?
5. How do laws differ from theories?
6. If someone told you that plate tectonics is just a theory and that it hasn't been accepted as a law yet, how would this
information conflict with what you understand about theories and laws?
1. Opinions are not always right; facts are.
2. Theories are sometimes right, but sometimes they are either wrong or a little off; facts are on point and with the exact answer.
3. A theory is a scientific explanation of a fact.
4. They all have a good amount of information; also they say approximately to let you know it's not the exact answer.
5. A law is more like a prediction of what will happen if the situation is given and it's shown by the mathematical equation; Theory describes what happens. (Happened).
6. This would try to go against my understanding but it won't happen because I know that theories don't become laws or vice-versa; theories remain theories and law remain laws.
Define surface tension??
Answer:
[tex]\huge\boxed{Answer\hookleftarrow}[/tex]
⎇ Surface tension could be defined as the property of the surface of a liquid that allows it to resist an external force, due to the cohesive nature of the water molecules.
____________________
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# ꧁❣ RainbowSalt2²2² ࿐
[tex] \huge \boxed{\mathfrak{Question} \downarrow}[/tex]
What's surface tension?[tex] \large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}[/tex]
Okay, so surface tension is the energy which is required to increase the surface area of a liquid due to intermolecular forces. The formula for surface tension is :-[tex] \boxed{ \boxed{ \sf\gamma = \frac{1}{2} . \frac{f}{l} }} \\ [/tex]
Here,
gamma = surface tension
f = force
l = length
What types of cells make up the nervous system?
Answer:
Neurons
Explanation:
Answer: Red Blood Cells
How much has the greenhouse gas carbon dioxide increased in the air just in the last few years? ITS DUE IN A FEW HOURS PLEASE HELP!
Answer:
approximately 2.3 parts per million (ppm) per year
Explanation:
In 2019, the global amount of atmospheric carbon dioxide (CO2) has been estimated at approximately 410 parts per million (ppm). These levels are higher than at any time in the last 800,000 years, and it has been estimated that in 2025 the CO2 levels will be higher than at any time in the last 3.3 million years. In 2018, there has been an increase of approx. 2.5 ppm, the same increase observed between 2017 and 2018. Moreover, the average increase of the CO2 levels in the atmosphere between 2009 and 2018 was 2.3 ppm each year.
why can the plant grow new parts but we cannot?
Answer: because, humans can't/don't regenerate in the same way
Explanation:
Plants excel in regenerating new parts due to factors like meristematic tissues, totipotency, indeterminate growth, and unique genetic traits. These enable continuous cell division, organ regeneration, and lifelong growth, while human regenerative abilities are more limited and specialized.
Plants have the remarkable ability to grow new parts due to their unique characteristics and physiological processes. While humans and other animals also have the ability to regenerate certain tissues and organs. Here are a few reasons why plants can grow new parts more effectively:
Meristematic Tissues: Plants have specialized regions called meristems that contain undifferentiated cells capable of continuous division and differentiation. These meristematic tissues are found in areas such as the tips of roots and shoots, allowing for continuous growth and regeneration. In contrast, humans have limited areas of active cell division, such as the bone marrow and the skin's basal layer, which restricts our regenerative capacity.
Totipotency: Plant cells have a higher degree of totipotency, meaning they have the potential to differentiate into various cell types and give rise to a whole plant. This property allows plants to regenerate entire organs, such as roots, stems, leaves, and even whole plants from small tissue pieces. In humans, cell differentiation is more specialized and limited, making it challenging to regenerate complete organs.
Indeterminate Growth: Most plants exhibit indeterminate growth, meaning they can grow throughout their lifespan. This continuous growth allows plants to replace damaged or lost parts by generating new tissues and organs. In contrast, humans and animals typically have determinate growth, where growth ceases or significantly slows down after reaching a certain size or age.
Hence, plants grow, but humans can't grow.
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In the beginning of "A Growing Problem," how does the author
introduce his argument that nonnative species should not live in
Florida?
O A. by comparing Florida to Southeast Asia
O
B. by comparing pythons to alligators
O
C. by referencing facts about the dangers of pythons
O
D. by referencing people's expectations of the Everglades
Answer: D
Explanation:
i took the quiz
Answer:
D.
Explanation:
I JUST submitted the test
how does the envirment select organisms
Answer:
The environment "selects" organisms that are better adapted to their environment and thus have a better chance to survive and reproduce. ... Helpful variations accumulate through natural selection, as the organisms that are better adapted to their environment reproduce offspring with the same variations.
Explanation:
Why are lipids and proteins free to move laterally in membranes?
A) The interior of the membrane is filled with liquid water.
B) There are no covalent bonds between lipid and protein in the membrane.
C) Hydrophilic portions of the lipids are in the interior of the membrane.
D) There are only weak hydrophobic interactions in the interior of the membrane.
E) Molecules such as cellulose can pull them in various directions.
HEY BESTAY I NEED UR HELP WILL MARK U BRAINLIEST
Which part of the carbon cycle shown in the figure contributes the most to the greenhouse effect?
(20 Points)
The decay process returns carbon dioxide to the soil.
The remains of dead organisms gradually change into fossil fuels.
Photosynthetic organisms remove carbon dioxide from the atmosphere.
A Burning fossil fuels and wood releases carbon dioxide into the atmosphere.
(I need help will make brainlyest) Which shows the correct order for the classification of species------------------
A) Domain, Kingdom, class, Order, Phylum, Family, Genus, and species-------------------------
B) Domain, Kingdom, Phylum, class, order, Family, Genus, and species--------------------------
C) Domain, Kingdom, Phylum, Class, Order, Family, Species, and Genus------------------------
D) Domain, Kingdom, Phylum, class, order, family, genus, species----------------------------------
Why was Copernicus's heliocentric model not believed until Galileo and Kepler provided mo
The model had the moon orbiting Earth.
The model was against religious teachings.
The model could not explain retrograde motion.
The model did not include all eight planets in the solar system.
Answer:
the model was against religious beliefs.
Water located in wells underground is
A
run-off.
B
precipitation
с
ground water.
D
condensation.
Answer:
Aquifers but since there is no answer choice I say groundwater .
Hope this helps .
Water located in wells underground is ground water. Therefore, the correct option is option C.
Water that is found below the earth's surface in cracks in rocks and the crevices between soil particles is known as groundwater. It is essential for maintaining ecosystems on our planet and supporting human activities. Groundwater is created and made available by precipitation and surface water that seeps into the ground. It gathers in subterranean aquifers, which are enormous water reservoirs contained in permeable rocks or sediments. The thickness and depth of these aquifers vary. Groundwater supply is influenced by elements like rainfall, geology, and human use. Groundwater is an important resource since it is necessary for a variety of purposes. It provides over half of the world's population with their main supply of drinking water.
Therefore, the correct option is option C.
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all of the following about gastrin are true except
Answer: Gastrin is released into the lumen of the stomach.
plzz mark brainliest
Explanation:
The moon's relative motion causes
A)
ocean tides.
B)
wind currents.
the phases of the Moon.
D)
the rotation of the Moon.
Answer: the phases of the moon
Explanation: i did it
What does the field of proteomics study? The structure and function of cellular lipids and how they interact to contribute to traits. The structure of carbohydrates and how they are converted into a useable form of energy for the body. The interaction between cellular proteins and how they make up the bulk of the cell membrane. The structure and function of cellular proteins and how they interact to contribute to traits. The structure of prions and how they can lead to various diseases within the body.
Answer:
The structure and function of cellular proteins and how they interact to contribute to traits.
Explanation:
Proteomics is a research area that studies proteomes and their interactions with other cellular components (e.g., transcription factors involved in DNA-protein interactions, ribonucleoprotein complexes involved in RNA-protein interactions, etc). A proteome can be defined as the entire set of proteins synthesized by an organism. The proteomics field allowed us to identify common protein functions (structural and enzymatic functions), as well as understand how protein expression (which is regulated by genetic and environmental factors) influences cellular metabolic activities (e.g., iron uptake).
Anna went to her physician complaining of fatigue and swelling in her legs. She explained the doctor that she exercises often and does not drink water. She also revealed that she is smoker. Doctor sad that she was dehydrated, had edema and probably hypoproteinemia (low plasma protein concentration). He ordered some blood tests and ECG. ECG revealed that she had atrial fibrillation, which he said might explain her fatigue. Doctor advised her perhaps exercise more moderately, drink water and that she should definitely stop smoking.
- How might a blood test help to diagnose the cause of Jessica’s fatigue and edema?
- How does her hypoproteinemia relate to her edema?
- How would dehydration influence blood volume, stroke volume, and cardiac output?
- What is atrial fibrillation, and how does it appear on an ECG?
- How might atrial fibrillation explain Anna’s fatigue?
Friction reduces efficiency because energy is lost as ____.
a.
work
c.
gravity
b.
heat
d.
thrust
Please select the best answer from the choices provided
A
B
C
D
Answer:
option (b) heat is right answer